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D-Link DES-3225G Series User Manual
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D-Link DES-3225G Series User Manual

D-Link DES-3225G Series User Manual

24-port fast ethernet switch
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DES-3225G Series
24-Port Fast Ethernet
Switch
User's Guide
Sixth Edition (December 2001)
651S3225G065
Printed In Taiwan
RECYCLABLE

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Summary of Contents for D-Link DES-3225G Series

  • Page 1 DES-3225G Series 24-Port Fast Ethernet Switch User’s Guide Sixth Edition (December 2001) 651S3225G065 Printed In Taiwan RECYCLABLE...

  • Page 2: Wichtige Sicherheitshinweise

    Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgfältig durch. Heben Sie diese Anleitung für den spätern Gebrauch auf. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung.

  • Page 3: Limitation Of Liability

    D-Link office within the applicable warranty period, and requesting a Return Material Authorization (RMA) number. If a Registration Card for the product in question has not been returned to D-Link, then a proof of purchase (such as a copy of the dated purchase invoice) must be provided. If Purchaser's circumstances require special handling of warranty correction, then at the time of requesting RMA number, Purchaser may also propose special procedure as may be suitable to the case.
  • Page 4 D-Link makes no warranty that operation of its software products will be uninterrupted or absolutely error-free, and no warranty that all defects in the software product, within or without the scope of D-Link's...

  • Page 5: Copyright Statement

    D-Link Offices for Registration and Warranty Service The product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you.

  • Page 7: Table Of Contents

    CONNECTING THE SWITCH...12 ... 12 WITCH TO ... 12 WITCH TO UB OR WITCH 10BASE-T Device...13 100BASE-TX Device...13 SWITCH MANAGEMENT CONCEPTS ...14 OCAL ONSOLE ANAGEMENT Diagnostic (console) port (RS-232 DCE) ...14 IP A SNMP C DDRESSES AND OMMUNITY ... 15 RAPS ...
  • Page 8 Configure VLANs & MAC-based Broadcast Domains ... 54 Configure Trunk... 75 Update Firmware and Configuration Files...76 System Utilities...77 Ping Test... 78 Save Settings to TFTP Server... 79 Save Switch History to TFTP Server... 80 SNMP Manager Configuration ...81 ... 82 WITCH ONITORING Network Monitoring ...82 Traffic Statistics ...
  • Page 9 ANAGEMENT Configure Switch ...97 IP Settings... 98 Port Settings ... 99 Port Mirroring... 100 Switch Settings ... 101 Filtering and Forwarding Table ... 103 Spanning Tree ... 110 IGMP Filtering ... 113 VLANs & MAC-based Broadcast Domains... 115 Trunk ... 123 Configure Management...
  • Page 10 This User’s Guide tells you how to install your DES-3225G Series Switch, how to connect it to your Ethernet network, and how to set its configuration using either the built-in console interface or Web-based management. Terms For simplicity, this documentation uses the terms “Switch” (first letter upper case) to refer to the DES-3225G Series 24- port NWay Ethernet Switch, and “switch”...

  • Page 11: Introduction

    24-port NWay Ethernet Switch User’s Guide NTRODUCTION This section describes the features of the Switch, as well as giving some background information about Ethernet/Fast Ethernet, Gigabit Ethernet, and switching technology. Fast Ethernet Technology The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks.

  • Page 12: Switching Technology

    Today’s switches are an ideal solution to most kinds of local area network congestion problems. Features The DES-3225G Switch was designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously. Switch features include:...

  • Page 13: Performance Features

    Ethernet modules operate at full duplex only while the 1000BASE-T Gigabit Ethernet module can also operate in half-duplex mode when auto negotiate is selected. Full duplex allows the switch port to simultaneously transmit and receive data, and only works with connections to full-duplex capable end stations and switches. Connections to hubs must take place at half duplex.

  • Page 14: Unpacking And Setup

    Four rubber feet with adhesive backing One AC power cord This User’s Guide with Registration Card If any item is found missing or damaged, please contact your local D-Link reseller for replacement. Installation Use the following guidelines when choosing a place to install the Switch: The surface must support at least 3 kg.

  • Page 15: Rack Installation

    Rack Installation The DES-3225G can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with other equipment. To install, attach the mounting brackets on the switch’s side panels (one on each side) and secure them with the screws provided.

  • Page 16: Power On

    Power on The DES-3225G switch can be used with AC power supply 100 - 240 VAC, 50/60 Hz. The Switch’s power supply will adjust to the local power source automatically and may be used without having any or all LAN segment cables connected.

  • Page 17: Identifying External Components

    Two MDI-II Uplink jacks which can be used to connect a straight-through cable to a normal (non-Uplink) port on a switch or hub. Do not use port 1X if the top Uplink port is occupied or Port 2X if the bottom Uplink port is occupied.

  • Page 18: Side Panels

    Optional Plug-in Modules The DES-3225G 24-port NWay Ethernet Switch is able to accommodate a range of plug-in modules in order to increase functionality and performance. Figure 3-4. Side panel views of the Switch 24-port NWay Ethernet Switch User’s Guide...

  • Page 19: 100Base-Tx Module

    24-port NWay Ethernet Switch User’s Guide 100BASE-TX Module Two-port, front-panel module. Connects to 100BASE-TX devices at full- or half-duplex. Supports Category 5 UTP or STP cable connections of up to 100 meters. 100BASE-FX (SC) Fiber Module Figure 3-6. One-port, 100BASE-FX (SC) module One-port, front-panel module.

  • Page 20: 1000Base-Sx Gigabit Module

    Connects to 1000BASE-LX devices at full duplex or auto (auto negotiation is available in DES-3251GL, version A3 and later). Figure 3-8. One-port, 1000BASE-SX module 62.5 m 62.5 m 2.33 2.53 Figure 3-9. One-port, 1000BASE-LX module 24-port NWay Ethernet Switch User’s Guide 50 m 50 m 3.25 3.43 Identifying External Components...

  • Page 21: 1000Base-T Copper Gigabit Module

    Power This indicator on the front panel should be colored amber during the Power-On Self Test (POST). It will light green approximately 2 seconds after the switch is powered on to indicate the ready state of the device. The LED will blink green while downloading new software for the switch, or if the system’s configuration has changed and will...

