SMC Networks SMC6724L3 manual Ad B

CONFIGURING THE SWITCH

•Designated Cost – The cost for a packet to travel from this port to the root in the current Spanning Tree configuration. The slower the media, the higher the cost.

•Designated Bridge – The bridge priority and MAC address of the device through which this port must communicate to reach the root of the Spanning Tree.

•Designated Port – The port priority and number of the port through which this switch, acting as a designated bridge, communicates with the attached LAN or host device.

•Oper Link Type – The operational point-to-point status of the LAN segment attached to this interface. This parameter is determined by manual configuration or by auto-detection, as described for Admin Link Type in STA Port Configuration on page 3-99.

•Oper Edge Port – This parameter is initialized to the setting for Admin Edge Port in STA Port Configuration on page 3-99(i.e., true or false), but will be set to false if a BPDU is received, indicating that another bridge is attached to this port.

•Port Role – Roles are assigned according to whether the port is part of the active topology connecting the bridge to the root bridge (i.e., root port), connecting a LAN through the bridge to the root bridge (i.e., designated port); or is an alternate or backup port that may provide connectivity if other bridges, bridge ports, or LANs fail or are removed. The role is set to disabled (i.e., disabled port) if a port has no role within the spanning tree.

Alternate port receives more useful BPDUs from another bridge and is therefore not selected as the designated

port.R

R: Root Port

A:Alternate Port

D:Designated Port

B:Backup Port

R

AD B

x

3-96