Distributed Spanning Tree Commands
OmniSwitch 6250 CLI Reference Guide November 2009 page 16-17
bridge msti
Defines a Multiple Spanning Tree Instance (MSTI) number. This number identifies an association
between a range of VLANs and a single Spanning Tree instance. In addition, it is possible to assign an
optional name to the MSTI for further identification.
bridge msti msti_id [name name]
bridge no msti msti_id
bridge msti msti_id no name
Syntax Definitions
msti_id A numeric value (1–4094) that uniquely identifies an MSTI.
name An alphanumeric string up to 32 characters. Use quotes around string if
the name contains multiple words with spaces between them (e.g.
“Alcatel-Lucent Marketing”).
Defaults
By default, a flat mode Common and Internal Spanning Tree (CIST) instance always exists. The MSTI ID
number for this instance is 0.
Platforms Supported
OmniSwitch 6250
Usage Guidelines
• Use the no msti form of this command to remove the MSTI from the switch configuration.
• Use the no name form of this command to remove the optional MSTI name from the specified
instance. The instance itself is not removed; only the name.
• Up to 16 MSTIs are allowed per switch; select a number from 1 to 4094 for the MSTI number. In addi-
tion, there is always one Common and Internal Spanning Tree (CIST) instance 0 per switch. Initially
all VLANs are associated with the CIST instance.
• Creating an MSTI is allowed when the switch is operating in either the 1x1 or flat Spanning Tree
mode, as long as MSTP is the selected flat mode protocol. The MSTI configuration, however, is not
active unless the switch is running in the flat mode.
Examples
-> bridge msti 10
-> bridge msti 20 name BldgOneST10
-> bridge msti 20 no name
-> bridge no msti 10
Release History
Release 6.6.1; command was introduced.
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