The default values for Ethernet connections are 2,000,000 (half duplex), 1,000,000 (full duplex), and 500,000 (aggregated link). The default values for Fast Ethernet connections are 200,000 (half duplex), 100,000 (full duplex), and 50,000 (aggregated link). The default values for Gigabit Ethernet connections are 10,000 (full duplex) and 5000 (aggregated link).

Note – When the Path Cost Method is set to short (page 3-76), the maximum path cost is 65,535.

Admin Link Type – The link type attached to the interface. The default is Auto.

Point-to-Point – A connection to exactly one other bridge.

Shared – A connection to two or more bridges.

Auto – The switch automatically determines if the interface is connected to a point-to-point link or to shared media.

Admin Edge Port – You can enable this option if an interface is connected to a LAN segment that is at the end of a bridged LAN or to an end node. Since end nodes cannot cause forwarding loops, they can pass directly through to the spanning tree forwarding state. Specifying Edge Ports provides quicker convergence for devices such as workstations or servers, retains the current forwarding database to reduce the amount of frame flooding required to rebuild address tables during reconfiguration events, does not cause the spanning tree to initiate reconfiguration when the interface changes state, and also overcomes other STA-related timeout problems. However, enable Edge Port only for ports connected to an end-node device. The default for NETP0 to NETP7 is disabled. The default for SNP0 to SNP15 is enabled and fixed at this setting.

Web Interface: Configuring STA Settings for a Port

To configure interface settings for STP (IEEE 802.1D):

1.Open Up Links / Down Links Spanning Tree Spanning Tree Protocol.

2.Select the required interfaces.

3.Click Configure.

4.Modify the required attributes.

5.Click Save.

3-130Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003

Page 168
Image 168
Sunfire B1600 manual Web Interface Configuring STA Settings for a Port