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Chapter 7 System and Port Statistics

ES-1552 User’s Guide

NonUnicastPkts

This field shows the number of nonunicast packets transmitted.

Discards

This field shows the number discarded (dropped) packets.

Errors

This field shows the number of packets for which transmission failed because of

excessive collision.

QLength

This field shows the number of packets currently buffered.

RX
The following fields display detailed information about packets received.

Octets

This field shows the number of octets received.

UnicastPkts

This field shows the number unicast packets received.

NonUnicastPkts

This field shows the number of nonunicast packets received.

Discards

This field shows the number discarded (dropped) packets.

Errors

This field shows the number of undersize, oversize, fragmented or FCS error

packets received.

UnknownProtos

This field shows the number of packets received with unknown protocols.

Summary
The following fields display a summary of types of errors and size of packets transmitted/received.

Drop Events

This is a count of dropped packets due to GBP or backpressure (buffer

overflow).

MulticastPkts

This is a count of transmitted/received multicast packets.

BroadcastPkts

This is a count of transmitted/received broadcast packets.

UndersizePkts

This is a count of transmitted/received packets with length less than the

minimum packet size.

OversizePkts

This is a count of transmitted/received packets with length more than the

maximum packet size.

Fragments

This is a count of transmitted/received packets that were too short (shorter than

64 octets) with invalid FCS or alignment errors.

Jabbers

This is a count of transmitted/received packets that which exceeded maximum

size to receive frame length.

Collision

This is a count of transmitted collision packets.

CRCAlignErr

This is a count of transmitted/received packets that were too short (shorter than

64 octets) with invalid FCS or alignment errors.

TotalOctets

This is a count of all transmitted/received packets that which exceeded

maximum size to receive frame length.

TotalPkts

This is a count of transmitted/received packets (including bad packets, all

unicast, broadcast, multicast and MAC control packets).

64 BytePkts

This field shows the number of packets (including bad packets) received that

were 64 octets in length.

65-127 BytePkts This field shows the number of packets (including bad packets) received that

were between 65 and 127 octets in length.

128-255

BytePkts

This field shows the number of packets (including bad packets) received that

were between 128 and 255 octets in length.

256-511

BytePkts

This field shows the number of packets (including bad packets) received that

were between 256 and 511 octets in length.

Table 11

Status: Port Details (continued)

LABEL

DESCRIPTION

Содержание ES-1552 - V1.12

Страница 1: ...www zyxel com ES 1552 52 port Web managed Ethernet Switch User s Guide Version 1 12 5 2007 Edition 2 ...

Страница 2: ......

Страница 3: ...Online Help Embedded web help for descriptions of individual screens and supplementary information It is recommended you use the web configurator to configure the switch Supporting Disk Refer to the included CD for support documents ZyXEL Web Site Please refer to www zyxel com for additional support documentation and product certifications User Guide Feedback Help us help you Send all User Guide r...

Страница 4: ...stroke is denoted by square brackets and uppercase text for example ENTER means the enter or return key on your keyboard Enter means for you to type one or more characters and then press the ENTER key Select or choose means for you to use one of the predefined choices A right angle bracket within a screen name denotes a mouse click For example Maintenance Log Log Setting means you first click Main...

Страница 5: ... Guide 5 Icons Used in Figures Figures in this User s Guide may use the following generic icons The switch icon is not an exact representation of your device switch Computer Notebook computer Server DSLAM Firewall Telephone Switch Router ...

Страница 6: ...ng cables carefully so that no one will step on them or stumble over them Always disconnect all cables from this device before servicing or disassembling Use ONLY an appropriate power adaptor or cord for your device Connect the power adaptor or cord to the right supply voltage for example 110V AC in North America or 230V AC in Europe Do NOT allow anything to rest on the power adaptor or cord and d...

Страница 7: ...Safety Warnings ES 1552 User s Guide 7 ...

Страница 8: ...Safety Warnings ES 1552 User s Guide 8 ...

Страница 9: ...anced Settings 41 The Web Configurator 43 System 49 Port Settings 55 System and Port Statistics 59 VLAN 63 Trunking 67 Mirroring 69 QoS 71 Port Rate Limit and Storm Control 79 Layer 2 L2 Management 83 Cable Diagnostics 87 Auto Denial of Service DoS 89 Auto VoIP 93 Management and Troubleshooting 95 Event Logging 97 SNMP 105 RMON Lite 119 Dynamic ARP 135 Troubleshooting 139 Appendices and Index 147 ...

Страница 10: ...Contents Overview ES 1552 User s Guide 10 ...

Страница 11: ...1 2 Bridging Example 28 1 1 3 High Performance Switching Example 28 1 1 4 IEEE 802 1Q VLAN Application Examples 29 Chapter 2 Hardware Installation and Connection 31 2 1 Freestanding Installation 31 2 2 Mounting the Switch on a Rack 32 2 2 1 Rack mounted Installation Requirements 32 2 2 2 Attaching the Mounting Brackets to the Switch 32 2 2 3 Mounting the Switch on a Rack 33 Chapter 3 Hardware Over...

Страница 12: ...on 47 4 5 Switch Lockout 47 4 6 Resetting the Switch 47 4 7 Logging Out of the Web Configurator 47 4 8 Help 48 Chapter 5 System 49 5 1 System Screen 49 5 1 1 Configure IP Address 50 5 1 2 Layer 2 L2 Table Aging 50 5 1 3 Backup Settings 51 5 1 4 Restore Settings 51 5 2 System Change Password 52 5 3 Firmware Upgrade 52 5 3 1 System Restart Reset 53 Chapter 6 Port Settings 55 6 1 Port Status 55 6 2 P...

Страница 13: ... 10 1 Port Mirroring Settings 69 Chapter 11 QoS 71 11 1 QoS Overview 71 11 1 1 Weighted Round Robin WRR 71 11 1 2 Strict Priority 71 11 2 QoS Enhancement 72 11 3 Configuring QoS 72 11 3 1 Change Number of Queues 73 11 4 Advanced QoS Settings 74 11 4 1 Port Based QoS 74 11 4 2 DSCP Based QoS 75 11 4 3 Differentiated Services Code Point DSCP Overview 75 11 4 4 DSCP Based QoS Screen 75 11 4 5 ToS Bas...

Страница 14: ...Auto DoS Attack Prevention 90 Chapter 16 Auto VoIP 93 16 1 About Auto VoIP 93 16 2 Auto VoIP Settings 93 Part III Management and Troubleshooting 95 Chapter 17 Event Logging 97 17 1 Event Logging Overview 97 17 2 Logging Screen 97 17 3 Logging Add Server 98 17 4 Viewing RAM and Flash Logs 99 17 5 Searching RAM and Flash Logs 100 17 5 1 Search Results 102 Chapter 18 SNMP 105 18 1 About SNMP 105 18 1...

