16-11
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 16 Configuring Resilient Ethernet Protocol
Configuring REP
Enter the no form of each command to return to the default configuration. Enter the show rep topology
privileged EXEC command to see which port in the segment is the primary edge port.
Step 6
rep block port {id port-id | neighbor_offset |
preferred} vlan {vlan-list | all}
(Optional) Configure VLAN load balancing on the primary edge
port, identify the REP alternate port, and configure the VLANs to be
blocked on the alternate port.
•
Enter the id port-id to identify the alternate port by port ID. The
port ID is automatically generated for each port in the segment.
You can view interface port IDs by entering the show interface
interface-id rep [detail] privileged EXEC command.
•
Enter a neighbor_offset number to identify the alternate port as
a downstream neighbor from an edge port. The range is from
–256 to 256, with negative numbers identifying the downstream
neighbor from the secondary edge port. A value of 0 is invalid.
Enter -1 to identify the secondary edge port as the alternate port.
See
Figure 16-4 on page 16-5
for an example of neighbor offset
numbering.
Note
Because you enter this command at the primary edge port
(offset number 1), you would never enter an offset value of 1
to identify an alternate port.
•
Enter preferred to select the regular segment port previously
identified as the preferred alternate port for VLAN load
balancing.
•
Enter vlan vlan-list to block one VLAN or a range of VLANs.
•
Enter vlan all to block all VLANs.
Note
Enter this command only on the REP primary edge port.
Step 7
rep preempt delay seconds
(Optional) You must enter this command and configure a preempt
time delay if you want VLAN load balancing to automatically trigger
after a link failure and recovery. The time delay range is 15 to 300
seconds. The default is manual preemption with no time delay.
Note
Enter this command only on the REP primary edge port.
Step 8
rep lsl-age-timer value
(Optional) Configure a time (in milliseconds) for which the REP
interface remains up without receiving a hello from a neighbor. The
range is from 920 to 10000 ms in 40-ms increments; the default is
5000 ms (5 seconds).
Note
If the neighbor device is not running Cisco IOS Release
12.2()SE or later, it will only accept values from 3000 to
10000 ms in 500 ms increments.
EtherChannel port channel interfaces do not support LSL
age-timer values less than 1000 ms.
Step 9
end
Return to privileged EXEC mode.
Step 10
show interface [interface-id] rep [detail]
Verify the REP interface configuration.
Step 11
copy running-config startup config
(Optional) Save your entries in the switch startup configuration file.
Command
Purpose
