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Modular Ethernet Switch User’s Guide

Using the Console Interface

♦

State

Enables or disables the port. This amounts to turning the port on or off.

♦

Speed/Duplex

Selects the desired Speed and Duplex settings for the port. Possibilities include:

Auto

100M/Full

100M/Half

10M/Full

, or

10M/Half

. Choosing

Auto

enables NWay auto-configuration on

the port. If the port is a Gigabit Ethernet port,

1000M/Full

will be displayed in this field. Gigabit ports

also support auto-negotiation.

♦

Flow Ctrl

Toggles flow control

Off

. Flow control is useful during periods of heavy network

activity when the Switch’s buffers can receive too much traffic and fill up faster than the Switch can

forward the information. In such cases, the Switch will intervene and tell the transmitting device to

pause to allow the information in the port buffer to be sent.

♦

Priority

Selects

Normal

High

Low

. The Switch has two packet queues where incoming packets

wait to be processed for forwarding; a high priority and low priority queue. The high priority queue

should only be used for data in which latency can have adverse affects on the function of an application,

such as video or audio data, where latency can produce distorted sounds and images. Packets in the low

priority queue will not be processed unless the High priority queue is empty. Setting the port priority to

High

will deliver all packets arriving at the port to the high priority queue, a

Low

setting will send

them all to the low priority queue. The

Normal

setting causes the port to examine the packet for an

IEEE 802.1p/Q priority tag. If no tag exists, the packet will be sent to the low priority queue. If the

priority tag field in the packet header contains a value of 0-3, the packet will be placed in the low

priority queue; a value of 4-7 causes the packet to be placed in the high priority queue.

♦

Port Lock

When

Enabled

, automatic learning for all stations connected to this port will stop and

entries in the Forwarding Table for all devices residing on this port will age out. The only traffic this

port will allow is traffic from machines whose MAC address is manually entered in the Static

Forwarding Table.

♦

Broadcast Storm

Rising Action

This setting will be activated when a Broadcast Storm Rising

Threshold is met. When triggered, the port can be configured to

Do Nothing

Blocking

Block & Trap

The

Do Nothing

setting causes the switch to operate normally, in other words, ignore the broadcast

storm condition. The

Blocking

setting causes the port to drop all broadcast frames, thus isolating the

broadcast storm.

Block & Trap

performs the same action as

Blocking

, except it also sends a trap to the

designated Trap Recipient informing them of the situation. For more information on broadcast storms,

please refer to the previous chapter.

♦

Broadcast Storm

Rising Threshold

This setting defines a ceiling for the number of broadcast

packets per second on this port. Once met, the

Broadcast Storm Rising Action

(above) will be triggered.

The assigned number should be high enough to allow normal broadcast packets (which comprise

significant traffic) to be let through, while being low enough so that broadcast storms can be detected

early.

♦

Broadcast Storm

Falling Action

This setting will be activated when the Broadcast Storm Rising

Threshold

and then the Broadcast Storm Falling Threshold

are

each

met. This setting can be

configured to

Do Nothing

Forwarding

Forward & Trap

. The

Do Nothing

setting causes the switch to

operate normally, that is, to ignore the situation. If the port had met the

Broadcast Storm Rising Action

criteria and started

Blocking

broadcast packets, it will continue doing so. The

Forwarding

setting

causes the port to begin forwarding broadcast frames, thus removing the

Blocking

state imposed by the

Broadcast Storm Rising Action

Forward & Trap

performs the same action as

Forwarding

, except it

also sends a trap to the designated Trap Recipient informing them of the situation.

♦

Broadcast Storm Falling Threshold

This setting defines the number of broadcast packets per

second on this port which will trigger the

Broadcast Storm Falling Action

(above). This threshold will

only trigger an action if the

Broadcast Storm Rising Threshold

has first been reached. The assigned

number should be high enough to allow normal broadcast packets (which comprise significant traffic) to

be let through as early as possible, while being low enough so that broadcast storms are completely

eliminated.

Содержание DES-6000 Series

Страница 1: ...DES 6000 Modular Ethernet Switch User s Guide Second Edition April 2001 6DES6000 02 Printed In Taiwan RECYCLABLE ...

Страница 2: ...OP OR SHELF INSTALLATION 7 RACK INSTALLATION 7 INSTALLING MODULES 8 CONNECTING A TERMINAL 9 POWER ON 9 Power Failure 10 IDENTIFYING EXTERNAL COMPONENTS 11 FRONT PANEL 11 SIDE PANELS 11 OPTIONAL PLUG IN MODULES 12 10BASE T 100BASE TX Module 12 100BASE FX MT RJ Module 12 1000BASE T RJ 45 Module 13 1000BASE SX MT RJ Gigabit Module 13 1000BASE SX SC Gigabit Module 14 1000BASE LX SC Gigabit Module 14 P...

Страница 3: ...H USING TELNET 33 CONSOLE USAGE CONVENTIONS 33 FIRST TIME CONNECTING TO THE SWITCH 33 User Accounts Management 34 Save Changes 35 LOGIN ON THE SWITCH CONSOLE BY REGISTERED USERS 36 Create Modify User Accounts 36 User Accounts Control Table 37 SETTING UP THE SWITCH 38 System Configuration 38 Configure IP Address 39 Configure Console 40 Configure Switch Modules 40 Configure Ports 42 Configure Trunk ...

Страница 4: ... Console 106 Monitoring 107 Switch Overview 108 Port Utilization 109 Port Traffic Statistics 109 Port Error Packet Statistics 110 Port Packet Analysis 111 Browse Address Table 113 IP Multicast IGMP Information 113 Browse GVRP Status 114 Browse GMRP Status 114 Switch History 114 Device Status 115 Maintenance 115 Firmware and Configuration Update 116 Save Settings to TFTP Server 117 Save Switch Hist...

Страница 5: ...ation of the Switch Chapter 3 Identifying External Components Describes the front panel side panels optional plug in modules and LED indicators of the Switch Chapter 4 Connecting the Switch Tells how you can connect the Switch to your Ethernet network as well as providing an informational cable length table Chapter 5 Switch Management Concepts Talks about Local Console Management via the RS 232 DC...

Страница 6: ...rease in theoretical throughput over 100Mbps Fast Ethernet and a one hundred fold increase over 10Mbps Ethernet Since it is compatible with all 10Mbps and 100Mbps Ethernet environments Gigabit Ethernet provides a straightforward upgrade without wasting a company s existing investment in hardware software and trained personnel The increased speed and extra bandwidth offered by Gigabit Ethernet is e...

