D
ISPLAYING

I

NTERFACE

S

ETTINGS

12-13

CLI – This example enables Spanning Tree Protocol, sets th e 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 31-3
Console(config)#spanning-tree mode mstp 31-4
Console(config)#spanning-tree priority 40000 31-8
Console(config)#spanning-tree hello-time 5 31-6
Console(config)#spanning-tree max-age 38 31-7
Console(config)#spanning-tree forward-time 20 31-5
Console(config)#spanning-tree pathcost method long 31-9
Console(config)#spanning-tree transmission-limit 4 31-10
Console(config)#spanning-tree mst-configuration 31-10
Console(config-mstp)#revision 1 31-14
Console(config-mstp)#name R&D 31-13
Console(config-mstp)#max-hops 30 31-14
Console(config-mstp)#