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IBM BladeCenter Management Module, Инструкция по установке и эксплуатации

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Appendix B. Run-time switching software default settings

. . . . . . . 117

Appendix C. Cable lengths

. . . . . . . . . . . . . . . . . . . 119

Appendix D. Understanding and troubleshooting the Spanning Tree

Protocol

. . . . . . . . . . . . . . . . . . . . . . . . . . 121

STP operation levels . . . . . . . . . . . . . . . . . . . . . . 121
Bridge protocol data units

. . . . . . . . . . . . . . . . . . . . 122

Creating a stable topology . . . . . . . . . . . . . . . . . . . . 122

STP port states . . . . . . . . . . . . . . . . . . . . . . . 122
Setting user-changeable STP parameters

. . . . . . . . . . . . . 124

Illustration of STP . . . . . . . . . . . . . . . . . . . . . . 125

Blocking state . . . . . . . . . . . . . . . . . . . . . . . . . 127
Listening state

. . . . . . . . . . . . . . . . . . . . . . . . 128

Learning state . . . . . . . . . . . . . . . . . . . . . . . . . 129
Forwarding state . . . . . . . . . . . . . . . . . . . . . . . . 130
Disabled state . . . . . . . . . . . . . . . . . . . . . . . . . 132
Troubleshooting STP . . . . . . . . . . . . . . . . . . . . . . 133

Spanning Tree Protocol Failure

. . . . . . . . . . . . . . . . . 133

Full/half duplex mismatch

. . . . . . . . . . . . . . . . . . . 133

Unidirectional link

. . . . . . . . . . . . . . . . . . . . . . 134

Packet corruption

. . . . . . . . . . . . . . . . . . . . . . 135

Resource errors . . . . . . . . . . . . . . . . . . . . . . . 135
Identifying a data loop . . . . . . . . . . . . . . . . . . . . . 136
Avoiding network problems . . . . . . . . . . . . . . . . . . . 136

Appendix E. Getting help and technical assistance

. . . . . . . . . . 141

Before you call

. . . . . . . . . . . . . . . . . . . . . . . . 141

Using the documentation . . . . . . . . . . . . . . . . . . . . . 141
Getting help and information from the World Wide Web

. . . . . . . . . 141

Software service and support . . . . . . . . . . . . . . . . . . . 142
Hardware service and support . . . . . . . . . . . . . . . . . . . 142

Appendix F. Warranty information

. . . . . . . . . . . . . . . . . 143

Warranty period . . . . . . . . . . . . . . . . . . . . . . . . 143

Problem determination

. . . . . . . . . . . . . . . . . . . . 143

Running diagnostics

. . . . . . . . . . . . . . . . . . . . 143

Checking software . . . . . . . . . . . . . . . . . . . . . 143

Warranty service and support . . . . . . . . . . . . . . . . . . 144
International Warranty Service . . . . . . . . . . . . . . . . . . 144
Purchasing additional services. . . . . . . . . . . . . . . . . . 145

IBM Statement of Limited Warranty Z125-4753-06 8/2000

. . . . . . . . 146

Part 1 - General Terms

. . . . . . . . . . . . . . . . . . . . 146

Part 2 - Country-unique Terms . . . . . . . . . . . . . . . . . . 148

Appendix G. Notices

. . . . . . . . . . . . . . . . . . . . . . 155

Edition notice . . . . . . . . . . . . . . . . . . . . . . . . . 155
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . 156
Important notes . . . . . . . . . . . . . . . . . . . . . . . . 156
Electronic emission notices . . . . . . . . . . . . . . . . . . . . 157

Federal Communications Commission (FCC) statement

. . . . . . . . 157

Industry Canada Class A emission compliance statement . . . . . . . . 158
Australia and New Zealand Class A statement . . . . . . . . . . . . 158
United Kingdom telecommunications safety requirement . . . . . . . . 158
European Union EMC Directive conformance statement . . . . . . . . 158
Taiwanese Class A warning statement . . . . . . . . . . . . . . . 158

vi

IBM BladeCenter 4-Port Gb Ethernet Switch Module: Installation and User’s Guide

Содержание BladeCenter Management Module

Страница 1: ...IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ERserver ...

Страница 2: ......

Страница 3: ...IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ERserver ...

Страница 4: ...dix F Warranty information on page 143 and Appendix G Notices on page 155 First Edition November 2002 Copyright International Business Machines Corporation 2002 All rights reserved US Government Users Restricted Rights Use duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp ...

Страница 5: ...panel 15 LEDs 15 Chapter 4 Switch management and operating concepts 17 Ethernet switch subsystem overview 17 BladeCenter chassis configuration and operation 17 Switch management and control 18 IP addresses and SNMP community names 19 Traps 20 MIBs 21 SNMP 22 Authentication 22 Packet forwarding 23 Spanning Tree Protocol 23 VLANs 24 Notes about VLANs on IBM BladeCenter 4 port Gb Ethernet switch modu...

Страница 6: ...ng up trap receivers 58 Setting up user accounts 59 Assigning Root User and User privileges 61 Network Monitoring 62 Statistics 62 Port Utilization 62 Port Error Packets 62 Port Packet Analysis 64 Address Table 65 Applications 66 GVRP 66 LACP Aggregator 66 IGMP Snooping 67 Switch History 67 Maintenance 68 Using TFTP Server 68 Download Configuration File 68 Upgrade Firmware 69 Upload Configuration ...

Страница 7: ... Server 90 Upload Configuration File to TFTP Server 91 Save Log to TFTP Server 91 Ping Test 92 Network Monitoring 92 Port Utilization 93 Port Error Packets 93 Port Packet Analysis 94 Browse MAC Address Table 94 GVRP 95 IGMP Snooping 95 LACP Aggregator 96 Switch History 96 Restarting the switch module 97 Logging out 98 Advanced Setup 99 Spanning Tree 99 STP Port Settings 100 Forwarding 101 Class of...

Страница 8: ...help and information from the World Wide Web 141 Software service and support 142 Hardware service and support 142 Appendix F Warranty information 143 Warranty period 143 Problem determination 143 Running diagnostics 143 Checking software 143 Warranty service and support 144 International Warranty Service 144 Purchasing additional services 145 IBM Statement of Limited Warranty Z125 4753 06 8 2000 ...

Страница 9: ...Japanese Voluntary Control Council for Interference VCCI statement 159 Index 161 Contents vii ...

Страница 10: ...viii IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 11: ...än tuotteen lue turvaohjeet kohdasta Safety Information Avant d installer ce produit lisez les consignes de sécurité Vor der Installation dieses Produkts die Sicherheitshinweise lesen Prima di installare questo prodotto leggere le Informazioni sulla Sicurezza Les sikkerhetsinformasjonen Safety Information før du installerer dette produktet Antes de instalar este produto leia as Informações sobre S...

Страница 12: ... fire water or structural damage v Disconnect the attached power cords telecommunications systems networks and modems before you open the device covers unless instructed otherwise in the installation and configuration procedures v Connect and disconnect cables as described in the following table when installing moving or opening covers on this product or attached devices To Connect To Disconnect 1...

Страница 13: ...a module containing a lithium battery replace it only with the same module type made by the same manufacturer The battery contains lithium and can explode if not properly used handled or disposed of Do not v Throw or immerse into water v Heat to more than 100 C 212 F v Repair or disassemble Dispose of the battery as required by local ordinances or regulations Safety xi ...

