Cisco Small Business 200 Series

Spanning Tree Protocol
Cisco Small Business 200E Series Advanced Smart Switch Command Reference 268
5
no spanning-tree mst mstid
Syntax Descriptions
Default
• cost—auto
• external-cost—auto
• port-priority—28
Command Modes
Interface Config
Parameter Description
mstid A parameter that corresponds to an existing multiple
spanning tree instance. The configurations are applied to
that multiple spanning tree instance.
If you specify 0 (defined as the default CIST ID) as the
mstid, the configurations are applied to the single
spanning tree of STP and RSTP, or the CIST of MSTP
depending on the configured spanning tree mode. If the
spanning tree mode is STP or RSTP, mstid must be 0.
cost | auto Sets the Port Path Cost of this port for the spanning tree or
spanning tree instance depending on the spanning tree
mode and mstid parameter. You can set the path cost as a
number in the range of 1 to 200000000 or auto. If you
select auto, the path cost value is set based on Link
Speed.
external-cost |
auto
Sets the External Port Path Cost for MST instance 0; i.e.,
CIST instance. You can set the external cost as a number in
the range of 1 to 200000000 or auto. If you specify auto,
the external path cost value is set based on Link Speed.
The External Port Path Cost is applicable only when the
panning tree mode is mstp.
port-priority Sets the priority of the port for the spanning tree or
spanning tree instance depending on the spanning tree
mode and the mstid parameter. The port-priority value is a
number in the range of 0 to 240 in increments of 16.