SMC Networks SMC8150L2 manual Mapping CoS Values to Egress Queues, Port Priority Configuration

Class of Service Configuration 3

Web – Click Priority, Default Port Priority or Default Trunk Priority. Modify the default priority for any interface, then click Apply.

	Figure 3-84	Port Priority Configuration
CLI – This example assigns a default priority of 5 to port 3.
Console(config)#interface ethernet 1/3			4-116
Console(config-if)#switchport priority default 5			4-185
Console(config-if)#end
Console#show interfaces switchport ethernet 1/3			4-125
Information of Eth 1/3		Enabled, 500 packets/second
Broadcast threshold:
LACP status:		Disabled
Ingress rate	limit: enable, K bits per second: 25
VLAN membership mode:		Hybrid
Ingress rule:		Enabled
Acceptable frame type:		All frames
Native VLAN:	untagged traffic:	1
Priority for		5
GVRP status:		Disabled
Allowed VLAN:		1(u),
Forbidden VLAN:		NONE
Private-VLAN	mode:
Private-VLAN	host-association:	NONE
Private-VLAN	mapping:	NONE
Console#

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.

Table 3-11 Mapping CoS Values to Egress Queues

Queue	0	1	2	3
Priority	1,2	0,3	4,5	6,7

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