Accton 4508 - Manuals

1 1-1 Chapter 1: Managing the Switch Configuration Options The CheetahSwitch Workgroup-4508 provides a menu-driven systemconfiguration program that can be accessed through a direct console connectionor modem connection to the serial port on the switch’s rear panel (out-of-band),or by a Telnet connec...

1-2 CheetahSwitch Workgroup-4508 Making Connections for System Configuration The switch includes a menu-driven configuration program. The ASCII interface tothis program can be accessed by making a direct connection to the serialport on the rear panel, or by a Telnet connection to the switch over the...

Management Guide 1-3 Telnet Connection Prior to accessing the switch via an in-band Telnet connection, you must firstconfigure it with a valid IP address, subnet mask, and default gateway using anout-of-band connection or BOOTP protocol. After configuring the switch’s IPparameters, you can access th...

1 2-1 Chapter 2: Using the System Configuration Program Once a direct connection to the serial port or a Telnet connection is established,the login screen for the on-board configuration program appears as shown below. AAAAAAA AAAAAAAAAA AAAAA AAAA AAAAA AAAA AAAAA AAAA CCCCCCC CCCCCC TTTTTTTTTT OOOO...

2-2 CheetahSwitch Workgroup-4508 Main Menu With the system configuration program you can define system parameters,manage the switch and all its ports, or monitor network conditions. The figurebelow of the Main Menu and the following table briefly describe the selectionsavailable from this program. N...

Management Guide 2-3 Parameter Description Port Information Displays operational status, including link state, flow control method,speed and duplex mode. Spanning Tree Configuration Enables Spanning Tree Algorithm; also sets parameters for hello time, maximum message age, switch priority, and forwar...

2-4 CheetahSwitch Workgroup-4508 System Information Menu Use the System Information Menu to display a basic description of the switch,including contact information, and hardware/firmware versions. CheetahSwitch Workgroup - 4508 System Information Menu System Information ... Switch Information ... &l...

Management Guide 2-5 Displaying Version Information Use the Switch Information screen to display hardware/firmware version numbers,as well as the power status. CheetahSwitch Workgroup - 4508 Switch Information Hardware Version : V1.0 POST ROM Version : V01.00.00 Firmware Version : V01.00.01 Serial N...

2-6 CheetahSwitch Workgroup-4508 CheetahSwitch Workgroup - 4508 Management Setup Network Configuration ...Serial Port Configuration ...SNMP Configuration ...Console Login Configuration ...TFTP Download ... <OK> Use <TAB> or arrow keys to move. <Enter> to select. Changing the Networ...

Management Guide 2-7 IP Configuration Use the IP Configuration screen to set the bootup option, or configure the switch'sIP parameters. The screen shown below is described in the following table. CheetahSwitch Workgroup - 4508 Network Configuration: IP Configuration Interface Type : EthernetIP Addre...

Management Guide 2-9 HTTP Configuration Use the HTTP Configuration screen to enable/disable the on-board Web agent,and to specify the TCP port that will provide HTTP service. The screen shownbelow is described in the following table. CheetahSwitch Workgroup - 4508 Network Configuration: HTTP Configu...

2-12 CheetahSwitch Workgroup-4508 Configuring Community Names The following figure and table describe how to configure the community stringsauthorized for trap management access. All community strings used for IP TrapManagers must be listed in this table. Up to 5 community names may be entered. Chee...

Management Guide 2-13 Parameter Description IP Address IP address of the trap manager. Community Name A community specified in the SNMP Communities table. Status Sets administrative status of entry to enabled or disabled. Console Login Configuration Use the Management Setup: Console Login Configurat...

2-14 CheetahSwitch Workgroup-4508 Downloading System Software Using TFTP Protocol to Download Over the Network Use the TFTP Download menu to load software updates into the switch. Thedownload file should be an ES4508 binary file from Accton; otherwise the agentwill not accept it. The success of the ...

Management Guide 2-15 Configuring the Switch The Device Control menu is used to set the communication parameters forindividual ports, and to fine-tune the performance of your switch by adjusting theforwarding mode, flow control, and specific Spanning Tree parameters.Configuration menus are also prov...

Management Guide 2-17 Viewing the Current Port Configuration The Port Information screen displays the port type, status, link state, and flowcontrol in use. To change any of the port settings, use the configuration menu. CheetahS witch Workgr oup - 4508 Port In formation: P ort 1 - 8 Port Type Opera...

2-18 CheetahSwitch Workgroup-4508 Configuring Bridge STA The following figure and table describe Bridge STA configuration. CheetahSwitch Workgroup - 4508 Spanning Tree Configuration: Bridge STA Configuration Spanning Tree Protocol : ENABLED Hello Time : 2 Max Age : 6 Priority : 32768 Forward Delay :...

