Users Guide
• Queuing policies must be applied in the output direction on physical interfaces or on system-qos mode.
• Application type policy-map must be applied on system-qos mode.
When a policy is applied on system, the policy is eective on all the ports in the system. However, interface level policy gets
precedence over system level policy.
Ingress trac classication
Ingress trac can be either data trac or control trac.
By default, OS10 does not classify data trac and assigns the default trac class ID 0 to all data trac.
OS10 implicitly classies all control trac like STP, OSPF, ICMP, and so on, and forwards the trac to control plane applications.
Data trac classication
You can classify the data trac based on ACL or trust.
ACL based classication consumes signicant amount of network processor resources. Trust based classication allows to classify trac in
a pre-dened way without using any network processor resources.
Trust based classication
OS10 supports classication based on the 802.1p CoS eld (L2) or DSCP eld (L3).
802.1p CoS trust map:
Trust the 802.1p CoS eld to mark with a trac-class ID and color for the CoS ow.
Table 9. Default 802.1p CoS trust map
CoS Trac class ID Color
0 1 G
1 0 G
2 2 G
3 3 G
4 4 G
5 5 G
6 6 G
7 7 G
User–dened 802.1p CoS trust map
You can override the default mapping by creating dot1p trust map. All the unspecied dot1p entries are mapped to the default trac class
ID 0.
Congure user–dened 802.1p CoS trust map
1 Create a dot1p trust map.
OS10(config)# trust dot1p-map dot1p-trust-map
OS10(config-tmap-dot1p-map)#
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Quality of service