Страница 7: ...way of eliminating problems of chaining hubs beyond the two repeater limit A switch can be used to split parts of the network into different collision domains for example making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 100BASE TX networks Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridgin...

Страница 8: ... switch 96 Static VLAN Entries in IEEE 802 1Q VLANs mode Supports 802 1p priority queuing 2 priority queues Port Aggregation Port Trunking Capability Port Mirroring IGMP snooping Head Of Line HOL Blocking Prevention RS 232 port for out of band management and system configuration Telnet Remote Configuration TFTP software upgrades settings file and switch log uploads Web based management SNMP Agents...

Страница 9: ...ant with IEEE 802 1Q P Back pressure Flow Control support for Half duplex mode IEEE 802 3x compliant Flow Control support for Full duplex 1000BASE SX SC Module 2 1000BASE SX SC Gigabit Ethernet ports Fully compliant with IEEE 802 3z Support Full duplex operation only IEEE 802 3x compliant Flow Control support Per port packet buffer 2 Mbytes 1000BASE LX SC Module 2 1000BASE LX SC Gigabit Ethernet p...

Страница 10: ...Modular Ethernet Switch User s Guide Introduction 5 Input 90 264 VAC 47 63Hz Output 3 3V 4A 60A 12V 0 1A 2A ...

Страница 11: ...hesive backing One AC power cord One console cable One printed copy of the quickstart guide One printed copy of this user s guide One CD ROM containing this user s guide If any item is found missing or damaged please contact your local reseller for replacement Setup The setup of the Switch can be performed using the following steps The surface must support at least 5 kg The power outlet should be ...

Страница 12: ...e between the device and the objects around it Figure 2 1 Switch installed on a Desktop or Shelf Rack Installation The Switch can be mounted in an EIA standard size 19 inch rack which can be placed in a wiring closet with other equipment To install attach the mounting brackets on the Switch s front panel one on each side and secure them with the screws provided Figure 2 2 Attaching the mounting br...

Страница 13: ...dule while the power is on may cause irreparable damage to the module and or to the Switch itself Further make sure you have unplugged the power cord from the removable power supply module before inserting or removing it from the Switch CAUTION Due to the high energy present in this system extreme caution should be exercised whenever adding or removing system components No element of this system m...

Страница 14: ...p Bits 1 Flow Control None The RS 232 port has a nine socket D shell connector with IBM type DCE wiring and can be connected to the terminal using an off the shelf RS 232 cable with the proper connectors for the terminal and the DES 6000 Power on Power up the DES 6000 as follows 1 Make sure the power module is properly installed in the device 2 Plug the device end of the supplied power cord firmly...

Страница 15: ...or about 20 seconds while the switch prepares its run time software and performs a self test The Power indicator begins shining steadily and the remaining indicators begin reflecting port and system status Power Failure As a precaution the Switch should be unplugged in case of an impending power failure When power is resumed plug the Switch back in ...

Страница 16: ...indicators follows see LED Indicators An RS 232 DCE console port is used to diagnose the Switch via a connection to a terminal or PC and Local Console Management Nine slide in module slots installing networking modules and the CPU module Two slide in module slots for installing power supply modules Side Panels The left side panel of the Switch contains four system fans The right side panel contain...

Страница 17: ...ce 10BASE T 100BASE TX Module Figure 3 2 16 port 10 100BASE TX module 16 port front panel module Connects to 10BASE T and 100BASE TX devices at full or half duplex Supports Category 3 4 5 or better UTP or STP connections of up to 100 meters each 100BASE FX MT RJ Module Figure 3 3 12 port 100BASE FX MT RJ module 12 port front panel module Connects to 100BASE FX devices at full or half duplex 12 100...

Страница 18: ... 1000BASE T RJ 45 Module Figure 3 4 2 port 1000BASE T RJ 45 module 2 port front panel module Store and forward packet switching Connects to 1000BASE T devices only at full duplex and auto negotiating 2 1000BASE T RJ 45 Gigabit Ethernet ports Fully compliant with IEEE 802 3ab Fully compliant with IEEE 802 1Q P Back pressure Flow Control support for Half duplex mode IEEE 802 3x compliant Flow Contro...

Страница 19: ...Connects to 1000BASE SX devices at full duplex 2 1000BASE SX SC Gigabit Ethernet ports Fully compliant with IEEE 802 3z Support Full duplex operation only IEEE 802 3x compliant Flow Control support Per port packet buffer 2 Mbytes 1000BASE LX SC Gigabit Module Figure 3 7 Two port 1000BASE LX gigabit module Two port front panel module Connects to 1000BASE LX devices at full duplex 2 1000BASE LX SC G...

Страница 20: ...splays the current status of the switch The LED will blink while the Power On Self Test POST is running during startup It will light a steady green after the POST test to indicate the switch is powered on and operating properly It will light amber when an error occurs during startup and the switch is therefore not functioning Console This indicator is lit green when the switch is being managed thr...

Страница 21: ...The following LED indicator states are possible for an end node to switch connection 1 The 100M indicator comes ON for a 100 Mbps and stays OFF for 10 Mbps 2 The Link Act indicator lights up upon hooking up a PC that is powered on Switch to Hub or Switch These connections can be accomplished in a number of ways For twisted pair copper connections the most important consideration is that when using...

Страница 22: ...y the following 100M speed indicator is OFF Link Act indicator is ON 100BASE TX Device For a 100BASE TX device the Switch s LED indicators should display the following 100M speed indicator is ON Link Act indicator is ON 1000BASE T Device For a 1000BASE T device the Switch s LED indicators should display the following Link Act indicator is ON ...

Страница 23: ...iber 400 500 Meters 50 125µm Multimode Fiber 500 550 Meters 62 5 125µm Multimode Fiber 500 550 Meters 10µ Single mode Fiber 5000 Meters 1000BASE T Category 5e UTP Cable 1000Mbps 100 Meters 100BASE FX 50 125µm Multimode Fiber half duplex operation 400 Meters 50 125µm Multimode Fiber full duplex operation 2000 Meters 62 5 125µm Multimode Fiber half duplex operation 400 Meters 52 5 125µm Multimode Fi...

Страница 24: ... Switch allow it to be an active part of a manageable network These components include a CPU memory for data storage other related hardware and SNMP agent firmware Activities on the Switch can be monitored with these components while the Switch can be manipulated to carry out specific tasks Diagnostic Console Port RS 232 DCE Out of band management requires connecting a terminal such as a VT 100 or...

Страница 25: ...eceive traps from the Switch by setting a list of IP Addresses of the authorized network managers Trap managers are special users of the network who are given certain rights and access in overseeing the maintenance of the network Trap managers will receive traps sent from the Switch they must immediately take certain actions to avoid future failure or breakdown of the network The following are tra...

