Spantree Priority - Alcatel-Lucent 060321-10, Rev. B Cli Reference Manual

Distributed Spanning Tree Commands

spantree priority

Configures the bridge priority value for the Common and Internal Spanning Tree (CIST) instance, a Multi-
ple Spanning Tree Instance (MSTI), or a VLAN instance. This command is also used to configure the
priority value for a port or link aggregate associated with the CIST, an MSTI, or a VLAN.
spantree [cist | msti msti_id | vlan vlan_id] [port slot/port[-port2] | linkagg linkagg_id[-linkagg_id2]]
priority priority
Syntax Definitions
cist
msti_id
vlan_id
slot/port[-port2]
linkagg_id[-linkagg_id2]
priority
Defaults
•
By default, the bridge priority value is set to 32768 for the CIST, an MSTI, and a VLAN instance.
•
By default, the port or link aggregate priority value is set to 7.
parameter
cist | msti msti_id | vlan vlan_id cist
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
The bridge priority is used to determine which bridge the Spanning Tree algorithm designates as the
root bridge. The port priority value is used to determine the most favorable port when a bridge has
multiple ports with the same path cost to the root bridge.
•
The lower the bridge or port priority number assigned, the higher the priority that is associated with the
bridge or port.
OmniSwitch CLI Reference Guide
The CIST instance (also known as MSTI 0). This parameter is config-
urable in both modes (flat or per-VLAN).
An existing MSTI ID number. If MSTI 0 is specified, the priority
applies to the CIST instance. This parameter is configurable in both
modes (flat or per-VLAN) but only if the flat mode protocol is set to
MSTP.
An existing VLAN ID number. This parameter is configurable in both
modes (flat or per-VLAN).
The slot number and port number of the physical port. Use a hyphen to
specify a range of ports (4/1-8).
The link aggregate ID number. Use a hyphen to specify a range of IDs
(10-20).
A bridge or port priority value. The valid range for the bridge priority is
0–65535. The valid range for the port priority is 0–15. If MSTP is the
active flat mode protocol, enter a value that is a multiple of 4096 (for
example, 4096, 8192, 12288).
default
March 2011
spantree priority
page 5-17