  • Page 22: Connecting The Switch

    5 UTP or STP cabling for 100 Mbps Fast Ethernet connections). The end node should be connected to any of the twenty-two ports (1x - 22x) of the DES-3225G or to either of the two 100BASE-TX ports on the front-panel module that came preinstalled on the switch.

  • Page 23: 10Base-T Device

    If the other device does not have an unused Uplink port, make the connection with a normal straight-through cable from one of the Uplink ports on the switch to any normal crossed port on the hub. Alternatively, if you have a crossover cable you can save the Uplink ports for other connections and make this one from a crossed port to another crossed port.

  • Page 24: Switch Management Concepts

    Configuring the switch to implement these concepts is discussed in detail in the next chapters. Local Console Management Local console management involves the administration of the DES-3225G Switch via a direct connection to the RS-232 DCE console port. This is an Out-Of-Band connection, meaning that it is on a different circuit than normal network communications, and thus works even when the network is down.

  • Page 25: Ip Addresses And Snmp Community Names

    For security, you can set in the Switch a list of IP Addresses of the network managers that you allow to manage the Switch. You can also change the default Community Name in the Switch and set access rights of these Community Names.

  • Page 26: Mibs

    Example: if Port 1 receives a packet destined for a station on Port 2, the Switch transmits that packet through Port 2 only, and transmits nothing through the other ports.

  • Page 27: Filtering Database

    STA operates on two levels: the bridge level and the port level. On the bridge level, STA calculates the Bridge Identifier for each Switch, then sets the Root Bridge and the Designated Bridges. On the port level, STA sets the Root Port and Designated Ports.

  • Page 28: On The Bridge Level

    Root Path Cost, the switch with the lowest Bridge Identifier becomes the Designated Bridge. Root Path Cost The Root Path Cost of a switch is the sum of the Path Cost of the Root Port and the Root Path Costs of all the switches that the packet goes through.

  • Page 29: Illustration Of Sta

    Illustration of STA A simple illustration of three Bridges (or the Switch) connected in a loop is depicted in Figure 5-1. In this example, you can anticipate some major network problems if the STA assistance is not applied. For instance, if Bridge 1 broadcasts a packet to Bridge 2, Bridge 2 will broadcast it to Bridge 3, and Bridge 3 will broadcast it to Bridge 1...and so on.

  • Page 30: Port Trunking

    The DES-3225G supports 3 trunk groups, which may include from 2 to 8 switch ports each, except for the third trunk group which consists of the 2 ports of the Slot 1, 100BASE-TX or 100BASE-FX front-panel module. The master port for the first group is preset as port 7, the master port for the second group is port 15 and the master port for the third group is the first port (1x) on the 2-port module.

  • Page 31: Vlans And Broadcast Domains

    Figure 5-3. Port trunking example The switch treats all ports in a trunk group as a single port. As such, trunk ports will not be blocked by Spanning Tree. Data transmitted to a specific host (destination address) will always be transmitted over the same port in a trunk group.

  • Page 32: Mac-Based Broadcast Domains

    VLAN 2 (and can therefore receive VLAN 2 packets). If port 10 is not a member of VLAN 2, then the packet will be dropped by the Switch and will not reach its destination. If Port 10 is a member of VLAN 2, the packet will go through.

  • Page 33: Sharing Resources Across 802.1Q Vlans

    24-port NWay Ethernet Switch User’s Guide Sharing Resources Across 802.1Q VLANs Network resources such as printers and servers however, can be shared across 802.1Q VLANs. This is achieved by setting up overlapping VLANs as shown in the diagram below. Figure 5-4. Example of typical VLAN configuration In the above example, there are three different 802.1Q VLANs and each port can transmit packets on one of them...
  • Page 34 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. If an egress port is connected to an 802.1Q-compliant device, tagging should be enabled so the other device can take VLAN data into account when making forwarding decisions (this allows VLANs to span multiple switches).

  • Page 35: Port-Based Vlans

    However, with the advent of VLANs, switches are now able to limit broadcast domains better and cheaper than routers. Also, many switches, including the DES-3225G series, have broadcast sensors and filters built into each port to further control broadcast storms.

  • Page 36: Segmenting Broadcast Domains

    SNMP agent can remove the blocking condition, returning the port to its normal operational state. In the Switch, the default rising threshold is met when more than 500 broadcast packets per second are being detected on a specified port. Once the rising threshold is surpassed for a duration of more than 5 seconds, it will trigger the broadcast storm rising action configured by the user.

  • Page 37: Using The Console Interface

    SING THE Your 24-port NWay Ethernet Switch supports a console management interface that allows you to set up and control your Switch, either with an ordinary terminal (or terminal emulator), or over the network using the TCP/IP Telnet protocol. You can use this facility to perform many basic network management functions.

  • Page 38: Connecting To The Switch Using Telnet

    Connecting to the Switch Using Telnet Once you have set an IP address for your Switch, you can use a Telnet program (in a VT-100 compatible terminal mode) to access and control the Switch. Most of the screens are identical, whether accessed from the console port or from a Telnet interface.
  • Page 39 24-port NWay Ethernet Switch User’s Guide Figure 6-2. Initial screen, first time connecting to the Switch Note: There is no initial username or password. Leave the Username and Password fields blank. Press <Enter> or <Return> in the Username and Password fields. You will be given access to the main menu shown below: Figure 6-3.

  • Page 40: User Accounts Management

    Saving Changes The DES-3225G has two levels of memory normal RAM and non-volatile or NV-RAM. Settings need to be changed in all screens by clicking on the Apply button. When this is done, the settings will be immediately applied to the switching software in RAM, and will immediately take effect.

  • Page 41: Logging Onto The Switch Console By Registered Users

    After the settings have been saved to NV-RAM, they will become the default settings for the switch, and they will be used by the switch every time it is powered on, reset or rebooted. The only exception to this is a factory reset, which will clear all settings and restore them to their initial values listed in Appendix D, which were present when the switch was purchased.
  • Page 42 24-port NWay Ethernet Switch User’s Guide Figure 6-5. User Accounts Management menu 1. Choose Create/Modify User Accounts. The following screen appears: Figure 6-6. Add/Modify User Accounts screen Using the Console Interface...

