41-101
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 41 Configuring PFC QoS
Configuring PFC QoS
Configuring the Port to Trust DSCP
To configure the port to trust DSCP perform this task:
This example shows how to configure 10-Gigabit Ethernet port 6/1 port 6/1 to trust received DSCP
values:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface gigabitethernet 6/1
Router(config-if)# mls qos trust dscp
Router(config-if)# end
Router#
This example shows how to verify the configuration:
Router# show queueing interface gigabitethernet 6/1 | include Trust state
Trust state: trust DSCP
Mapping DSCP Values to Standard Receive-Queue Thresholds
To map DSCP values to the standard receive-queue thresholds, perform this task:
When mapping DSCP values, note the following information:
• You can enter up to 8 DSCP values that map to a queue and threshold.
• You can enter multiple commands to map additional DSCP values to the queue and threshold.
• You must enter a separate command for each queue and threshold.
Command Purpose
Step 1
Router(config)# interface tengigabitethernet
slot/port
Selects the interface to configure.
Step 2
Router(config-if)# mls qos trust dscp
Configures the port to trust received DSCP values.
Router(config-if)# no mls qos trust
Reverts to the default trust state (untrusted).
Step 3
Router(config-if)# end
Exits configuration mode.
Step 4
Router# show queueing interface tengigabitethernet
slot/port
| include Trust state
Verifies the configuration.
Command Purpose
Step 1
Router(config)# interface tengigabitethernet
slot/port
Selects the interface to configure.
Step 2
Router(config-if)# rcv-queue dscp-map
queue_#
threshold_# dscp1
[
dscp2
[
dscp3
[
dscp4
[
dscp5
[
dscp6
[
dscp7
[
dscp8
]]]]]]]
Maps DSCP values to the standard receive queue
thresholds.
Router(config-if)# no rcv-queue dscp-map
Reverts to the default mapping.
Step 3
Router(config-if)# end
Exits configuration mode.
Step 4
Router# show queueing interface
tengigabitethernet
slot/port
Verifies the configuration.
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