Management Guide 2-19 Configuring STA for Ports The following figure and table describe STA configuration for ports. CheetahSwitch Workgroup - 4508 Spanning Tree Port Configuration : Port 1 - 8 Port Type Priority Cost Fast STA Mode ----------------------------------------------------- 1 1000SX 128 4...

2-20 CheetahSwitch Workgroup-4508 Viewing the Current Spanning Tree Configuration The Spanning Tree Information screen displays a summary of the STAinformation for the overall bridge or for a specific port. To make any changes tothe parameters for the Spanning Tree, use the Spanning Tree Configurati...

Management Guide 2-23 Using a Mirror Port for Analysis You can mirror traffic from any source port to a target port for real-time analysis.You can then attach a logic analyzer or RMON probe to the target port and studythe traffic crossing the source port in a completely unobtrusive manner. Whenmirro...

2-24 CheetahSwitch Workgroup-4508 Configuring IGMP This protocol allows a host to inform its local switch/router that it wants to receivetransmissions addressed to a specific multicast group. You can use the IGMPConfiguration screen to configure multicast filtering shown below: CheetahSwitch Workgro...

Management Guide 2-25 Broadcast Storm Control Use the Broadcast Storm Control menu to enable/disable broadcast suppressionon a per-port basis. You can also set the packet-per-second threshold abovewhich broadcast packets will be discarded. The parameters are shown in thefollowing figure and table. C...

2-26 CheetahSwitch Workgroup-4508 Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that support TrafficClasses, Multicast Filtering and Virtual LANs. To configure these extensions, usethe Extended Bridge Configuration screen as shown below: Cheetahswitch Workg...

Management Guide 2-27 Configuring Traffic Classes IEEE 802.1p defines up to 8 separate traffic classes. This switch supportsQuality of Service (QoS) by using two priority queues, with weighted fair queuingfor each port. You can use the 802.1P Configuration menu to configure thedefault priority for e...

2-28 CheetahSwitch Workgroup-4508 802.1p Port Traffic Class Information This switch provides two priority levels with weighted fair queuing for port egress.This means that any frames with a default or user priority from 0~3 are sent tothe low priority queue “0” while those from 4~7 are sent to the h...

Management Guide 2-29 Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch toany of up to 16 LAN groups. In conventional networks with routers, broadcasttraffic is split up into separate domains. Switches do not inherently supportbroadcast domains. This c...

2-30 CheetahSwitch Workgroup-4508 802.1Q VLAN Current Table Information This screen shows the current port members of each VLAN and whether or notthe port supports VLAN tagging. Ports assigned to a large VLAN group thatcrosses several switches should use VLAN tagging. However, if you just want tocre...

Management Guide 2-31 802.1Q VLAN Static Table Configuration Use this screen to create a new VLAN or modify the settings for an existingVLAN. Note that all ports can only belong to one untagged VLAN. This is set toVLAN 1 by default, but can be changed via the 802.1Q VLAN Port Configurationscreen. Ch...

2-32 CheetahSwitch Workgroup-4508 For example, the following screen displays settings for VLAN 2, which includestagged ports 1-6, and forbidden port 8. CheetahSwitch Workgroup - 4508 1Q VLAN Static Table Configuration VID VLAN Name Row Status ------------------------------ 2 RD Active Egress Ports F...

Management Guide 2-33 Monitoring the Switch The Network Monitor Menu provides access to port statistics, RMON statistics,IP multicast addresses, and the static (unicast) address table. Each of thescreens provided by these menus is described in the following sections. CheetahSwitch Workgroup - 4508 N...

Management Guide 2-35 Parameter Description Carrier Sense Errors 1 The number of times that the carrier sense condition was lost ornever asserted when attempting to transmit a frame. Frames Too Long The number of frames received that exceed the maximum permittedframe size. Internal Mac Receive Error...

Management Guide 2-37 Using the Address Table The Address Table contains the MAC addresses and VLAN identifiier associatedwith each port (that is, the source port associated with the address and VLAN).The address table provides search options for a specific port, address or VLANidentifier. You can a...

2-40 CheetahSwitch Workgroup-4508 Resetting the System Use the System Restart Menu under the Main Menu to reset the managementagent. The reset screen also includes an option to return all configurationparameters to their factory defaults. CheetahSwitch Workgroup - 4508 System Restart Menu Restart Op...