Страница 26: ...ever one of the two fans on a redundant power supply module fails Power Fan2 Failure This trap is sent whenever one of the two fans on a redundant power supply module fails MIBs Management information and counters are stored in the Switch in the Management Information Base MIB The Switch uses the standard MIB II Management Information Base module Consequently values for MIB objects can be retrieve...

Страница 27: ...s packets off the network for intrusion control MAC Address filtering For port filtering each port on the switch is a unique collision domain and the switch filters discards packets whose destination lies on the same port as where it originated This keeps local packets from disrupting communications on other parts of the network For intrusion control whenever a switch encounters a packet originati...

Страница 28: ...ults in a higher priority for the switch and thus increases it probably of being selected as the Root Bridge Designated Bridge From each LAN segment the attached Bridge that has the lowest Root Path Cost to the Root Bridge is the Designated Bridge It forwards data packets for that LAN segment In cases where all Switches have the same Root Path Cost the switch with the lowest Bridge Identifier beco...

Страница 29: ... time any port on the Switch spends in the listening state while moving from the blocking state to the forwarding state Observe the following formulas when you set the above parameters 1 Max Age 2 x Forward Delay 1 second 2 Max Age 2 x Hello Time 1 second Port Priority A Port Priority can be from 0 to 255 The lower the number the greater the probability the port will be chosen as the Root Port Ill...

Страница 30: ... sec No effect if not Root Bridge Never set greater than Max Age Time Max Age Time 6 40 sec Compete for Root Bridge if BPDU is not received Avoid low number for unnecessary reset of Root Bridge Forward Delay 4 30 sec High delays the change in state Max Age 2 x Forward Delay 1 Max Age 2 x Hello Time 1 Port Level STA parameters Enable Disable Enable Disable Enable or disable this LAN segment Disable...

Страница 31: ...d MAC based broadcast domains Only one of the three types can be active on the switch at any given time however Thus you will need to choose the type of VLAN or broadcast domain you wish to setup on your network and configure the switch accordingly MAC based broadcast domains and port based VLANs are limited to the switch and devices directly connected to it while 802 1Q VLANs support IEEE 802 1Q ...

Страница 32: ...ders NICs send and receive normal Ethernet packets If the packet s destination lies on the same segment communications take place using normal Ethernet protocols Even though this is always the case when the destination for a packet lies on another Switch port VLAN considerations come into play to decide if the packet gets dropped by the Switch or delivered There are two key components to understan...

Страница 33: ...attached to Port 9 is shared by VLAN 1 and VLAN 2 because Port 9 is a member of both VLANs it is listed as a member of VID 1 and 2 Since it can receive packets from both VLANs all ports can successfully send packets to it Ports 1 and 4 send these packets on VLAN 1 their PVID 1 and Ports 13 and 16 send these packets on VLAN 2 PVID 2 The third VLAN PVID 3 is used by the server to transmit files that...

Страница 34: ...t a member of a VLAN the packet will be dropped if the port is a member of a VLAN then the packet will be forwarded Otherwise if the Ingress Filter is disabled then the switch will process any packet received at this port in its normal fashion Egress port A port on a switch where packets are flowing out of the switch either to another switch or to an end station and tagging decisions must be made ...

Страница 35: ...d to a non 802 1Q compliant device and was thus receiving untagged packets it would tag its own PVID onto the packet and use this information to make forwarding decisions As a result the packets coming from the non compliant device would automatically be placed on the ingress ports VLAN and could only communicate with other ports that are members of this VLAN Port based VLANs In port based VLANs b...

Страница 36: ...now able to limit broadcast domains better and cheaper than routers Also many switches including the DES 6000 series have broadcast sensors and filters built into each port to further control broadcast storms Segmenting Broadcast Domains VLANs can be used to segment broadcast domains They do this by forwarding packets only to ports in the same VLAN Thus broadcast packets will only be forwarded to ...

Страница 37: ...nications software set to emulate a VT100 The console must be connected to the Diagnostics port This is an RS 232 port with a 9 socket D shell connector and DCE type wiring Make the connection as follows 1 Obtain suitable cabling for the connection You can use either a a null modem RS 232 cable or b an ordinary RS 232 cable and a null modem adapter One end of the cable or cable adapter combination...

Страница 38: ...e backspace key can be used to move between selected items It is recommended that you use the tab key and backspace key for moving around the console 4 Items in UPPERCASE are commands Moving the selection to a command and pressing Enter will execute that command e g SAVE or EXIT Please note that the command APPLY only applies for the current session Use Save Changes from the main menu for permanen...

Страница 39: ... the Switch which allow access to the switch management features From the screen above move the cursor to the User Accounts Management menu and press Enter then the Users Accounts Management menu appears 1 Choose Create Modify User Accounts from the User Accounts Management menu and the Add Modify User Accounts menu appears 2 Enter the new user name assign an initial password and then confirm the ...

Страница 40: ...ystem Utilities Read Write Yes Ping Test read only for rest Factory Reset Read Write No Restart System Read Write No Table 6 1 Administrator and Normal User Privileges After establishing a User Account with Administrator level privileges press Esc twice Then choose the Save Changes menu see below Pressing any key will return to the main menu You are now ready to operate the Switch Save Changes The...

Страница 41: ...em to their initial values listed in the Appendix which were present when the Switch was purchased Login On The Switch Console By Registered Users To log in once you have created a registered user 1 Type in your username and press Enter 2 Type in your password and press Enter 3 The main menu screen will be displayed based on your Administrator or Normal User access level or privilege Create Modify...

Страница 42: ...yped it 6 Determine whether the new user should have Normal User or Administrator privileges 7 Choose the APPLY command to let the password change take effect This method can also be used by an Administrator level user to change another user s password User Accounts Control Table Access to the console whether using the console port or via Telnet is controlled using a user name and password Up to t...

Страница 43: ...s level field for the user and press the space bar to toggle To delete a user account toggle the Delete field of the user you wish to remove to Yes Press APPLY to let the changes take effect Setting Up The Switch This section will help prepare the Switch user by describing the System Configuration Update Firmware and Configuration Files Save Changes and System Utilities menus and their respective ...

Страница 44: ...Get IP from Determines whether the Switch should get it s IP Address settings from the user Manual a BootP server or a DHCP server Manual When manual is chosen the switch will use the IP Address Subnet Mask and Default Gateway settings defined in this screen upon being rebooted BootP Sends out a BOOTP broadcast request when it is powered up The BOOTP protocol allows IP addresses network masks and ...

