Spantree Mst Region Max-Hops - Alcatel-Lucent 060321-10, Rev. B Cli Reference Manual

Distributed Spanning Tree Commands

spantree mst region max-hops

Configures the maximum number of hops that are authorized to receive Multiple Spanning Tree (MST)
regional information. Use this command to assign the maximum number of hops a BPDU is allowed to
traverse, before it is discarded and related information is aged out.
spantree mst region max-hops max_hops
Syntax Definitions
max_hops
Defaults
By default, the maximum number of hops is set to 20.
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
The value configured with this command is a regional value that applies to all instances and is used to
determine the size of the region.
•
The maximum hop count value is the initial value of the "remaining hops" parameter in the MST
BPDU that originates from the bridge that is serving as the root bridge for the region. Each bridge that
in turn receives the MST BPDU decrements the "remaining hops" count value by one and passes the
new value along to the next bridge. When the count reaches 0, the BPDU is discarded.
•
Specifying an MST maximum hop count is allowed regardless of which Spanning Tree operating mode
or protocol is currently active on the switch. However, MST configuration values only apply when the
switch is operating in the flat Spanning Tree mode and using the MSTP.
Examples
-> spantree mst region max-hops 40
Release History
Release 7.1.1; command introduced.
OmniSwitch CLI Reference Guide
A numeric value that designates the maximum number of hops.
March 2011
spantree mst region max-hops
page 5-11