Virtual Private LAN Services
Page 382 7210 SAS-X, R6 OS Services Guide
mst-max-hops
Syntax mst-max-hops hops-count
no mst-max-hops
Context config>service>vpls>stp
Description This command specifies the number of hops in the region before BPDU is discarded and the
information held for the port is aged out. The root bridge of the instance sends a BPDU (or M-record)
with remaining-hop-count set to configured <max-hops>. When a bridge receives the BPDU (or M-
record), it decrements the received remaining-hop-count by 1 and propagates it in BPDU (or M-
record) it generates.
The no form of this command sets the hops-count to its default value.
Default 20
Parameters hops-count — Specifies the maximum number of hops.
Values 1 — 40
mst-name
Syntax mst-name region-name
no mst-name
Context config>service>vpls>stp
Description This command defines an MST region name. Two bridges are considered as a part of the same MST
region as soon as their configuration of the MST region name, the MST-revision and VLAN-to-
instance assignment is identical.
The no form of this command removes region-name from the configuration.
Default no mst-name
Parameters region-name — Specifies an MST-region name up to 32 characters in length.
mst-revision
Syntax mst-revision revision-number
Context config>service>vpls>stp
Description This command defines the MST configuration revision number. Two bridges are considered as a part
of the same MST region if their configured MST-region name, MST-revision, and VLAN-to-instance
are identical.
The no form of this command returns MST configuration revision to its default value.
Default 0
Parameters revision-number — Specifies the MSTP region revision number to define the MSTP region.
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