24-Port Fast Ethernet Switch Management Guide

S PANNING T REE A LGORITHM C ONFIGURATION
3-165
CLI – This example enables Spanning Tree Protocol, sets the mode to
MST, and then configures the STA and MSTP parameters.
Displaying Interface Settings
The STA Port Information and STA Trunk Information pages display the
current status of ports and trunks in the Spanning Tree.
Field Attributes
• Spanning Tree – Shows if STA has been enabled on this interface.
• STA Status – Displays current state of this port within the Spanning
Tree:
- Discarding - Port receives STA configuration messages, but does not
forward packets.
- Learning - Port has transmitted configuration messages for an interval
set by the Forward Delay parameter without receiving contradictory
information. Port address table is cleared, and the port begins learning
addresses.
- Forwarding - Port forwards packets, and continues learning
addresses.
The rules defining port status are:
- A port on a network segment with no other STA compliant bridging
device is always forwarding.
Console(config)#spanning-tree 4-206
Console(config)#spanning-tree backup-root 4-214
Console(config)#spanning-tree mode mstp 4-207
Console(config)#spanning-tree priority 40000 4-211
Console(config)#spanning-tree hello-time 5 4-209
Console(config)#spanning-tree max-age 38 4-210
Console(config)#spanning-tree forward-time 20 4-208
Console(config)#spanning-tree pathcost method long 4-212
Console(config)#spanning-tree transmission-limit 5 4-213
Console(config)#Console(config)#spanning-tree
mst-configuration 4-214
Console(config-mstp)#revision 1 4-218
Console(config-mstp)#name R&D 4-217
Console(config-mstp)#max-hops 30 4-218
Console(config-mstp)#