HP V1910 manual Introduction to priority mapping tables, Priority mapping process, 431

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. a shows the process of priority mapping on a device.

a.Priority mapping process

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.

1.The default CoS to DSCP/CoS to Queue mapping table

Input CoS value	Local precedence (Queue)	DSCP
0	2	0
1	0	8
2	1	16
3	3	24
4	4	32
5	5	40
6	6	48
7	7	56

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