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D-Link DGS-3224TG User Manual - Vlan Status

Other manuals for DGS-3224TG: Reference Manual, Release Note
Manual is about: Managed 24-Port Gigabit Ethernet Switch

Summary of DGS-3224TG

  • Page 1

    Dgs-3224tg managed 24-port gigabit ethernet switch user’s guide first edition ( october 2004) 651tg3224015 printed in taiwan recyclable.

  • Page 2

    Wichtige sicherheitshinweise 1. Bitte lesen sie sich diese hinweise sorgfältig durch. 2. Heben sie diese anleitung für den spätern gebrauch auf. 3. Vor jedem reinigen ist das gerät vom stromnetz zu trennen. Vervenden sie keine flüssig- oder aerosolreiniger. Am besten dient ein angefeuchtetes tuch zu...

  • Page 3: Limited Warranty

    Trademarks copyright d-link corporation 2002. Contents subject to change without prior notice. D-link is a registered trademark of d-link corporation/d-link systems, inc. All other trademarks belong to their respective proprietors. Copyright statement no part of this publication may be reproduced i...

  • Page 4

    Software products will work in combination with any hardware, or any application or system/platform software product provided by any third party, excepting only such products as are expressly represented, in d-link's applicable product documentation as being compatible. D-link's obligation under thi...

  • Page 5

    Attenzione! Il presente prodotto appartiene alla classe a. Se utilizzato in ambiente domestico il prodotto può causare interferenze radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati. Bsmi warning.

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    Table of contents about this guide .................................................................................................................................. 1 overview of this user’s guide .........................................................................................................

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    Ingress filtering ............................................................................................................................. 26 dhcp ............................................................................................................................................... 27 c...

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    Management..................................................................................................................................... 99 security ip ..................................................................................................................................... 99 snmp...

  • Page 11: Bout

    Dgs-3224tg gigabit ethernet switch user’s guide a bout t his g uide this user’s guide tells you how to install your dgs-3224tg, how to connect it to your gigabit ethernet network, and how to set its configuration using the built-in console interface. Overview of this user’s guide • chapter 1, “intro...

  • Page 12: Ntroduction

    Dgs-3224tg gigabit ethernet switch user’s guide 1 i ntroduction this section describes the features of the dgs-3224tg. Features the dgs-3224tg was designed for departmental and enterprise connections. As an all-gigabit-port switch, it is ideal for backbone and server connection. Powerful and versati...

  • Page 13: Management

    Dgs-3224tg gigabit ethernet switch user’s guide management • rs-232 console port for out-of-band network management via a console terminal. • spanning tree algorithm protocol for creation of alternative backup paths and prevention of network loops. • snmp v.1. • fully configurable either in-band or ...

  • Page 14: Npacking and

    Dgs-3224tg gigabit ethernet switch user’s guide 2 u npacking and s etup this chapter provides unpacking and setup information for the switch. Unpacking open the shipping carton of the switch and carefully unpack its contents. The carton should contain the following items: • one dgs-3224tg 24-port gi...

  • Page 15: Rack Installation

    Dgs-3224tg gigabit ethernet switch user’s guide figure 2-1. Installing rubber feet for desktop installation rack installation the dgs-3224tg 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...

  • Page 16: Power On

    Dgs-3224tg gigabit ethernet switch user’s guide figure 2-2b. Installing in an equipment rack power on the 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 powered on without having any or all lan...

  • Page 17: Dentifying

    Dgs-3224tg gigabit ethernet switch user’s guide 3 i dentifying e xternal c omponents this chapter describes the front panel, rear panel, side panels, and led indicators of the dgs-3224tg. Front panel the front panel of the switch consists of led indicators, an rs-232 communication port, 20 1000base-...

  • Page 18: Side Panels

    Dgs-3224tg gigabit ethernet switch user’s guide side panels the right side panel of the switch contains two system fans (see the top part of the diagram below). The left side panel contains heat vents. Figure 3-3. Side panel views of the switch • the systemfans are used to dissipate heat. The sides ...

  • Page 19: Onnecting

    Dgs-3224tg gigabit ethernet switch user’s guide 4 c onnecting t he s witch this chapter describes how to connect the dgs-3224tg to your gigabit ethernet network. Switch to end node end nodes include pcs outfitted with a 10, 100 or 10/100 mbps rj-45 ethernet/fast ethernet network interface card (nic)...

  • Page 20

    Dgs-3224tg gigabit ethernet switch user’s guide • a 10base-t hub or switch can be connected to the switch via a two-pair category 3, 4, 5, or 5e utp/stp cable. • a 100base-tx hub or switch can be connected to the switch via a two-pair category 5 or 5e utp/stp cable. • a 1000base-t switch can be conn...

  • Page 21: Witch

    Dgs-3224tg gigabit ethernet switch user’s guide 5 s witch m anagement and o perating c oncepts this chapter discusses many of the concepts and features used to manage the switch, as well as the concepts necessary for the user to understand the functioning of the switch. Further, this chapter explain...