Страница 45: ...y log off Serial Port Determines whether the RS 232 serial port should be used for out of band SLIP management or for console management starting from the next time the Switch is restarted In this field you can toggle between SLIP or Console Baud Rate Determines the serial port bit rate that will be used the next time the Switch is restarted Applies only when the serial port is being used in SLIP ...

Страница 46: ...o the SNMP MIB II variable sysContact and is used to give the name and contact information for the person responsible for administering the Switch Switch Module Information This screen allows you to view information for each module in your switch including the Module Type and Hardware Version Press Switch Module Information on the Switch Module Configuration screen to access the Switch Module Info...

Страница 47: ...nstance needs to be forwarded to Ports 2 and 3 If Port 2 is occupied causing the packet to be held in memory until the port is free the packet destined for Port 3 will also be delayed even though Port 3 may be free Cumulatively these delays can have a noticeable effect on overall network performance Enabling HOL Blocking Prevention prevents Head of Line blocking from occurring meaning that the pac...

Страница 48: ...red in the Static Forwarding Table Broadcast Storm Rising Action This setting will be activated when a Broadcast Storm Rising Threshold is met When triggered the port can be configured to Do Nothing Blocking or Block Trap The Do Nothing setting causes the switch to operate normally in other words ignore the broadcast storm condition The Blocking setting causes the port to drop all broadcast frames...

Страница 49: ...alled a trunk This is discussed in detail in the Port Trunking section of the Switch Management Concepts chapter of this manual The switch supports 2 trunk groups per module except for the Gigabit Ethernet modules these modules support multiple trunk groups consisting of ports from each module Gigabit Trunk Groups must consist of ports that are all the same media type for example SX LX or T To set...

Страница 50: ...embers field represent the 8 ports that can be members of the group the first dash represents Port 1 etc Position the cursor over the dashes representing ports you wish to be members and hit the space bar This changes the dash to a V and designates the port as a member of the trunk group State Enables or disables this trunk group Be careful when disabling trunk groups as the connections will retur...

Страница 51: ...upport an equal or higher speed than the source port Also the destination port for the mirroring cannot be a member of a trunk group Configure Spanning Tree Protocol The Spanning Tree Algorithm Parameters can be used for creating alternative paths in your network The Protocol Parameters allow you to change the behind the scene parameters of the Spanning Tree Algorithm at the bridge level The param...

Страница 52: ...nt of a network loop data packets will pass through the root port Max Age Sec Read only object indicates the maximum age of STP information learned from the network on any port before it is discarded Forward Delay Sec Read only object indicates how fast any port on the bridge can change its spanning state when moving towards the forwarding state The value determines how long the port stays in each...

Страница 53: ...e of a multi bridged network The root bridge is responsible for processing data packets when network loops occur The smaller the number set the higher the bridge priority is The higher the bridge priority the more chance the bridge has of becoming the root bridge Zero is the highest priority STP Port Settings To change the parameters on individual ports Choose Configure Spanning Tree Protocol from...

Страница 54: ...n allows you to stop or start dynamic address learning by locking the address table change the way the Switch looks up and stores MAC address table entries and select an age out time for dynamically learned MAC addresses in the forwarding table This screen also permits you to access three additional configuration screens from the menu at the bottom of the window Choose Configure Filtering and Forw...

Страница 55: ...inactivity or during times of network congestion The following fields at the top of the screen can be set Action Choose Add or Remove for each entry from the table MAC Address Enter a MAC address in this field at the top of the screen This is the MAC address of the device that you are creating a permanent forwarding address for A total of ten destination addresses per page will be seen at the bott...

Страница 56: ...nd Forwarding table screen The following screen appears Figure 6 24 Static Filtering Table screen To make a change to the Static Filtering Table choose Add or Remove in the Action field Then enter the MAC Address and VID if Port based or 802 1Q VLANs are enabled and then press APPLY Configure Static Multicast Filtering Multicast filtering allows you to block or forward traffic over each port for o...

Страница 57: ...define whether the Switch can intelligently forward IGMP packets and you must also define which 802 1Q VLANs if present can send and receive IGMP and Multicast packets To access the IGMP Configuration screen select Configure Filtering and Forwarding Table from the System Configuration menu Then select Configure IGMP from the bottom of the Configure Filtering and Forwarding table screen The followi...

Страница 58: ...ent to interface between IGMP and VLAN The agents are assigned to a VLAN and allow IGMP query and report packets to be present on the given VLAN Only 24 agents can exist on the switch at any one time Items in the above window are described below Action Adds Removes an entry agent from the table VID The VLAN number that you wish to create an agent for Apply Adds the agent to the table Go back to th...

Страница 59: ...as an agent attached to it which enables IGMP packets to be sent and received Age out Time If no IGMP query packet has arrived at the Switch before this timer has expired the Switch will become the IGMP host for this VLAN IGMP Status Activates deactivates the agent on this VLAN Port based IGMP Figure 6 30 Port based IGMP Configuration screen This allows you to enable disable IGMP agents for each V...

Страница 60: ...n screen The information on the top of the screen is described as follows Current VLAN Mode Displays which type of VLAN or broadcast domain is currently enabled on the Switch Restart VLAN Mode Choose from four settings for this mode Disabled MAC based broadcast domain Port based or 802 1Q After being restarted the Switch will implement the type of VLAN or broadcast domain chosen here Configure 802...

Страница 61: ...e 6 33 Add Remove a MAC based Broadcast Domain screen The fields you can set are Action Select the desired action by toggling between Add and Remove Domain Name Enter a name or number for the MAC based broadcast domain Press APPLY to create remove the designated MAC based Broadcast Domain Broadcast Domains and Number of Members reflect the current conditions They are read only fields and cannot be...

Страница 62: ...in member being added or removed Please note that the Status field for the MAC address you have entered may read Inactive Once the Switch is restarted in MAC based broadcast domain mode the MAC addresses will be applied meaning that the broadcast domains and their entries are active Current Broadcast Domains Number of Members MAC Address in the lower part of the screen and Status reflect the curre...

Страница 63: ...o the connected segment on many VLANs Active VLAN designations are defined by assigning Port VLAN ID numbers PVIDs in the Configure Default Port VLAN ID screen All ports participating in VLANs must have a PVID 3 Define the VLAN itself and assign the ports that will be passive members able to receive packets with this VID tag or from a port that has this PVID number At this point you need to design...

Страница 64: ...s shown in the above table will be read only and the values will be the same as those for the anchor port Choose Configure Port VLAN ID PVID to access the second item on the 802 1Q VLAN Configuration menu The following screen appears Figure 6 38 Port VLAN PVID Assignment screen This screen allows you to set a Port VLAN ID number PVID for each port VLAN 1 is the default VLAN All ports are assigned ...

