Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 498)

Applying the DSCP-to-traffic-class mapping to an interface
To activate a DSCP-to-Traffic Class mapping, perform the following steps from privileged EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Specify the Ethernet interface.
The gigabitethernet rbridge-id/slot/port operand is used only for the Brocade VDX 6710, Brocade
VDX 8770-4, and Brocade VDX 8770-8.
switch(config)# interface tengigabitethernet 1/1/2
3. Activate the DSCP-to-Traffic-Class mapping. In this case, "test" is the map name.
switch(conf-if-te-1/1/2)# qos dscp-traffic-class test
NOTE
To deactivate a DSCP-to-Traffic-Class map from an interface, enter no qos dscp-traffic-class
name.
4. Return to privileged EXEC mode.
switch(conf-if-te-1/1/2)# end
5. Enter the copy command to save the running-config file to the startup-config file.
switch# copy running-config startup-config
Verifying the DSCP-to-Traffic-Class mapping
To verify a DSCP-to-Traffic-Class mapping, you can use one or both of the following options from
global configuration mode.
• Verify the DSCP-Traffic-Class mapping for specific map by using the do show qos maps dscp-
traffic-class command and specifying a map name.
switch(config)# do show qos maps dscp-traffic-class test
• Verify all DSCP-Traffic-Class mapping with the just the do show qos maps command with the
dscp-traffic-class parameter only.
switch(config)# do show qos maps dscp-traffic-class
.
• Verify DSCP-to-Traffic-Class mapping for an interface by using the show qos interface command
and specifying the interface.
switch(config)# show qos interface te 1/1/2
Configuring congestion control
Refer also to Congestion control on page 472.
Changing the multicast tail-drop threshold
To change the tail drop threshold, perform the following steps from privileged EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Change the tail drop threshold for each multicast traffic class. In this example, a threshold of 1000
packets is used.
switch(config)# qos rcv-queue multicast threshold 1000 1000 1000 1000 1000 1000
1000 1000
3. Return to privileged EXEC mode.
switch(config)# end
4. Enter the copy command to save the running-config file to the startup-config file.
switch# copy running-config startup-config
Applying the DSCP-to-traffic-class mapping to an interface
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