  • Page 22

    Dgs-3224tg gigabit ethernet switch user’s guide make sure the terminal or pc you are using to make this connection is configured to match these settings. If you are having problems making this connection on a pc, make sure the emulation is set to vt- 100. If you still don’t see anything, try hitting...

  • Page 23: Traps

    Dgs-3224tg gigabit ethernet switch user’s guide figure 5-2. Switch information menu in addition, you can also set an ip address for a gateway router. This becomes necessary when the network management station is located on a different ip network from the switch, making it necessary for management pa...

  • Page 24: Mibs

    Dgs-3224tg gigabit ethernet switch user’s guide from a factory reset in that configuration settings saved to non-volatile ram used to reconfigure the switch. • authentication failure – this trap signifies that someone has tried to logon to the switch using an invalid snmp community string. The switc...

  • Page 25: Authentication

    Dgs-3224tg gigabit ethernet switch user’s guide • collecting information about the status and current configuration of network devices. • modifying the configuration of network devices. The dgs-3224tg has a software program called an ‘agent’ that processes snmp requests, but the user program that ma...

  • Page 26: Spanning Tree Protocol

    Dgs-3224tg gigabit ethernet switch user’s guide each port on the switch is a unique collision domain and the switch filters (discards) packets whose destination lies on the same port as where it originated. This keeps local packets from disrupting communications on other parts of the network. For in...

  • Page 27: Bridge Protocol Data Units

    Dgs-3224tg gigabit ethernet switch user’s guide (not user- configurable except by setting priority below) address. The bridge identifier consists of two parts: a 16-bit priority and a 48-bit ethernet mac address priority a relative priority for each switch – lower numbers give a higher priority and ...

  • Page 28: Stp Port States

    Dgs-3224tg gigabit ethernet switch user’s guide • the path cost to the root from the transmitting port • the port identifier of the transmitting port the switch sends bpdus to communicate and construct the spanning-tree topology. All switches connected to the lan on which the packet is transmitted w...

  • Page 29

    Dgs-3224tg gigabit ethernet switch user’s guide • disabled – the port only responds to network management messages and must return to the blocking state first a port transitions from one state to another as follows: • from initialization (switch boot) to blocking • from blocking to listening or to d...

  • Page 30: Illustration of Stp

    Dgs-3224tg gigabit ethernet switch user’s guide port cost 19 bridge priority 32,768 table 5-3. Default stp parameters user-changeable stp parameters the factory default setting should cover the majority of installations. However, it is advisable to keep the default settings as set at the factory, un...

  • Page 31

    Dgs-3224tg gigabit ethernet switch user’s guide setting-up stp using values other than the defaults can be complex. Therefore, you are advised to keep the default factory settings and stp will automatically assign root bridges/ports and block loop connections. Influencing stp to choose a particular ...

  • Page 32: Vlans

    Dgs-3224tg gigabit ethernet switch user’s guide the switch with the lowest bridge id (switch c) was elected the root bridge, and the ports were selected to give a high port cost between switches b and c. Note also that the example network topology is intended to provide redundancy to protect the net...

  • Page 33

    Dgs-3224tg gigabit ethernet switch user’s guide ieee 802.1q (tagged) vlans are implemented on the dgs-3224tg. 802.1q vlans require tagging, which enables them to span the entire network (assuming all switches on the network are ieee 802.1q-compliant). Vlans allow a network to be segmented in order t...

  • Page 34: 802.1Q Vlan Tags

    Dgs-3224tg gigabit ethernet switch user’s guide figure 5-6. Ieee 802.1q packet forwarding 802.1q vlan tags the figure below shows the 802.1q vlan tag. There are four additional octets inserted after the source mac address. Their presence is indicated by a value of 0x8100 in the ethertype field. When...

  • Page 35: Port Vlan Id

    Dgs-3224tg gigabit ethernet switch user’s guide figure 5-7. Ieee 802.1q tag the ethertype and vlan id are inserted after the mac source address, but before the original ethertype/length or logical link control. Because the packet is now a bit longer than it was originally, the cyclic redundancy chec...

  • Page 36: Tagging and Untagging

    Dgs-3224tg gigabit ethernet switch user’s guide destination address (found in the switch’s forwarding table). If the pvid of the port that received the packet is different from the pvid of the port that is to transmit the packet, the switch will drop the packet. Within the switch, different pvids me...

  • Page 37: Dhcp

    Dgs-3224tg gigabit ethernet switch user’s guide if the packet is not tagged with vlan information, the ingress port will tag the packet with its own pvid as a vid. The switch then determines if the destination port is a member of the same vlan (has the same vid) as the ingress port. If it does not, ...

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    Dgs-3224tg gigabit ethernet switch user’s guide 28.

