L
AYER
2 Q
UEUE
S
ETTINGS
14-3

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 eight 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 25-2
Console(config-if)#switchport priority default 5 33-17
Console(config-if)#end
Console#show interfaces switchport ethernet 1/3 25-16
Information of Eth 1/3
Broadcast Threshold: Enabled, 500 packets/second
Multicast Threshold: Enabled, 500 packets/second
Unknown Unicast Threshold: Enabled, 500 packets/second
LACP Status: Disabled
Ingress Rate Limit: Disabled, 102400K bits per second
Egress Rate Limit: Disabled, 102400K bits per second
Ingress Rate Limit Trap: Disabled, Up:0 packets,Down:0 packets
VLAN Membership Mode: Hybrid
Ingress Rule: Disabled
Acceptable Frame Type: All frames
Native VLAN: 1
Priority for Untagged Traffic: 0
GVRP Status: Disabled
MDIX Status: Auto
Allowed VLAN: 1(u),
Forbidden VLAN:
Console#

Table 14-1 Mapping CoS Values to Egress Queues

Priority 01234567
Queue 20134567