Port Status and Basic Configuration

Configuring Port-Based Priority for Incoming Packets on the 4100gl and 6108 Switches

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

Outbound

 

Port Queues

 

 

Switch 6108

4

Series 5300xl Switch

4

Series 4100gl Switch

3

Series 3400cl Switch

 

Series 2600, 2600-PWR Switch

4

Series 2800 Switch

4

Series 2500 Switch

2

Switches 1600M/2400M/2424M/4000M/8000M

2

 

 

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

Switches with

Queue Assignment in Downstream Devices

 

In Tagged VLAN Packets

3 Outbound

With:

 

 

 

 

 

Port Queues

4 Queues

8 Queues

2 Queues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

(low)

Low

Low

Low

Low

 

2

(low)

Low

Low

 

 

 

0

(normal priority)

 

 

 

 

 

Normal

Normal

 

 

 

3

 

Normal

Normal

 

 

 

4

 

 

 

 

 

 

 

High

Medium

 

High

 

5

 

High

Medium

 

 

 

6

 

High

 

 

 

 

 

High

 

 

 

7

(high priority)

High

High

High

 

 

 

 

 

 

 

 

 

10-30