Страница 14: ...stments or performance of procedures other than those specified herein might result in hazardous radiation exposure DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode Note the following Laser radiation when open Do not stare into the beam do not view directly with optical instruments and avoid direct exposure to the beam Class 1 Laser Product Laser Klasse 1 Laser Klass...

Страница 15: ...power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from the device ensure that all power cords are disconnected from the power source 1 2 Safety xiii ...

Страница 16: ...t 8 CAUTION Never remove the cover on a power supply or any part that has the following label attached Hazardous voltage current and energy levels are present inside any component that has this label attached There are no serviceable parts inside these components If you suspect a problem with one of these parts contact a service technician xiv IBM BladeCenter 4 Port Gb Ethernet Switch Module Insta...

Страница 17: ...m electrical requirements do not exceed branch circuit protection requirements Refer to the information that is provided with your device for electrical specifications Statement 14 CAUTION Hazardous voltage current and energy levels might be present Only a qualified service technician is authorized to remove the covers where the following label is attached Safety xv ...

Страница 18: ...xvi IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 19: ... capabilities were key considerations in the design of your BladeCenter 4 Port Gb Ethernet Switch Module These design features make it possible for you to customize the system hardware to meet your needs today while providing flexible expansion capabilities for the future If you have access to the World Wide Web you can obtain up to date information about your BladeCenter 4 Port Gb Ethernet Switch...

Страница 20: ...ort Gb Ethernet Switch Module v BladeCenter 4 Port Gb Ethernet Switch Module Installation Guide This printed publication contains setup and installation instructions for the IBM BladeCenter 4 Port Gb Ethernet Switch Module This publication also provides general information about your Ethernet switch module including information about getting started first time connection to the Ethernet switch mod...

Страница 21: ...e BladeCenter unit and the BladeCenter HS20 Type 8678 product each come with a customized Hardware Maintenance Manual and Troubleshooting Guide These publications are provided in PDF on the IBM BladeCenter Documentation CD They contain information to help you solve the problem yourself or to provide helpful information to a service technician Depending on your blade server model additional publica...

Страница 22: ...uation v Danger These statements indicate situations that can be potentially lethal or extremely hazardous to you A danger statement is placed just before the description of a potentially lethal or extremely hazardous procedure step or situation Major components of the BladeCenter 4 Port Gb Ethernet Switch Module The orange color on components and labels on your Ethernet switch module and BladeCen...

Страница 23: ...tomatic update Supports 28 K MAC address Priority queues Four priority queues per port Forwarding table age time Maximum age 17 to 2100 seconds Default is 300 seconds 802 1D Spanning Tree support Can be disabled on the entire switch or on a per port basis 802 1Q Tagged virtual local area network VLAN support including Generic Attribute Registration Protocol GARP VLAN Registration Protocol GVRP Sup...

Страница 24: ... 100 meters maximum 100BASE TX UTP Category 5 100 meters maximum EIA TIA 568 100 ohm STP 100 meters maximum 1000BASE T UTP Category 5e 100 meters maximum UTP Category 5 100 meters maximum EIA TIA 568B 100 ohm STP 100 meters maximum Standards and topology The following standards apply to the Ethernet switch module v IEEE 802 3 10BASE T Ethernet v IEEE 802 3u 100BASE TX Fast Ethernet v IEEE 802 3z G...

Страница 25: ... 2 in each blade server install an Ethernet switch module in switch module bay 2 If you install an interface option on any blade server you must install a hot swap switch module of the same interface type in switch module bay 3 to obtain connection 1 for the interface option To provide connection 2 for the interface option install a switch module of that interface type in switch module bay 4 The s...

Страница 26: ...it identifies hot swap or hot plug components You can install or remove hot swap modules while the BladeCenter unit is running For complete details about installing or removing a hot swap or hot plug component see the detailed information in this chapter v The blue color on components and labels identifies touch points where you can grip a component move a latch and so on v You do not need to turn...

Страница 27: ...sis for at least two seconds This drains static electricity from the package and from your body v Remove the device from its package and install it directly into your BladeCenter unit without setting it down If it is necessary to set the device down place it in its static protective package Do not place the device on your BladeCenter chassis or on a metal table v Take additional care when handling...

Страница 28: ...Handling static sensitive devices on page 9 2 Remove the acoustic attenuation module if installed from the rear of the BladeCenter unit Acoustic module Locking handle 3 Select a switch module bay in which to install the switch module 4 Select a switch module bay in which to install the switch module in accordance with the instructions in Ethernet interface requirements on page 7 10 IBM BladeCenter...

Страница 29: ...n the front of the switch module to the closed position 11 Make sure that the LEDs on the switch module indicate that it is operating properly Verify that v The dc power LED and the ac power LED on each power module are lit v The OK LED on each management module is lit v The OK LED on each switch module is lit 12 If you have other switch modules to install do so now otherwise go to step 13 13 Atta...

Страница 30: ...stalled from the rear of the BladeCenter unit see step 2 on page 10 for location 2 Select an appropriate switch module bay from which to remove a switch module in accordance with the instructions in Ethernet interface requirements on page 7 3 Unplug any cables from the selected switch module 4 Pull the release latch toward the bottom of the switch module as shown in the illustration The module mov...

Страница 31: ...ed another switch module in the bay reconnect any cables that you unplugged in step 3 8 Replace the acoustic attenuation module option if you removed it in step 1 Chapter 2 Installing and removing a switch module 13 ...

Страница 32: ...14 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 33: ...le and the network see LEDs v Fourteen internal ports one connected to each of the processor blades v Two internal full duplex 10 100 Mbps ports connected to the management module v Four external 1000BASE T Ethernet ports for 10 100 1000 Mbps connections to external Ethernet devices such as backbones end stations and servers These ports are identified as Ext1 Ext2 Ext3 and Ext4 in the switch confi...

Страница 34: ...ch error This amber LED is located next to the OK power on LED on the information panel This LED indicates that the switch module has a fault If the switch module fails the POST this fault LED will be lit Ethernet link This green link status LED is located at the top of each external 10 100 1000 Mbps port When this LED is lit on a port it indicates that there is a connection or link to a device on...

Страница 35: ...h switch module has four external 10 100 1000 Mbps Ethernet ports for connection to the external network infrastructure These ports are identified as Ext1 Ext2 Ext3 and Ext4 in the switch configuration menus and are labeled 1 through 4 from top to bottom on the switch module see Chapter 3 Information panel LEDs and external ports on page 15 for an illustration Depending on the application the exte...

Страница 36: ...ough the BladeCenter configuration utility program Once a transmission control protocol Internet protocol TCP IP communication path has been established with the switch module through the MM Ethernet port you can perform a series of management and control tasks These tasks are in the following categories v Configuration Modify switch parameter settings v Remote Management Setup v Network Monitorin...

Страница 37: ...70 127 Bay 2 192 168 70 128 Bay 3 192 168 70 129 Bay 4 192 168 70 130 The following illustration shows the switch module bay locations AC AC DC DC Switch module bay 3 Switch module bay 1 Switch module bay 4 Switch module bay 2 You can change the default switch IP address to meet the specification of your networking address scheme The switch also has a unique factory assigned media access control M...

Страница 38: ...r security you can set a list of IP addresses of the network managers that are permitted to manage the switch You can also change the default SNMP community strings in the switch and set the access rights of these community strings Traps Traps are messages that alert you of events that occur on the switch The events can be as serious as a restart for example someone accidentally turned off the swi...

