ProLiant BL p-Class GbE2 Interconnect Switch Application Guide

Quality of Service 84
Ingress packets receive a priority value, as follows:
• Tagged packets—GbE2 reads the 802.1p priority in the VLAN tag.
• Untagged packets—GbE2 tags the packet and assigns an 802.1p priority, based on the port’s default
priority (/cfg/port x/8021ppri).
Egress packets are placed in a COS queue based on the priority value, and scheduled for transmission based on
the scheduling weight of the COS queue.
Use the /cfg/qos/8021p/cur command to display the mapping between 802.1p values, Class of Service
queues (COSq), and COSq scheduling weights.
>> 802.1p# cur
Current priority to COS queue configuration:
Number of COSq: 8
Priority COSq Weight
-------- ---- ------
0 0 1
1 1 2
2 2 3
3 3 4
4 4 5
5 5 7
6 6 15
7 7 0
802.1p configuration (CLI example)
1. Configure a port’s default 802.1 priority.
>> Main# cfg/port 19 (Select port)
>> Port 19# 8021ppri (Set port’s default 802.1p priority)
Current 802.1p priority: 0
Enter new 802.1p priority [0-7]: 1
>> Port 19# ena
>> Port 19# apply
2. Map the 802.1p priority value to a COS queue and set the COS queue scheduling weight.
>> Main# cfg/qos/8021p (Select 802.1p menu)
>> 802.1p# priq (Set COS queue assignments)
Enter priority [0-7]: 1
Current COS queue (for priority 1): 1
Enter new COS queue (for priority 1) [0-7]: 2
>> 802.1p# qweight (Set COS queue weights)
Enter COS queue [0-7]: 2
Current weight (for COS queue 2): 3
Enter new weight (for COS queue 2) [0-15]: 10
>> 802.1p# apply