  • Page 39: Onfiguring The

    Dgs-3224tg gigabit ethernet switch user’s guide 6 c onfiguring the s witch u sing the c onsole i nterface your 24-port gigabit 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 t...

  • Page 40

    Dgs-3224tg gigabit ethernet switch user’s guide you can also access the same functions over a telnet interface. Once you have set an ip address for your switch, you can use a telnet program (in vt-100 compatible terminal mode) to access and control the switch. All of the screens are identical, wheth...

  • Page 41

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-1. 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 in both the username and password fields. You will be given access to the main men...

  • Page 42: User Accounts Management

    Dgs-3224tg gigabit ethernet switch user’s guide user accounts management to create a new user account, highlight user accounts management from the main menu and press enter: figure 6-3. Main menu figure 6-4. Setup user accounts screen 32.

  • Page 43

    Dgs-3224tg gigabit ethernet switch user’s guide from the main menu, highlight user accounts management and press enter, then the setup user accounts screenappears. 1. Toggle the action field to add> using the space bar. This will allow the addition of a new user. The other options are delete> - this...

  • Page 44: Save Changes

    Dgs-3224tg gigabit ethernet switch user’s guide save changes the dgs-3224tg has two levels of memory; normal ram and non-volatile or nv-ram. Configuration changes are made effective by highlighting apply and pressing enter.When this is done, the settings will be immediately applied to the switching ...

  • Page 45: Factory Reset

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-6. Save changes screen once the switch configuration settings have been saved to nv-ram, they become the default settings for the switch. These settings will be used every time the switch is rebooted. Factory reset the only way to change the c...

  • Page 46

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-7. Main menu highlight reboot from the main menuand press enter. Figure 6-8. System reboot menu highlight the appropriate choiceand press enter to reset the switch’s nv-ram to the factory default settings (or just reboot the switch). Loading t...

  • Page 47

    Dgs-3224tg gigabit ethernet switch user’s guide purchased. The load factory default configuration except ip address option is used when the switch will be managed by the telnet manager, which requires knowledge of the switch’s ip address to function. Logging onto the switch console to log in once yo...

  • Page 48: Configuration

    Dgs-3224tg gigabit ethernet switch user’s guide 5. If the privilege level is to be changed, toggle the access level field until the appropriate level is displayed – root, user+ or user. 6. Highlight apply and press enter to make the change effective. 7. You must enter the configuration changes into ...

  • Page 49: Configure Ip Address

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-10. Configuration menu configure ip address some settings must be entered to allow the switch to be managed from an snmp-based network management system such as snmp v1 or to be able to access the switch using the telnet protocol. The remote m...

  • Page 50

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-11. Remote management setup screen the switch needs to have an ip address assigned to it so that an in-band network management system (e.G. Telnet) client can find it on the network. The remote management setup screen allows you to change the ...

  • Page 51

    Dgs-3224tg gigabit ethernet switch user’s guide ip address – determines the ip address used by the switch for receiving snmp and telnet communications. These fields should be of the form xxx.Xxx.Xxx.Xxx, where each xxx is a number (represented in decimal) between 0 and 255. This address should be a ...

  • Page 52

    Dgs-3224tg gigabit ethernet switch user’s guide you can also enter the name of the system, its location, and the name and telephone number of the system administrator. It is recommended that the person responsible for the maintenance of the network system that this switch is installed on be listed h...

  • Page 53: Configure Ports

    Dgs-3224tg gigabit ethernet switch user’s guide • scheduling mechanism for cos queues:strict> – there are two class of service queue options, roundrobinandstrict. If strict is selected, when the highest priority queue is full, those packets will be the first to be forwarded. If roundrobin is selecte...

  • Page 54

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-15. Configure ports screen toggle the view ports field, using the space bar, to view the configuration of either ports 1 through 12, 13 through 20, or 21 through 24. To configure a specific port, toggle the configure port from [ ] to [ ] field...

  • Page 55

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-16. Configure spanning tree menu the spanning tree protocol (stp) operates on two levels: on the switch level, the settings are globally implemented. On the port level, the settings are implemented on a per user-defined group basis. Note: the ...

  • Page 56

    Dgs-3224tg gigabit ethernet switch user’s guide note: observe the following formulas when setting the above parameters: max. Age ≤ 2 x (forward delay - 1 second) max. Age ≥ 2 x (hello time + 1 second) port spanning tree settings in addition to setting spanning tree parameters for use on the switch l...

  • Page 57

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-18. Configure static (destination-address forwarding) table menu setup unicast forwarding table highlight configure static forwarding table on the menu above to access the following screen: figure 6-19. Setup unicast forwarding table screen th...

  • Page 58

    Dgs-3224tg gigabit ethernet switch user’s guide address field. There are two static unicast forwarding types to select from, permanent and deleteonreset. Enter the port number in the port field. Highlight applyand press enter to make the changes current. Use save changes from the main menu to enter ...

