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Allied Telesis AT-GS950/8 From the State list, choose one of the following, Enabled, Disabled

Models: AT-GS950/8

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3.From the State list, choose one of the following:

AT-S82 Management Software User’s Guide

Note

Auto Speed/Duplex is disabled when you manually configure a port’s Speed/Duplex. In this situation, you must use a crossover Ethernet cable to connect that port to another network device.

2.To set the parameters for a port, choose the port using the From and To lists. You can select one port (From 2 To 2, for example) or a range of ports (From 1 To 5, for example).

3.From the State list, choose one of the following:

Enabled

The port is enabled. This is the default.

Disabled

The port is disabled.

4.From the Speed/Duplex list, select one of the following:

Auto - When you select this option, the switch automatically sets the speed and duplex mode of the port. The switch determines the highest possible common speed between the port and its end node, and sets the port to that setting. This helps ensure that the port and its end node are operating at the highest possible speed.

In order for a switch port to successfully autonegotiate its duplex mode with an end node, the end node should also be using autonegotiation. Otherwise, a duplex mode mismatch can occur. A switch port using autonegotiation defaults to half-duplex if it detects that the end node is not using autonegotiation. This results in a mismatch if the end node is operating at a fixed duplex mode of full-duplex.

To avoid this problem on the copper ports, when you connect an end node with a fixed duplex mode of full-duplex to a switch port, you should disable autonegotiation on the port and set the port’s speed and duplex mode manually.

If you think that a port and end node are not operating in the same duplex mode at a speed of 1000Mbps, you can configure the ports for Forced mode. To do this, you configure the switch port to be the master port (capable of sending detect and negotiate signals), and the end node as a slave port (capable of receiving negotiate signals).

Note

You cannot modify the speed or duplex mode of the SFP ports.

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Allied Telesis AT-GS950/8 manual From the State list, choose one of the following, Enabled, Disabled

Contents

Management Software For the AT-GS950/8 Layer 2 Gigabit Ethernet WebSmart Switch VersionUser’s Guide AT-S82Copyright 2007 Allied Telesis, Inc Contents Tagged Port Members Figures Figures ˆ “Where to Find Web-based Guides” on page PrefaceThis preface contains the following sections ˆ “Contacting Allied Telesis” on pagePreface Where to Find Web-based GuidesManagement Software Updates Online Support Email and Telephone Support Warranty ReturningContacting Allied Telesis Products Sales or Corporate InformationPreface Chapter Getting StartedStarting a Management Session AT-S82 Management Software User’s Guide Figure 2. Main PageSaving Changes To quit a management session, close the web browser Quitting a Management SessionChapter 1 Getting Started Chapter Basic Switch ParametersTo set the switch’s IP configuration, perform the following procedure a. In the IP Address field, enter the IP address. The default is Disabling or Enabling Ping Blocking EnabledDisabled Disabled Enabling or Disabling 802.1X Forwarding ControlEnabled Changing the Administrator’s Password Rebooting the Switch Resetting the Switch and Retaining the IP Address Figure 8. Reset System Page 2. Click Apply Downloading New Firmware ˆ “Configuring Port Parameters” on page Port ConfigurationChapter This chapter contains the following sectionConfiguring Port Parameters 3. From the State list, choose one of the following EnabledDisabled Fiber CopperEnabled DisabledChapter TrunkingTrunking Guidelines Trunking Algorithm Trunking Overviewˆ MAC-DA - destination MAC address distribution methods ˆ MAC-SA - source MAC addressˆ DAxorSA - destination MAC address/source MAC address AT-S82 Management Software User’s GuideMAC-SA Configuring the Trunking AlgorithmMAC-DA DAxorSASetting up the Trunk 5. Click Apply to implement your changes Chapter Port MirroringPort Mirroring Overview Configuring Port Mirroring Chapter 5 Port Mirroring Chapter VLANsIncreased Performance Improved Manageability Increased Security VLAN FeaturesAT-S82 Management Software User’s Guide VLAN Identifier VLAN Port Members VLAN OverviewTagged Port Members Incoming and Outgoing Tagged and Untagged FramesUntagged Port Members Incoming FramesGuidelines for Creating a VLAN Working with VLANs 2. Click Show All Static VLAN Entries Displaying all VLANsModifying a VLAN Deleting a VLAN Protected Ports VLAN 2. Determine which ports will be the Primary ports Figure 21. Protected Port PageThe box for the Primary ports should be empty 4. Click Apply AT-S82 Management Software User’s GuideChapter 6 VLANs Chapter Class of ServiceMapping Ports to Egress Queues Class of Service OverviewPort Priority Queue IEEE 802.1p Priority LevelMaximum Number of Port Egress QueuePackets exampleMapping Priorities to Queues Setting Up the Schedule Assigning Priority to Ports Chapter 7 Class of Service Chapter Spanning Tree Protocol STPBridge Priority and the Root Bridge Spanning Tree OverviewIncrement Path Costs and Port CostsBridge PriorityPort Cost Port SpeedPort Speed Port CostPort Priority Forwarding Delay and Topology ChangesPort Port SpeedHello Time and Bridge Protocol Data Units BPDUs Point-to-Point and Edge Ports Figure 26. Edge Port Spanning Tree and VLANs Chapter 8 Spanning Tree Protocol STP Configuring Spanning Tree STP Compatible RSTPWhen you select a value for maximum age, observe the following rules EnabledDisabled Disabled Configuring STP Port SettingsEnabled True FalseAuto FalseChapter 8 Spanning Tree Protocol STP