  • Page 43: View/Delete User Accounts

    24-port NWay Ethernet Switch User’s Guide 2. Type in your Username and press <Enter>. 3. If you are a new user, type in the Old Password and press <Enter>. 4. Type in the New Password you have chosen, and press <Enter>. Type in the same new password in the following field to verify that you have not mistyped it.

  • Page 44: Setting Up The Switch

    Configuration Files, Save Changes, and System Utilities menus and their respective sub-menus. Configuration Choose Configuration to access the first item on the DES-3225G main menu. The following menu appears: Figure 6-8. Configuration menu You will need to change some settings to allow you to be able to manage the Switch from an SNMP-based Network Management System such as SNMP v1 or to be able to access the Switch using the Telnet protocol.
  • Page 45 BOOTP broadcast request when it is powered up. The BOOTP protocol allows IP addresses, network masks, and default gateways to be assigned by a central BOOTP server. If this option is set, the Switch will first look for a BOOTP server to provide it with this information before using the supplied settings. If DHCP is chosen, a Dynamic Host Configuration Protocol request will be sent when the Switch is powered up.

  • Page 46: Configure Console

    Console port type settings. 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 for out-of-band (SLIP) management; it does not apply when the port is used for the console port.

  • Page 47: Configure Switch

    24-port NWay Ethernet Switch User’s Guide Configure Switch The Switch Configuration screen shows various pieces of information about your Switch, and allows you to set the System Name, System Location, and System Contact. These settings can be retrieved from the Switch using SNMP requests, allowing these settings to be used for network management purposes.

  • Page 48: Configure Ports

    If a port is partitioned, the Switch can only transmit data, not receive it. Head Of Line (HOL) Blocking Prevention Enables or disables Head-Of-Line 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.
  • Page 49 It 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.

  • Page 50: Configure Slot1 Module

    (which comprise significant traffic) to be let through as early as possible, while being low enough so that broadcast storms are completely eliminated. Press APPLY to let the changes take effect. If you wish these changes to be the default for the switch, return to the main menu and choose Save Changes.
  • Page 51 24-port NWay Ethernet Switch User’s Guide Port Field specifies either S1P1, the Port 1x port or S1P2, the Port 2x port on the module. For single-port modules, only S1P1 will be available. State Enables or disables this port. Speed/Duplex Selects the desired Speed and Duplex fort the port. Possible settings include: Auto, 100M/Full, 100M/Half, 10M/Full, or 10M/Half.

  • Page 52: Configure Slot2 Module

    1000M/Full or Auto. If a 1000BASE-T module is used, this field will offer the following choices: 1000M/Full, 100M/Full, 100M/Half, and Auto. Please note that DES-3251G/GL version A2 supports 1000M/Full only. Version A3 supports 1000M/Full and Auto. Figure 6-15. Slot2-Port Configuration screen 24-port NWay Ethernet Switch User’s Guide Using the Console Interface...

  • Page 53: Configure Port Mirroring

    Configure Port Mirroring The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port. You can attach a monitoring device to the mirrored port, such as a sniffer or an RMON probe, to view details about the packets passing through the first port.

  • Page 54: Configure Spanning Tree Protocol

    Parameters allow you to change the behind the scene parameters of the Spanning Tree Algorithm at the bridge level. The parameters for this section have been fully explained in Chapter 5’s Switch Management Concepts, see STA Operation Levels: On the Bridge level, and User-Changeable Parameters. It is recommended that you read these sections, as well as the introductory section in the same chapter entitled Spanning Tree Algorithm before changing any of the parameters.
  • Page 55 24-port NWay Ethernet Switch User’s Guide Figure 6-17. Configure Spanning Tree Protocol menu 2. Choose STP Parameter Setting to access the following screen: Figure 6-18. STP Parameters Setting screen Using the Console Interface...
  • Page 56 BPDU packets sent by the Root Bridge to tell all other switches that it is indeed the Root Bridge. If you set a Hello Time for your Switch, and it is not the Root Bridge, the set Hello Time will be used if and when your Switch becomes the Root Bridge.

  • Page 57: Configure Filtering And Forwarding Table

    Configure Filtering and Forwarding Table When a packet hits the Switch, it looks in the filtering and forwarding table to decide what to do with the packet; either to filter it off the network, or to forward it through the port on which its destination lies.
  • Page 58 The Configure Filtering and Forwarding Table screen allows you to allows you to stop or start address learning, change the way the Switch treats MAC address table entries, and select an age-out time of the MAC address in the selected address table. This screen also permits you to access three additional configuration screens from the menu at the bottom of the screen.
  • Page 59 Action Choose to Add or Remove an entry from the table. MAC Address A total of ten destination addresses per page will be seen. The Switch can hold up to 96 entries. This is the MAC address of the device that you are creating a permanent forwarding address for.

  • Page 60: Configure Igmp Filtering

    Switch and an IGMP-enabled device hosting IGMP on your network. When enabled for IGMP snooping, the Switch can open or close a port to a specific Multicast group member based on IGMP messages sent from the device to the IGMP host or vice versa.
  • Page 61 IP Multicast Filtering Age-out Timer(30-9999) When this timer expires and the Switch has not observed (snooped) any IGMP query packets asking whether any stations belong to any Multicast groups, the Switch itself will send out queries and become the IGMP host on your network.
  • Page 62 Figure 6-24. IEEE 802.1Q IGMP Configuration screen Choosing Add/Remove IGMP Control Table allows you to define up to 12 VLANs on the Switch which can send and receive IGMP packets. Choosing Configure IGMP Control Table allows you to enable or disable these agents, and set aging timers for them.
  • Page 63 The above screen is used to specify an agent 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 12 agents can exist on the Switch at any one time.

