Outbound Port Queues And Packet Priority Settings - HP Switch 2800 Series Management And Configuration Manual

Port Status and Basic Configuration
Configuring Port-Based Priority for Incoming Packets on the 4100gl and 6108 Switches
10-30
member of the VLAN, the packet carries its priority setting to the next,
downstream device. If the outbound port is not configured as a tagged member
of the VLAN, then the tag is stripped from the packet, which then exits from
the switch without a priority setting.

Outbound Port Queues and Packet Priority Settings

Ports on the HP ProCurve switches have the following outbound port queue
structure:
Switch Model
Switch 6108
Series 5300xl Switch
Series 4100gl Switch
Series 3400cl Switch
Series 2600, 2600-PWR Switch
Series 2800 Switch
Series 2500 Switch
Switches 1600M/2400M/2424M/4000M/8000M
As shown below, these port queues map to the eight priority settings specified
in the 802.1p standard.
Table 10-3. Mapping Priority Settings to Device Queues
802.1p Priority Settings Used
In Tagged VLAN Packets
1 (low)
2 (low)
0 (normal priority)
3
4
5
6
7 (high priority)
Outbound
Port Queues
4
4
3
4
4
2
2
Switches with Queue Assignment in Downstream Devices
3 Outbound With:
Port Queues
4 Queues
Low Low
Low Low
Normal Normal
Normal Normal
High Medium
High Medium
High High
High High
8 Queues 2 Queues
Low Low
High
High