Connectivity Guide

Ingress traffic classification
Ingress traffic can either be data or control traffic.
By default, OS10 does not classify data traffic and assigns the default traffic class ID 0 to all data traffic.
OS10 implicitly classifies all control traffic such as STP, OSPF, ICMP, and so on, and forwards the traffic to control plane
applications.
Data traffic classification
You can classify the data traffic based on ACL or trust.
ACL-based classification consumes significant amount of network processor resources. Trust-based classification classifies
traffic in a pre-defined way without using network processor resources.
Trust based classification
OS10 supports classification based on the 802.1p CoS field (L2) or DSCP field (L3).
802.1p CoS trust map:
Trust the 802.1p CoS field to mark with a traffic-class ID and color for the CoS flow.
Table 59. Default 802.1p CoS trust map
CoS Traffic 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–defined 802.1p CoS trust map
You can override the default mapping by creating a dot1p trust map. All the unspecified dot1p entries map to the default traffic
class ID 0.
Configure user–defined 802.1p CoS trust map
1. Create a dot1p trust map.
OS10(config)# trust dot1p-map dot1p-trust-map
OS10(config-tmap-dot1p-map)#
2. Define the set of dot1p values mapped to traffic-class, the qos-group ID.
OS10(config-tmap-dot1p-map)# qos-group 3 dot1p 0-4
OS10(config-tmap-dot1p-map)# qos-group 5 dot1p 5-7
3. Verify the map entries.
OS10# show qos maps type trust-map-dot1p dot1p-trust-map
DOT1P Priority to Traffic-Class Map : dot1p-trust-map
Traffic-Class DOT1P Priority
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916
Quality of service