AT-9000 Switch Command Line User’s Guide
737
INSTANCE MSTI-ID PRIORITY
Syntax
instance msti-id priority
priority
Parameters
priority
Specifies a port priority. The range is 0 to 61440, in increments of
4096.
Mode
Interface Configuration mode
Description
Use this command to set the port priority for an MST instance (MSTI).
This command sets the value of the priority field contained in the port
identifier. The MST algorithm uses the port priority when determining the
root port for the switch in the MSTI. The port with the lowest value is
considered to have the highest priority and is chosen as the root port over
a port— equivalent in all other aspects— but with a higher priority value.
The default value is 32768. For information about MSTI, see “MSTI
Guidelines” on page 719.
The range is 0 to 61,440, in increments of 4,096. The range is divided into
the sixteen increments listed in Table 70. You specify the increment that
represents the bridge priority value you want to assign the switch. The
default value is 32,768 (increment 8).
Table 70. MSTP Bridge Priority Value Increments
Increment
Bridge
Priority
Increment
Bridge
Priority
0 0 8 32768
1 4096 9 36864
2 8192 10 40960
3 12288 11 45056
4 16384 12 49152
5 20480 13 53248
6 24576 14 57344
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