Manuals / Allied Telesis / Computer Equipment / Switch

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

Models: AT-GS950/8

1 76

Download 76 pages 23.63 Kb

Page 67

Point-to-Point and Edge Ports

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.

67

Image 67

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

Contents

AT-S82 For the AT-GS950/8 Layer 2 Gigabit Ethernet WebSmart Switch VersionManagement Software User’s GuideCopyright 2007 Allied Telesis, Inc Contents Tagged Port Members Figures Figures ˆ “Contacting Allied Telesis” on page Prefaceˆ “Where to Find Web-based Guides” on page This preface contains the following sectionsPreface Where to Find Web-based GuidesProducts Sales or Corporate Information Online Support Email and Telephone Support Warranty ReturningManagement Software Updates Contacting Allied TelesisPreface 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 Disabled EnabledDisabling or Enabling Ping Blocking Enabled Enabling or Disabling 802.1X Forwarding ControlDisabled 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 This chapter contains the following section Port Configurationˆ “Configuring Port Parameters” on page ChapterConfiguring Port Parameters Disabled Enabled3. From the State list, choose one of the following Disabled CopperFiber EnabledChapter TrunkingTrunking Guidelines Trunking Algorithm Trunking OverviewAT-S82 Management Software User’s Guide distribution methods ˆ MAC-SA - source MAC addressˆ MAC-DA - destination MAC address ˆ DAxorSA - destination MAC address/source MAC addressDAxorSA Configuring the Trunking AlgorithmMAC-SA MAC-DASetting 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 OverviewIncoming Frames Incoming and Outgoing Tagged and Untagged FramesTagged Port Members Untagged Port MembersGuidelines 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 AT-S82 Management Software User’s Guide Figure 21. Protected Port Page2. Determine which ports will be the Primary ports The box for the Primary ports should be empty 4. Click ApplyChapter 6 VLANs Chapter Class of ServiceMapping Ports to Egress Queues Class of Service OverviewPort Priority Queue IEEE 802.1p Priority Levelexample Port Egress QueueMaximum Number of PacketsMapping 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 OverviewPriority Path Costs and Port CostsIncrement BridgePort Cost Port SpeedPort Cost Port SpeedPort Speed Forwarding Delay and Topology ChangesPort Priority PortHello 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 Enabled RSTPSTP Compatible When you select a value for maximum age, observe the following rulesDisabled Enabled Configuring STP Port SettingsDisabled False FalseTrue AutoChapter 8 Spanning Tree Protocol STP