  • Page 59: Configure Vlans

    Dgs-3224tg gigabit ethernet switch user’s guide note: the dgs-3224tg supports a maximum of 16k multicast mac address entities. Configure vlans the switch reserves one vlan, vid = 1, called the default_vlan for internal use. The factory default setting assigns all ports on the switch to the default_v...

  • Page 60

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-22. 802.1q static vlan settings screen to create an 802.1q vlan, enter a vlan id number in the vid field and a name for the new vlan in the vlan name field. To set the 802.1q vlan membership status of a port: to enter the 802.1q vlan status fo...

  • Page 61

    Dgs-3224tg gigabit ethernet switch user’s guide with the pvid (port vlan identifier – see below). When a tagged packet exits the port, the packet header is unchanged. If the port is attached to a device that is not ieee 802.1q vlan compliant (vlan-tag unaware), then the port should be set to u – unt...

  • Page 62

    Dgs-3224tg gigabit ethernet switch user’s guide ingress filter settings to set ingress filtering on a port, highlight configure port ingress filter on the ieee 802.1q vlans configuration menu and press enter: figure 6-24. Ingress filter settings screen highlight the configure port from [1 ] to [1 ] ...

  • Page 63: Configure Igmp Snooping

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-25. Port gvrp settings screen this screen allows you to enable or disable garp vlan registration protocol (gvrp), where garp is the generic attribute registration protocol, on individual ports. Enter the range of ports to be configured in the ...

  • Page 64

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-26. Igmp snooping settings screen to configure igmp snooping: toggle the switch igmp snooping field toenabled.Toggle the querier state field to the appropriate choice between non-querier, v1-querier, and v2-querierto determine the version of i...

  • Page 65: Configure Trunk

    Dgs-3224tg gigabit ethernet switch user’s guide • max response:[10] – sets the maximum amount of time allowed before sending an igmp response report. A value between 1 and 25 seconds can be entered, with a default of 10 seconds. Configure trunk to configure a port trunking group,highlight configure ...

  • Page 66: Configure Port Mirroring

    Dgs-3224tg gigabit ethernet switch user’s guide on the switch, stp will block one entire group – in the same way stp will block a single port that has a redundant link. The user-changeable parameters in the switch are as follows: • group id:[1] – this field is for a group id number for the port trun...

  • Page 67

    Dgs-3224tg gigabit ethernet switch user’s guide monitoring/troubleshooting device such as a sniffer or an rmon probe. Finally, toggle the mirror status field to enabled, highlight apply, and press enter. Note: you cannot mirror a fast port onto a slower port. For example, if you try to mirror the tr...

  • Page 68

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-30. Class of service configuration menu this menu allows you to set the following features: • max. Packets – use the space bar in this column to select the maximum number of packets the class of service priority queue can hold. The range of va...

  • Page 69

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-31. Port maxlimit drop settings screen the switch divides the buffer into four parts: queue0, queue1, queue2, and queue3. Queue0 is the highest priority and queue3 is the lowest. Press apply to let the change take effect. Port default priority...

  • Page 70: Configure Rs232 and Slip

    Dgs-3224tg gigabit ethernet switch user’s guide this screen allows you to set a default priority for packets that have not already been assigned a priority value. After filling out the two fields offered, press apply to let your changes take effect. Traffic class configuration select configure traff...

  • Page 71: Network Monitoring

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-34. Serial port and slip settings screen the following fields can then be set: • baud rate:9600> – sets the serial bit rate that will be used to communicate the next time the switch is restarted. Available speeds are 9600, 19200, 38400 and 115...

  • Page 72: Port Utilization

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-35. Network monitoring menu port utilization to view the port utilization of all the ports on the switch, highlight port utilization on the network monitoring menu and press enter: figure 6-36. Port utilization screen 62.

  • Page 73: Port Error Packets

    Dgs-3224tg gigabit ethernet switch user’s guide the port utilization screen shows the number of packets transmitted and received per second and calculates the percentage of the total available bandwidth being used on the port (displayed under %util.). Highlight clear counter and press enter to reset...

  • Page 74: Browse Mac Address

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-38. Packet analysis screen in addition to the size of packets received or transmitted by the selected port, statistics on the number of unicast, multicast, and broadcast packets are displayed. Highlight clear counter and press enter to reset t...

  • Page 75: Switch History

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-39. Browse address table screen the browse by field can be toggled between all,mac address,port,and vlan.This sets a filter to determine which mac addresses from the forwarding table are displayed. Allspecifies no filter. To search for a parti...

  • Page 76: Igmp Snooping

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-40. Switch history screen igmp snooping this allows the switch’s igmp snooping table to be viewed. Igmp snooping allows the switch to read the multicast group ip address and the corresponding mac address from igmp packets that pass through the...

