Introduction To Priority Mapping Tables - HP V1910 User Manual

The device provides the following priority trust modes on a port:
Trust packet priority—The device assigns to the packet the priority parameters corresponding to the

packet's priority from the mapping table.
 Trust port priority—The device assigns a priority to a packet by mapping the priority of the receiving
port.
You can select one priority trust mode as needed.
Priority mapping process
a.

Introduction to priority mapping tables

The device provides various types of priority mapping table, as listed below:
CoS to DSCP: 802.1p-to-DSCP priority mapping table.

 CoS to Queue: 802.1p-to-local priority mapping table.
DSCP to CoS: DSCP-to-802.1p priority mapping table, which is applicable to only IP packets.

DSCP to DSCP: DSCP-to-DSCP priority mapping table, which is applicable to only IP packets.

DSCP to Queue: DSCP-to-local priority mapping table, which is applicable to only IP packets.

1 through 2 list the default priority mapping tables.
The default CoS to DSCP/CoS to Queue mapping table
1.
Input CoS value
0
1
2
3
4
5
6
7
a shows the process of priority mapping on a device.
Local precedence (Queue)
2
0
1
3
4
5
6
7
431
DSCP
0
8
16
24
32
40
48
56