Brocade Converged Enhanced Ethernet Administrator's Guide v6.1.2_cee (53-1001258-01, June 2009)

62 Converged Enhanced Ethernet Administrator’s Guide
53-1001258-01
STP, RSTP, and MSTP configuration procedures
4
Restricting the port from becoming a root port
From the CEE interface, use this command to restrict a port from becoming a root port.
To restrict a CEE interface from becoming a root port, perform the following steps:
Restricting the topology change notification
From the CEE interface, use this command to restrict the topology change notification BPDUs sent
on the interface.
To restrict the topology change notification BPDUs sent on the CEE interface, perform the following
steps:
Step Task Command
1. Enter global configuration mode. switch>#config t
Enter configuration commands, one
per line. End with CNTL/Z.
switch(config)#
2. Specify the CEE interface (interface 0/1 is used in
this example).
switch(config)#interface
tengigabitethernet 0/1
switch(conf-if-te-0/1)#
3. Enable the CEE interface. switch(conf-if-te-0/1)#no shutdown
switch(conf-if-te-0/1)#
4. Restrict the CEE interface from becoming a root
port. The default is to allow the CEE interface to
become a root port.
switch(conf-if-te-0/1)#spanning-tree
restricted-role
5. Display the spanning-tree configuration. switch(conf-stp)#do show
spanning-tree
Step Task Command
1. Enter global configuration mode. switch>#config t
Enter configuration commands, one
per line. End with CNTL/Z.
switch(config)#
2. Specify the CEE interface (interface 0/1 is used in
this example).
switch(config)#interface
tengigabitethernet 0/1
switch(conf-if-te-0/1)#
3. Enable the CEE interface. switch(conf-if-te-0/1)#no shutdown
switch(conf-if-te-0/1)#
4. Restrict the topology change notification BPDUs
sent on the CEE interface. By default, the restriction
is disabled.
switch(conf-if-te-0/1)#spanning-tree
restricted-tcn
5. Display the spanning-tree configuration. switch(conf-stp)#do show
spanning-tree