Spanning-Tree Mst Instance Restricted-Tcn - Allied Telesis AR2050V Command Reference Manual

S T C
PANNING REE OMMANDS
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SPANNING TREE MST INSTANCE RESTRICTED

spanning-tree mst instance restricted-tcn

Overview Use this command to prevent a switch port from propagating received topology
change notifications and topology changes to other switch ports. This is named
restricted TCN (Topology Change Notification). A TCN is a simple Bridge Protocol
Data Unit (BPDU) that a bridge sends out to its root port to signal a topology
change.
Use the no variant of this command to stop preventing the switch port from
propagating received topology change notifications and topology changes to
other switch ports for the specified MSTI (Multiple Spanning Tree Instance).
The restricted TCN setting applies only to the specified MSTI (Multiple Spanning
Tree Instance).
spanning-tree mst instance <instance-id> restricted-tcn
Syntax
no spanning-tree mst instance <instance-id> restricted-tcn
Default Disabled. By default, switch ports propagate TCNs.
Mode Interface Configuration mode for a switch port interface only.
Examples To prevent a switch port from propagating received topology change notifications
and topology changes to other switch ports, use the commands:
awplus#
awplus(config)#
awplus(config-if)#
To stop preventing a switch port from propagating received topology change
notifications and topology changes to other switch ports, use the commands:
awplus#
awplus(config)#
awplus(config-if)#
restricted-tcn
Related instance vlan (MSTP)
Commands
spanning-tree priority (port priority)
spanning-tree mst instance
spanning-tree mst instance path-cost
spanning-tree mst instance restricted-role
C613-50186-01 Rev B
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TCN
Parameter Description
<instance-id> Specify an MSTP instance in the range 1-5. The MST instance must
have already been created using the
command.
configure terminal
interface port1.0.2
configure terminal
interface port1.0.2
Command Reference for AR2050V
AlliedWare Plus™ Operating System - Version 5.4.7-1.x
spanning-tree mst instance 3 restricted-tcn
no spanning-tree mst instance 3
instance vlan (MSTP)
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