Network Router User Manual

42-106
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 42 Configuring PFC QoS
Configuring PFC QoS
Mapping CoS Values to Strict-Priority Queues
To map CoS values to the receive and transmit strict-priority queues, perform this task:
When mapping CoS values to the strict-priority queues, note the following information:
• The queue number is always 1.
• You can enter up to 8 CoS values to map to the queue.
This example shows how to map CoS value 7 to the strict-priority queues on Gigabit Ethernet port 1/1:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface gigabitethernet 1/1
Router(config-if)# priority-queue cos-map 1 7
Router(config-if)# end
Router#
This example shows how to verify the configuration:
Router# show queueing interface gigabitethernet 1/1
<...Output Truncated...>
Transmit queues [type = 1p2q2t]:
<...Output Truncated...>
queue thresh cos-map
---------------------------------------
1 1 0 1
1 2 2 3
2 1 4
2 2 6
3 1 5 7
Receive queues [type = 1p1q4t]:
<...Output Truncated...>
queue thresh cos-map
---------------------------------------
1 1 0 1
1 2 2 3
1 3 4
1 4 6
2 1 5 7
<...Output Truncated...>
Router#
Command Purpose
Step 1
Router(config)# interface type
1
slot/port
1. type = fastethernet, gigabitethernet, or tengigabitethernet
Selects the interface to configure.
Step 2
Router(config-if)# priority-queue cos-map queue_#
cos1 [cos2 [cos3 [cos4 [cos5 [cos6 [cos7
[cos8]]]]]]]
Maps CoS values to the receive and transmit
strict-priority queues.
Router(config-if)# no priority-queue cos-map
Reverts to the default mapping.
Step 3
Router(config-if)# end
Exits configuration mode.
Step 4
Router# show queueing interface type
1
slot/port
Verifies the configuration.