Страница 39: ...mmunity string The switch automatically stores the source IP address of the unauthorized user New root This trap indicates that the switch has become the new root of the Spanning Tree The trap is sent by the switch soon after its election as the new root This implies that upon expiration of the topology change timer the new root trap is sent out immediately after the switch is elected as the new r...

Страница 40: ...nfiguring network devices SNMP enables network management stations to read and modify the settings of gateways routers switches and other network devices SNMP can be used to perform many of the same functions as a directly connected console or can be used within an integrated network management software package such as IBM NetView or Hewlett Packard OpenView SNMP performs the following functions v...

Страница 41: ... packet to all ports thus negating many of the benefits of having a switch Static forwarding entries are not affected by the aging time Spanning Tree Protocol The Institute of Electrical and Electronics Engineers IEEE 802 1D Spanning Tree Protocol STP enables the blocking of links between switches that form loops within the network When multiple links between switches are detected a primary link i...

Страница 42: ...ch module No matter what basis is used to uniquely identify blade servers and assign these nodes VLAN membership packets cannot cross VLANs without a network device performing a routing function between the VLANs The switch supports only IEEE 802 1Q VLANs The port untagging function can be used to remove the 802 1Q tag from packet headers to maintain compatibility with devices that are tag unaware...

Страница 43: ...enabled on all ports and work normally The IEEE 802 1Q standard restricts the forwarding of untagged packets to the VLAN of which the receiving port is a member The main characteristics of IEEE 802 1Q are as follows v Assigns packets to VLANs by filtering v Assumes the presence of a single global spanning tree v Uses an explicit tagging scheme with one level tagging 802 1Q VLAN packet forwarding T...

Страница 44: ...When a packet EtherType field is equal to 0x8100 the packet carries the IEEE 802 1Q 802 1p tag The tag is contained in the following 2 octets and consists of 3 bits of user priority 1 bit of Canonical Format Identifier CFI 1 and 12 bits of VLAN ID VID The 3 bits of user priority are used by 802 1p The VID is the VLAN identifier and is used by the 802 1Q standard Because the VID is 12 bits long 409...

Страница 45: ...ow 1 bit longer than it was originally the cyclic redundancy check CRC must be recalculated Dest Src Length EType Data Dest Src EType Tag Length EType Data Priority VLAN ID VLAN ID Adding an IEEE 802 1Q Tag Adding an IEEE 802 1Q Tag Old CRC Old CRC New CRC New CRC Orginal Ethernet Packet Orginal Ethernet Packet New Tagged Packet New Tagged Packet Port VLAN ID Packets that are tagged are carrying t...

Страница 46: ...he switch will drop the packet Because of the existence of the PVID for untagged packets and the VID for tagged packets tag aware and tag unaware network devices can coexist on the same network A switch port can have only one PVID but can have as many VIDs as the switch has memory in its VLAN table to store them Because some devices on a network might be tag unaware a decision must be made at each...

Страница 47: ...e same VLAN as the ingress port at the point of reception This eliminates the subsequent processing of packets that will just be dropped by the destination port VLANs The switch initially configures one VLAN VID 1 known as the DEFAULT_VLAN The factory default setting assigns all ports on the switch to the DEFAULT_VLAN As new VLANs are configured their respective member ports are removed from the D...

Страница 48: ...l DHCP servers in its range attempting to renew its lease Any DHCP server that can extend the lease sends an acknowledgment containing the extended lease and updated configuration information If the lease expires or if a DHCP server responds with a negative acknowledgment the client must release its current configuration and then return to the initializing state If the DHCP client uses more than o...

Страница 49: ...te This Web based management module does not accept Chinese language input or other double byte character set languages The Web based management module and the Telnet program are different ways to access the same internal switching software and configure it Thus all the settings that you encounter in Web based management are the same as those found in the Telnet program If your system application ...

Страница 50: ...r contains additional instructions for configuring the Ethernet switch module for this mode of operation The two previously described modes are only applicable to the Ethernet switch module The management module can only be remotely accessed through the 10 100 Mbps Ethernet port on the management module Getting started The first step in getting started with using Web based management for your swit...

Страница 51: ... are both case sensitive To increase system security change the password after you log onto the system for the first time and be sure to store the new password in a safe location The top panel shows a real time information panel display of the switch module The panel on the left side contains the main menu The featured items include Configuration Remote Management Setup Network Monitoring and Main...

Страница 52: ... switch module management features are described in the following sections in this chapter Configuration The Configuration menu includes Switch Information IP Setup Port Setting Switch Setup VLANs Multicasting Mirroring Spanning Tree Class of Service Link Aggregation and Forwarding as well as secondary windows 34 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 53: ...ss The Ethernet address for the device Boot PROM Version Version number for the firmware startup code Firmware Version Version number of the firmware code installed on the switch This can be updated by using the Update Firmware window in the Reset and Update section of the Switch Information window Hardware Version Version number of the hardware installed on the switch System Name A user assigned ...

Страница 54: ...and DHCP are only supported through the four external Ethernet ports on the switch module To use BOOTP and DHCP you must first enable these ports for remote management access through the BladeCenter management and configuration program For a detailed description of this program see the Eserver BladeCenter Type 8677 Installation and User s Guide on the IBM BladeCenter Documentation CD The switch de...

Страница 55: ...ort the switch module internal network interface and the management module internal and external interfaces must be on the same subnet Default Gateway The IP address that determines where packets with a destination address outside the current subnet should be sent The IP address of the device is usually the address of a router or a host acting as an IP gateway to handle connections to other subnet...

Страница 56: ...other selections enable you to force the port to operate in the specified manner Select 1000M Full for port operation at 1000 Mbps and full duplex Select 100M Full for port operation at 100 Mbps and full duplex Select 100M Half for port operation at 100 Mbps and half duplex Select 10M Full for port operation at 10 Mbps and full duplex Select 10M Half for port operation at 10 Mbps and half duplex T...

Страница 57: ...switch module see Configure Ports on page 38 Switch Settings When you select Switch Setup from the Configuration menu and Switch Settings from the Switch Setup menu a window similar to the following opens The user changeable parameters on this window are as follows Switch GVRP Disabled Group VLAN Registration Protocol is a protocol that enables members to dynamically join VLANs This is used to ena...

Страница 58: ...net interface can be idle before the switch automatically logs out the user The options are 2 mins 5 mins 10 mins 15 mins and Never Sessions 1 This sets the maximum number of available Telnet sessions VLANs This section includes Edit 802 1Q VLANs and 802 1Q Port Settings Edit 802 1Q VLANs To create modify or remove an 802 1Q VLAN select VLANs from the Configuration menu see Configuration on page 3...

Страница 59: ... VLANs from the Configuration menu see Configuration on page 34 2 Select Edit 802 1Q VLANs from the VLANs menu 3 Click Add on the Edit 802 1Q VLANs window A window similar to the following opens To add an entry enter the appropriate information in the preceding window Click Apply to make the changes effective To configure an 802 1Q static VLAN entry select the desired VLAN ID number in the first f...

Страница 60: ...VLAN Name The name of the VLAN that is being created Tag Specifies the port as either 802 1Q tagging or 802 1Q untagging Checking the box will designate the port as Tagging None Specifies the port as not being a static member of the VLAN but with no restrictions for joining the VLAN dynamically through GVRP Egress Specifies the port as being a static member of the VLAN Egress Member Ports are port...

