Cisco IE 4000, Руководство по настройке программного обеспечения

Страница: 377 / 1066

373
Configuring Resilient Ethernet Protocol
How to Configure REP
6. rep block port { id port-id | neighbor_offset |
preferred } vlan { vlan-list | all }
(Optional) Configures VLAN load balancing on the primary edge port,
identify the REP alternate port in one of three ways, and configure the
VLANs to be blocked on the alternate port.

id port-id —Identifies 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.

neighbor_offset number—Identifies the alternate port as a
downstream neighbor from an edge port. The range is from
–256 to 256, with negative numbers indicating the downstream
neighbor from the secondary edge port. A value of
0 is invalid.
Enters -1 to identify the secondary edge port as the alternate
port. See Figure 55 on page 368 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.

preferred —Selects the regular segment port previously
identified as the preferred alternate port for VLAN load
balancing.

vlan vlan-list —Blocks one VLAN or a range of VLANs.

vlan all —Blocks all VLANs.
Note: Enter this command only on the REP primary edge port.
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.
8. rep lsl-age-timer value (Optional) Configures a time (in milliseconds) for which the REP
interface remains up without receiving a hello from a neighbor.
The range is from 120 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(52)SE or later, it only accepts values from 3000 to 10000 ms in
500-ms intervals. EtherChannel port channel interfaces do not
support LSL age-timer values less than 1000 ms.
9. end Returns to privileged EXEC mode.
Command Purpose