Страница 15: ...iew 122 19 4 2 RMON History Control Modify 123 19 4 3 RMON History Statistics Overview 124 19 4 4 RMON History Statistics Control 125 19 5 RMON Alarm Overview 127 19 5 1 RMON Alarm Create New Alarm 128 19 6 RMON Event Overview 129 19 6 1 RMON Event Create New Event 130 19 7 RMON Event Log Overview 131 19 7 1 RMON Event Log Event 132 Chapter 20 Dynamic ARP 135 20 1 ARP Table Overview 135 20 1 1 ARP...

Страница 16: ...nts ES 1552 User s Guide 16 Part IV Appendices and Index 147 Appendix A Product Specifications 149 Appendix B IP Addresses and Subnetting 153 Appendix C Legal Information 161 Appendix D Customer Support 165 Index 169 ...

Страница 17: ...onfigurator Login 44 Figure 15 Web Configurator Home Screen System 44 Figure 16 LED Panel 45 Figure 17 Change Administrator Login Password 47 Figure 18 Web Configurator Logout Link 48 Figure 19 System 49 Figure 20 Configure IP Address 50 Figure 21 Configure L2 Table Aging 50 Figure 22 Restore Settings 51 Figure 23 Restore Configuration Error 51 Figure 24 System Password 52 Figure 25 Firmware Upgra...

Страница 18: ...gement Model 105 Figure 58 SNMP EngineID 107 Figure 59 SNMP Group 108 Figure 60 SNMP Group Create 108 Figure 61 SNMP Group Modify 109 Figure 62 SNMP User 110 Figure 63 SNMP User Create 111 Figure 64 SNMP User Modify 111 Figure 65 SNMP Community 112 Figure 66 SNMP Community Create 113 Figure 67 SNMP Community Modify 114 Figure 68 SNMP Notification 115 Figure 69 SNMP Trap Station 116 Figure 70 SNMP ...

Страница 19: ...s 137 Figure 87 Pop up Blocker 140 Figure 88 Internet Options 141 Figure 89 Internet Options 142 Figure 90 Pop up Blocker Settings 142 Figure 91 Internet Options 143 Figure 92 Security Settings Java Scripting 144 Figure 93 Security Settings Java 144 Figure 94 Java Sun 145 Figure 95 Network Number and Host ID 154 Figure 96 Subnetting Example Before Subnetting 156 Figure 97 Subnetting Example After ...

Страница 20: ...List of Figures ES 1552 User s Guide 20 ...

Страница 21: ... Setting 73 Table 18 Port Based QoS 75 Table 19 DSCP Based QoS 76 Table 20 ToS Based QoS 77 Table 21 IP Address Based QoS 78 Table 22 Rate Limit and Storm Control 80 Table 23 Rate Limit Configuration 80 Table 24 Broadcast Storm Control 82 Table 25 L2 Management 83 Table 26 Add a Static MAC Entry 84 Table 27 Display L2 Address Table 85 Table 28 Cable Diagnostic 87 Table 29 DoS Attack Summary 89 Tab...

Страница 22: ...58 RMON History Statistics Overview 125 Table 59 RMON History Statistics Control 126 Table 60 RMON Alarm Overview 127 Table 61 RMON Alarm Create New Alarm 129 Table 62 RMON Event Overview 130 Table 63 RMON Event Configuration Screens 131 Table 64 RMON Event Log Overview 132 Table 65 RMON Event Log Event 133 Table 66 ARP Table 136 Table 67 ARP Table 137 Table 68 ARP Table 138 Table 69 Troubleshooti...

Страница 23: ...List of Tables ES 1552 User s Guide 23 Table 82 Subnet 4 158 Table 83 Eight Subnets 158 Table 84 24 bit Network Number Subnet Planning 159 Table 85 16 bit Network Number Subnet Planning 159 ...

Страница 24: ...List of Tables ES 1552 User s Guide 24 ...

Страница 25: ...25 PART I Introduction and Hardware Overview Getting to Know Your Switch 27 Hardware Installation and Connection 31 Hardware Overview 35 ...

Страница 26: ...26 ...

Страница 27: ...ge 149 for a full list of software features available on the switch 1 1 1 Backbone Application The switch is an ideal solution for small networks where rapid growth can be expected in the near future The switch can be used standalone for a group of heavy traffic users You can connect computers and servers directly to the switch s port or connect other switches to the switch In this example all com...

Страница 28: ...g network managers to centralize multiple servers at a single location Figure 2 Bridging Application 1 1 3 High Performance Switching Example The switch is ideal for connecting two networks that need high bandwidth In the following example use trunking to connect these two networks Switching to higher speed LANs such as ATM Asynchronous Transmission Mode is not feasible for most people due to the ...

Страница 29: ...e same group s unless such traffic first goes through a router For more information on VLANs refer to Chapter 8 on page 63 1 1 4 1 Tag based VLAN Example Ports in the same VLAN group share the same frame broadcast domain thus increase network performance through reduced broadcast traffic VLAN groups can be modified at any time by adding moving or changing ports without any re cabling Shared resour...

Страница 30: ...Chapter 1 Getting to Know Your Switch ES 1552 User s Guide 30 ...

Страница 31: ...eight of the switch and the connected cables Make sure there is a power outlet nearby 3 Make sure there is enough clearance around the switch to allow air circulation and the attachment of cables and the power cord 4 Remove the adhesive backing from the rubber feet 5 Attach the rubber feet to each corner on the bottom of the switch These rubber feet help protect the switch from shock or vibration ...

Страница 32: ...d Installation Requirements Two mounting brackets Eight M3 flat head screws and a 2 Philips screwdriver Four M5 flat head screws and a 2 Philips screwdriver Failure to use the proper screws may damage the unit 2 2 1 1 Precautions Make sure the rack will safely support the combined weight of all the equipment it contains Make sure the position of the switch does not make the rack unstable or top he...

Страница 33: ...u may now mount the switch on a rack Proceed to the next section 2 2 3 Mounting the Switch on a Rack 1 Position a mounting bracket that is already attached to the switch on one side of the rack lining up the two screw holes on the bracket with the screw holes on the side of the rack Figure 7 Mounting the Switch on a Rack 2 Using a 2 Philips screwdriver install the M5 flat head screws through the m...

Страница 34: ...Chapter 2 Hardware Installation and Connection ES 1552 User s Guide 34 ...

Страница 35: ...n 10 100Mbps Fast Ethernet the speed can be 10Mbps or 100Mbps and the duplex mode can be half duplex or full duplex 10 100 Mbps RJ 45 Ethernet Ports LEDs RJ 45 Gigabit Ethernet Ports Mini GBIC Slots RESET Button PWR Table 1 Panel Connections CONNECTOR DESCRIPTION 10 100 Mbps RJ 45 Ethernet Ports Connect these ports to a computer a hub an Ethernet switch or router RJ 45 Gigabit Ethernet Ports Conne...