Страница 61: ...packet arrives at its destination the receiving device will use the PVID to make VLAN forwarding decisions If a packet is received by the port and Ingress filtering is enabled the port will compare the VID of the incoming packet to its PVID If the two are unequal the port will drop the packet If the two are equal the port will receive the packet Port Priority Complete the following steps to displa...

Страница 62: ...enu 3 Select Port Ingress Filter from the 802 1Q Port Settings window A window similar to the following opens To set an Ingress Filter select the desired port and then use the drop down menu to enable it Click Apply to make your change effective An Ingress Filter enables the port to compare the VID tag of an incoming packet with the both the VIDs and PVIDs of VLANs assigned to the port If the VID ...

Страница 63: ... pruning and dynamic VLAN creation on 802 1Q trunk ports With GVRP the switch can exchange VLAN configuration information with other GVRP switches prune unnecessary broadcast and unknown unicast traffic and dynamically create and manage VLANs on switches connected through 802 1Q trunk ports Once you enable the desired port click Apply to make your changes effective Multicasting Multicasting is des...

Страница 64: ... the switch Querier State Non Querier This drop down menu can be set to Non Querier V1 Querier or V2 Querier This is used to specify the IGMP version 1 or 2 that will be used by the IGMP interface when making queries Robustness Variable 2 A tuning variable for sub networks that are expected to lose a large number of packets You can enter a value between 1 and 255 with larger values being specified...

Страница 65: ...changes current Select Save Changes to enter the changes into NVRAM see Saving changes on page 72 Mirroring The switch module enables you to copy frames that were transmitted and received on a source port and to redirect the copies to another target port The source port can be one of the four 10 100 1000 Mbps external ports while the target port is where you will connect a monitoring troubleshooti...

Страница 66: ...you try to mirror the traffic from a 100 Mbps port onto a 10 Mbps port this can cause throughput problems The port from which you are copying frames should always support an equal or lower speed than the port to which you are sending the copies Also the target port cannot be a member of a trunk group 2 Port mirroring is not possible if you use the same egress and ingress target port Spanning Tree ...

Страница 67: ...is indeed the root bridge If you set a Hello Time for your switch and it is not the root bridge the set Hello Time will be used if and when your switch becomes the root bridge Note The Hello Time cannot be longer than the Max Age Otherwise a configuration error will occur Forward Delay 4 30 Sec 15 The Forward Delay can be from 4 to 30 seconds This is the time any port on the switch spends in the l...

Страница 68: ...ther forward delay the STP will set the port to the forwarding state If the forward delay is 15 seconds the port will take 30 seconds to forward packets However when Fast STP is Enabled on a port the port will only take 15 seconds from link up to the time that it starts forwarding packets This is because enabling the Fast STP option will skip the learning state jumping directly to the forwarding s...

Страница 69: ...tch module provides user programmable mapping four Priority Queue assignments High Med High Med Low Low for the eight 802 1p priority classes 0 to 7 For the priority queue feature to take effect users must first enable the Output Priority Queue Method on the Class of Service window Otherwise only the round robin method can be used to schedule the packets in four different priority queues When Outp...

Страница 70: ...ed H Priority or High Priority When you are finished click Apply to make your changes effective Link Aggregation The switch module supports Link Aggregation or port trunking Port trunks aggregated ports can be used to increase the bandwidth of a network connection or to ensure fault recovery You can configure up to two trunk connections combining two to four ports into one fat pipe between any two...

Страница 71: ...or devices such as a server to the backbone of a network The switch module offers link aggregation on four external ports for up to two static trunk groups or two LACP 802 3ad link aggregation groups The trunked ports can be non continuous that is have non sequential port numbers All of the ports in the group must be members of the same VLAN In addition the trunked ports must all have the same spe...

Страница 72: ... environment use the trial and error approach checking the network monitoring windows to see which method will yield the best results in terms of efficiency The selected method is used as a hashing function to determine which packets will go to which port Non IP Packet Src Mac For non IP packets the available methods are Src Mac Dest Mac or Src Dest Mac IP Packet Src Mac For IP packets the availab...

Страница 73: ...follows Group ID The ID number of the trunk group Port Checks the number of ports that will be members of the trunk group Method Enables or disables the trunk group Setup IEEE 802 3ad Link Aggregation Use the IEEE 802 3ad Link Aggregation window to set up dynamic port trunking The user changeable parameters on this window are as follows LACP This parameter enables Link Aggregation to be Enabled or...

Страница 74: ...ty means a higher priority over other enabled link aggregation ports in the group Admin Key 1 This is the administrative key to control the way t hat links are aggregated In order to aggregate ports together the ports must have an equal Admin Key Mode Enabled A port or ports can be enabled to permit them to join or create a link aggregation group Oper Key This displays the operational key used by ...

Страница 75: ... Note Some of the described data fields only appear on some of these windows v A trap receiving station is a device that constantly runs a network management application to receive and store traps You can enter up to four entries v The information on these windows is described as follows IP Address The IP address of the trap receiving station If necessary consult your system network administrator ...

Страница 76: ...s The Management Station IP Settings window contains the following information SNMP Community Settings The SNMP Community Settings window contains the following information Setting up trap receivers The Setup Trap Receivers window contains the following information 58 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 77: ... Name Displays all current users for the switch Access Level Displays the current access level assigned to each corresponding user There are three access levels User User and Root A Root user has full read write access while a User has read only access A User has the same privileges as a User but with the added ability to restart the switch See Assigning Root User and User privileges on page 61 fo...

Страница 78: ...word and Confirm New Password fields Then select the desired access level Root User or User in the Access Level control and click Apply v The information on these windows is described as follows User Name Enter a user name in this field New Password Enter the desired new password in this field Confirm New Password Enter the new password a second time Access Level Displays the current access level ...

Страница 79: ...ring Yes Read only Read only Community strings and trap stations Yes Read only Read only Update firmware and configuration files Yes No No System utilities Yes Ping only Ping only Factory reset Yes No No Reboot switch Yes Yes No User accounts management Add update delete user accounts Yes No No View user accounts Yes No No After establishing a user account with Root level privileges press Esc Then...

Страница 80: ...d port in the following window The information on this window is described as follows Tx sec The rate at which the given port is transmitting packets in packets per second Rx sec The rate at which the given port is receiving packets in packets per second Utilization The percentage utilization of the available bandwidth of the given port Port Error Packets The Web Manager enables various packet sta...

Страница 81: ...agments The total number of frames received that were less that 64 octets in length excluding framing bits but including FCS octets and had either an FCS or an alignment error Jabber The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or an alignment error Drop Pkts The total number of events in which packets w...

Страница 82: ...e column on the right Frames sec The number of packets or frames transmitted or received per second by the switch Unicast RX Displays the number of unicast packets received by the switch in total number Frames and the rate Frames sec Multicast RX Displays the number of multicast packets received by the switch in total number Frames and the rate Frames sec Broadcast RX Displays the number of broadc...

Страница 83: ...Enables the forwarding table to be browsed by VLAN ID VID Search by MAC Address Enables the forwarding table to be browsed by MAC Address Search by Port Enables the forwarding table to be browsed by port number Jump Enables the user to move to a sector of the database corresponding to a user defined port VLAN or MAC address Find Click the icon to find the data entry Clear All Clears all forwarding...