  • Page 64: Configure Vlans & Mac-Based Broadcast Domains

    Mode (three of the four are displayed and explained below—the menu for None is omitted as it does not contain additional menu items at the bottom of the screen). Please note that the Switch can only support a single type of mode at any given time.
  • Page 65 24-port NWay Ethernet Switch User’s Guide 2. Select MAC-based Broadcast Domains under Restart Mode and then press APPLY. 3. Press RESTART on the Change VLAN Mode screen (pictured below). This will cause the Switch to automatically save changes and then perform a reboot.
  • Page 66 MAC Address in the next field, and then press APPLY. Note that once all additions and changes have been completed, you must restart the Switch for the MAC-based Broadcast Domains to be implemented. To access the MAC-based Broadcast Domains Configuration menu, open Configuration, choose Configure VLANs &...
  • Page 67 24-port NWay Ethernet Switch User’s Guide Figure 6-29. MAC-based Broadcast Domains Configuration menu Choose Add/Remove MAC-based Broadcast Domain to access the following screen: Using the Console Interface...
  • Page 68 Broadcast Domains and Number of Members reflect the current conditions. They are read-only fields and cannot be changed. Choose Add/Remove MAC-based Broadcast Domain Member from the MAC-based Broadcast Domains Configuration menu to access the following screen: 24-port NWay Ethernet Switch User’s Guide Using the Console Interface...
  • Page 69 24-port NWay Ethernet Switch User’s Guide Figure 6-31. the first Add/Remove MAC-based Broadcast Domain Members screen To configure a MAC-based Broadcast Domain member, highlight the desired entry on the screen above and press <Enter>. The following screen appears: Using the Console Interface...
  • Page 70 1. Choose Configure VLANs & MAC-based Broadcast Domains on the Configuration menu. 2. Select Port-Based VLANs under Restart Mode and then press APPLY. 3. Press RESTART on the Change VLAN Mode screen. This will cause the Switch to automatically save changes and then perform a reboot.
  • Page 71 24-port NWay Ethernet Switch User’s Guide Figure 6-33. VLANs & MAC-based Broadcast Domains Configuration menu for Port-Based VLANs Choose Configure Port-Based VLAN on the screen above to access the Configure VLAN (Port-Based) menu: Using the Console Interface...
  • Page 72 24-port NWay Ethernet Switch User’s Guide Figure 6-34. Configure VLAN (Port-Based) menu To create a Port-based VLAN, select Add a Port-Based VLAN on the screen above and then press APPLY. The following screen appears: Using the Console Interface...
  • Page 73 24-port NWay Ethernet Switch User’s Guide Figure 6-35. Create a Port-based VLAN screen Enter a name for your new VLAN in the VLAN Name field at the top of the screen above. Next, select which ports will become members of the VLAN by toggling between Yes and No in the Member column. Click APPLY to let the changes immediately take effect.
  • Page 74 24-port NWay Ethernet Switch User’s Guide Figure 6-36. Edit/Delete a Port-based VLAN screen After selecting Edit or Delete in the Action field, choose a VLAN from the list on the right-side of the screen above and then press <Enter>. Using the Console Interface...
  • Page 75 VLAN. This is normally used to keep untagged frames off the Switch, although it can have other uses as well. This setting is configurable for each port in the Configure Port Ingress Filter screen.
  • Page 76 1. Choose Configure VLANs & MAC-based Broadcast Domains on the Configuration menu. 2. Select IEEE 802.1Q VLANs under Restart Mode and then press APPLY. 3. Press RESTART on the Change VLAN Mode screen. This will cause the Switch to automatically save changes and then perform a reboot.
  • Page 77 Management Vid 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 except through the console port.
  • Page 78 24-port NWay Ethernet Switch User’s Guide Figure 6-40. Ingress Filtering screen This screen allows you to enable or disable Ingress filtering for each port. When a packet arrives at the port and Ingress filtering is Enabled, the port will check the VLAN ID number of the packet, and its own VIDs. If there is a match, the port will receive the packet.
  • Page 79 24-port NWay Ethernet Switch User’s Guide Figure 6-41. Port VLAN assignment screen This screen allows you to set a Port VLAN ID number (PVID) for each port. Press APPLY to let the changes take effect. Choose Configure Static VLAN Entry to access the third item on the IEEE 802.1Q VLANs Configuration menu.
  • Page 80 VLAN Name, and Tag/Untag and Egress (membership) status for all ports. Choose Configure Port GVRP Settings to access the fourth item on the IEEE 802.1Q VLANs Configuration menu. The following GVRP Configuration screen appears: 24-port NWay Ethernet Switch User’s Guide Using the Console Interface...
  • Page 81 GVRP updates dynamic VLAN registration entries and communicates the new VLAN information across the network. This allows, among other things, for stations to physically move to other switch ports and keep their same VLAN settings, without having to reconfigure VLAN settings on the Switch.
  • Page 82 24-port NWay Ethernet Switch User’s Guide Figure 6-44. the first GMRP Configuration screen The Switch GMRP field allows you to either enable or disable GMRP on the Switch by toggling between the two choices and then pressing APPLY to let the change take effect.
  • Page 83 24-port NWay Ethernet Switch User’s Guide Figure 6-45. the second GMRP Configuration screen Configure Static Multicast Forwarding Multicast forwarding allows you to forward traffic over each port for one multicast group. To access the first version of the Static Multicast Forwarding Table (when IEEE 802.1Q VLANs is selected on the VLANs &...
  • Page 84 VLAN. A dash means the port is not given VLAN membership for the VID entered above. An F forbids the port from joining a VLAN dynamically. State Choose how you want the Switch to deal with the newly created Static Multicast Forwarding table entry: Delete on Reset, Delete on Timeout, Invalid, or Permanent.

  • Page 85: Configure Trunk

    APPLY to put the changes into effect. Configure Trunk Ports on the Switch can be grouped together in a single logical port called a trunk. This is discussed in detail in the Port Trunking section of the Switch Management Concepts chapter of this manual.

  • Page 86: Update Firmware And Configuration Files

    Update Firmware and Configuration Files The Switch is capable of obtaining its configuration settings (the same settings defined in this console program), as well as updated versions of its internal switching software (the console program itself), using TFTP (Trivial File Transfer Protocol).