Страница 36: ...lots for mini GBIC transceivers A transceiver is a single unit that houses a transmitter and a receiver The switch does not come with transceivers You must use transceivers that comply with the SFP Transceiver MultiSource Agreement MSA See the SFF committee s INF 8074i specification Rev 1 0 for details You can change transceivers while the switch is operating You can use different transceivers to ...

Страница 37: ...a mini GBIC transceiver SFP module 1 Open the transceiver s latch latch styles vary Figure 11 Opening the Transceiver s Latch Example 2 Pull the transceiver out of the slot Figure 12 Transceiver Removal Example 3 2 The RESET Button The switch allows you to reset the switch to its factory default configuration via the RESET button Press the RESET button for one second and release The switch automat...

Страница 38: ... Rear Panel 3 3 1 Power Connector Make sure you are using the correct power source as shown on the panel To connect the power to the switch insert the female end of power cord to the power receptacle on the rear panel Connect the other end of the supplied power cord to a 100 240V AC 0 8A power outlet 3 4 LEDs The following table describes the LEDs Table 2 LEDs LED COLOR STATUS DESCRIPTION PWR Gree...

Страница 39: ...hernet network is down ACT Green On The link to an Ethernet network is up Blinking The Ethernet port is transmitting receiving data Off The link to an Ethernet network is down GBIC Slots LNK Green On The port has a successful connection Off No Ethernet device is connected to this port ACT Green Blinking The port is receiving or transmitting data Off The link to an Ethernet network is down Table 2 ...

Страница 40: ...Chapter 3 Hardware Overview ES 1552 User s Guide 40 ...

Страница 41: ...Settings The Web Configurator 43 System 49 Port Settings 55 59 VLAN 63 Trunking 67 Mirroring 69 QoS 71 Port Rate Limit and Storm Control 79 Layer 2 L2 Management 83 Cable Diagnostics 87 Auto Denial of Service DoS 89 Auto VoIP 93 ...

Страница 42: ...42 ...

Страница 43: ...he recommended screen resolution is 1024 by 768 pixels In order to use the web configurator you need to allow Web browser pop up windows from your device Web pop up blocking is enabled by default in Windows XP SP Service Pack 2 JavaScript enabled by default Java permissions enabled by default 4 2 System Login 1 Start your web browser 2 Type http and the IP address of the switch for example the def...

Страница 44: ...rator The following figure shows the navigating components of the web configurator screen Figure 15 Web Configurator Home Screen System A The LED panel displays the port status B The navigation panel has links to screens that let you configure the switch features C The function frame allows you to view and edit individual feature settings D Use the Help link to find out more information about the ...

Страница 45: ...m Use these screens to view general system information such as firmware version IP address and so on You can also use this screen to backup and restore your configuration Status Use this screen to view general system and hardware monitoring information Password Use this screen to change the system login password Firmware Use this screen to perform firmware upgrades Restart Reset Use this screen to...

Страница 46: ... Internet Protocol VoIP traffic Logging Use these screens to configure log settings and view system logs Settings Use this screen to configure which events the switch should log RAM Logs Use this screen to configure logs which are saved to volatile memory These logs are cleared when the switch is rebooted Flash Logs Use this screen to configure logs which are saved to non volatile memory You can v...

Страница 47: ... you lock yourself and others from the switch or forget the administrator password you will need to reset the switch back to the factory defaults Use the RESET button on the front panel of the switch to reset the switch back to factory defaults Press and hold the RESET button for one second The switch will reload its factory defaults The switch is now reinitialized with a default configuration fil...

Страница 48: ...Figure 18 Web Configurator Logout Link 4 8 Help The web configurator s online help has descriptions of individual screens and some supplementary information Click the Help link from a web configurator screen to view an online help description of that screen ...

Страница 49: ... Firmware Version This field displays the version number of the switch s current firmware Click Upgrade to go to the firmware upgrade screen See Section 5 3 on page 52 Build Date This field displays the date of the currently installed firmware MAC Address This field displays the MAC address of the switch IP Address This field indicates the IP address of the switch You can click the existing IP add...

Страница 50: ...ound information Click the link in the L2 Table Aging field to see the screen as shown next Figure 21 Configure L2 Table Aging Backup settings Click this link to create and save a backup configuration file See Section 5 1 3 on page 51 Restore settings Click this link to upload an existing configuration file to the switch See Section 5 1 4 on page 51 Table 5 System continued LABEL DESCRIPTION Table...

Страница 51: ...r from the Save in drop down list box and type a descriptive name for it in the File name list box Click Save to save the configuration file to your computer 5 1 4 Restore Settings Restore a previously saved configuration from your computer to the switch using the Restore Settings screen Figure 22 Restore Settings Type the path and file name of the configuration file you wish to restore in the Ple...

Страница 52: ...rmware and version to your computer before uploading to the device 1 Be sure to upload the correct model firmware as uploading the wrong model firmware may damage your device From the System screen click Upgrade in the Firmware Version field to display the screen as shown next Table 7 Change Password LABEL DESCRIPTION Old Password Type the existing system password 1234 is the default password when...

Страница 53: ... the file click Upgrade After the firmware upgrade process is complete see the System Status screen to verify your current firmware version number 5 3 1 System Restart Reset Click System Restart Reset to perform a system restart keep current configuration or a system reset restore the switch s default configuration settings Follow the instructions in the screen below to reset or restart the switch...

Страница 54: ...Chapter 5 System ES 1552 User s Guide 54 ...

Страница 55: ...ings This chapter describes how to view and configure the port settings on the switch 6 1 Port Status Use this screen to view switch port settings Click System Port in the navigation panel to display the Port Status screen Figure 27 Port Status ...

Страница 56: ...s This field displays either Enabled or Disabled PVID The PVID field specifies what tag the incoming untagged frames receive on that port so that the frames are forwarded to the VLAN group that the tag defines Table 9 Port Configuration LABEL DESCRIPTION Port This is the port index number Admin Select Enable to activate the port or Disable to deactivate the port Auto Negotiate Select Enable and th...

Страница 57: ...ing signals when the receiving port memory buffers fill Back Pressure flow control is typically used in half duplex mode to send a collision signal to the sending port mimicking a state of packet collision causing the sending port to temporarily stop sending signals and resend later Select Enable to turn this feature on or select Disable to turn it off Default Priority This priority value is added...

Страница 58: ...Chapter 6 Port Settings ES 1552 User s Guide 58 ...

Страница 59: ... port showing statistical details 7 2 Statistics Summary Click Statistics in the navigation panel to view the screen as shown Use this screen to view the traffic counters for the switch Figure 29 Statistics The following table describes the labels in this screen Table 10 Statistics LABEL DESCRIPTION Clear Counters Click this to reset all counters to zero Refresh Click this to retrieve the current ...

