Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 416)

NOTE
Port fast only needs to be enabled on ports that connect to workstations or PCs. Repeat these
commands for every port connected to workstations or PCs. Do not enable port fast on ports that
connect to other switches.
NOTE
Enabling port fast on ports can cause temporary bridging loops, in both trunking and nontrunking
mode.
switch(config)# interface tengigabitethernet 0/10
switch(conf-if-te-0/10)# spanning-tree portfast
switch(conf-if-te-0/10)# exit
switch(config)# interface tengigabitethernet 0/11
switch(conf-if-te-0/11)# spanning-tree portfast
switch(conf-if-te-0/11)# exit
switch(config)#
Repeat these commands for every port connected to workstations or PCs.
11.Specify port priorities by using the spanning-tree priority command to influence the selection of
root/designated ports on the following:
• All ports of the root switch
• The root port
• The designated port
For details, refer to Specifying the port priority (DCB) on page 429.
12.Enable the guard root feature with the spanning-tree guard root command. The guard root feature
provides a way to enforce the root bridge placement in the network. For detailed information, refer
to
Enabling guard root (DCB) on page 426.
All other switch ports connected to other switches and bridges are automatically placed in blocking
mode.
This does not apply to ports connected to workstations or PCs; these ports remain in the forwarding
state.
13.Return to privileged EXEC mode.
switch(config)# end
14.Enter the copy command to save the running-config file to the startup-config file.
switch# copy running-config startup-config
Configuring MSTP
The basic process for configuring MSTP is as follows.
1. Enter the configure terminal command to change to global configuration mode.
switch# configure terminal
2. Enable MSTP by using the global protocol spanning-tree command. Refer to Enabling STP,
RSTP, MSTP, PVST+ or R-PVST+ on page 419 for more details.
switch(config)# protocol spanning-tree mstp
3. Specify the region name by using the region region_name command. Refer to Specifying a name
for an MSTP region on page 418 for more details.
switch(config-mstp)# region brocade1
4. Specify the revision number by using the revision command. Refer to Specifying a revision number
for MSTP configuration on page 418 for more details.
switch(config-mstp)# revision 1
Configuring MSTP
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