  • Page 87: System Utilities

    TFTP Server Address configuration file is located. This entry is used only if the Firmware Update is set to Enabled. Firmware Update Determines whether or not the Switch will try to look for a runtime image file on the TFTP server.

  • Page 88: Ping Test

    24-port NWay Ethernet Switch User’s Guide Figure 6-49. Utilities menu Ping Test Choose Ping Test to access the following screen: Using the Console Interface...

  • Page 89: Save Settings To Tftp Server

    The fields you can set are: Destination IP Address The IP address of the device to be Pinged. Repetitions Amount of times the Switch should send the Ping (1-255). If zero is chosen, the Switch will continue Pinging indefinitely. In the lower part of the Ping Test screen, you can view the Ping status, including Result, Reply, Time out, and Unreachable.

  • Page 90: Save Switch History To Tftp Server

    Figure 6-51. Save Settings to TFTP Server screen The fields you can set are: Server IP Address The IP address of the TFTP server where you wish to save the settings for the switch. File Name The complete path and filename for the file.

  • Page 91: Snmp Manager Configuration

    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 traps to be routed to up to four different network management hosts.

  • Page 92: Switch Monitoring

    The Switch uses an SNMP agent which monitors different aspects of network traffic. The SNMP agent keeps counters and statistics on the operation of the Switch itself, and on each port on the Switch. The statistics obtained can be used to monitor the conditions and general efficiency of the Switch.

  • Page 93: Traffic Statistics

    24-port NWay Ethernet Switch User’s Guide Choose Network Monitoring from the main menu. The following menu appears: Figure 6-54. Network Monitoring menu The first item on this menu permits you to access four different tables that observe the condition of each individual port.
  • Page 94 24-port NWay Ethernet Switch User’s Guide Figure 6-55. Traffic Statistics menu Statistics Overview To access the first item on the Traffic Statistics menu, choose Statistics Overview. The following table appears: Using the Console Interface...
  • Page 95 24-port NWay Ethernet Switch User’s Guide Select the desired increment setting in the Polling Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend. Pressing CLEAR COUNTER resets the counters on this screen. The statistic counters displayed are defined as follows: TX/sec The number of good bytes sent from the respective port per second.
  • Page 96 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. Figure 6-57. Port Traffic Statistics screen 24-port NWay Ethernet Switch User’s Guide Using the Console Interface...
  • Page 97 24-port NWay Ethernet Switch User’s Guide Port Packet Error Statistics To access the third item on the Traffic Statistics menu, choose Port Packet Error Statistics. The following table appears: Select the desired setting in the Ports field: 1 to 4, 5 to 8, 9 to 12, 13 to 16, 17 to 20, 21-S1P2, or Slot 2 and the desired increment setting in the Polling Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend.
  • Page 98 Dropped Frames The number of frames which are dropped by this port since the last Switch reboot. Undersize Frames The number of frames detected that are less than the minimum permitted frame size of 64 bytes and have a good CRC. Undersize frames usually indicate collision fragments, a normal network occurrence.

  • Page 99: Browse Address Table

    Browse Address Table The Browse Address Table allows the user to view which Switch port(s) a specific network device uses to communicate on the network. You can sort this table by MAC address, port, or VLAN. This is useful for viewing which ports one device is using, or which devices are using one port.

  • Page 100: Browse Igmp Status

    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.

  • Page 101: Browse Gvrp Status

    Queries(TX) The number of IGMP requests sent by the Switch. Queries(RX) The number of IGMP requests that have arrived at a Switch port. Reports The number of notifications sent from each station to the IGMP host, signifying that the station is still (or wants to be) part of a multicast group.

  • Page 102: Switch History

    Switch History The Network Monitoring menu allows the user to view the Switch history. This works like a trap and event receiver except it only captures trap/events generated by the Switch itself. For example, the switch history includes when the system is rebooted, when a console session is timed out, when a new link is established, and when configuration is save to flash memory.

  • Page 103: Resetting The Switch

    You can use the console interface to reset the Switch, either performing a Restart System (which restarts the Switch and is identical to powering the Switch off and on again), or a Factory Reset (which sets all of the Switch’s parameters to what they were when the Switch was purchased).

  • Page 104: Factory Reset

    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.

  • Page 105: Logout

    To exit the console program, choose Logout from the main menu. Make sure you have performed a Save Changes if you have made changes to the settings and wish them to become defaults for the Switch. After logging out, you will be returned to the opening login screen.

  • Page 106: Web-Based Network Management

    ANAGEMENT Introduction The DES-3225G offers an embedded Web-based (HTML) interface allowing users to manage the Switch from anywhere on the network through a standard browser, such as Netscape Navigator/ Communicator or Microsoft Internet Explorer. The Web browser acts as a universal access tool and can communicate directly with the Switch using the HTTP protocol. Your browser window may vary with the screen shots (pictures) in this guide.

  • Page 107: Configure Switch

    24-port NWay Ethernet Switch User’s Guide Clicking on this button causes an interactive view of the Switch’s front panel to be shown in the top portion of the window. Clicking on one of the Ports opens a configuration window for that particular port.

  • Page 108: Ip Settings

    IP Settings This window is used to determine whether the Switch should get its IP Address settings from the user ( M anual), a BOOTP server, or a DHCP server. If you are not using either BOOTP or DHCP, enter the IP Address, Subnet Mask, and Default Gateway of the Switch.

  • Page 109: Port Settings

    24-port NWay Ethernet Switch User’s Guide Port Settings Select the port you want to configure by clicking on the port in the Switch front panel display at the top of the window. Follow these steps: 1. Enable or disable the port. If you choose Disabled, devices connected to that port cannot use the Switch, and the Switch purges their addresses from its address table after the MAC address aging time elapses.

  • Page 110: Port Mirroring

    8. The STP Port State read-only field indicates the status of the Spanning Tree Protocol, e.g. Forwarding. 9. Click Apply to let your changes take effect. To see all the ports on the Switch rather than just an individual port, click View All Ports at the bottom of the window.