Страница 60: ...y the Port Details screen refer to Figure 30 on page 60 Tx This field shows the number of transmitted frames on this port Rx This field shows the number of received frames on this port Table 10 Statistics continued LABEL DESCRIPTION Table 11 Status Port Details LABEL DESCRIPTION Refresh Click this to retrieve the current information from the switch and update this screen Port This field displays t...

Страница 61: ... of transmitted received packets with length less than the minimum packet size OversizePkts This is a count of transmitted received packets with length more than the maximum packet size Fragments This is a count of transmitted received packets that were too short shorter than 64 octets with invalid FCS or alignment errors Jabbers This is a count of transmitted received packets that which exceeded ...

Страница 62: ... the number of packets including bad packets received that were between 512 and 1023 octets in length 1024 1518 BytePkts This field shows the number of packets including bad packets received that were between 1024 and 1522 octets in length Table 11 Status Port Details continued LABEL DESCRIPTION ...

Страница 63: ... possible maximum number of 4 096 VLANs Note that user priority and VLAN ID are independent of each other A frame with VID VLAN Identifier of null 0 is called a priority frame meaning that only the priority level is significant and the default VID of the ingress port is given as the VID of the frame Of the 4096 possible VIDs a VID of 0 is used to identify priority frames and value 4095 FFF is rese...

Страница 64: ...VLAN ID Select which VLAN you want to configure or click Create New VLAN to go to the new VLAN configuration screen VLAN Status Table This table shows you the existing VLANs and their configurations VLAN ID Click on the VLAN ID to go to the VLAN edit screen Member Ports All the ports participating in the VLAN are listed here The ports show up in two different colors Orange When the packet leaves t...

Страница 65: ...ble states are empty This indicates that the port is not part of the VLAN T This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed 1 52 These buttons allow you to specify whether the individual ports are members of this V...

Страница 66: ...is indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed 1 52 These buttons allow you to specify whether the individual ports are members of this VLAN Click the buttons below the numbers to change the state of the port The po...

Страница 67: ...lable ports you have A trunk group is one logical link containing multiple ports 9 1 1 Distribution Criterion The switch uses a traffic distribution algorithm to balance traffic between trunk members The switch allows you to specify what criteria it should use to calculate the most efficient distribution of traffic The choices are Source MAC Address SA Destination MAC Address DA or both SA DA The ...

Страница 68: ...ify Trunk Group Member Configure the following settings to create and modify trunk groups Trunk id Select the trunk you want to modify or select a trunk id which is not yet configured to create a new trunk group Port Select the port you want to add or delete Add Click this to add the port to the trunk group you selected in the Trunk id field Del Click this to delete the port from the trunk group y...

Страница 69: ...to the monitor port Figure 35 Mirror Setting The following table describes the labels in this screen Table 16 Mirror Setting LABEL DESCRIPTION Mode Select Enabled to turn on port mirroring or select Disabled to turn it off Ingress Mirror Select the ports for which you want to monitor the ingress incoming traffic Egress Mirror Select the ports for which you want to monitor the egress outgoing traff...

Страница 70: ...Chapter 10 Mirroring ES 1552 User s Guide 70 ...

Страница 71: ...mber of queues being used This works in a looping fashion until a queue is empty Weighted Round Robin WRR scheduling uses the same algorithm as round robin scheduling but services queues based on their priority and queue weight the number you configure in the queue Weight field rather than a fixed amount of bandwidth WRR is activated only when a port has more traffic than it can handle Queues with...

Страница 72: ... packets based on their Differentiated Services Code Points DSCPs See Section 11 4 2 on page 75 ToS Based QoS Assign priority to packets based on their Type of Service ToS tagging See Section 11 4 5 on page 76 Advanced QoS methods only affect the internal priority queue mapping for the switch The switch does not modify the IEEE 802 1p value for the egress frames You can choose one of these ways to...

Страница 73: ...hts can only be changed when Weighted Round Robin is selected Weighted Round Robin scheduling services queues on a rotating basis based on their queue weight the number you configure in the queue Weight field Queues with larger weights get more service than queues with smaller weights Priority This value indicates packet priority and is retrieved from the priority tag field of incoming packets The...

Страница 74: ...ng methods Advanced QoS methods only affect the internal priority queue mapping for the switch The switch does not modify the IEEE 802 1p value for the egress frames 11 4 1 Port Based QoS You can configure the switch to assign a IEEE 802 1p priority to packets based on the ingress incoming port of the packet Select Port Based QoS in the QoS Enhancement Setting screen to view the following screen F...

Страница 75: ...ine up to 64 service levels You can configure the DSCP to IEEE 802 1p mapping to allow the switch to prioritize all traffic based on the incoming DSCP value according to the DiffServ to IEEE 802 1p mapping table 11 4 4 DSCP Based QoS Screen You can configure the switch to assign a IEEE 802 1p priority to packets coming into the switch with DSCPs assigned to them Select DSCP Based QoS in the QoS En...

Страница 76: ...e switch Change Priority Configure the following DSCP Select the DSCP priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the DSCP priority you specified in the DSCP field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings DSCP Priority This is a summa...

Страница 77: ...ange Priority Configure the following TOS Select the ToS priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the ToS priority you specified in the TOS field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings TOS Priority This is a summary table of your...

Страница 78: ... fields to edit existing IP address based QoS entries Select the index of an existing IP address based QoS entry This is the same value as listed in the ID column of this screen Select the Priority you want to assign to this entry Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings ID IP MASK Priority Delete This is a summary table of y...

Страница 79: ...t and set up broadcast storm control settings using the Port Rate and Storm Control screens 12 1 Port Rate Screen Rate control means defining a maximum allowable bandwidth for incoming and or out going traffic flows on a port Click Rate Port Rate in the navigation panel to bring up the screen as shown next Figure 42 Port Rate Limit ...

Страница 80: ...maximum bandwidth allowed in kilobits per second Kbps for the incoming traffic flow on a port Egress Rate Displays the maximum bandwidth allowed in kilobits per second Kbps for the out going traffic flow on a port Table 23 Rate Limit Configuration LABEL DESCRIPTION Ingress Rate Specify the maximum bandwidth allowed in kilobits per second Kbps for the incoming traffic flow on a port Egress Traffic ...

Страница 81: ...holds the tokens In other words the number of tokens in the bucket represents the maximum allowed bandwidth to go out on the port The size of the bucket is specified by the burst size see below Every time traffic goes out on the port tokens representing used up bandwidth are removed from the bucket thus limiting the amount of traffic allowed to go out on the port Tokens are also added to the bucke...

Страница 82: ...cify a limit for the amount of broadcast packets received per second Broadcast and multicast to specify a limit for the amount of broadcast and multicast packets received per second Broadcast and unknown unicast to specify a limit for the amount of broadcast and DLF packets received per second Broadcast multicast and unknown unicast to specify a limit for the amount of broadcast multicast and DLF ...

