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Quality of Service: Managing Bandwidth More Effectively
Globally-Configured QoS
Figure 5-19. Configuring DSCP Policies in the DSCP Table
3. Assign the new policies to mark matching packets with the specified
codepoints.
Figure 5-20. Assigning DSCP Policies to Outbound Packets Based on the DSCP Codepoint from Upstream
Devices
HP Switch(config)# qos dscp-map 000010 priority 6 name 'Level 6'
HP Switch(config)# qos dscp-map 000101 priority 4 name 'Level 4'
HP Switch(config)# show qos dscp-map
DSCP -> 802.p priority mappings
DSCP CodePoint DSCP Value 802.1p tag DSCP Policy name
-------------- ---------- ----------- --------------------------------
000000 0 No-override
000001 1 No-override
000010 2 6 Level 6
000011 3 No-override
000100 4 No-override
000101 5 4 Level 4
. . .
HP Switch(config)# qos type-of-service diff-services 001100 dscp 000010
HP Switch(config)# qos type-of-service diff-services 001101 dscp 000101
HP Switch(config)# show qos type-of-service
Type of Service : Differentiated Services
Codepoint DSCP Policy | Priority
--------- ----------- + -----------
000000 | No-override
000001 | No-override
000010 | 6
000011 | No-override
000100 | No-override
000101 | 4
000110 | No-override
000111 | No-override
001000 | No-override
001001 | No-override
001010 | No-override
001011 | No-override
001100 000010 | 6
001101 000101 | 4
001110 | No-override
. . .
The specified DSCP policies
overwrite the original DSCPs in
matching packets, and use the
802.1p priorities configured in
the DSCP policies in step 2.