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

Table Of Contents
58 Converged Enhanced Ethernet Administrator’s Guide
53-1001258-01
STP, RSTP, and MSTP configuration procedures
4
To enable the guard root on a CEE interface, perform the following steps:
Specifying the hello time
From the CEE interface, use this command to set the time interval between BPDUs sent by the root
switch. Changing the hello-time affects all spanning-tree instances. The max-age setting must be
greater than the hello-time setting (see “Specifying the bridge maximum aging time” on page 49).
This command is only for MSTP.
To specify the hello time on a 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. Enable the guard root on a CEE interface. By
default, guard root is disabled.
switch(conf-if-te-0/1)#spanning-tree
guard root
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. Specify the hello time on a CEE interface. The range
is 1 through 10 seconds. The default is 2 seconds.
switch(conf-if-te-0/1)#spanning-tree
hello-time seconds
5. Display the spanning-tree configuration. switch(conf-stp)#do show
spanning-tree