Страница 83: ...2 Address Management in the navigation panel to display the configuration screen as shown Figure 45 L2 Management The following table describes the labels in this screen Table 25 L2 Management LABEL DESCRIPTION Address Lookup Enter the MAC address and the corresponding Vlan ID in the MAC and VID fields respectively Click Lookup to search for the MAC address entry in the MAC address table Static Ad...

Страница 84: ...rt This field displays the port number of a manually entered MAC address entry Delete Click DELETE to remove this manually entered MAC address entry from the MAC address table Table 25 L2 Management continued LABEL DESCRIPTION Table 26 Add a Static MAC Entry LABEL DESCRIPTION MAC Address Enter the MAC address in valid MAC address format that is six hexadecimal character pairs Note Static MAC addre...

Страница 85: ... number of the MAC address entry Source MAC This field displays the MAC address VID This field displays the VID of a manually entered MAC address entry Port This field displays the port number of a MAC address entry or it displays HOST if its the entry for the switch itself Type This field displays whether this entry was entered manually into the L2 address table static or whether it was learned b...

Страница 86: ...Chapter 13 Layer 2 L2 Management ES 1552 User s Guide 86 ...

Страница 87: ...form cable testing on the specified port Diagnostic for Port 01 This field displays the number of wired pairs the port is communicating over Status This field displays the results of the test Ok the cable is working properly Open there is no cable connected to the port or the cable is damaged Short there is a short along the cable Short between pair there is a short between two twisted pairs of ca...

Страница 88: ...Chapter 14 Cable Diagnostics ES 1552 User s Guide 88 ...

Страница 89: ...ending a specially crafted packet to a machine where the source host port is the same as the destination host port The system attempts to reply to itself resulting in system lockup SYNFIN scans SYNchronization SYN ACKnowledgment ACK and FINish FIN packets are used to initiate acknowledge and conclude TCP IP communication sessions The following scans exploit weaknesses in the TCP IP specification a...

Страница 90: ...dvanced Auto DoS Attack Prevention screen to configure DoS attack prevention settings for individual ports Click the Advanced link in the Global Auto DoS Attack Prevention screen to view the following screen Table 30 Global Auto DoS Attack Prevention LABEL DESCRIPTION Advanced Click this link to configure advance Auto DoS settings Denial of Service Prevention Select the types of attacks you want t...

Страница 91: ...ce Prevention Select the types of attacks you want to prevent or choose Select All to prevent all types of attacks and scans supported by the switch See Section 15 1 1 on page 89 for more information on specific types of attacks Parameter For Ping and SYN SYN ACK Flooding attacks you can specify thresholds for triggering the dropping of packets by the switch Select 64 kbps the switch will drop pac...

Страница 92: ...Chapter 15 Auto Denial of Service DoS ES 1552 User s Guide 92 ...

Страница 93: ...ly matches VoIP packets in Ethernet switches and provides them with the highest class of service The AutoVoIP feature provides the capability to assign the highest priority for the following VoIP packets SIP Session Initiation Protocol is an internationally recognized standard for implementing VoIP SIP is an application layer control signaling protocol that handles the setting up altering and tear...

Страница 94: ...e labels in this screen Table 32 Auto VoIP Settings LABEL DESCRIPTION Profiles Select Disable if you don t want to give higher priority to VoIP traffic or select IP Phone to give the highest priority to SIP MGCP and SCCP packets passing through the switch Apply Click Apply to save your changes to the switch ...

Страница 95: ...95 PART III Management and Troubleshooting Event Logging 97 SNMP 105 RMON Lite 119 Dynamic ARP 135 Troubleshooting 139 ...

Страница 96: ...96 ...

Страница 97: ... You can view the logs even after the switch is rebooted Due to the space limitations on the switch the oldest log entries are overwritten as new events are recorded Server You can configure syslog servers to store system events from the switch The switch uses UDP protocol to send log messages to the remote servers The syslog servers must be Berkeley Software Distribution BSD syslog protocol compl...

Страница 98: ...stem events such as configuration changes or logins Debug to record events which can be helpful for engineering debugging of the switch s function This field is not recommended to track as it creates many messages not helpful to typical users For RAM and Flash logs you can also hit Clear to delete all log entries For each Server log you configured you can hit Delete to remove this syslog server fr...

Страница 99: ...llowing table describes the labels in this screen Table 35 Logging RAM Flash LABEL DESCRIPTION Search Click this to search for specific log entries Export Click this to export save the log The logs default name is events csv A csv Comma Separated Values file can be viewed by most spreadsheet software such as Microsoft s Excel No This is the number of the log entry The log entries with the lowest n...

Страница 100: ...s or logins Debug to record events which can be helpful for engineering debugging of the switch s function This field is not recommended to track as it creates many messages not helpful to typical users Category This field displays what category the log entry fits The categories are based on software and hardware features of the switch For example the category AUTODOS records events which deal wit...

Страница 101: ...Chapter 17 Event Logging ES 1552 User s Guide 101 Figure 55 Searching RAM Flash Logs ...

Страница 102: ...mmended to track as it creates many messages not helpful to typical users Category Select All to search all categories or specify the individual categories you want to search The categories are based on software and hardware features of the switch For example the category AUTODOS records events which deal with the Auto Denial of Service features you set up and the category SYSTEM records events wh...

Страница 103: ...ents which deal with the Auto Denial of Service features you set up and the category SYSTEM records events which deal with the overall operation of the switch Time This field specifies the time when the switch recorded the log event The switch resets its internal clock when it is restarted to 2006 5 1 00 00 00 Message This field displays an explanation for the log entry Table 37 Logs Search Result...

Страница 104: ...Chapter 17 Event Logging ES 1552 User s Guide 104 ...

Страница 105: ...gure 57 SNMP Management Model An SNMP managed network consists of two main components agents and a manager An agent is a management software module that resides in a managed switch the switch An agent translates the local management information from the managed switch into a form compatible with SNMP The manager is the console through which network administrators perform network management functio...

Страница 106: ...A group is a group of SNMP managers that are assigned common access rights to MIBs For example one group of managers may only have access to agents with MIB II System Group MIBs while another may have access to agents with the Ether like MIB Table 38 SNMP Commands COMMAND DESCRIPTION Get Allows the manager to retrieve an object variable from the agent GetNext Allows the manager to retrieve the nex...

Страница 107: ...ew the screen as shown Figure 58 SNMP EngineID The following table describes the labels in this screen 18 2 SNMP Group An SNMP group is a set of managers that are assigned common access rights to agent MIBs You can also choose to have all managers in a group authenticate with agents Use the SNMP Group screen to create SNMP groups Click SNMP Group to view the screen as shown Table 40 SNMP EngineID ...

Страница 108: ...roup identification number It is used for identification only Click on the individual group number to edit the group settings Group Name This field displays the name of the SNMP group SNMP Version This field indicates which SNMP version this group uses to manage the switch Authentication This field indicates whether authentication is required for members of this group Authentication can only be co...