Страница 65: ...at will be defined on this screen VID 1 is the default VLAN All ports are designated members of VID 1 when VLANs are enabled VLAN Name Description of the VLAN Tag Untag Toggle between T for Tagging Port and U for Untagging Port for each member port Egress Forbidden Non Member Position the cursor over the dash representing the appropriate port number and press space bar to select E for Egress F for...

Страница 66: ... VLAN Configuration screen when the switch is in 802 1Q VLAN mode to access the following screen Figure 6 42 GMRP Configuration screen This screen allows you to Enable or Disable Group Multicast Registration Protocol GMRP globally for entire switch When GMRP is Enabled a user attached to the switch can dynamically join a multicast group When GMRP is Disabled then no dynamic multicast group registr...

Страница 67: ...lticast Forwarding Table Configuration screen The fields you can set are VID Enter a VLAN ID from 1 to 4094 This is the VLAN that will be defined on this screen VID 1 is the default VLAN All ports are designated members of VID 1 when VLANs are enabled MAC Address This is the MAC address of a user that will statically receive multicast packets Egress Forbidden Non Member Position the cursor over th...

Страница 68: ...e Browse Static Multicast Forwarding Table from the of the Static Multicast Forwarding Table Configuration screen when the switch is in 802 1Q VLAN mode to access the following screen Figure 6 45 Browse Static Multicast Forwarding Table screen This screen displays the current Static Multicast Forwarding Table entries It is a read only table Configure Port based VLANs Choose Configure Port based VL...

Страница 69: ...removed from VLAN 1 If it is ever removed from the other VLAN it will automatically return to being a member of VLAN 1 Thus all unassigned ports are automatically members of VLAN 1 VLAN Name Description of the VLAN Port Assignments Position the cursor over the dash representing the appropriate port number and press space bar to select V for member Pressing space bar again returns the V back into a...

Страница 70: ...the console port TFTP Server IP Address The IP address of the TFTP server where the runtime switching software or configuration file is located This entry is used only if the Firmware Update is set to Enabled and the Software Update Mode is set to Network Firmware Update Determines whether or not the Switch will try to look for a runtime image file on the TFTP server File Name The complete path an...

Страница 71: ...ownloading new firmware 3 Downloading new firmware may result in the loss of some or all Switch settings We therefore strongly recommend performing a factory reset and then restarting the Switch after a successful firmware download 4 Since new management options may be available in the updated version of the firmware you may be unable to successfully load settings from an old settings file System ...

Страница 72: ...tch will continue Pinging indefinitely In the lower part of the Ping Test screen you can view the Results of the Ping test Save Settings to TFTP Server Choose Save Settings to TFTP Server from the Utilities menu under System Utilities on the main menu to access the following screen Figure 6 52 Save Settings to TFTP Server screen Press START to begin the upload The result will be displayed in the l...

Страница 73: ...ities menu under System Utilities on the main menu to clear entire MAC Address Table Management WEB Allows Web Based Network Management function to be enabled or disabled Community Strings and Trap Stations The Switch sends out SNMP traps to network management stations whenever certain exceptional events occur such as when the Switch is turned on or when a system reset occurs The Switch allows tra...

Страница 74: ... community to be separately set to either Read Only meaning that the community member can only view switch settings or Read Write which allows the member to change settings in the switch Status Trap Status Determines whether this community name entry is Valid or Invalid An entry can be disabled by changing its status to Invalid IP Address The IP address of the network management station to receive...

Страница 75: ...ess four different tables that observe the condition of each individual port Traffic Statistics To display the Traffic Statistics menu choose the first item on the Network Monitoring menu The following menu appears Figure 6 56 Traffic Statistics menu Port Utilization To access the first item on the Traffic Statistics menu choose Port Utilization The following table appears ...

Страница 76: ...nd dropped packets Util This shows the percentage of available bandwidth each port is using during a single second at the time specified by the update interval The utilization percentage is the total number of bits transmitted and received on the port per second divided by the bandwidth per second Please note that bandwidth values are doubled for full duplex connections i e 100BASE TX at full dupl...

Страница 77: ...lso includes local and dropped packets Frames Sent The number of good frames sent from the respective port Total Bytes Recv The number of bytes received good and bad Total Frames Recv The number of frames received good and bad Last Seen MAC The MAC address of the last device that sent packets over this port Port Packet Error Statistics To access the third item on the Traffic Statistics menu choose...

Страница 78: ...cket Analysis Statistics To access the fourth item on the Traffic Statistics menu choose Port Packet Analysis Statistics The following table appears Figure 6 60 Port Packet Analysis table Select the desired module in the Module field the desired port in the Port field and the desired increment setting in the Update Interval field 5 sec 15 sec 30 sec 1 min or Suspend The statistic counters displaye...

Страница 79: ...Sequence which allows you to browse MAC addresses by numerical sequence MAC which searches for the MAC address specified in the MAC Address field this is only displayed when MAC has been selected in the Search By field and Port which allows you to specify a Module and Port these two fields only appear when Port has been selected in the Search By field The message area at the bottom of the screen w...

Страница 80: ...s are listed chronologically from the last time the Switch was rebooted Device Status Selecting Device Status will display power supply and fan status From this screen you can activate or deactivate the buzzer Figure 6 63 Device Status screen Browse GVRP Status Selecting Browse GVRP Status allows you to view the following table ...

Страница 81: ...ew Multicast groups and settings and Internet Group Management Protocol IGMP information The Switch is able to recognize IGMP queries and reports sent between stations and an IGMP router When enabled for IGMP snooping the Switch can open or close a port to specific devices based on the IGMP messages sent from the device to the router or vice versa To display the IP Multicast and IGMP Information s...

Страница 82: ...l or wants to be part of a multicast group Ports The Switch ports supporting the selected multicast group Resetting the Switch Switch settings may be reset simply by powering the Switch off and on again or by performing a Restart System or Factory Reset using either the console interface or the Web Based Network Management function discussed in Chapter 7 Some functions such as changing or enabling...

Страница 83: ...of ports security settings etc will be erased and restored to values present when the Switch was purchased After performing the Factory Reset make sure to redefine the IP settings for the Switch in the Configure IP Address menu Then perform a Restart System on the Switch After these three procedures are performed your Factory Reset is complete Choose Factory Reset from the main menu The following ...