  • Page 77: Browse Multicast Status

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-41. Igmp snooping status screen enter a vlan id number in the first field and press go to display the desired igmp snooping status screen. Browse multicast status figure 6-42. Multicast address status screen 67.

  • Page 78: Vlan Status

    Dgs-3224tg gigabit ethernet switch user’s guide this read-only screen displays the vlan id, group address, and static/igmp snooping port list for multicast addresses. Vlan status this allows the status for each of the switch’s vlans to be viewed. To view the vlan status table, highlight vlan status ...

  • Page 79: System Utilities

    Dgs-3224tg gigabit ethernet switch user’s guide the snmp allows up to four different community names to be defined. The community name public is defined by default; you can change this name in addition to adding others. You will need to coordinate these names with the community name settings you use...

  • Page 80

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-45. Switch utilities menu note: trivial file transfer protocol (tftp) services allow the switch firmware to be upgraded by transferring a new firmware file from a tftp server to the switch. A configuration file can also be loaded into the swit...

  • Page 81

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-46. Upgrade firmware screen enter the ip address of the tftp server in the server ip address field. Note: the tftp server must be on the same ip subnet as the switch. Enter the path and the filename to the firmware file on the tftp server. Not...

  • Page 82: Save Settings to Tftp Server

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-47. Use configuration file on tftp server screen enter the ip address of the tftp server and specify the location of the switch configuration file on the tftp server. Highlight applyand press enter to record the ip address of the tftp server. ...

  • Page 83

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-48. Save settings to tftp server screen enter the ip address of the tftp server and the path and filename of the settings file on the tftp server and press apply. Highlight startand press enter to initiate the file transfer. Save history log t...

  • Page 84: Ping Test

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-49. Save log to tftp server screen enter the ip address of the tftp server and the path and filename for the history log on the tftp server. Highlight applyand press enter to make the changes current. Highlight startand press enter to initiate...

  • Page 85: Reboot

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-50. Ping screen enter the ip address of the network device to be pinged and the number of test packets to be sent (3 is usually enough). Highlight startand press enter to initiate the ping program. Reboot the dgs-3224tg has several reboot opti...

  • Page 86

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-51. System reboot menu the reboot options are as follows: • reboot – simply restarts the switch. Any configuration settings not saved using save changes from the mainmenu will be lost. The switch’s configuration will be restored to the last co...

  • Page 87

    Dgs-3224tg gigabit ethernet switch user’s guide figure 6-52. System reboot confirmation screen to reboot the switch, in the mode entered above, highlight yesand press enter. 77.

  • Page 88: Ased

    Dgs-3224tg gigabit ethernet switch user’s guide 7 w eb -b ased n etwork m anagement introduction the dgs-3224tg offers an embedded web-based (html) interface allowing users to manage the switch from anywhere on the network through a standard browser, such as opera, netscape navigator/communicator, o...

  • Page 89

    Dgs-3224tg gigabit ethernet switch user’s guide click ok as there is no preset user name or password on the switch. This opens the main page in the management module. The top panel shows a real-time front panel display of the dgs-3224tg. Clicking on an individual port on this display will connect yo...

  • Page 90

    Dgs-3224tg gigabit ethernet switch user’s guide 80

  • Page 91

    Dgs-3224tg gigabit ethernet switch user’s guide these are the major categories for switch management. If the sub-menus for each main category do not appear, click on the small square hyperlink to the left of the folder icon. The switch management features available in the web-based are explained bel...

  • Page 92: Configuration

    Dgs-3224tg gigabit ethernet switch user’s guide configuration the first category includes: ip address, switch information, advanced settings, port configuration, port mirroring, port trunking, igmp snooping, spanning tree, static forwarding table, vlans, port default priority, class of traffic, clas...

  • Page 93: Switch Information

    Dgs-3224tg gigabit ethernet switch user’s guide switch information figure 7-2. Switch information (basic settings) window to set basic switch settings, enter a system name in the first field, the physical location of the switch in the system location field, and the name of the contact person respons...

  • Page 94: Advanced Settings

    Dgs-3224tg gigabit ethernet switch user’s guide advanced settings figure 7-3. Switch information (advanced settings) window after making the desired advanced setting layer 2 changes, click apply to let them take effect. The information in the window is described as follows: • auto-logout [never] – t...

  • Page 95: Port Configuration

    Dgs-3224tg gigabit ethernet switch user’s guide port configuration figure 7-4. Port configuration window select the port you want to configure by using the drop-down menus in the from and to fields. Follow these steps: 1. Enable or disable the port. If you choose disabled in the state field, devices...

  • Page 96: Port Mirroring

    Dgs-3224tg gigabit ethernet switch user’s guide capabilities of the device at the other end. The other selections allow you to force the port to operate in the specified manner. Select 1000m/full for port operation at 1000 mbps and full duplex. Select 100m/half for port operation at 100 mbps and hal...

