Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring MSTP (Rev. 03)
Overview
© 2008 Foundry Networks, Inc
Page 30 of 70
To specify a list of VLANs, use a comma. The list must be entered in increasing order of ID
numbers. For example,
instance 1 vlan 10, 20, 30
maps VLANs 10, 20, and 30 to MST instance 1.
By default all VLANs are mapped to instance 0.
Command Syntax
device-name
(cfg protocol mstp)#
instance
<
instance-id
>
vlan
VLAN-LIST
device-name
(cfg protocol mstp)#
no instance
<
instance-id
>
Argument Description
instance-id
The MST instance ID. The range is 0 to 15.
VLAN-LIST
The list of VLANs to add to the instance mapping. The range of values is
<1-4093>.
Setting the Bridge Priority
The
mstp priority
command, in Protocol Configuration mode, sets the bridge priority for an MST
instance. The
no
form of this command resets the switch priority for the MST instance to its
default value.
NOTE
When using Fast Ring Border Bridge mode you cannot set any bridge priority to 0
or 4096.
By default, the MSTP priority is 32768.
Command Syntax
device-name
(cfg protocol)#
mstp
<
instance-id
>
priority
<
priority
>
device-name
(cfg protocol)#
no mstp
<
instance-id
>
priority
Argument Description
instance-id
The MST instance ID. The range is 0 to 15.
priority
<
priority
>
Determines the likelihood that the switch will be chosen as the root switch.
The range is 0 (highest likelihood) to 61440 (lowest likelihood) at increments
of 4096.
The valid priority values are 0, 4096, 8192, 12288, 16384, 20480, 24576,
28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344, and 61440. All
other values are rejected.
Configuring the MSTP Interface Parameters
Table 7
lists the MSTP interface configuration commands.