Страница 109: ...v2c authentication is always disabled Access Read select Enabled to allow this group to collect information from this switch Write select Enabled to allow this group to create or edit MIBs Create Click this to add this SNMP group to the switch Note A maximum of ten groups can be created on the switch Cancel Click this to go back to the main SNMP Group screen without saving your changes Table 43 SN...

Страница 110: ...ply Click this to save your settings to the switch Table 43 SNMP Group Modify continued LABEL DESCRIPTION Table 44 SNMP User LABEL DESCRIPTION User ID Select the SNMP user you want to edit Create New User Click this to configure a new SNMP user User ID This field indicates the manager identification number It is used for identification only Click on the individual user number to edit the user sett...

Страница 111: ...owed Group Name Specify the SNMP group this user belongs to SNMP Version Specify the SNMP version this group uses to manage the switch Auth Type Authentication can only be configured for SNMP v3 Select None to allow this user to manage the switch without authentication or select MD5 and configure the Key field to force this user to authenticate with the switch Key Enter the MD5 key this user must ...

Страница 112: ...Display All User to view the main SNMP User screen User Name Edit the name for this SNMP user Group Name Select the SNMP group this user should belong to SNMP Version Specify the SNMP version this group uses to manage the switch Auth Type Authentication can only be configured for SNMP v3 Select None to allow this user to manage the switch without authentication or select MD5 and configure the New ...

Страница 113: ...oup which is part of this SNMP community Previous Page Next Page Use these navigation links to browse all of your SNMP groups Table 47 SNMP Community continued LABEL DESCRIPTION Table 48 SNMP Community Create LABEL DESCRIPTION Community String An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the management station the SNMP ...

Страница 114: ...the notification mechanisms Click SNMP Trap Station to view the screen as shown Table 49 SNMP Community Modify LABEL DESCRIPTION Community ID This field indicates which community you are modifying Click on Remove This Community to delete this user configuration from the switch Click on Display All Community to view the main SNMP Community screen Community String An SNMP community string is a text ...

Страница 115: ...ng of SNMP traps to a remote SNMP management station s Click SNMP Trap Station to view the screen as shown Table 50 SNMP Notification LABEL DESCRIPTION Enable SNMP Notification Select this to enable the sending of SNMP traps to a remote SNMP management station Enable Authentication Notification Select this to enable logging of failed authentication attempts If an SNMP manager uses an unmatched com...

Страница 116: ...s field indicates the trap station number It is used for identification only Click on the individual trap station number to edit the trap station settings Remote IP Address This field displays the IP address of the remote SNMP management station Community String An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the managemen...

Страница 117: ...al notation Community String Specify the community string used with this remote trap station Create Click this to add this SNMP user to the switch Cancel Click this to go back to the main SNMP Group screen without saving your changes Table 53 SNMP Trap Station Modify LABEL DESCRIPTION Trap ID This field indicates which trap station you are modifying Click on Remove This Trap Station to delete this...

Страница 118: ...Chapter 18 SNMP ES 1552 User s Guide 118 ...

Страница 119: ... of managing a network There are a total of nine RMON MIB groups defined in RFC 2819 The switch supports four of the RMON MIB groups Group 1 Statistics Group 2 History Group 3 Alarm Group 9 Event The switch s implementation is therefore referred to as RMON Lite The following sections describe how to configure the RMON Lite settings on the switch Refer to RFC 2819 for more information on RMON MIBs ...

Страница 120: ...en to the selected MIB table view Refresh Click this to update all the fields in the RMON Lite Statistics Overview screen Data Source This field displays the ports on the switch Click on the port number to configure the settings for that port Owner This field displays the entry creator It displays monitor if the entry was created by the switch itself Status This field displays Enabled if statistic...

Страница 121: ...s in the RMON Statistics Port screen RMON MIB Object This column displays all types of statistics gathered for this port It displays the results in the Value column StatsDropEvents This field displays the total number of packets that were dropped StatsOctets This field displays the total number of octets received StatsPkts This field displays the total number of all good packets received StatsBroa...

Страница 122: ...This field displays the number of frames dropped because they were longer than 1518 octets and contained an invalid FCS including alignment errors StatsCollisions This field displays the total number of collisions occurred StatsPkts64Octets This field displays the number of packets including bad packets received that were 64 octets in length StatsPkts65to127Octets This field displays the number of...

Страница 123: ... the selected MIB table view Refresh Click this to update all the fields in the RMON History Control Overview screen Index This field displays the configuration index number Data Source This is the port of the switch polled for data Bucket Requested This field displays the number of data samplings the network manager requests the probe to store Bucket Granted This field displays the number of data...

Страница 124: ...e you want to view Click Apply to refresh the screen to the selected MIB table view Index This field displays the entry index number Data Source This field displays the port number associated with the Index entry BucketRequeste d This field displays the number of samplings the Owner of the entry requests Interval Enter the time in seconds between data samplings Owner Enter a descriptive name of th...

Страница 125: ... Statistics Overview LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Statistics Overview screen History Control Index This field displays the configuration index number Click on the index number to view the details fo...

Страница 126: ...mple Multicast Packets This field displays the total number of good multicast packets received in this polling sample CRCAlign Errors This field displays the number of packets between 64 1518 octets long dropped in this polling sample because they either had bad Frame Check Sequence FCS or non integral number of octets alignment error Undersize Packets This field displays the number of packets inc...

Страница 127: ...MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Alarm Overview screen Create new Alarm Click this to view the RMON Alarm Create New Alarm screen where you can configure the parameters for an alarm Index This field displays the alarm configuration index number Click this number to edit the alarm entr...

Страница 128: ... Create New Alarm RisingThreshol d This field displays the rising threshold value set up for this alarm FallingThreshol d This field displays the falling threshold value set up for this alarm Rising Event Index This field indicates the index number of the event entry which corresponds to the time when the alarm threshold was crossed Falling Event Index This field indicates the index number of the ...

Страница 129: ...larm is triggered the choices are Drop Events Octets Packets and so on Sample Type Select the method of obtaining the sample value Choices are Absolute and Value Startup Alarm Select the startup alarm type Rising Threshold Falling Threshold Rising Or Falling Threshold Rising Threshold Specify a rising threshold between 0 and 2147483647 When a value is greater or equal to this threshold the probe t...

Страница 130: ...ck Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Overview screen Create new Event Click this to configure new events on the switch Index This field displays an event index number Click this number to edit the event entry Description This field displays a description of the event Type This field displays the event type 1 Non...

Страница 131: ... view Index This field displays the index number of the event entry Description Enter a description of the event You can use 1 127 printable ASCII characters Spaces are allowed You can also leave this field blank Type Select an event type None to do nothing Log to generate a log when an associated alarm is generated Trap to generate a trap when an associated alarm is generated Log and Trap to gene...

Страница 132: ... RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Log Overview screen Event Index This field displays an event index number Event Type This field displays the action taken when this event occurred None Log Trap or Log and Trap Last Time S...