  • Page 111: Switch Settings

    24-port NWay Ethernet Switch User’s Guide The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port. You can attach a monitoring device to the mirrored port, such as a sniffer or an RMON probe, to view details about the packets passing through the first port.
  • Page 112 PROM version Version number for the firmware chip. This information is needed for new runtime software downloads. Firmware version Version number of the firmware installed on the Switch. This can be updated by using the Update Firmware window in the Reset and Update section.

  • Page 113: Filtering And Forwarding Table

    Filtering and Forwarding Table When a packet hits the Switch, it looks in the filtering and forwarding table to decide what to do with the packet; either to filter it off the network, or to forward it through the port on which its destination lies.
  • Page 114 Lock Address Table (Stops learning new address) Mostly used for security purposes, when the forwarding table is locked the Switch will no longer learn the MAC addresses for new hosts. If your network configuration doesn’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.
  • Page 115 24-port NWay Ethernet Switch User’s Guide Figure 7-8. Add/Modify Static Forwarding Table Entry window To use the static forwarding function, check either the Add/Modify to the table option button or the Delete from the table option button, enter the MAC address of the device to which the specified port permanently forwards traffic in the Destination MAC Address field, enter a VLAN ID number in the second field, and enter the port number that permanently forwards traffic from the specified device in the Destination Port Number field.
  • Page 116 MAC address filtering allows you to designate MAC addresses and VLANs which will be filtered from sending packets to the Switch. Please note that when a mode other than IEEE 802.1Q VLANs is selected, the only column that will appear on the table above is MAC Address.
  • Page 117 24-port NWay Ethernet Switch User’s Guide Figure 7-10. Add/Modify MAC Address Filtering Table Entry window To use the MAC address filtering function, check either the Add/Modify to the table option button or the Delete from the table option button, enter the MAC address and the VLAN ID of the device being filtered in the two fields offered (the Vid (1..4094) field will only be displayed when the IEEE 802.1Q VLANs mode has been selected), and then...
  • Page 118 Static Multicast Forwarding Figure 7-11. Static Multicast Forwarding Table window This function 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. Click the pointer icon on the right side of the table to access the Add / Modify Static Multicast Forwarding...
  • Page 119 Vid This is the VLAN that will be defined on this screen. Note a VLAN ID is from 1 to 4094. Allow dynamic updates via IGMP Snooping Enable this function to tell the switch how to deal with the newly-created Static Multicast Forwarding table entry.

  • Page 120: Spanning Tree

    MAC Address Displays the MAC address of the switch acting as the root bridge. Path Cost Displays the cost for the path between the Switch and the root bridge. If the Switch is the root bridge, then the path cost is zero.
  • Page 121 24-port NWay Ethernet Switch User’s Guide Port Displays the port (on the switch) that offers the least path cost from the bridge to the root bridge. In the event of a network loop, data packets will pass through the port specified here.
  • Page 122 BPDU packets sent by the Root Bridge to tell all other switches that it is indeed the Root Bridge. If you set a Hello Time for your Switch, and it is not the Root Bridge, the set Hello Time will be used if and when your Switch becomes the Root Bridge.

  • Page 123: Igmp Filtering

    Internet Group Management Protocol (IGMP) snooping allows the Switch to recognize IGMP queries and reports sent between network stations or devices and an IGMP host. When enabled for IGMP snooping, the Switch can open or close a port to a specific device based on IGMP messages passing through the switch.
  • Page 124 IP Multicast Filtering Age-out Timer When this timer elapses, the switch itself will try to become the IGMP host. IP Multicast Filtering (IGMP Snooping) This setting allows the switch to learn the IGMP spanning tree and intelligently forward packets (as opposed to broadcasting all packets). IGMP snooping is automatically enabled/disabled with this setting.

  • Page 125: Vlans & Mac-Based Broadcast Domains

    VLAN ID This is the VLAN that will be defined on this screen. Note a VLAN ID is from 1 to 4094. Age-out Timer Specifies the time in seconds the switch will wait before trying to host IGMP on the VLAN.
  • Page 126 Management Vid (1..4094) When IEEE 802.1Q VLANs or Port-based VLAN 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 except through the console port.
  • Page 127 24-port NWay Ethernet Switch User’s Guide Configure IEEE 802.1Q VLANs Figure 7-19. Default Port VLAN Assignment window Use this window to assign a Port VLAN ID (PVID) number for each port. Click Apply to let the settings take effect. Please note that this function only applies to IEEE 802.1Q VLANs mode.
  • Page 128 24-port NWay Ethernet Switch User’s Guide Figure 7-20. Ingress Filtering Check window Use this window to enable or disable the ingress filtering check for each desired port. Ingress filtering means that a receiving port will check to see if it is a member of the VLAN ID in the packet before forwarding the packet. Click Apply to let the settings take effect.
  • Page 129 24-port NWay Ethernet Switch User’s Guide Figure 7-21. Configure IEEE 802.1Q VLANs window Please note that this function only applies to IEEE 802.1Q VLANs mode. Click the pointer icon on the right side to access the Configure IEEE 802.1Q VLANs Entry window:...
  • Page 130 24-port NWay Ethernet Switch User’s Guide Figure 7-22. Configure IEEE 802.1Q VLANs Entry window To configure an 802.1Q VLAN entry, check the desired option in the first two lines of the window above and enter a V-Id number and Description. Next, either check the Untag option, or leave it unchecked for each member port you wish to be a Tagging port.
  • Page 131 GVRP updates dynamic VLAN registration entries and communicates the new VLAN information across the network. This allows, among other things, for stations to physically move to other switch ports and keep their same VLAN settings, without having to reconfigure VLAN settings on the Switch.
  • Page 132 24-port NWay Ethernet Switch User’s Guide Figure 7-24. GMRP Configuration window This window allows you to either enable or disable GMRP on a specific port. Press APPLY to let your changes take effect. Web-Based Network Management...

  • Page 133: Trunk

    Trunk Figure 7-25. Configure Port Trunking window The Switch supports up to 3 trunk groups. Trunks are groups of ports that are banded together to form a single, logical, high-bandwidth data pipe. Items in the above window are defined as follows: Name The user-assigned name of the trunk group.