Страница 84: ...following windows v GVRP v LACP Aggregator v IGMP Snooping v Switch History GVRP The read only GVRP Status window contains the following information LACP Aggregator The Link Aggregation Control Protocol aggregator displays the status of dynamic LACP trunked ports from the group point of view The information on this read only window is described as follows 66 IBM BladeCenter 4 Port Gb Ethernet Swit...

Страница 85: ...ping The switch IGMP snooping table can be browsed by using the Web manager The table is displayed by VLAN ID VID The information on this window is described as follows VID VLAN ID of the VLAN for which the IGMP Snooping table is to be displayed Search Click this button to display the IGMP Snooping Table for the current VID Multicast Group The IP address of a multicast group learned by IGMP snoopi...

Страница 86: ...ation File Upgrade Firmware Upload Configuration File and Save Log Using Browser Upgrade Firmware Configuration File and Download Configuration Log Files Save Changes Factory Reset and Restart System Using TFTP Server Trivial File Transfer Protocol TFTP services enable the switch firmware code to be upgraded by downloading a new firmware code file from a TFTP server to the switch A configuration f...

Страница 87: ...TP server Path and File Name The full file name including path of the new firmware code file on the TFTP server Upgrade Firmware A configuration file can be downloaded from a TFTP server to the switch This file is then used by the switch to configure itself Enter the IP address of the TFTP server in the Server IP Address field and the complete path and file name of the firmware code file for the s...

Страница 88: ...ch RAM select Save Changes to enter the address into the switch NVRAM Click Start to initiate the file transfer Note If you do not save configurations to NVRAM the configurations that you are uploading to a TFTP server will not be saved correctly The information on this window is described as follows Server IP Address The IP address of the TFTP server Path and File Name The full file name includin...

Страница 89: ...er The information on this window is described as follows Server IP Address The IP address of the TFTP server Path and File Name The full file name including path of the new firmware code file on the TFTP server Using the Browser This section contains information about the Upgrade Firmware Configuration File and Download Configuration Log Files windows Upgrade Firmware Configuration File The Upgra...

Страница 90: ...Configuration Log Files menu and press Enter The Download Configuration Log Files window contains the following information Saving changes The Save Changes window contains the following information To save all the changes that you made to the switch flash memory in the current session click the Save Configuration button When the switch configuration settings have been saved to NVRAM they become th...

Страница 91: ...the device to the initial parameters that were set at the factory Click Reset to Factory Default to reset the switch module Restarting the switch The Restart System window contains the following information To perform a restart of the switch which resets the system click the Restart button Chapter 5 Web Based network management 73 ...

Страница 92: ...74 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 93: ... management through Ethernet connections You can select the mode that is best suited for your BladeCenter environment The Ethernet switch module has an internal Ethernet path to the management module and the four external Ethernet ports on the switch module v The default mode uses the internal path to the management module only In this mode the remote access link to the management console must be ...

Страница 94: ...ction consult your system or network administrator Be sure to use the correct IP address in the required command as specified in First time connection to the Ethernet switch module Telnet usage conventions The Telnet interface uses the following conventions v Items in angle brackets can be toggled among several choices using the Spacebar v Items in square brackets can be changed by typing a new va...

Страница 95: ...t any time to force the program in the switch module to refresh the current window Note The initial user name in the Username field is USERID and the initial password in the Password field is PASSW0RD where the sixth alphanumeric character is the number zero Remember that both the Username and Password fields are case sensitive To increase system security change the password after you log onto the...

Страница 96: ...sting user accounts Before you can update a user account you must also enter the password for that user account If you are updating or deleting an existing user account see Updating a user account on page 82 or Deleting a user account on page 83 for complete details To create a new user account highlight Setup User Accounts in the main menu and press Enter The Setup User Accounts window opens as s...

Страница 97: ...s to the switch configuration for the current session only If you want your changes to be permanent select Save Changes in the main menu Selecting Save Changes enters the current switch configuration including all changes into NVRAM and then restarts the switch module Assigning Root User and User privileges There are three levels of user privileges Root User and User Some menu selections that are ...

Страница 98: ...hlight APPLY and press Enter When this is done the settings will be immediately applied to the switching software in RAM and will immediately take effect However some settings require you to restart the switch before they will take effect Restarting the switch erases all settings in RAM and reloads the stored settings from the NVRAM Thus it is necessary to save all setting changes to NVRAM before ...

Страница 99: ... NVRAM is to save a new configuration using Save Changes or to process a Load Factory Default Configuration function from the Reboot menu This will clear all settings and restore them to their initial values listed in Appendix B Run time switching software default settings on page 117 These are the configuration settings that were entered at the factory Highlight Reboot in the main menu and press ...

Страница 100: ... or privilege Viewing current user accounts Access to the switch is controlled through using an authorized user name and password The switch supports a maximum of eight user accounts The interface does not permit deletion of the currently logged in user to prevent accidentally deleting all the users with Root privileges Only a user with Root privileges can delete users To view the current user acc...

Страница 101: ...el is displayed Root User or User 5 Highlight APPLY and press Enter to make the change effective 6 You must enter the configuration changes into the NVRAM through the Save Changes choice on the main menu if you want the configuration to be used after a switch restart Deleting a user account Only a user with Root privileges can delete user accounts Before you can delete a user account you must also...

Страница 102: ...out see Logging out on page 98 Switch Information Highlight Switch Information on the main menu and press Enter The following window opens The Switch Information window shows the type of switch module and its MAC address assigned by the factory and unchangeable In addition the boot PROM and firmware version numbers are shown This information is helpful to keep track of PROM and firmware code updat...

Страница 103: ...tch IP Settings heading are those currently being used by the switch module The fields listed under the New Switch IP Settings heading are those that will be used after the switch module has been restarted Toggle the Get IP From field using the Spacebar to select from Manual BOOTP or DCHP This selects how the switch module will be assigned an IP address on the next restart or startup Note BOOTP an...

Страница 104: ... C network but custom subnet masks are permitted Note For switch communication with a remote management station such as the IBM Director server through the management module external Ethernet port the switch module internal network interface and the management module internal and external interfaces must be on the same subnet Default Gateway An IP address that determines where packets with a desti...

Страница 105: ...g The community string that will be included on SNMP packets sent to and from the switch Any station that is not a member of this community will not receive the packet Rights Enables each community to be separately set to either Read read only meaning that the community member can only view switch settings or R W read write which enables the member to change settings in the switch Status Determine...

Страница 106: ...itch are as follows Switch GVRP Disabled Group VLAN Registration Protocol is a protocol that enables members to dynamically join VLANs This option is used to enable or disable GVRP on the switch module MAC Address Aging Timer Enabled This field specifies whether the aging timer is on or off MAC Address Aging Time sec 300 The aging timer of MAC address entries can be set from 10 to 1000000 seconds ...

Страница 107: ...duplex mode The Auto setting enables these ports to automatically determine the fastest settings that the device to which the port is connected can handle and then to use those settings The other options are 100M Full 100M Half 10M Full and 10M Half There is no automatic adjustment of port settings with any option other than Auto Flow Control can be enabled or disabled in conjunction with all of t...

Страница 108: ...lso are available through the Internet Upgrade Firmware from TFTP Server To update the switch firmware code highlight Upgrade Firmware from TFTP Server and press Enter Enter the IP address of the TFTP server in the Server IP Address field Enter the path and the file name for the firmware code file on the TFTP server Highlight APPLY and press Enter to record the IP address of the TFTP server Select...

