Specifications

Switching set switch qos 8-179
Software Release 2.7.3
C613-03098-00 REV A
set switch qos
Syntax SET SWItch QOS=P0,P1,P2,P3,P4,P5,P6,P7
where P0-P7 are each numbers from 0-n where n+1 is the number of Quality of
Service egress queues supported
Description This command maps user priority levels to Quality of Service egress queues.
On the Rapier i Series switches only, this command also updates the Quality of
Service module Hardware Priority settings (see the set qos hwpriority
command on page 35-32 and the show qos hwpriority command on
page 35-39 in Chapter 35, Quality of Service (QoS) on Switch Ports.
The qos parameter specifies a comma-separated list of eight values, all of
which must be present. The first value, P0, represents the QOS queue for
priority level 0. The last value, P7, represents the QOS queue for priority level
7. Similarly, values P1 to P6 represent the QOS queue for the corresponding
priority level.
The switch has four QOS egress queues. Its default QOS values are
1,0,0,1,2,2,3,3 as shown in Table 8-35 on page 8-179.
Packets that originate on the switch or are routed by the switch’s software have
been assigned a Quality of Service priority of 7. To ensure that these packets are
transmitted promptly, you should not assign priority 7 to a low-numbered
egress queue.
Example To set the mapping shown in Table 8-36 on page 8-179, use the command:
set switch qos=0,0,0,1,1,2,2,3
Table 8-35: Default priority level to queue mapping for four QOS egress
queues
Priority level Queue
01
10
20
31
42
52
63
73
Table 8-36: Example priority level to QOS egress queue mapping
Priority level Queue
00
10
20
31