  • Page 134: Traps And Community Strings

    The Trap Receiving Stations information is described as follows: IP Address The IP address of the trap receiving station. Status Option to set the trap receiving station to Enabled or Disabled. Community String A user-defined SNMP community name. 24-port NWay Ethernet Switch User’s Guide Web-Based Network Management...

  • Page 135: User Accounts

    24-port NWay Ethernet Switch User’s Guide User Accounts Figure 7-27. first User Accounts window Click the pointer icon on the right side to access the main User Accounts window: Web-Based Network Management...
  • Page 136 24-port NWay Ethernet Switch User’s Guide Figure 7-28. second User Accounts window To add or delete 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.

  • Page 137: Console Port Settings

    Time Out field (2 minutes, 5 minutes, 10 minutes, 15 minutes or Never). If SLIP is being used, you may also set the Baud Rate in the last field. Click Apply and then reboot the Switch for console port settings to take effect.

  • Page 138: Monitor

    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 for out-of-band (SLIP) management; it does not apply when the port is used for the console port.

  • Page 139: Port Statistics

    The port statistics shown by default are those for the port you last configured. Once in the Port Statistics windows, you can click any port on the switch graphic to show statistics for that port. Click the Reset Counter button at the bottom of the window to clear the counters.
  • Page 140 Fragments The number of packets less than 64 bytes with either bad framing or an invalid CRC. These are normally the result of collisions. Jabber The number of frames with length more than 1536 bytes and with CRC error or misalignment (bad framing). 24-port NWay Ethernet Switch User’s Guide Web-Based Network Management...
  • Page 141 This may indicate noise on the line. Dropped Frames The number of frames which are dropped by this port since the last Switch reboot. Undersize Frames The number of frames detected that are less than the minimum permitted frame size of 64 bytes and have a good CRC.
  • Page 142 24-port NWay Ethernet Switch User’s Guide 65-127 The total number of packets (including bad packets) received that were between 65 and 127 octets in length inclusive (excluding framing bits but including FCS octets). 128–255 The total number of packets (including bad packets) received that were between 128 and 255 octets in length inclusive (excluding framing bits but including FCS octets).
  • Page 143 24-port NWay Ethernet Switch User’s Guide Utilization Figure 7-34. Port Utilization Graph window The information is described as follows: Last Detected Source Address MAC address of the last device that sent packets over this port. Web-Based Network Management...

  • Page 144: Browse Address Table

    24-port NWay Ethernet Switch User’s Guide Browse Address Table Figure 7-35. MAC Address Table window The first selection on the Browse Address Table menu in the window on the left is None. This allows you to display a table containing MAC addresses, VLANs, ports, and respective learned statuses. Clicking the Next Page hyperlink at the bottom of the window will allow you to display the complete MAC Address Table.
  • Page 145 24-port NWay Ethernet Switch User’s Guide Figure 7-36. MAC Address Table – MAC address window The second selection on the Browse Address Table menu in the window on the left is MAC Address. This allows you to display a table containing MAC addresses, VLANs, ports, and respective learned statuses. Clicking the Next Page hyperlink at the bottom of the window will allow you to display the complete MAC Address Table.
  • Page 146 24-port NWay Ethernet Switch User’s Guide Figure 7-37. MAC Address Table – Port window The third selection on the Browse Address Table menu in the window on the left is Port. This allows you to display a table containing MAC addresses, VLANs, ports, and respective learned statuses. Clicking the Next Page hyperlink at the bottom of the window will allow you to display the complete MAC Address Table.
  • Page 147 24-port NWay Ethernet Switch User’s Guide Figure 7-38. MAC Address Table – VLAN window The fourth selection on the Browse Address Table menu in the window on the left is VLAN. This allows you to display a table containing MAC addresses, VLANs, ports, and respective learned statuses. Clicking the Next Page hyperlink at the bottom of the window will allow you to display the complete MAC Address Table.

  • Page 148: Browse Igmp Status

    24-port NWay Ethernet Switch User’s Guide Browse IGMP Status Figure 7-39. Browse IGMP Status window This window allows you to display Multicast Group, MAC Address, Queries (TX), Queries (RX), Reports, and Ports for IGMP Snooping in a table format. Web-Based Network Management...

  • Page 149: Browse Gvrp Status

    24-port NWay Ethernet Switch User’s Guide Browse GVRP Status Figure 7-40. GVRP Status window This window offers various pieces of information pertaining to GVRP status. Web-Based Network Management...

  • Page 150: Browse Gmrp Status

    24-port NWay Ethernet Switch User’s Guide Browse GMRP Status Figure 7-41. GMRP Status window This window offers various pieces of information pertaining to GMRP status. Web-Based Network Management...

  • Page 151: Switch History

    Switch History The Switch can record event information in its own logs, to designated SNMP trap receiving stations, and to the PC connected to the console manager. Clicking the Next Page hyperlink at the bottom of the window will allow you to display all the Switch Trap Logs.

  • Page 152: Reboot Switch

    24-port NWay Ethernet Switch User’s Guide Reboot Switch Figure 7-43. Reboot the Switch window To perform a reboot of the Switch, which resets the system, click the Reboot Now button. Web-Based Network Management...

  • Page 153: Reset To Factory Default

    24-port NWay Ethernet Switch User’s Guide Reset to Factory Default Figure 7-44. Reset to Factory Default window A remote reset returns the Switch to the initial parameters set at the factory. Click the Reset to Factory Default to reset the Switch. Web-Based Network Management...

  • Page 154: Update Firmware

    Ethernet network or through the console port. TFTP Server Address The IP address of the TFTP server where the new firmware code is. Firmware Update Determines whether or not the Switch should replace its switching software the next time it is rebooted.

  • Page 155: Change Configuration File

    Ethernet network or through the console port. TFTP Server Address is The IP address of the TFTP server where the configuration file is. File Download Determines whether or not the Switch should download its configuration file the next time it is booted.

  • Page 156: Save Settings To Tftp Server

    TFTP Server Address is The IP address of the TFTP server where the setting file will be saved. File Name The path and file name for the settings file on the TFTP server. Last Upload Status Read-only field displays the most recent upload activity. 24-port NWay Ethernet Switch User’s Guide Web-Based Network Management...

