Mapping Cos Values To Egress Queues; Table 14: Ieee 802.1P Egress Queue Priority Mapping; Table 15: Cos Priority Levels - Edge-Core ECS3510-10PD Management Manual

M C S V
APPING O ALUES
E Q
TO GRESS UEUES
Use the Traffic > Priority > PHB to Queue page to specify the hardware
output queues to use based on the internal per-hop behavior value. (For
more information on exact manner in which the ingress priority tags are
mapped to egress queues for internal processing, see
Priorities to Internal DSCP Values" on page
The switch processes Class of Service (CoS) priority tagged traffic by using
four priority queues for each port, with service schedules based on strict
priority, Weighted Round-Robin (WRR), or a combination of strict and
weighted queuing. Up to eight separate traffic priorities are defined in IEEE
802.1p. Default priority levels are assigned according to recommendations
in the IEEE 802.1p standard as shown in
indicates the default mapping of internal per-hop behavior to the hardware
queues. The actual mapping may differ if the CoS priorities to internal
DSCP values have been modified

Table 14: IEEE 802.1p Egress Queue Priority Mapping

Priority 0 1
Queue 1 0
The priority levels recommended in the IEEE 802.1p standard for various
network applications are shown in
mapped to the switch's output queues in any way that benefits application
traffic for the network.

Table 15: CoS Priority Levels

Priority Level Traffic Type
1 Background
2 (Spare)
0 (default) Best Effort
3 Excellent Effort
4 Controlled Load
5 Video, less than 100 milliseconds latency and jitter
6 Voice, less than 10 milliseconds latency and jitter
7 Network Control
CLI R
EFERENCES
"qos map phb-queue" on page 1181
◆
C U
OMMAND SAGE
Egress packets are placed into the hardware queues according to the
◆
mapping defined by this command.
– 279 –
C
HAPTER
285).
Table 14. The following table
(page 285).
2 3 4 5
0 1 2 2
Table 15. However, priority levels can be
| Class of Service
10
Layer 2 Queue Settings
"Mapping CoS
6 7
3 3