Страница 133: ...Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Log Event Index screen Log Index This field displays a log index number Log Time This field displays the time a log was generated Log Description This field displays an implementation dependent description of the event that activated this log entry Event Log Overview Click this ...

Страница 134: ...Chapter 19 RMON Lite ES 1552 User s Guide 134 ...

Страница 135: ...able is populated with MAC and corresponding IP address mappings in two different ways DHCP Snooping The switch listens to traffic from a DHCP server on a trusted port and learns IP to MAC address bindings by parsing DHCP ACK packets Static Entries The switch administrator can enter static IP to MAC address mappings via the web configurator 20 1 2 How Dynamic ARP Works When an incoming ARP packet ...

Страница 136: ...time period Trusted ports Packets arriving on trusted ports bypass all Dynamic ARP validation checks and those arriving on untrusted ports undergo the validation process Default state of all ports is untrusted Select the trusted ports for each Dynamic ARP configuration you set up Enable Dynamic ARP for VLAN from to Select the range of VLANs you want to perform validation checks based on the ARP en...

Страница 137: ...ABEL DESCRIPTION Static MAC IP binding ADD This field is only available when you enable dynamic ARP in the Dynamic ARP Settings screen Click ADD to add a static entry to the ARP table See Section 20 4 on page 137 Item This is the ARP table entry number MAC Address This is the MAC address of the device connected to the switch with the corresponding IP address below IP Address This is the learned IP...

Страница 138: ... of the network device you want to be allowed to communicate via the switch An example entry of a MAC address is 0a b1 c2 d3 e4 f5 IP Address Enter the corresponding IP address in dotted decimal notation ex 192 168 1 5 of the network device you want to be allowed to communicate via the switch VLAN ID Select the VLAN ID for this ARP entry Add Click this to save this entry to the ARP table and view ...

Страница 139: ...are problem In this case you should contact your vendor Table 70 Troubleshooting Accessing the Switch PROBLEM CORRECTIVE ACTION I cannot access the web configurator The administrator username is admin The default administrator password is 1234 The username and password are case sensitive Make sure that you enter the correct password and username using the proper casing If you have changed the pass...

Страница 140: ...ack 2 or allow pop up blocking and create an exception for your device s IP address 21 2 1 1 1 Disable pop up Blockers 1 In Internet Explorer select Tools Pop up Blocker and then select Turn Off Pop up Blocker Figure 87 Pop up Blocker You can also check if pop up blocking is disabled in the Pop up Blocker section in the Privacy tab 1 In Internet Explorer select Tools Internet Options Privacy 2 Cle...

Страница 141: ...ve this setting 21 2 1 1 2 Enable pop up Blockers with Exceptions Alternatively if you only want to allow pop up windows from your device see the following steps 1 In Internet Explorer select Tools Internet Options and then the Privacy tab 2 Select Settings to open the Pop up Blocker Settings screen ...

Страница 142: ...3 Type the IP address of your device the web page that you do not want to have blocked with the prefix http For example http 192 168 1 1 4 Click Add to move the IP address to the list of Allowed sites Figure 90 Pop up Blocker Settings 5 Click Close to return to the Privacy screen ...

Страница 143: ...rer check that JavaScripts are allowed 1 In Internet Explorer click Tools Internet Options and then the Security tab Figure 91 Internet Options 2 Click the Custom Level button 3 Scroll down to Scripting 4 Under Active scripting make sure that Enable is selected the default 5 Under Scripting of Java applets make sure that Enable is selected the default 6 Click OK to close the window ...

Страница 144: ...1 2 1 3 Java Permissions 1 From Internet Explorer click Tools Internet Options and then the Security tab 2 Click the Custom Level button 3 Scroll down to Microsoft VM 4 Under Java permissions make sure that a safety level is selected 5 Click OK to close the window Figure 93 Security Settings Java ...

Страница 145: ...2 User s Guide 145 21 2 1 3 1 JAVA Sun 1 From Internet Explorer click Tools Internet Options and then the Advanced tab 2 make sure that Use Java 2 for applet under Java Sun is selected 3 Click OK to close the window Figure 94 Java Sun ...

Страница 146: ...Chapter 21 Troubleshooting ES 1552 User s Guide 146 ...

Страница 147: ...147 PART IV Appendices and Index This part contains the following chapters Product Specifications 149 IP Addresses and Subnetting 151 Legal Information 161 Customer Support 165 Index 169 ...

Страница 148: ...148 ...

Страница 149: ...re helps prevent broadcast multicast or unknown unicast traffic from flooding your network Port Mirroring Port mirroring allows you to copy traffic going from one or all ports to another or all ports in order that you can examine the traffic from the mirror port the port you copy the traffic to without interference Link Aggregation Link aggregation trunking is the grouping of physical ports into o...

Страница 150: ... SFP fiber ports Two 10 100 1000 Base Tx ports Auto negotiation Auto MDIX Compliant with IEEE 802 3ad u x Back pressure flow control for half duplex Flow control for full duplex IEEE 802 3x Layer 2 Features Bridging 8K MAC addresses Static MAC address forwarding by destination 8 static entries Broadcast storm control Static MAC address forwarding Switching Switching fabric 12 8Gbps non blocking Ma...

Страница 151: ...rted MIB RFC1213 MIB II System RFC1213 MIB II Interface RFC1398 MIB Ether like RFC2819 Four groups of RMON history statistics alarms and events Table 74 Physical and Environmental Specifications LEDs Main switch PWR Per Gigabit port ACT 100 1000 Per mini GBIC port LNK ACT Per 100 Mbps Ethernet port LNK ACT Dimension W x D x H Standard 19 rack mountable 441 mm x 195 mm x 44 mm Device Weight 2 74 Kg...

Страница 152: ...Appendix A Product Specifications ES 1552 User s Guide 152 ...

Страница 153: ...are a common street name the hosts on a network share a common network number Similarly as each house has its own house number each host on the network has its own unique identifying number the host ID Routers use the network number to send packets to the correct network while the host ID determines to which host on the network the packets are delivered Structure An IP address is made up of four p...

Страница 154: ...IP address is part of the host ID The following example shows a subnet mask identifying the network number in bold text and host ID of an IP address 192 168 1 2 in decimal By convention subnet masks always consist of a continuous sequence of ones beginning from the leftmost bit of the mask followed by a continuous sequence of zeros for a total number of 32 bits Subnet masks can be referred to by t...

Страница 155: ...d by a continuous number of zeros for the remainder of the 32 bit mask you can simply specify the number of ones instead of writing the value of each octet This is usually specified by writing a followed by the number of bits in the mask after the address For example 192 1 1 0 25 is equivalent to saying 192 1 1 0 with subnet mask 255 255 255 128 The following table shows some possible subnet masks...

