Virtual Private LAN Services
Page 402 7210 SAS M Services Guide
mst-port-priority
Syntax mst-port-priority stp-priority
no mst-port-priority
Context config>service>vpls>sap>stp>mst-instance
Description This commands specifies the port priority within a given instance. If a loop occurs, this parameter
indicates the probability of a given port being assigned a forwarding state.
The no form of this command sets port-priority to its default value.
Default 128
Parameters stp-priority — Specifies the value of the port priority field.
max-age
Syntax max-age seconds
no max-age
Context config>service>vpls>stp
config>template>vpls-template>stp
Description This command indicates how many hops a BPDU can traverse the network starting from the root
bridge. The message age field in a BPDU transmitted by the root bridge is initialized to 0. Each other
bridge will take the message_age value from BPDUs received on their root port and increment this
value by 1. The message_age thus reflects the distance from the root bridge. BPDUs with a message
age exceeding max-age are ignored.
STP uses the max-age value configured in the root bridge. This value is propagated to the other
bridges via the BPDUs.
The no form of this command returns the max ageto the default value.
Default 20 seconds
Parameters seconds — The max info age for the STP instance in seconds. Allowed values are integers in the
range 6 to 40.
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