Страница 84: ... is a program which allows a person to read hypertext for example Netscape Navigator or Microsoft Internet Explorer Follow the installation instructions for the browser The second and last step is to configure the IP interface of the Switch This can be done manually through a console see the Configure IP Address section in the Using The Console Interface chapter Management To begin managing your S...

Страница 85: ...anel on the left side Configuration Management Monitoring and Maintenance These are the main categories for Switch management The switch management features are explained below Configuration This first category includes IP Address Switch Module Switch Module Information and Advanced Settings Port Trunk Groups Port Mirroring Spanning Tree Protocol STP Switch Settings and STP Port Settings Forwardin...

Страница 86: ...the physical address Get IP from Choose either Manual where you assign them in the fields below BOOTP or DHCP The BootP and DHCP protocols allow IP addresses subnet masks and default gateways to be assigned on a central server If this option is enabled when the Switch is first powered up it will look for the appropriate server to provide it with these settings IP Address The IP Address for the swi...

Страница 87: ...a name has been assigned System Location Corresponds to the SNMP MIB II variable system sysLocation and is used to indicate the physical location of the Switch for administrative purposes System Contact Corresponds to the SNMP MIB II variable sysContact and is used to give the name and contact information for the person responsible for administering the Switch Switch Module Information The Switch ...

Страница 88: ...e information above is described as follows Auto Partition Capability on All Ports This option offers Enable or Disable to decide whether to auto partition a selected port and take it offline or not Head of Line HOL Blocking Prevention Head of Line blocking occurs when a packet originating on Port 1 for instance needs to be forwarded to Ports 2 and 3 If Port 2 is occupied causing the packet to be ...

Страница 89: ...nfigure the Flow Control setting for the port Selecting On in full duplex mode will implement IEEE 802 3x flow control Selecting On when the port is in half duplex mode will implement normal Ethernet collision based backpressure flow control Select Off for no flow control Also if the port is set for Auto in the speed duplex field above and flow control is enabled flow control whether full or half ...

Страница 90: ...lected 9 Click Apply to let your changes take effect Trunk Groups Figure 7 9 Trunk Groups window The Switch supports up to 16 trunk groups Each module on the Switch supports up to two trunk groups except Gigabit modules which support multiple trunk groups of ports from different modules Gigabit trunk groups must all be of the same media type for example SX LX or T Trunks are groups of ports that a...

Страница 91: ...ceive the copies in the Destination section The destination port is where you will connect a monitoring troubleshooting device such as a sniffer or an RMON probe To complete the port mirroring select Enable in the Status field and click Apply Note You should not mirror a fast port onto a slower port For example if you try to mirror the traffic from a 100 Mbps port onto a 10 Mbps port this can caus...

Страница 92: ...h will start sending its own BPDU to all other switches for permission to become the Root Bridge If it turns out that your Switch has the lowest Bridge Identifier it will become the Root Bridge Hello Time 1 10 sec The Hello Time can be from 1 to 10 seconds This is the interval between two transmissions of BPDU packets sent by the Root Bridge to tell all other switches that it is indeed the Root Br...

Страница 93: ...ned cost of 100 Each 100Mbps port has an assigned Path Cost of 19 Gigabit ports have a cost of 4 Trunked ports have a cost of base cost minus no of ports in the group Priority Port Priority is a read write object that can be set from 0 to 255 The priority is used to determine the designated port if the Path costs of redundant switch to switch connections are the same The higher the port priority t...

Страница 94: ...esn t change locking the forwarding table helps keep intruders off your network since any packet coming from an unknown source address will be dropped by the Switch Address Lookup Mode Select from Level 0 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 or Level 7 MAC Address Aging Enter the desired MAC address aging time in this field 10 to 9999 seconds Static Forwarding Table Figure 7 14 Static F...

Страница 95: ...ort number that permanently forwards traffic from the specified device in the last three fields Click Apply to let your changes take effect MAC Address Filtering Table Figure 7 16 Static MAC Address Filtering window The static filtering function filters out all traffic from unwanted devices by defining the MAC address to be filtered All packets with the MAC address in the source or destination fie...

Страница 96: ...ply to let your changes take effect Static Multicast Filtering Figure 7 18 Static Permanent Multicast Filtering window Static multicast filtering blocks or forwards traffic over each port for one multicast group You can configure each port on the Switch to forward traffic for the specified multicast group If VLANs are enabled you must also specify the VID on which to filter the packets Click New t...

Страница 97: ...ton you will return to the multicast filtering table but your entry will not appear there The VID option will only appear on screen if 802 1Q or Port based VLANs are enabled IGMP Internet Group Management Protocol IGMP snooping allows the Switch to recognize IGMP queries and reports sent between network stations or devices and an IGMP router IGMP is used for managing IP multicast groups The Switch...

Страница 98: ...e the IP Multicast Filtering IGMP Snooping setting from Disabled to Enabled Click the Apply button to let the changes take effect 802 1Q IGMP 802 1Q IGMP allows you to adjust IGMP settings when 802 1Q VLANs are active on your network Figure 7 21 Add Remove IGMP Entries window Click the X in the Delete column next to an entry to remove it from the table Click the pointer icon or the New heading to ...

Страница 99: ... s Guide 94 Web Based Network Management Figure 7 22 Add Remove IGMP Entries Edit window To edit an 802 1Q IGMP entry enter a value from 1 to 4094 in the VLAN ID field and then click Apply Figure 7 23 Configure IGMP Entries window ...

Страница 100: ...onfigure IGMP Entries Edit window To edit an IGMP entry enter a value in the Age out Timer field and then select Enabled or Disabled in the State field Click Apply to let your changes take effect Port based IGMP Port based IGMP allows you to adjust IGMP settings when port based VLANs are active Figure 7 25 Port based IGMP window In this window you can enable or disable IGMP Status for each port ba...

Страница 101: ...ement the type of VLAN or broadcast domain chosen here Management VLAN ID When IEEE 802 1Q VLANs are enabled this is the VLAN that will be used for management packets Make sure the switch port that the management station is connected to has this PVID number and is a member of this 802 1Q VLAN VID This should be the first VLAN you create otherwise you may not be able to communicate with the switch ...

Страница 102: ...olumn next to an entry to remove it from the table Click New to access the Create Remove MAC based Broadcast Domains Edit window Figure 7 28 Create Remove MAC based Broadcast Domains Edit window To add a MAC based broadcast domain enter a description in the field offered Click Apply to let the change take effect Description The name of the MAC based broadcast domain to be added to the switch After...

Страница 103: ...te column next to an entry to remove it from the table Click on the pointer icon to edit a specific entry or click New to add an entry in the Configure MAC based Broadcast Domain Member Edit window Figure 7 30 Configure MAC Based Broadcast Domain Member Edit window To add or edit a MAC based broadcast domain member enter the MAC address and description in the fields offered Items in this window ar...