1 3-1 Chapter 3: Using the Web Agent As well as the menu-driven system configuration program, the CheetahSwitchWorkgroup-4508 provides an embedded HTTP Web agent. This agent can beaccessed by any computer on the network using a standard Web browser (InternetExplorer 4.0 or above, or Netscape Navigat...

Management Guide 3-3 Panel Display The Web Agent displays an image of the switch’s ports, showing port link andactivity. Clicking on the image of a port displays statistics and configurationinformation for the port. Clicking on the image of the serial port (labelled “Mgmt”)displays the Console Confi...

3-4 CheetahSwitch Workgroup-4508 Main Menu Using the on-board Web agent, you can define system parameters, manage andcontrol the switch and all its ports, or monitor network conditions. The figure to theright of the Main Menu and the following table briefly describe the selectionsavailable from this...

Management Guide 3-5 System Information Use the System Information screen to display descriptive information about theswitch, or for quick system identification as shown in the following figure and table. Parameter Description System Name 1 Name assigned to the switch system. IP Address 2 IP address...

3-6 CheetahSwitch Workgroup-4508 Switch Information Use the Switch Information screen to display hardware/firmware version numbersfor the main board and SNMP agent, as well as the power status. Main Board Parameter Description Hardware Version Hardware version of the main board. POST Version System ...

Management Guide 3-7 Network Configuration Use the IP Configuration screen to set the bootup option, configure the Ethernet IPaddresses for the agent module, or set the number or concurrent Telnet sessionsallowed. The Access Host screen can be used to limit access to the Webmanagement agent to speci...

3-8 CheetahSwitch Workgroup-4508 Access Host Use the Access Host screen to specify subnet groups from which the switch’smanagement agent can be accessed. The screen shown below is described in thefollowing table. Parameter Description Access IP Net An IP address of a subnet authorized for management...

Management Guide 3-9 SNMP Community The following figure and table describe how to configure the community stringsauthorized for trap management access. All community strings used for IP TrapManagers must be listed in this table. Up to 5 community names may be entered. Parameter Description Communit...

3-10 CheetahSwitch Workgroup-4508 Security Configuration Use the Security Configuration screen to restrict management access based onAdministrator user name and password. Only the Administrator has write accessfor parameters governing the SNMP agent. You should therefore assign apassword to the Admi...

Management Guide 3-11 Parameter Description File Name The ES4508 binary file to download. Use the Browse button to locatethe firmware file. Start Web Upload Issues request to TFTP server to download the specified file. TFTP Download Management Use the TFTP Download Management menu to load software u...

3-12 CheetahSwitch Workgroup-4508 Address Table Configuration The Address Table contains the MAC addresses associated with each port (that is,the source port associated with the address). The address table provides searchoptions for a specific port or address. You can also clear the entire address t...

Management Guide 3-13 STA (Spanning Tree Algorithm) The Spanning Tree Algorithm can be used to detect and disable network loops,and to provide backup links between switches, bridges or routers. This allows theswitch to interact with other bridging devices (that is, STA compliant switch, bridgeor rou...

3-14 CheetahSwitch Workgroup-4508 Ports The parameters shown in the following figure and table are for port STAInformation. Parameter Description Port Status Displays the current state of this port within the spanning tree:Disabled Port has been disabled by the user or has failed diagnostics. Blocke...

Management Guide 3-15 Spanning Tree Configuration The following figures and tables describe Bridge STA configuration. Switch Parameter Default Description Usage Enabled Enable this parameter to participate in an STA compliant network. Priority 32,768 Device priority is used in selecting the root dev...

3-16 CheetahSwitch Workgroup-4508 Parameter Default Description Forward Delay 15 The maximum time (in seconds) the root device will wait beforechanging states (i.e., listening to learning to forwarding). Thisdelay is required because every device must receive informationabout topology changes before...

Management Guide 3-17 Parameter Default Description Fast STA Mode Disabled This enables/disables the Fast STA Mode for the port. In this mode, ports skip the Blocked, Listening and Learning states and proceedstraight to Forwarding.The Fast STA Mode enables end-node workstations and servers toovercom...

3-18 CheetahSwitch Workgroup-4508 Bridge Settings Parameter Description Traffic Class Multiple traffic classes are supported by this switch as indicated underBridge Capabilities. However, the switch supports just two priorityqueues and only the default port priority can be configured. The switchdoes...

Management Guide 3-19 Parameter Description Port Numeric identifier for switch port. Default Ingress User Priority Default priority can be set to any value from 0~7, where 0~3 specifiesthe low priority queue and 4~7 specifies the high priority queue. Number of Egress Traffic Classes Indicates that t...

