7.8.1.0 - Force10 Networks

Verify that EdgePort is enabled on a port using the show spanning-tree rstp command from the EXEC
privilege mode or the show config command from INTERFACE mode; Force10 recommends using the
show config command, as shown in Figure 457.
Figure 457 EdgePort Enabled on Interface
R1(conf-if-gi-2/0)#show config
!
interface GigabitEthernet 2/0
no ip address
switchport
spanning-tree rstp edge-port
shutdown
Force10(conf-if-gi-2/0)#
Influence RSTP Root Selection
Indicates the interface is in EdgePort mode
The Rapid Spanning Tree Protocol determines the root bridge, but you can assign one bridge a lower
priority to increase the likelihood that it will be selected as the root bridge.
To change the bridge priority, use the following command:
Task Command Syntax Command Mode
Assign a number as the bridge priority or designate it as
the primary or secondary root.
priority-value range: 0 to 65535. The lower the number
assigned, the more likely this bridge will become the
root bridge. The default is 32768. Entries must be
multiples of 4096.
A console message appears when a new root bridge has been assigned. Figure 458 shows the console
message after the bridge-priorty command is used to make R2 the root bridge.
Figure 458 bridge-priority Command Example
Force10(conf-rstp)#bridge-priority 4096
04:27:59: %RPM0-P:RP2 %SPANMGR-5-STP_ROOT_CHANGE: RSTP root changed. My Bridge ID:
4096:0001.e80b.88bd Old Root: 32768:0001.e801.cbb4 New Root: 4096:0001.e80b.88bd
Old root bridge ID
bridge-priority priority-value PROTOCOL
SPANNING TREE
RSTP
New root bridge ID
FTOS Configuration Guide, version 7.8.1.0 673