Страница 104: ...packet Click Apply to let the settings take effect Click on the Port VLAN ID PVID icon to access the following window Figure 7 32 Port VLAN ID PVID window This screen allows you to set a Port VLAN ID number PVID for each port VLAN 1 is the default VLAN All ports are assigned PVID 1 when VLANs are enabled Note If a port is a member of a trunk group but is not the anchor the items shown in the above...

Страница 105: ...can dynamically join a VLAN When GVRP is Disabled then no dynamic VLAN registration is allowed on the switch Click on the Port GVRP icon to access the following window Figure 7 36 Port GVRP window This window allows you to Enable or Disable Group VLAN Registration Protocol GVRP for each port When GVRP is Enabled a user attached to the port s Ethernet segment can dynamically join an 802 1Q VLAN tha...

Страница 106: ...h click New Click Apply to let the changes take effect To enter a new 802 1Q VLAN click on the New icon the pointing finger to access the following window Figure 7 38 Edit 802 1Q Static VLANs window The fields you can set are VID Enter a VLAN ID from 1 to 4094 This is the VLAN that will be defined on this screen VID 1 is the default VLAN All ports are designated members of VID 1 when VLANs are ena...

Страница 107: ... means the port is not given VLAN membership for the VID entered above Clear Erases the VLAN name and deselects any Egress or Forbidden settings Click on the Switch GMRP icon to access the following window Figure 7 39 Switch GMRP window This screen allows you to Enable or Disable Group Multicast Registration Protocol GMRP globally for entire switch When GMRP is Enabled a user attached to the switc...

Страница 108: ... the dash representing the appropriate port number and press space bar to select E for Egress F for Forbidden or leave the dash An E designates the specified port as a static member of the multicast group An F defines the port as a non member and also forbids the port from joining the multicast group dynamically A dash means the port is not given multicast group membership for the VID entered abov...

Страница 109: ...currently installed in the Switch To create a VLAN type in a VLAN Name and then choose ports to belong to the VLAN All computers connected to the chosen Switch ports will belong to the VLAN If a port is grayed out inaccessible it either belongs to another VLAN or is a non anchor member of a Trunk group Adding the anchor port to a VLAN automatically adds the other members of the trunk group Managem...

Страница 110: ...s you to define SNMP communities on your network This section is described as follows Community String A user defined SNMP community name Access Right The permitted access of Read Only or Read Write using the SNMP community name Status Option to activate or deactivate the current community string by setting it to Valid or Invalid The SNMP Trap Manager Configuration allows you to designate trap rec...

Страница 111: ...t window Figure 7 46 User Accounts Control Table Edit window To add or change a User Account fill in the appropriate information in the User Name Old Password New Password and Confirm New Password fields Then select the desired access Normal User or Administrator in the Access Level control and click Apply To delete a User Account enter the requested information and click Delete Console The Consol...

Страница 112: ...g through the console port Console or SLIP Use SLIP for out of band management Baud Rate If SLIP is being used you may set the Baud Rate to 2400 9600 19200 or 38400 Click Apply and then reboot the Switch for console port settings to take effect The default serial port settings are Baud Rate 9600 Data Bits 8 Flow Control None Parity None Stop Bits 1 Monitoring This third main category of the Switch...

Страница 113: ...ames sec Counts the total number of frames transmitted to the segment connected to the ports during the single second just before the update interval RX frames sec Counts the total number of frames received from the segment connected to the ports during the single second just before the update interval of Utilization This shows the percentage of available bandwidth each port is using during the si...

Страница 114: ...5 seconds 30 seconds 60 seconds or Suspend Last Detected Source Address The MAC address of the last device that sent packets over this port Port Traffic Statistics Figure 7 50 Port Traffic Statistics window The port statistics shown by default are those for the port you last configured Once in the individual window you can click any port on the Switch graphic at the top of the window to show stati...

Страница 115: ...device that sent packets over this port Traffic in Bytes Bytes Sent Counts the number of bytes successfully sent from the port Bytes Received Counts the total number of bytes octets included in valid readable frames Total Bytes Received Counts the total number of bytes received on the port whether in valid or invalid frames Traffic in Frames Frames Sent Counts the total number of frames transmitte...

Страница 116: ...ons that occur at or after the 64th byte octet in the frame This may indicate that delays on your Ethernet are too long and you have either exceeded the repeater count or cable length specified in the Ethernet standard MAC Rx Error Counts data errors detectable as 100BASE TX symbol errors bit patterns with illegal encodings This may indicate noise on the line Dropped Frames The number of frames wh...

Страница 117: ...d packets received that were between 512 and 1023 octets in length inclusive excluding framing bits but including FCS octets 1024 1536 The total number of packets including bad packets received that were between 1024 and 1536 octets in length inclusive excluding framing bits but including FCS octets Rx good The number of good frames received This also includes local and dropped packets Tx good The...

Страница 118: ... Table by Port sections above and then click the Find button on the right side of the section used Please note that the VID field will only be shown when VLANs are enabled on the Switch IP Multicast IGMP Information Figure 7 54 IP Multicast IGMP Information window This window allows you to enter a VID at the top of the window and then display the Queries Tx Rx for that VLAN ID The bottom of the wi...

Страница 119: ...ble containing Switch ports Egress status and current untagging status of each port Browse GMRP Status Figure 7 56 Browse GVRP Status window The Switch allows you to display a table containing Switch ports Egress status and current learned or dynamically registered to an 802 1Q VLAN status of each port Switch History This screen allows you to view the switch logs ...

Страница 120: ...ch history Device Status Figure 7 58 Device Status window This screen allows you to activate deacivate the switch alarm in the Buzzer State field which will sound when one of the system fans or power supplies fails It also displays the current status of the System Fans and Power Supply Modules Maintenance The fourth and last main category of the Switch Web based management program includes Firmwar...

Страница 121: ...ted Last TFTP Server Address This read only field displays the IP address of the last TFTP server used Update Management Module Firmware Firmware Update Determines whether or not the Switch should download its new firmware code the next time it is restarted File Name The path and the name on the TFTP server which holds the new firmware image file Change Configuration File Use Config File Toggle to...

Страница 122: ...aved from the NV RAM Make sure you have Saved Changes before saving the settings The information is described as follows Server IP Address The IP address of the TFTP server where the configuration file is File Name The path and file name for the configuration file on the TFTP server Last Upload Status Shows whether the attempt to upload software was successful or not by displaying either Success o...