3-20 CheetahSwitch Workgroup-4508 Configuring VLANs Use the VLAN menu to create LAN groups and assign switch ports to any of up to16 groups. In conventional networks with routers, broadcast traffic is split up intoseparate domains. Switches do not inherently support broadcast domains. Thiscan lead t...

3-22 CheetahSwitch Workgroup-4508 VLAN Static List Use this screen to create or remove VLAN groups. Parameter Description Current Lists all the current VLAN groups created for this system. Up to 16 VLANgroups can be defined. To allow this switch to participate in external VLANgroups, you must use th...

Management Guide 3-23 Use the screens shown below to assign ports to the specified VLAN group as anIEEE 802.1Q tagged port. Assign ports as tagged if they are connected to 802.1QVLAN compliant devices. If the port is connected to VLAN-unaware devices,frames will passed to the untagged VLAN group thi...

Management Guide 3-25 IGMP Multicast Filtering Multicasting is used to support real-time applications such as video conferencingor streaming audio. A multicast server does not have to establish a separateconnection with each client. It merely broadcasts its service to the network, andany hosts which...

3-26 CheetahSwitch Workgroup-4508 IP Multicast Registration Table Use the IP Multicast Registration Table to display all the multicast groups active onthis switch, including multicast IP addresses and the corresponding VLAN ID. Parameter Description VLAN ID VLAN ID assigned to this multicast group. ...

Management Guide 3-27 Parameter Description Admin Status Shows if the port is enabled or not. Link Status Indicates if the port has a valid connection to an external device. Speed Status Indicates that the port is connected at 1000 Mbps.. Duplex Status Indicates that the port is connected at full du...

3-28 CheetahSwitch Workgroup-4508 Port Mirroring Configuration You can mirror the traffic from a target port to an analysis port for real-timeanalysis. You can then attach a logic analyzer or RMON probe to the analysis portand study the traffic crossing target port in a completely unobtrusive manner...

Management Guide 3-31 Parameter Description Jabbers The total number of frames received that were longer than 1518 octets(excluding framing bits, but including FCS octets), and had either anFCS or alignment error. Collisions The best estimate of the total number of collisions on this Ethernetsegment...

3-32 CheetahSwitch Workgroup-4508 Broadcast Storm Control Use the Broadcast Storm Control page to enable/disable broadcast suppressionon a per-port basis. You can also set the broadcast-rate threshold above whichbroadcast packets will be discarded. The parameters are shown in the followingfigure and...

1 4-1 Chapter 4: Advanced Topics Spanning Tree Algorithm The Spanning Tree Algorithm (that is, the STA configuration algorithm as outlinedin IEEE 802.1D) can be used to detect and disable network loops, and to providelink backup. This allows the switch to interact with other bridging devices (includ...

4-2 CheetahSwitch Workgroup-4508 Virtual LANs Switches do not inherently support broadcast domains, which can lead tobroadcast storms in large networks that handle a lot of IPX or NetBeui traffic. Inconventional networks with routers, broadcast traffic is split up into separatedomains to confine bro...

Management Guide 4-3 VLAN Classification When the switch receives a frame, it classifies the frame in one of two ways:• If the frame is untagged, the switch assigns the frame to an associated VLAN (based on the PVID of the receiving port). • If the frame is tagged, the switch uses the tagged VLAN ID...

4-4 CheetahSwitch Workgroup-4508 Forwarding Traffic with Unknown VLAN Tags Up to 2048 VLANs are supported by the IEEE 802.1Q protocol, but this switch onlysupports 16 VLANs. Therefore, if this switch is attached to any device thatforwards frames with unknown VLAN tags, or to endstations which issue ...

Management Guide 4-5 The purpose of IP multicast filtering is to optimize a switched network’sperformance, so multicast packets will only be forwarded to those ports containingmulticast group hosts or multicast routers/switches instead of flooding to all portsin the subnet (VLAN).The CheetahSwitch W...

4-6 CheetahSwitch Workgroup-4508 Statistics : Includes all the tools needed to monitor your network for common errors and overall traffic rates. Information is provided on bandwidth utilization,peak utilization, packet types, errors and collisions, as well as the distribution ofpacket sizes. History...

1 A-1 Appendix A: Troubleshooting Refer to the Quick Installation Guide for a more detailed listing of troubleshootingprocedures. However, if you have trouble making a connection to the agentmodule, then please refer to the following section. Console Connection If you cannot access the on-board conf...

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1 B-1 Appendix B: Pin Assignments DB9 Serial Port Pin Description The DB9 serial port on the switch’s rear panel is used toconnect the switch to a management device. The on-boardmenu-driven configuration program can be accessed from a terminal, a PCrunning a terminal emulation program, or from a rem...