3Com 10014298 Other interface units support only SP algorithm, SW7750display queue-scheduler

172CHAPTER 7: QOS/ OPERATION

[SW7750-qosb-GigabitEthernet7/0/1]traffic-redirect inbound ip-group

1 rule 0 interface gigabitetherent7/0/8

Queue Scheduling

Modify the correspondence between 802.1p priority levels and local priority levels to change the mapping between 802.1p priority levels and queues. That is, put packets into outbound queues according to the new mapping. Use WRR algorithm, and the weight for different queues is respectively 5, 5, 10, 10, 15, 15, 9 and 9. The mapping between the modified 802.1p priority levels and the local priority levels is listed in the following figure (See Queue Scheduling for the default mapping).

Table 185 Modifying Mapping Between 802.1p and Local Priority Levels

802.1p Priority Level	Local Priority Level
0	7
1	6
2	5
3	4
4	3
5	2
6	1
7	0

The 20-Port 10/100/1000BASE-T and 20-Port 1000BASE-X-SFP I/O modules support SP, WRR and RR algorithm.

Other interface units support only SP algorithm.

Figure 44 Queue Scheduling

GE7/0/8

GE7/0/1	GE7/0/2
VLAN2,	VLAN3,
1.0.0.1/8	2.0.0.1/8

To create this configuration:

1Respecify mapping between 802.1p priority levels and local priority levels.

[SW7750]qos cos-local-precedence-map 7 6 5 4 3 2 1 0

2Define WRR algorithm for the switch and specify the weight of outbound queues as 5, 5, 10, 10, 15, 15, 9 and 9.

[SW7750]queue-scheduler wrr 5 5 10 10 15 15 9 9

3View the configuration with the display command.

[SW7750]display queue-scheduler