RSTP Configuration Example 557
Configuration Procedure
1 Configure Switch A
a Enable RSTP globally.
[SW5500]stp enable
b The port RSTP defaults are enabled after global RSTP is enabled. You can disable
RSTP on those ports that are not involved in the RSTP calculation, however, be
careful and do not disable those involved. (The following configuration takes
GigabitEthernet 1/0/4 as an example.)
[SW5500]interface gigabitethernet 2/0/4
[SW5500-GigabitEthernet2/0/4]stp disable
c To configure Switch A as a root, you can either configure the Bridge priority of it as
0 or simply use the command to specify it as the root.
Set the Bridge priority of Switch A to 0
[SW5500]stp priority 0
d Designate Switch A as the root, using the following command.
[SW5500]stp root primary
e Enable the Root protection function on every designated port.
[SW5500]interface Gigabitethernet 2/0/1
[SW5500-GigabitEthernet2/0/1]stp root-protection
[SW5500]interface Gigabitethernet 2/0/2
[SW5500-GigabitEthernet2/0/2]stp root-protection
2 Configure Switch B
a Enable RSTP globally.
[SW5500]stp enable
b The port RSTP defaults are enabled after global RSTP is enabled. You can disable
RSTP on those ports that are not involved in RSTP calculation, however, be careful
and do not disable those involved. (The following configuration takes Ethernet
1/0/4 as an example.)
[SW5500]interface Ethernet 1/0/4
[SW5500-Ethernet1/0/4]stp disable
c Configure Switch C and Switch B to serve as standby of each other and sets the
Bridge priority of Switch B to 4096.
[SW5500]stp priority 4096
d Enable the Root protection function on every designated port.
[SW5500]interface Ethernet 1/0/1
[SW5500-Ethernet1/0/1]stp root-protection
[SW5500]interface Ethernet 1/0/2
[SW5500-Ethernet1/0/2]stp root-protection
[SW5500]interface Ethernet 1/0/3
[SW5500-Ethernet1/0/3]stp root-protection
RSTP operating mode, time parameters, and port parameters take default values.
3 Configure Switch C
a Enable RSTP globally.
[SW5500]stp enable
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