Страница 123: ...ether the attempt to upload software was successful or not by displaying either Success or Fail Clear Address Table Figure 7 62 Clear Address Table window Click on the Apply button to clear the Switch s forwarding table Save Changes Figure 7 63 Save Changes window To save all the changes made in the current session to the Switch s flash memory click the Save Configuration button Once in the NV RAM...

Страница 124: ...ase After performing a factory reset the Switch will need to be entirely reconfigured from scratch Click the Reset to Factory Default button to initiate the reset Restart System Figure 7 65 Restart System window To reboot the Switch which resets the system to values stored in NV RAM click the Restart button If you have made changes to the settings during this session and wish to keep the changes m...

Страница 125: ...abit Ethernet IEEE 802 1p q IEEE 802 3x Protocol CSMA CD Data Transfer Rate Ethernet Fast Ethernet Gigabit Ethernet Half duplex Full Duplex 10 Mbps 20 Mbps 100 Mbps 200 Mbps n a 2000 Mbps Topology Star Network Cables 10BASE T 100BASE TX 1000BASE T 2 pair Category 3 4 5 UTP max 100 m EIA TIA 568 100 ohm STP max 100 m 2 pair Category 5 UTP max 100 m EIA TIA 568 100 ohm STP max 100 m 2 pair Category ...

Страница 126: ...ans Two built in 60 x 60 mm fans per power supply unit Temperature Operating 0 to 40 C 32 to 104 F Storage 25 to 55 C 13 to 131 F Relative Humidity Operating 5 to 95 non condensing Storage 0 to 95 non condensing Dimensions H 35 6 cm 14 01 in W 44 0 cm 17 32 in D 29 4 cm 11 57 in EMI FCC Class A CE Class A VCCI Class A BSMI Class A C Tick Class A Safety UL CUL TUV CE ...

Страница 127: ...sover cable is necessary Please review these products for matching cable pin assignment The following diagram and table show the standard RJ 45 receptacle connector and their pin assignments for the switch to network adapter card connection and the straight crossover cable for the Switch to switch hub bridge connection Figure B 1 The standard RJ 45 receptacle connector ...

Страница 128: ...sed 5 Not used 6 Rx receive 7 Not used 8 Not used Table B 1 The standard Category 3 cable RJ 45 pin assignment The following shows straight cable and crossover cable connection Figure B 2 Straight cable for Switch uplink MDI II port to switch Hub or other devices connection Figure B 3 Crossover cable for Switch MDI X port to switch hub or other network devices MDI X port connection ...

Страница 129: ...te file RUNTIME Switching software update file CONFIG Image file of switch settings created by the settings backup procedure Image_file This command tells the switch the complete path and filename for the file to be loaded into the switch For example e 6000 6000prom tfp Make sure double quotes are used as in the example file below Ip_addr This is the IP address that will be assigned to the switch ...

Страница 130: ... and only the firmware file will be uploaded to the switch The Config image file which contains all configuration settings and was created by the switch is prefixed with the version number of the runtime software to help with file management Sample Config File Code_type PROM Image_file e 6000 6000prom tfp specify IP address Ip_addr 10 12 19 102 specify subnet mask Subnet_mask 255 128 0 0 specify d...

Страница 131: ...one Password none Device STP Disable Port STP Enable Port enable Enable Bridge max age 20 secs Bridge hello time 2 sec Bridge forward delay 15 sec Bridge priority 32768 Port STP cost 100 10M 19 100M 4 1000M Port STP priority 128 Forwarding MAC address aging time 300 secs Address lookup mode Level 1 NWay Enable Flow control Enable Backpressure Disable Port lock Disable Port priority Normal Broadcas...

Страница 132: ...ntifier 24 Bridge Priority 24 Designated Bridge 24 Root Bridge 24 Root Path Cost 24 Bridge Priority 26 C Changing the Protocol Parameters 47 48 Changing theSNMP Manager Configuration parameters settings 67 Changing your Password 37 39 Community name definition of 66 Community names Private 67 Public 67 Connecting The Switch 17 Console LED indicator 16 Console port RS 232 DCE 20 Console port settin...

Страница 133: ...rite MIBs Definition of 22 RJ 45 Pin Specification 114 root port 48 Routers 2 RS 232 DCE console port 20 S Segments Network 2 Serial Port 41 Setting up the Switch 40 Setup 6 Sharing Resources Across VLANs 29 SLIP interface out of band communication 40 SLIP management 41 SNMP Management Settings 66 67 SNMP Manager Configuration 66 SNMP Manager Configuration parameter Status 67 SNMP MIB II variable ...

Страница 134: ...s 21 Traps definition of 21 U Unpacking 6 Unpacking and Setup 6 10 Untagging 30 User Changeblel Parameters Bridge Forward Delay 25 Bridge Hello Time 25 Bridge Max Age 25 Bridge Priority 25 Port Priority 25 User Changeblel Parameters 25 Using the Console Interface 33 75 utilization 44 45 V ventilation 6 VLAN 27 VLAN Segmentation 28 VLANs Spanning Multiple Switches 29 ...

Страница 135: ...lex Rd Off Cst Rd Santacruz E Bombay 400 098 India TEL 91 22 652 6696 FAX 91 22 652 8914 URL www dlink india com E MAIL service dlink india com ITALY D LINK ITALY Via Nino Bonnet n 6 b 20154 Milano Italy TEL 39 02 2900 0676 FAX 39 02 2900 1723 URL www dlink it E MAIL info dlink it JAPAN D LINK TOKYO 10F 8 8 15 Nishi Gotanda Shinagawa ku Tokyo 141 Japan TEL 81 3 5434 9678 FAX 81 3 5434 9868 URL www...

Страница 136: ...ates D Link Technical Support over the Telephone 877 453 5465 24 hours 7 days a week D Link Technical Support over the Internet http support dlink com email support dlink com Tech Support for customers within Canada D Link Technical Support over the Telephone 800 361 5265 Monday to Friday 7 30am to 12 00am EST D Link Technical Support over the Internet http support dlink ca email support dlink ca ...

Страница 137: ...ng sold As Is without any warranty whatsoever including without limitation the Limited Warranty as described herein notwithstanding anything stated herein to the contrary Submitting A Claim The customer shall return the product to the original purchase point based on its return policy In case the return policy period has expired and the product is within warranty the customer shall submit a claim ...

Страница 138: ...egistered trademarks are the property of their respective owners Copyright Statement No part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from D Link Corporation D Link Systems Inc as stipulated by the United States Copyright Act of 1976...

Страница 139: ...D Link Systems Inc Registration 020905 Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights ...

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