Displaying interface settings, Displaying interface settings -154, Command attributes – SMC Networks SMC TigerStack III SMC6824MPE User Manual
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C
ONFIGURING
THE
S
WITCH
3-154
CLI – This example enables Spanning Tree Protocol, and then sets the
indicated attributes.
Displaying Interface Settings
The STP Port Information and STP Trunk Information pages display the
current status of ports and trunks in the Spanning Tree.
Command Attributes
The following attributes are read-only and cannot be changed:
•
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.
- If two ports of a switch are connected to the same segment and
there is no other STA device attached to this segment, the port with
the smaller ID forwards packets and the other is discarding.
- All ports are discarding when the switch is booted, then some of
them change state to learning, and then to forwarding.
Console(config)#spanning-tree
Console(config)#spanning-tree mode
Console(config)#spanning-tree priority 40000
Console(config)#spanning-tree hello-time 5
Console(config)#spanning-tree max-age 38
Console(config)#spanning-tree forward-time 20
Console(config)#spanning-tree pathcost method long
Console(config)#spanning-tree transmission-limit 5
Console(config)#