Страница 109: ...upload a configuration file to the TFTP server highlight Upload Configuration File to TFTP Server on the Switch Utilities menu and press Enter Enter the IP address of the TFTP server and the path and specify the path and file name of the switch configuration file on the TFTP server and press APPLY Highlight START and press Enter to initiate the file transfer Save Log to TFTP Server To save a histo...

Страница 110: ... will issue Ping Requests through the internal Ethernet link to the management module and optionally through the external Ethernet ports When Ping Requests are issued on both of these paths it is likely that one or more Pings will not reach the intended destination through one of these paths Through the management module path the Ethernet switch module can only Ping IP addresses that are on the sa...

Страница 111: ...ransmitted and received per second and calculates the percentage of the total available bandwidth being used on the port displayed under Util Highlight CLEAR COUNTER and press Enter to reset the counters Port Error Packets To view the error statistics for a port highlight Port Error Packets on the Network Monitoring menu and press Enter Chapter 6 Configuring the switch module through the Telnet in...

Страница 112: ... Table To set the MAC address aging time and view the MAC address forwarding table highlight Browse MAC Address Table on the Network Monitoring menu and press Enter The Browse By field can be toggled between ALL MAC Address Port and VLAN This sets a filter to determine which MAC addresses from the forwarding table are displayed ALL specifies no filter Note A very long aging time can result with th...

Страница 113: ...ld to VLAN A VLAN field will appear Enter the VID in the field and press Enter Highlight BROWSE and press Enter to initiate the browsing action GVRP To view the GVRP table highlight GVRP on the Network Monitoring menu and press Enter This read only window displays Group VLAN Registration Protocol GVRP information IGMP Snooping This enables the switch IGMP Snooping table to be viewed IGMP Snooping ...

Страница 114: ...n Key Displays the operational key used by the aggregator to communicate with other aggregators Member Port Displays the port member status in the aggregator group Status Displays the status of each aggregator When there is only one port member in the aggregator the aggregator acts as a normal individual port by default each LACP enabled port is assigned to its own aggregator group Otherwise it wi...

Страница 115: ...ion Reboot Saves the configuration to NVRAM identical to using Save Changes and then restarts the switch Reboot Load Factory Default Configuration Restarts the switch using the default factory configuration All configuration data will be lost This is identical to using Factory Reset and then Reboot Reboot Load Factory Default Configuration Except IP Address Restarts the switch using the default fa...

Страница 116: ...ut without saving your changes The current switch module session will close and the login window will open so that you can start a new switch module session see First time connection to the Ethernet switch module on page 76 for additional information v If you either saved your changes on the main menu or did not make any changes during the current switch module session the Logout window will not o...

Страница 117: ...fault settings as set at the factory unless it is absolutely necessary to change them The user changeable parameters in the switch are as follows Status Disabled Toggle to Enabled to implement the Spanning Tree Protocol on the switch Max Age 20 The maximum age can be set from 6 to 40 seconds At the end of the Max Age if a BPDU has still not been received from the root bridge your switch will start...

Страница 118: ... level the switch module enables the configuration of Spanning Tree Protocol on individual ports To define individual ports highlight STP Port Settings on the Configure Spanning Tree menu in Spanning Tree on page 99 and press Enter The following window opens Toggle the View Ports field to the range of ports to be configured Enter the port number or port range in the Configure Port from to field Wh...

Страница 119: ...rning state jumping directly to the forwarding state from the listening state STP State Enabled The Spanning Tree Protocol state for a selected port can either be Enabled or Disabled Forwarding Highlight Forwarding on the main menu to access the following MAC Address Forwarding window The Action field can be toggled between Add Modify and Delete using the Spacebar Enter the VLAN ID in the VID fiel...

Страница 120: ...the eight 802 1p priority classes 0 to 7 For the priority queue feature to take effect users must first enable the Output Priority Queue Method on the Class of Service menu Otherwise only the round robin method can be used to schedule the packets in four different priority queues When the Output Priority Queue Method is enabled the weight and latency specified in the preceding Class of Service Con...

Страница 121: ... and press Enter to access the following window To set up DiffServ Mapping toggle DiffServ Mapping to Enabled enter a beginning and ending Code Point 0 to 63 in the second field and select the desired Class in the next field Low Priority Med L Priority Med H Priority and High Priority When you are finished highlight APPLY and press Enter to make your change effective Mirroring The switch module en...

Страница 122: ...t port must be one of the four external ports Ext1 Ext2 Ext3 or Ext4 Finally toggle the Mirroring Status field to Enabled highlight APPLY and press Enter Notes 1 You should not mirror a faster port or higher traffic ports on to a slower port For example if you try to mirror the traffic from a 100 Mbps port onto a 10 Mbps port this can cause throughput problems The port from which you are copying f...

Страница 123: ...Variable default is 2 You can set the Query Interval between 1 and 65500 seconds default is 125 seconds This sets the time between IGMP queries The Max Response enables a setting between 1 and 25 seconds default is 10 and specifies the maximum amount of time available before sending a response report The Age Out timer is fixed at 260 seconds Highlight APPLY and press Enter to make the settings eff...

Страница 124: ...ngs To edit the IEEE 802 1q multicast settings highlight Setup IEEE 802 1q Multicast Settings on the Multicasting Menu to access the following window The Action field can be toggled between Add Modify and Delete using the Spacebar To add a new entry to the multicast forwarding table select Add Modify and enter the VLAN ID number of the VLAN that will be receiving the multicast packets in the VID f...

Страница 125: ... the DEFAULT_VLAN are removed during the configuration Packets cannot cross VLANs If a member of one VLAN wants to connect to another VLAN it must be through a router Note The switch default is to assign all ports to a single 802 1Q VLAN named DEFAULT_VLAN As new VLANs are created the member ports assigned to the new VLAN will be removed from the default VLAN port member list VLAN Menu The first i...

Страница 126: ... VLAN in the VLAN Name field 3 Highlight APPLY and press Enter to make your changes effective To set the 802 1Q VLAN membership status of a port go to the Membership E F line in the preceding window Each port 802 1Q VLAN membership can be set individually by highlighting the port entry using the arrow keys and then toggling among E F and using the Spacebar E Egress Member Specifies the port as bei...

Страница 127: ...nt VLAN tag aware then the port should be set to T Tagged Press APPLY to make the changes effective for the current session To enter the changes into NVRAM highlight Save Changes in the main menu and press Enter Configure 802 1Q Port Settings To configure an 802 1Q VLAN highlight Configure 802 1Q Port Settings on the VLAN Menu and press Enter To assign a port a Port VLAN Identifier PVID select the...

Страница 128: ...physically move to other switch ports and keep their same VLAN settings without having to reconfigure VLAN settings on the switch Link Aggregation The switch module supports Link Aggregation or port trunking Port trunks aggregated ports can be used to increase the bandwidth of a network connection or to ensure fault recovery You can configure up to two trunk connections combining two to four ports...

Страница 129: ...ort trunking group This port is called the Master Port of the group and all configuration options including the VLAN configuration that can be applied to the Master Port are applied to the entire port trunking group Load balancing is automatically applied to the ports in the trunked group and a link failure within the group causes the network traffic to be directed to the remaining links in the gr...

