Introduction To Priority Mapping Tables - HP 1920 Series User Manual

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The device provides the following priority trust modes on a port:
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You can select one priority trust mode as needed.
a device.
Figure 462 Priority mapping process

Introduction to priority mapping tables

The device provides the following types of priority mapping tables:
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Table 148
Table 148 Default CoS to Queue mapping table
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For more information about 802.1p priority and DSCP values, see
Local precedence is a locally significant precedence that the device assigns to a packet. A local
precedence value corresponds to an output queue. Packets with the highest local precedence are
processed preferentially.
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.
CoS to Queue—802.1p--to-local mapping table.
DSCP to Queue—DSCP-to-local mapping table, which applies to only IP packets.
through Table 149
Input CoS value
0
1
2
3
4
5
6
7
manuals search engine
Figure 462
list the default priority mapping tables.
Local precedence (Queue)
2
0
1
3
4
5
6
7
475
"Packet precedences."
shows the process of priority mapping on