  • Page 97: Port Trunking

    Dgs-3224tg gigabit ethernet switch user’s guide port trunking figure 7-6. Port trunking settings window the switch supports up to 6 trunk groups. Trunks are groups of ports that are banded together to form a single, logical, high-bandwidth data pipe. The maximum number of member ports for a trunk gr...

  • Page 98: Spanning Tree

    Dgs-3224tg gigabit ethernet switch user’s guide 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 devi...

  • Page 99

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-8. Switch spanning tree settings window click apply after making changes to the window above. Parameters that you can change are: • spanning tree protocol – this drop-down menu allows you to enable the spanning tree protocol setting. • bridge ...

  • Page 100

    Dgs-3224tg gigabit ethernet switch user’s guide stp port settings figure 7-9. Stp port settings window to configure spanning tree protocol functions for individual ports, enter the desired information in the fields on this window (see the descriptions below for assistance) and then click apply. The ...

  • Page 101: Static Forwarding Table

    Dgs-3224tg gigabit ethernet switch user’s guide static forwarding table static unicast forwarding figure 7-10. Add static forward window the window above allows you to set up static packet forwarding on the switch. The information on the window is described as follows: • mac address – the mac addres...

  • Page 102: Vlans

    Dgs-3224tg gigabit ethernet switch user’s guide • port map – allows the selection of ports that will be members of the static multicast group and ports that have no restrictions from joining dynamically. Vlans this section includes static vlan entry and port vlan id (pvid). Static vlan entry figure ...

  • Page 103

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-14. 802.1q static vlan setup window to modify an entry, click the pointer icon next to the appropriate table entry on the 802.1q static vlans window and then complete the appropriate information on the window above. Click apply to let your cha...

  • Page 104

    Dgs-3224tg gigabit ethernet switch user’s guide port vlan id (pvid) figure 7-15. 802.1q port settings window this window allows you to assign a port vlan id (pvid) number, enable or disable the ingress filtering check, and enable or disable gvrp for individual ports. Ingress filtering means that a r...

  • Page 105: Port Default Priority

    Dgs-3224tg gigabit ethernet switch user’s guide create and manage vlans on switches connected through 802.1q ports. Click apply to let your changes take effect. The information on the window is described as follows: • pvid – pvid is used to decide whether received tagged packets belong to a vlan. • ...

  • Page 106: Class of Traffic

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-16. Default port priority assignment window this window allows you to set a default priority for packets that have not already been assigned a priority value. After filling out the two fields offered, click apply to let your changes take effec...

  • Page 107

    Dgs-3224tg gigabit ethernet switch user’s guide can be entered in this field are from 1 to 255. Entering zero instructs the switch to continue processing packets until there are no more packets in the cos transaction queue. • max. Latency – the maximum allowable time a packet will stay in the cos qu...

  • Page 108: Rs232 & Slip

    Dgs-3224tg gigabit ethernet switch user’s guide the switch divides the buffer into four parts: queue0, queue1, queue2, and queue3. Queue0 is the highest priority and queue3 is the lowest. Use the window above to select the ports for each of the four queue priorities. Turn the class state to on for t...

  • Page 109: Management

    Dgs-3224tg gigabit ethernet switch user’s guide management this category includes: security ip, snmp manager, trap manager, and user accounts. Security ip figure 7-21. Security ip management window use this window to specify ip addresses that are allowed to access the switch. Snmp manager figure 7-2...

  • Page 110: Trap Manager

    Dgs-3224tg gigabit ethernet switch user’s guide • community string – a user-defined snmp community name. • access right –the permitted access of read-only or read-write using the snmp community name. • status –option to set the current community string to valid or invalid. Trap manager figure 7-23. ...

  • Page 111: Monitoring

    Dgs-3224tg gigabit ethernet switch user’s guide • access right – displays the current access level assigned to each corresponding user. There are three access levels: user, user+, and root. A root user has full read/write access, while a user has read only access. A user+ has the same privileges as ...

  • Page 112: Packets

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-26. Utilization of port window the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of times th...

  • Page 113

    Dgs-3224tg gigabit ethernet switch user’s guide received (rx) figure 7-27. Rx packets analysis window (line chart) 103.

  • Page 114

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-28. Rx packets analysis window (table) the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of ...

  • Page 115

    Dgs-3224tg gigabit ethernet switch user’s guide umb-cast (rx) figure 7-29. Rx packets analysis window for umb_cast (line chart) 105.

  • Page 116

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-30. Rx packets analysis window for umb_cast (table) the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. • record number – select number of times the switch wil...

  • Page 117

    Dgs-3224tg gigabit ethernet switch user’s guide transmitted (tx) figure 7-31. Tx packets analysis window (line chart) 107.

  • Page 118: Errors

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-32. Tx packets analysis window (table) the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of ...

  • Page 119

    Dgs-3224tg gigabit ethernet switch user’s guide received (rx) figure 7-33. Rx error analysis window (line chart) figure 7-34. Rx error analysis window (table) the information is described as follows: 109.