  • Page 157: Upload Log File

    24-port NWay Ethernet Switch User’s Guide Upload Log File To save a log file to your TFTP server, fill the fields in above and then click Upload now. The information is described as follows: TFTP Server Address is The IP address of the TFTP server where the log file will be saved.

  • Page 158: Save Changes

    24-port NWay Ethernet Switch User’s Guide Save Changes Figure 7-49. Save Changes window To save all the changes made in the current session to the Switch’s flash memory, click the Save Changes Now button. Help Click this button to access the online help files for the Switch.

  • Page 159: Technical Specifications

    24-port NWay Ethernet Switch User’s Guide Standards: Protocols: Data Transfer Rates: Ethernet Fast Ethernet Gigabit Ethernet Topology: Technical Specifications ECHNICAL General IEEE 802.3 10BASE-T Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3z 1000BASE-SX/LX Gigabit Ethernet IEEE 802.3ab 1000BASE-T Gigabit Ethernet ANSI/IEEE Std 802.3 NWay Auto-Negotiation...

  • Page 160: Physical And Environmental

    Temperatur Storage Temperatur Humidity: Dimensions: Weight: 24-port NWay Ethernet Switch User’s Guide General 2-pair UTP Cat. 3, 4, 5 (100m max.) EIA/TIA- 568 100-ohm STP (100 m max.) 2-pair UTP Cat. 5 (100m max.) EIA/TIA-568 100-ohm STP (100m max.) 62.5/125-micron multimode fiber (2 km max.) 62.5/125-micron multimode fiber (275m max.)
  • Page 161 24-port NWay Ethernet Switch User’s Guide EMI: Safety: Transmission Method: RAM Buffer: Filtering Address Table: Packet Filtering/ Forwarding Rate: MAC Address Learning: Forwarding Table Age Time: Technical Specifications Physical and Environmental FCC Class A, CE Class A, VCCI Class A, BSMI...

  • Page 162: Pin Specification

    RJ-45 P PECIFICATION When connecting the DES-3225G Series Switch to another switch, bridge, or hub, a modified crossover 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.
  • Page 163 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) RJ-45 Pin Specification...

  • Page 164: Sample Configuration File

    10.254.254.253 # – Remark. When placed as the first character on a line, the entire line will be ignored by the switch. This allows items to be labeled, or unused commands to remain in the file so that the syntax will not be forgotten.
  • Page 165 Files screen, the Firmware Update command will take precedence 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.

  • Page 166: Runtime Switching Software Default Settings

    Broadcast storm rising threshold Broadcast storm falling threshold Community string VLAN mode SNMP VLAN(802.1Q) Default port VID Ingress rule checking Mirror src port <->target port Mirror 24-port NWay Ethernet Switch User’s Guide OFTWARE Ethernet Disable Disable 9600 Console 0.0.0.0 0.0.0.0 0.0.0.0...
  • Page 167 24-port NWay Ethernet Switch User’s Guide Runtime Switch Software Default Settings...

  • Page 168: Index

    BOOTP server...36 BPDU...47 Bridge Forward Delay...19 Bridge Hello Time ...19 Bridge Identifier...18 24-port NWay Ethernet Switch User’s Guide Bridge Max. Age ...19 Bridge MIB (RFC 1493) ...3 Bridge Priority...18, 19, 20 Broadcast Rx (Broadcast Frames Received)...90 Broadcast Storm Falling Action...41 Broadcast Storm Falling Threshold...41...
  • Page 169 24-port NWay Ethernet Switch User’s Guide Console Timeout ...37 CRC Error...88 CRC Errors ...86, 87 Create/Modify User Accounts...31 Create/Remove a MAC-based VLAN...58 crossover cable...13 Crossover cable ...155 Current VLAN Mode ...57 Data filtering...3 Data filtering rate...3 Data forwarding...3 Data forwarding rate ...3 data packet ...47...
  • Page 170 Port Priority ...18, 19, 20 Port Traffic Statistics ...86 Port Trunking...20 Port type settings Console ...37 Out-of-Band...37 Port VLAN ID numbers (PVIDs)...66 Port-based VLANs ...25 24-port NWay Ethernet Switch User’s Guide ports ...2 Ports ...92 Power...11 ...152 Power Consumption Priority ...40 priority queue ...40 priority tag...41...
  • Page 171 24-port NWay Ethernet Switch User’s Guide SNMP Trap Manager Configuration...82 Software Update menu ...77 Software Updates ...77 Spanning Tree Algorithm...3 Spanning Tree Algorithm (STA)...17 Spanning Tree Algorithm Parameters ...45 Custom Filtering Table...51, 74 Forwarding Table...49 Protocol Parameters...45 Spanning Tree Protocol...17 Speed...87, 88...
  • Page 172 E-MAIL: service@dlink.india.com Italy D-Link Mediterraneo Srl/D-Link Italia 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 Japan 10F, 8-8-15 Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan TEL: 81-3-5434-9678 FAX: 81-3-5434-9868 URL: www.d-link.co.jp E-MAIL: kida@d-link.co.jp...
  • Page 173 South Africa D-Link South Africa 102 – 106 Witchhazel Avenue, Einstein Park 2, Block B, Highveld Technopark, Centurion, South Africa TEL: 27 (0) 12-665-2165 FAX: 27 (0) 12-665-2186 URL: www.d-link.co.za E-MAIL: attie@d-link.co.za Spain D-Link Iberia Gran Via de Carlos III, 843º Edificio Trade, 08028 Barcelona, Spain TEL: 34 93 4965751 FAX: 34 93 4965701 URL: www.dlinkiberia.es...

  • Page 174: Registration Card

    8. What category best describes your company? oAerospace oEngineering oEducation oFinance oHospital oLegal oInsurance/Real Estate oManufacturing oRetail/Chainstore/Wholesale oGovernment oTransportation/Utilities/Communication oVAR oSystem house/company oOther________________________________ 9. Would you recommend your D-Link product to a friend? oYes oNo oDon't know yet 10.Your comments on this product? __________________________________________________________________________________________ Dept.

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