Страница 156: ...ows the company network before subnetting Figure 96 Subnetting Example Before Subnetting You can borrow one of the host ID bits to divide the network 192 168 1 0 into two separate sub networks The subnet mask is now 25 bits 255 255 255 128 or 25 The borrowed host ID bit can have a value of either 0 or 1 allowing two subnets 192 168 1 0 25 and 192 168 1 128 25 The following figure shows the company...

Страница 157: ... 1 254 Example Four Subnets The previous example illustrated using a 25 bit subnet mask to divide a 24 bit address into two subnets Similarly to divide a 24 bit address into four subnets you need to borrow two host ID bits to give four possible combinations 00 01 10 and 11 The subnet mask is 26 bits 11111111 11111111 11111111 11000000 or 255 255 255 192 Each subnet contains 6 host ID bits giving 2...

Страница 158: ...net 3 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 128 IP Address Binary 11000000 10101000 00000001 10000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address 192 168 1 128 Lowest Host ID 192 168 1 129 Broadcast Address 192 168 1 191 Highest Host ID 192 168 1 190 Table 82 Subnet 4 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1...

Страница 159: ...BITS SUBNET MASK NO SUBNETS NO HOSTS PER SUBNET 1 255 255 255 128 25 2 126 2 255 255 255 192 26 4 62 3 255 255 255 224 27 8 30 4 255 255 255 240 28 16 14 5 255 255 255 248 29 32 6 6 255 255 255 252 30 64 2 7 255 255 255 254 31 128 1 Table 85 16 bit Network Number Subnet Planning NO BORROWED HOST BITS SUBNET MASK NO SUBNETS NO HOSTS PER SUBNET 1 255 255 128 0 17 2 32766 2 255 255 192 0 18 4 16382 3...

Страница 160: ...d You don t need to change the subnet mask computed by the switch unless you are instructed to do otherwise Private IP Addresses Every machine on the Internet must have a unique address If your networks are isolated from the Internet running only between two branch offices for example you can assign any IP addresses to the hosts without problems However the Internet Assigned Numbers Authority IANA...

Страница 161: ...ftware described herein Neither does it convey any license under its patent rights nor the patent rights of others ZyXEL further reserves the right to make changes in any products described herein without notice This publication is subject to change without notice Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of ZyXEL Communications Inc Other trademarks mentioned in thi...

Страница 162: ...xpressly approved by the party responsible for compliance could void the user s authority to operate the equipment This Class A digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe A est conforme à la norme NMB 003 du Canada CLASS 1 LASER PRODUCT APPAREIL A LASER DE CLASS 1 PRODUCT COMPLIES WITH 21 CFR 1040 10 AND 1040 11 PRODUIT CONFORME SELON 21 CFR 1040 10 ET 10...

Страница 163: ...irect or consequential damages of any kind to the purchaser To obtain the services of this warranty contact ZyXEL s Service Center for your Return Material Authorization number RMA Products must be returned Postage Prepaid It is recommended that the unit be insured when shipped Any returned products without proof of purchase or those with an out dated warranty will be repaired or replaced at the d...

Страница 164: ...Appendix C Legal Information ES 1552 User s Guide 164 ...

Страница 165: ...439 Web Site www zyxel com www europe zyxel com FTP Site ftp zyxel com ftp europe zyxel com Regular Mail ZyXEL Communications Corp 6 Innovation Road II Science Park Hsinchu 300 Taiwan Costa Rica Support E mail soporte zyxel co cr Sales E mail sales zyxel co cr Telephone 506 2017878 Fax 506 2015098 Web Site www zyxel co cr FTP Site ftp zyxel co cr Regular Mail ZyXEL Costa Rica Plaza Roble Escazú Et...

Страница 166: ... Finland France E mail info zyxel fr Telephone 33 4 72 52 97 97 Fax 33 4 72 52 19 20 Web Site www zyxel fr Regular Mail ZyXEL France 1 rue des Vergers Bat 1 C 69760 Limonest France Germany Support E mail support zyxel de Sales E mail sales zyxel de Telephone 49 2405 6909 69 Fax 49 2405 6909 99 Web Site www zyxel de Regular Mail ZyXEL Deutschland GmbH Adenauerstr 20 A2 D 52146 Wuerselen Germany Hun...

Страница 167: ... U S A Norway Support E mail support zyxel no Sales E mail sales zyxel no Telephone 47 22 80 61 80 Fax 47 22 80 61 81 Web Site www zyxel no Regular Mail ZyXEL Communications A S Nils Hansens vei 13 0667 Oslo Norway Poland E mail info pl zyxel com Telephone 48 22 333 8250 Fax 48 22 333 8251 Web Site www pl zyxel com Regular Mail ZyXEL Communications ul Okrzei 1A 03 715 Warszawa Poland Russia Suppor...

Страница 168: ... support ua zyxel com Sales E mail sales ua zyxel com Telephone 380 44 247 69 78 Fax 380 44 494 49 32 Web Site www ua zyxel com Regular Mail ZyXEL Ukraine 13 Pimonenko Str Kiev 04050 Ukraine United Kingdom Support E mail support zyxel co uk Sales E mail sales zyxel co uk Telephone 44 1344 303044 08707 555779 UK only Fax 44 1344 303034 Web Site www zyxel co uk FTP Site ftp zyxel co uk Regular Mail ...

Страница 169: ... 51 bandwidth control 150 bridging 150 browser configuration 139 C cable diagnostics 87 types of faults 87 categories of events 100 certifications 161 notices 162 viewing 162 CFI Canonical Format Indicator 63 changing the password 46 Class of Service CoS 75 configuration file backup 51 restore 51 configuration saving 47 contact information 165 copyright 161 customer support 165 D default configura...

Страница 170: ...layer 2 features 150 LEDs 38 link aggregation 67 lockout 47 login 43 password 46 logs 97 adding external syslog 98 categories 100 configuration 98 external 97 Flash 97 overview 97 RAM 97 searching 100 types of events 98 viewing 99 M MAC address 135 MAC address learning 83 MAC address table 50 84 maintanence configuration backup 51 firmware 52 restoring configuration 51 Management Information Base ...

Страница 171: ...et 53 reset button 35 47 default configuration 37 resetting 47 restart 53 restoring configuration 47 51 RMON alarm group 127 event group 129 history group 122 statistics group 119 RMON Lite 119 Round Robin Scheduling 71 rubber feet 31 S safety certifications 151 safety warnings 6 save configuration 47 SCCP Skinny Client Control Protocol 93 Session Initiation Protocol SIP 93 short cable fault 87 Si...

Страница 172: ...9 start up 139 trunk group 67 trunking 28 67 150 configuration 68 distribution criterion 67 Type of Service ToS 75 V ventilation holes 32 VID 63 number of possible VIDs 63 priority frame 63 VID VLAN Identifier 63 viewing MAC entries 84 VLAN 63 150 create 65 editing 66 ID 63 status 64 tagged 63 tagged and untagged 65 W warranty 162 note 163 web configurator 43 getting help 48 home 44 49 LED panel 4...

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