  • Page 120

    Dgs-3224tg gigabit ethernet switch user’s guide • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of times the switch will be polled between 20 and 200. The default value is 20. • crcerror –...

  • Page 121

    Dgs-3224tg gigabit ethernet switch user’s guide transmitted (tx) figure 7-35. Tx error analysis window (line chart) 111.

  • Page 122

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-36. Packet analysis window (table) the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of time...

  • Page 123: Size

    Dgs-3224tg gigabit ethernet switch user’s guide size the web manager allows packets transmitted and received by the switch, arranged in six groups, to be viewed as either a line graph or a table. The two windows offered are as follows: packet size figure 7-37. Tx/rx size analysis window (line chart)...

  • Page 124

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-38. Packet analysis window (table) the information is described as follows: • time interval – select the desired setting between 1s and 60s, where “s” stands for seconds. The default value is one second. • record number – select number of time...

  • Page 125: Mac Address Table

    Dgs-3224tg gigabit ethernet switch user’s guide • view table – clicking this button instructs the switch to display a table rather than a line graph. • view line chart – clicking this button instructs the switch to display a line graph rather than a table. Mac address table the web manager allows th...

  • Page 126: Igmp Snooping Table

    Dgs-3224tg gigabit ethernet switch user’s guide the information is described as follows: • search by vlan id – allows the forwarding table to be browsed by vlan id (vid). • search by mac address – allows the forwarding table to be browsed by mac address. • search by port – allows the forwarding tabl...

  • Page 127: Vlan Multicast Table

    Dgs-3224tg gigabit ethernet switch user’s guide vlan multicast table this read-only table displays the vlan multicast table for each vlan id on the switch. Figure 7-41. Vlan multicast table window igmp multicast table this read-only table displays the igmp multicast table for each vlan id on the swi...

  • Page 128: Maintenance

    Dgs-3224tg gigabit ethernet switch user’s guide • current egress ports – displays the current egress ports on the vlan. • current untagged ports – displays the current untagged ports on the vlan. Maintenance this category includes tftp services (update firmware, configuration file, save settings, an...

  • Page 129

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-45. Use configuration file on server window enter the ip address of the tftp server in the server ip address field and the complete path and file name of the firmware file for the switch. Click apply to enter the server’s ip address into the s...

  • Page 130: Switch History

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-47. Save switch history to tftp server window enter the ip address of the tftp server in the server ip address field and the complete path and file name of the firmware file for the switch. Click apply to enter the server’s ip address into the...

  • Page 131: Ping Test

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-48. Switch history window 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 next at the bottom of the window will allow you to display ...

  • Page 132: Save Changes

    Dgs-3224tg gigabit ethernet switch user’s guide figure 7-49. Ping test window enter the ip address of the network device to be pinged in the first field and select the number of test packets to be sent (3 is usually enough). Click start to initiate the ping program. Save changes figure 7-50. Save co...

  • Page 133: Factory Reset

    Dgs-3224tg gigabit ethernet switch user’s guide factory reset figure 7-51. Factory reset to default value window a remote reset returns the switch to the initial parameters set at the factory. Click reset to factory default to reset the switch. Restart system figure 7-52. Restart system window to pe...

  • Page 134: Connection Timeout

    Dgs-3224tg gigabit ethernet switch user’s guide connection timeout figure 7-53. Web timeout setup window to use this web timeout feature, enter the desired age-out time and then click apply. Logout figure 7-54. Logout web setups window to exit the setup pages and return to the main page, click apply...

  • Page 135: Echnical

    Dgs-3224tg gigabit ethernet switch user’s guide a t echnical s pecifications general standards: ieee 802.3 10base-t ethernet ieee 802.3u 100base-tx fast ethernet ieee 802.3z gigabit ethernet ieee 802.1q tagged vlan ieee 802.1p tagged packets ieee 802.3ab 1000base-t ieee 802.3x full-duplex flow contr...

  • Page 136

    Dgs-3224tg gigabit ethernet switch user’s guide general meters max.) 9 µm single-mode fiber-optics (10 km max.) number of ports: 20 10/100/1000 mbps ports 4 gbic ports physical and environmental ac inputs: 100 – 240 vac, 50/60 hz (internal universal power supply) power consumption: 79 watts maximum ...

  • Page 137

    Dgs-3224tg gigabit ethernet switch user’s guide 127.

  • Page 138: Able

    Dgs-3224tg gigabit ethernet switch user’s guide b c able l engths use the following table to as a guide for the maximum cable lengths: standard media type maximum distance gbic 50/125µm multimode fiber 550 meters 62.5/125µm multimode fiber 550 meters 9µm single-mode fiber 5,000 meters 1000base-t cat...

