Allied Telesis AT-GS950/8 manual Point-to-Point and Edge Ports

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AT-S82 Management Software User’s Guide

Point-to-Point and Edge Ports

Note

This section applies only to RSTP.

Part of the task of configuring RSTP is defining the port types on the bridge. This relates to the device(s) connected to the port. With the port types defined, RSTP can reconfigure a network much quicker than STP when a change in network topology is detected.

There are two possible selections:

Point-to-point port

Edge port

If a bridge port is operating in full-duplex mode, than the port is functioning as a point-to-point port. Figure 25 illustrates two AT-GS950/8 WebSmart switches that have been connected with one data link. With the link operating in full-duplex, the ports are point-to-point ports.

912

Point-to-Point Ports

(Full-duplex Mode)

912

Figure 25. Point-to-Point Ports

If a port is operating in half-duplex mode and is not connected to any further bridges participating in STP or RSTP, then the port is an edge port. Figure 26 illustrates an edge port on an AT-GS950/8 WebSmart switch. The port is connected to an Ethernet hub, which in turn is connected to a series of Ethernet workstations. This is an edge port because it is connected to a device operating at half-duplex mode and there are no participating STP or RSTP devices connected to it.

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Contents Management Software Page Contents Contents Figures Figures Preface Where to Find Web-based Guides Contacting Allied Telesis Management Software UpdatesPreface Chapter Getting StartedStarting a Management Session Main Saving Changes Save Configuration Click ApplyQuitting a Management Session Getting Started Basic Switch Parameters Basic Switch Parameters AT-S82 Management Software User’s Guide Disabled EnabledDisabling or Enabling Ping Blocking Enabling or Disabling 802.1X Forwarding Control Changing the Administrator’s Password Rebooting the Switch Reset Click Apply Switch is reset Resetting the Switch and Retaining the IP AddressAT-S82 Management Software User’s Guide Download Status Message Downloading New FirmwarePort Configuration Configuring Port Parameters Port is enabled. This is the default Fiber CopperTrunking Trunking Guidelines Trunking Algorithm Trunking OverviewAT-S82 Management Software User’s Guide DAxorSA Configuring the Trunking AlgorithmPort Trunking Configuration Setting up the TrunkTrunking Port Mirroring Port Mirroring Overview Configuring Port Mirroring Port Mirroring VLANs Increased Performance Improved Manageability Security Vlan FeaturesAT-S82 Management Software User’s Guide Vlan Identifier Vlan Port Members Vlan OverviewIncoming Outgoing Tagged Untagged Frames Guidelines for Creating a Vlan Vlan Detail Working with VLANsClick Show All Static Vlan Entries Displaying all VLANsVlan Protected Ports Vlan Example Protected Ports VlanAT-S82 Management Software User’s Guide VLANs Class of Service Mapping Ports to Egress Queues Class of Service OverviewIeee 802.1p Priority Level Port Priority Queue Port Egress Queue Maximum Number Packets Mapping Priorities to Queues Setting Up the Schedule Assigning Priority to Ports Class of Service Spanning Tree Protocol STP Bridge Priority Root Spanning Tree OverviewIncrement Bridge Priority Path Costs and Port CostsPort Speed Port Cost Increment Port Priority Port PriorityHello Time and Bridge Protocol Data Units BPDUs Point-to-Point and Edge Ports Edge Port Spanning Tree and VLANs Spanning Tree Protocol STP Configuring Spanning Tree STP Compatible RstpDisabled Configuring STP Port Settings Auto YesFalse TrueSpanning Tree Protocol STP

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