SMC Networks TigerSwitch 1000, Management Manual

Page: 203 / 480

C
LASS OF
S
ERVICE
C
ONFIGURATION
3-155
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.
The priority levels recommended in the IEEE 802.1p standard for various
network applications are shown in the following table. However, you can
map the priority levels to the switch’s output queues in any way that
benefits application traffic for your own network.
Console(config)#interface ethernet 1/3 4-132
Console(config-if)#switchport priority default 5 4-209
Console(config-if)#end
Console#show interfaces switchport ethernet 1/3
4-143
Information of Eth 1/3
Broadcast threshold: Enabled, 500 packets/second
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: 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 0 1 2 3 4 5 6 7
Priority 2 0 1 3 4 5 6 7