  • Page 139: Untime

    Dgs-3224tg gigabit ethernet switch user’s guide c r untime s witching s oftware d efault s ettings load mode ethernet configuration update disable firmware update disable out-of-band baud rate 9600 rs232 mode console ip address 10.90.90.90 subnet mask 255.0.0.0 default gateway 0.0.0.0 bootp service ...

  • Page 140: Nderstanding and

    Dgs-3224tg gigabit ethernet switch user’s guide d u nderstanding and t roubleshooting the s panning t ree p rotocol when the spanning-tree algorithm determines a port should be transitioned to the forwarding state, the following occurs: • the port is put into the listening state where it receives bp...

  • Page 141: Listening State

    Dgs-3224tg gigabit ethernet switch user’s guide listening state the listening state is the first transition for a port from the blocking state. Listening is an opportunity for the switch to receive bpdus that may tell the switch that the port should not continue to transition to the forwarding state...

  • Page 142: Learning State

    Dgs-3224tg gigabit ethernet switch user’s guide learning state a port in the learning state prepares to participate in frame forwarding. The port enters the learning state from the listening state. A port in the learning state does the following: • discards frames received from the network segment t...

  • Page 143: Forwarding State

    Dgs-3224tg gigabit ethernet switch user’s guide forwarding state a port in the forwarding state forwards packets. The port enters the forwarding state from the learning state when the forward delay timer expires. A port in the forwarding state does the following: • forwards packets received from the...

  • Page 144: Disabled State

    Dgs-3224tg gigabit ethernet switch user’s guide disabled state a port in the disabled state does not participate in frame forwarding or stp. A port in the disabled state is virtually non-operational. A disabled port does the following: • discards packets received from the network segment to which it...

  • Page 145: Troubleshooting Stp

    Dgs-3224tg gigabit ethernet switch user’s guide troubleshooting stp spanning tree protocol failure a failure in the sta generally leads to a bridging loop. A bridging loop in an stp environment comes from a port that should be in the blocking state, but is forwarding packets. 135.

  • Page 146: Full/half Duplex Mismatch

    Dgs-3224tg gigabit ethernet switch user’s guide in this example, b has been elected as the designated bridge and port 2 on c is in the blocking state. The election of b as the designated bridge is determined by the exchange of bpdus between b and c. B had a better bpdu than c. B continues sending bp...

  • Page 147: Unidirectional Link

    Dgs-3224tg gigabit ethernet switch user’s guide in the above example, port 1 on b is configured as a full-duplex port and port 1 on a is either configured as a half-duplex port, or left in auto-negotiation mode. Because port 1 on b is configured as a full-duplex port, it does not do the carrier sens...

  • Page 148: Packet Corruption

    Dgs-3224tg gigabit ethernet switch user’s guide state. If the failure exists at boot, stp will not converge and rebooting the bridges will have no effect. (note: rebooting would help temporarily in the previous example). This type of failure is difficult to detect because the link-state leds for eth...

  • Page 149

    Dgs-3224tg gigabit ethernet switch user’s guide although the stp can elect a root bridge, a well-designed network will have an identifiable root for each vlan. Careful setup of the stp parameters will lead to the selection of this best switch as the root for each vlan. Redundant links can then be bu...

  • Page 150

    Dgs-3224tg gigabit ethernet switch user’s guide in this example, the vlan definitions are extended to switches a and b. This gives only a single blocked port per vlan and allows the removal of all redundant links by removing switch a or b from the network. 140

  • Page 151: Rief

    Dgs-3224tg gigabit ethernet switch user’s guide e b rief r eview of b itwise l ogical o perations and the logical and operation compares 2 bits and if they are both “ 1”, then the result is “1”, otherwise, the result is “0”. 0 1 0 0 0 1 0 1 or the logical or operation compares 2 bits and if either o...

  • Page 152: Ndex

    Dgs-3224tg gigabit ethernet switch user’s guide i ndex a ac inputs ............................................................ 125 ac power cord........................................................ 4 access rights read only ............................................................ 68 read/wri...

  • Page 153

    Dgs-3224tg gigabit ethernet switch user’s guide 143 p password ............................................................... 30 port mirroring ....................................................... 55 port priority..................................................... 20, 45 ports....................

  • Page 154

    Offices australia d-link australasia unit 16, 390 eastern valley way, roseville, nsw 2069 australia tel: 61-2-9417-7100 fax: 61-2-9417-1077 toll free (australia): 1800-177100 toll free (new zealand): 0800-900900 url: www.Dlink.Com.Au e-mail: support@dlink.Com.Au & info@dlink.Com.Au level 1, 434 st. ...

  • Page 155

    Netherlands d-link benelux fellenoord 1305611 zb, eindhoven, the netherlands tel: 31-40-2668713 fax: 31-40-2668666 url: www.D-link-benelux.Nl norway d-link norway waldemar thranesgt. 77, 0175 oslo, norway tel: 47-22-991890 fax: 47-22-207039 russia d-link russia michurinski prospekt 49, 117607 moscow...