Cisco SR224T-NA Administration Guide - Page 276
Mapping CoS/802.1p to a Queue, Default Mapping Queues
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Configuring Quality of Service Configuring QoS - General 20 STEP 3 Click Apply. The queues are configured, and the Running Configuration file is updated. Mapping CoS/802.1p to a Queue The CoS/802.1p to Queue page maps 802.1p priorities to egress queues. The CoS/802.1p to Queue Table determines the egress queues of the incoming packets based on the 802.1p priority in their VLAN Tags. For incoming untagged packets, the 802.1p priority is the default CoS/802.1p priority assigned to the ingress ports. Default Mapping Queues 802.1p Values (0-7, 7 being the highest) 0 1 2 3 Queue (4 queues 14, 4 being the highest priority) Queue (2 queues: Normal and High) 1 Normal 1 Normal 2 Normal 3 Normal 4 3 Normal 5 4 High 6 4 High 7 4 High Notes Background Best Effort Excellent Effort Critical Application LVS phone SIP Video Voice Cisco IP phone default Interwork Control LVS phone RTP Network Control By changing the CoS/802.1p to Queue mapping and the Queue schedule method and bandwidth allocation, it is possible to achieve the desired quality of services in a network. CoS/802.1p to Queue mapping is applicable only if CoS/802.1p is the trusted mode and the packets belong to flows that are CoS trusted. Cisco Small Business 200 Series Smart Switch Administration Guide 277