Spanning-Tree Mst Port-Priority - Edge-Core ES3510MA-DC Management Manual

| Spanning Tree Commands
C 33
HAPTER
spanning-tree mst
port-priority
shown below. Path cost "0" is used to indicate auto-configuration mode.
When the short path cost method is selected and the default path cost
recommended by the IEEE 8021w standard exceeds 65,535, the default is
set to 65,535. The default path costs are listed in
C M
OMMAND ODE
Interface Configuration (Ethernet, Port Channel)
C U
OMMAND SAGE
◆ Each spanning-tree instance is associated with a unique set of VLAN
IDs.
This command is used by the multiple spanning-tree algorithm to
◆
determine the best path between devices. Therefore, lower values
should be assigned to interfaces attached to faster media, and higher
values assigned to interfaces with slower media.
◆ Use the no spanning-tree mst cost command to specify auto-
configuration mode.
Path cost takes precedence over interface priority.
◆
E
XAMPLE
Console(config)#interface Ethernet 1/5
Console(config-if)#spanning-tree mst 1 cost 50
Console(config-if)#
R C
ELATED OMMANDS

spanning-tree mst port-priority (802)

This command configures the interface priority on a spanning instance in
the Multiple Spanning Tree. Use the no form to restore the default.
S
YNTAX
spanning-tree mst instance-id port-priority priority
no spanning-tree mst instance-id port-priority
instance-id - Instance identifier of the spanning tree.
(Range: 0-4094, no leading zeroes)
priority - Priority for an interface. (Range: 0-240 in steps of 16)
D S
EFAULT ETTING
128
C M
OMMAND ODE
Interface Configuration (Ethernet, Port Channel)
– 802 –
Table 105 on page 797.