Страница 130: ...gle the Member Port field to M for each port that will be part of the trunking group and select TRUNK in the Method field to enable this feature After you click APPLY the new port trunking group will be displayed in the table in the lower portion of the preceding window The user changeable parameters on this window are as follows Group ID The switch module enables up to two port trunk groups to be...

Страница 131: ...ort trunking on individual ports select Link Aggregation Port Setting on the IEEE 802 3ad Link Aggregation menu Select the range of ports to be configured in the first field assign a Priority in the second field enter the Admin Key in the next field and select Enabled in the Mode field to enable this feature After you click APPLY the new port settings will be displayed in the table in the lower po...

Страница 132: ...inistrator Key Mode Enabled A port or ports can be enabled to permit them to join or create a link aggregation group Oper Key This displays the operational key used by the port to communicate with other LACP switches Status This displays the current status of a link aggregation port 114 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 133: ...ng pin assignments for the switch to network adapter connection and the normal cable for the switch to switch hub bridge connection Table 6 Standard Category 3 cable RJ 45 pin assignment RJ 45 Connector pin assignment Contact pin number Media direct interface signal 1 Tx transmit 2 Tx transmit 3 Rx receive 4 Not used 5 Not used 6 Rx receive 7 Not used 8 Not used The four external Ethernet ports of...

Страница 134: ...116 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 135: ... 255 0 0 0 Default gateway 0 0 0 0 BOOTP service Disable TFTP server IP address 0 0 0 0 Auto log out 10 min User name None Password None MAC address aging time 300 secs IGMP snooping Disable Switch GVRP Disable Telnet status Enable Web status Enable Device STP Disable Port STP Enable Port enable Enable Scheduling mechanism for COS queues Strict Trunk load sharing algorithm Src address Bridge max a...

Страница 136: ...118 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 137: ...m cable lengths Standard Data Transmission Rate Media type Maximum distance 1000BASE T 1000 Mbps Category 5e UTP cable Category 5 UTP cable 100 meters 328 1 ft 100BASE TX 100 Mbps Category 5 UTP cable 100 meters 328 1 ft 10BASE T 10 Mbps Category 3 UTP cable 100 meters 328 1 ft Copyright IBM Corp 2002 119 ...

Страница 138: ...120 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 139: ...numbers assign a higher priority and increase the probability of a switch being elected as the root bridge 32768 Hello time The length of time between broadcasts of the hello message by the switch 2 seconds Maximum age timer Measures the age of a received bridge protocol data unit BPDU for a port and ensures that the BPDU is discarded when its age exceeds the value of the maximum age timer 20 seco...

Страница 140: ...ath from the switch to the root switch v Ports included in the STP are selected Creating a stable topology If all switches have STP enabled with default settings the switch with the lowest MAC address in the network will become the root switch By increasing the priority lowering the priority number of the best switch STP can be forced to select the best switch as the root switch When STP is enable...

Страница 141: ...al information see Learning state on page 129 Forwarding The port is forwarding packets For additional information see Forwarding state on page 130 Disabled The port responds only to network management messages and must return to the blocking state first For additional information see Disabled state on page 132 A port changes from one state to another as follows v From initialization switch startu...

Страница 142: ... ports Port priority 128 Port cost 19 Bridge priority 32768 Setting user changeable STP parameters The factory default settings are compatible with the majority of installations However it is advisable to keep the default settings as set at the factory unless it is absolutely necessary to change them The user changeable parameters in the switch are as follows Priority You can set a priority for th...

Страница 143: ... forward packets Illustration of STP A simple illustration of three bridges or three switches connected in a loop is depicted in this section In this example you can anticipate some major network problems if the STP assistance is not applied If bridge A broadcasts a packet to bridge B bridge B will broadcast it to bridge C and bridge C will broadcast it to back to bridge A and so on The broadcast ...

Страница 144: ... In this example only the default STP values are used A B C Port 1 Port 1 Port 1 Port 1 Port 1 Port 1 Port 2 Port 2 Port 2 Port 2 Port 2 Port 2 Port 3 Port 3 Port 3 Port 3 Port 3 Port 3 LAN 1 LAN 1 LAN 2 LAN 2 LAN 3 LAN 3 Blocked Root Bridge Root Bridge Designated Bridge Designated Bridge Root Port Root Port Root Port Root Port Designated Port Designated Port Designated Port Designated Port The sw...

Страница 145: ... in the network is the best choice for the root switch If there is only one switch on the network no BPDU exchange occurs the forward delay timer expires and the ports move to the listening state All STP enabled ports enter the blocking state following the switch startup A port in the blocking state does the following v Discards packets received from the network segment to which it is attached v D...

Страница 146: ...h to receive BPDUs that might tell the switch that the port should not continue to change to the forwarding state but should return to the blocking state that is a different port is a better choice There is no address learning or packet forwarding from a port in the listening state A port in the listening state does the following v Discards frames received from the network segment to which it is a...

Страница 147: ...ng Learning state A port in the learning state prepares to participate in frame forwarding The port enters the learning state from the listening state A port in the learning state does the following v Discards frames received from the network segment to which it is attached v Discards packets sent from another port on the switch for forwarding v Adds addresses to its forwarding database v Receives...

Страница 148: ...tate when the forward delay timer expires When the spanning tree algorithm determines that a port should be changed to the forwarding state the following occurs The port is put into the listening state where it receives bridge protocol data units BPDUs and passes them to the switch CPU BPDU packets from the CPU are processed If no BPDUs are received this indicates that the port should go to the bl...

Страница 149: ... information into its address database v Receives BPDUs and directs them to the system CPU v Receives and responds to network management messages The following illustration shows the actions that occur when a port is in the forwarding state CPU Port 2 Port 2 Port 1 Port 1 Forwarding Database Forwarding Database BPDUs BPDUs Addresses Addresses Forwarding Data Packets Data Packets Network Management...

Страница 150: ...o the system CPU v Does not receive BPDUs for transmission from the system CPU v Receives and responds to network management messages The following illustration shows the actions that occur when a port is in the disabled state CPU Port 2 Port 2 Port 1 Port 1 Forwarding Database Forwarding Database BPDUs BPDUs Addresses Forwarding Data Packets Data Packets Network Management Packets Network Managem...

Страница 151: ...ertise its superiority over the other bridges on this LAN If bridge C fails to receive these BPDUs for longer than the Max Age default of 20 seconds it could start to change its port 2 from the blocking state to the forwarding state Note To remain in the blocking state a port must continue to receive BPDUs that advertise superior paths There are several circumstances in which the STA can fail most...

Страница 152: ...ets even if bridge A is using the link A will then detect collisions and begin to run the flow control algorithm If there is enough traffic between bridges B and A all packets including BPDUs will be dropped If the BPDUs sent from bridge A to bridge B are dropped for longer than the Max Age bridge B will lose its connection to the root bridge A and will unblock its connection to bridge C This will...

Страница 153: ...type of failure If a link is experiencing a high rate of physical errors a large number of consecutive BPDUs can be dropped and a port in the blocking state would change to the forwarding state The blocking port would have to have the BPDUs dropped for 50 seconds at the default settings and a single BPDU would reset the timer If the Max Age is set too low this time is reduced Resource errors The s...

Страница 154: ...ectivity will identify the link that is causing the problem if sufficient time is available Connectivity will be restored immediately after disabling a data loop Avoiding network problems To help your network operate more efficiently you can avoid or minimize network problems as described in this section v Know where the root is located Although the STP can elect a root bridge a well designed netw...

