Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring MSTP (Rev. 03)
Overview
© 2008 Foundry Networks, Inc
Page 29 of 70
AGN
Specifies the preferred ring link aggregation interface's name, where
N1
represents the LAG ID number.
Defining the Learning/Flushing Approach in MSTP Fast-ring
The
mstp learn-mode
command, in Protocol Configuration mode, defines the mode in which the
mac-addresses are learned/flushed. By default, the Learn mode is standard.
By default, learning/flushing is permanently enabled.
Command Syntax
device-name
(cfg protocol)#
mstp learn-mode
{
none
|
temporary-disabled
[<
2-
100
>]
|
standard
}
Argument Description
none
Defines permanently disabled learning on non-edge/ring ports.
temporary-disabled
Enables learning, except for cases where an MSTP topology change
occurs. During the MSTP topology change learning is temporarily
disabled for the specified time period.
standard
Defines permanently enabled learning on non-edge/ring ports.
2-100
(Optional). Defines how long learning will be disabled after a
topology change has occurred, in seconds.
Configuring MSTI Parameters
Table 6
lists the MSTI configuration commands.
Table 6: MSTI Configuration Commands
Command
Description
instance vlan
Maps an MSTP instance to a VLAN.
mstp priority
Sets the MSTP priority.
Mapping an MST Instance to a VLAN
The
instance vlan
command, in Protocol MSTP Configuration mode, maps VLANs to an MST
instance. The
no
form of this command unmaps all the VLANs that were mapped to an MST
instance and restores their membership in instance 0.
The application software supports up to 16 instances. Each spanning tree instance is identified by
an instance ID that ranges from 0 to 15. Instance 0 is mandatory and is always present. Instances 1
through 15 are optional.
When you map VLANs to an MST instance, the specified VLANs are added to or removed from
the existing list.
To specify a VLAN range, use a hyphen. For example,
instance 1 vlan 1-63
maps VLANs 1
through 63 to MST instance 1.