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ONFIGURATION
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CLI – This example assigns a default priority of 5 to port 3.
Mapping CoS Values to Egress Queues
This switch processes Class of Service (CoS) priority tagged traffic by
using four priority queues for each port, with service schedules based on
strict or Weighted Round Robin (WRR). Up to eight separate traffic
priorities are defined in IEEE 802.1p. The default priority levels are
assigned according to recommendations in the IEEE 802.1p standard as
shown in the following table.
Console(config)#interface ethernet 1/3 4-145
Console(config-if)#switchport priority default 5 4-224
Console(config-if)#end
Console#show interfaces switchport ethernet 1/3 4-156
Information of Eth 1/3
Broadcast threshold: Disabled
LACP status: Disabled
Ingress rate limit: disable, Level: 30
Egress rate limit: disable, Level: 30
VLAN membership mode: Hybrid
Ingress rule: Enabled
Acceptable frame type: Tagged frames only
Native VLAN: 1
Priority for untagged traffic: 5
GVRP status: Disabled
Allowed VLAN: 1(u),
Forbidden VLAN:
Private-VLAN mode: NONE
Private-VLAN host-association: NONE
Private-VLAN mapping: NONE
Console#
Table 3-10 Egress Queue Priority Mapping
Queue
0123
Priority
1,2 0,3 4,5 6,7
Q
0
Serviced
by weighted
round robin
Q
1
Q
2
Q
3
1,2
0,3
4,5
6,7