Страница 155: ...Appendix D Understanding and troubleshooting the Spanning Tree Protocol 137 ...

Страница 156: ...itch C is not only receiving traffic for VLAN 1 but switch C is also receiving unnecessary broadcast and multicast traffic for VLAN 2 Switch C is also blocking one port for VLAN 2 Thus there are three redundant paths between switches A and B and two blocked ports per VLAN This increases the chance of a data loop 138 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 157: ...N 2 VLAN 2 Trunk In this example the VLAN definitions are extended to switches A and B This gives only a single blocked port per VLAN and enables the removal of all redundant links by removing switch A or B from the network Appendix D Understanding and troubleshooting the Spanning Tree Protocol 139 ...

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Страница 159: ...s and IntelliStation systems operating systems and programs come with information that contains troubleshooting procedures and explanations of error messages and error codes If you suspect a software problem see the information for the operating system or program Using the documentation Information about your IBM xSeries or IntelliStation system and preinstalled software if any is available in the...

Страница 160: ...usage configuration and software problems with xSeries servers IntelliStation workstations and appliances For information about which products are supported by Support Line in your country or region go to http www ibm com services sl products For more information about Support Line and other IBM services go to http www ibm com services or go to http www ibm com planetwide for support telephone num...

Страница 161: ...or IBM Machines a glossary of terms used in the Statement of Limited Warranty Frequently Asked Questions FAQ and links to Product Support Web pages The IBM Statement of Limited Warranty is available from this Web site in 29 languages in Portable Document Format PDF Machine IBM BladeCenter 4 Port Gb Ethernet Switch Module Country or region Warranty period Service delivery method Worldwide 3 years O...

Страница 162: ... In those instances IBM will make Engineering Changes ECs available that apply to your hardware v Customer replaceable units CRUs Some parts of IBM xSeries and IntelliStation systems are designated as customer replaceable units IBM ships CRUs to you for replacement by you CRUs include keyboards monitors memory diskette drives hard disk drives and mice this list is not inclusive of all CRUs The fol...

Страница 163: ...f a particular machine type In addition some countries or regions might have fees and restrictions that apply at the time of service To determine whether your system is eligible for IWS go to http www ibm com pc support and click Warranty lookup Purchasing additional services During and after the warranty period you can purchase additional services such as support for IBM and non IBM hardware oper...

Страница 164: ...ne that is at least functionally equivalent you may return it to your place of purchase and your money will be refunded Extent of Warranty The warranty does not cover the repair or exchange of a Machine resulting from misuse accident modification unsuitable physical or operating environment improper maintenance by you or failure caused by a product for which IBM is not responsible The warranty is ...

Страница 165: ...s involve the removal of parts and their return to IBM A part that replaces a removed part will assume the warranty service status of the removed part Before IBM or your reseller exchanges a Machine or part you agree to remove all features parts options alterations and attachments not under warranty service You also agree to 1 ensure that the Machine is free of any legal obligations or restriction...

Страница 166: ...OT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU Governing Law Both you and IBM consent to the application of the laws of the country in which you acquired the Machine to govern interpret and enforce all of your and IBM s rights duties and obligations arising from or relating in any manner to the subject matter of...

Страница 167: ...r arbitrators designated in conformity with those rules shall have the power to rule on their own competence and on the validity of the Agreement to submit to arbitration The arbitration award shall be final and binding for the parties without appeal and the arbitral award shall be in writing and set forth the findings of fact and the conclusions of law All proceedings shall be conducted including...

Страница 168: ...LIC OF CHINA PRC Governing Law The following replaces this Section Both you and IBM consent to the application of the laws of the State of New York except when local law requires otherwise to govern interpret and enforce all your and IBM s rights duties and obligations arising from or relating in any manner to the subject matter of this Agreement without regard to conflict of law principles Any di...

Страница 169: ...ich the warranty service is being provided except that in 1 Albania Bosnia Herzegovina Bulgaria Croatia Hungary Former Yugoslav Republic of Macedonia Romania Slovakia Slovenia Armenia Azerbaijan Belarus Georgia Kazakhstan Kyrgyzstan Moldova Russia Tajikistan Turkmenistan Ukraine and Uzbekistan the laws of Austria apply 2 Estonia Latvia and Lithuania the laws of Finland apply 3 Algeria Benin Burkin...

Страница 170: ...unt you paid for the Machine that is the subject of the claim For purposes of this item the term Machine includes Machine Code and Licensed Internal Code Applicability of suppliers and resellers unchanged FRANCE Limitation of Liability The following replaces the second sentence of the first paragraph of this Section In such instances regardless of the basis on which you are entitled to claim damag...

Страница 171: ...WAZILAND Limitation of Liability The following is added to this Section IBM s entire liability to you for actual damages arising in all situations involving nonperformance by IBM in respect of the subject matter of this Statement of Warranty will be limited to the charge paid by you for the individual Machine that is the subject of your claim from IBM UNITED KINGDOM Limitation of Liability The fol...

Страница 172: ...154 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 173: ... IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This information could include technical inaccuracies or typographical errors Changes are periodically made to the inform...

Страница 174: ... ProShare are trademarks of Intel Corporation in the United States other countries or both Microsoft Windows and Windows NT are trademarks of Microsoft Corporation in the United States other countries or both UNIX is a registered trademark of The Open Group in the United States and other countries Java and all Java based trademarks and logos are trademarks or registered trademarks of Sun Microsyst...

Страница 175: ...ionality Electronic emission notices Federal Communications Commission FCC statement Note This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses ...

Страница 176: ...he protection requirements of EU Council Directive 89 336 EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from a nonrecommended modification of the product including the fitting of non IBM option cards This product has been tested and found to comply...

Страница 177: ...Japanese Voluntary Control Council for Interference VCCI statement Appendix G Notices 159 ...

Страница 178: ...160 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 179: ...the switch module 76 77 D data loop 136 data transmission rates 5 default remote management mode 31 75 default settings Factory Reset window 73 Reboot menu 81 runtime switching software 117 default spanning tree configuration 124 deleting user accounts 83 disabled state 132 Display Ports window 38 distribution method 53 Distribution Method window 53 Download Configuration File from TFTP Server win...

Страница 180: ...4 Management Information Base MIB 21 Management Station IP Settings window 58 managing the switch module remotely 31 75 maximum cable lengths 119 media access control MAC address 4 19 20 Multicasting menu 104 N negotiation 133 network management Web based 32 network monitoring 62 Network Monitoring menu 92 network operation 136 new root 21 normal user privileges 61 79 notes important 156 notices e...

Страница 181: ... 122 standard Category 3 cable 115 standards 6 static electricity 9 static sensitive devices handling 9 statistics 62 STP See Spanning Tree Protocol STP STP failure 133 STP illustration after applying STA rules 126 before applying STA rules 125 STP parameters 121 124 STP port parameters 121 STP Port Settings menu 100 STP Port Settings window 49 STP port states 122 switch bay numbers 19 Switch Hist...

Страница 182: ...W warm start 21 Web site compatible options 8 IBM products 1 Web based network management 31 32 World Wide Web 1 164 IBM BladeCenter 4 Port Gb Ethernet Switch Module Installation and User s Guide ...

Страница 183: ......

Страница 184: ... Part Number 59P6530 Printed in U S A 1P P N 59P6530 ...

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