You can configure priority mappings on switches.
Context
When packets are sent to the inbound or outbound interface of a device, the device determines the queues and priorities of packets according to DSCP or the IP precedence field. The S3300 switches support priority mappings for incoming packets.
Procedure
- Configure priority mapping.
- Click Configure to open the Priority Mapping page
Table 1 describes the parameters on the page.
Table 1 Priority Mapping Parameter
Description
Select Mapping Type
Indicates the priority mapping type.
Start Input DSCP Value
Specifies the start DSCP value of the incoming packets. The value ranges from 0 to 63. This parameter is mandatory.
Specifies the start IP precedence value of the incoming packets. The value ranges from 0 to 7.
End Input DSCP Value
Specifies the end DSCP value of the incoming packets. The value ranges from 0 to 63.
Specifies the end IP precedence value of the incoming packets. The value ranges from 0 to 7.
Output 802.1P Priority
Specifies the 802.1p priority of the outgoing packets. The value is an integer that ranges from 0 to 7. This parameter is mandatory.
Specifies the discard priority of the outgoing packets. The value is an integer that ranges from 0 to 2.
Specifies the DSCP priority of the outgoing packets. The value is an integer that ranges from 0 to 63.
NOTE: Configure the priority mappings as follows:- To map the DSCP field to the 802.1p field, set the start DSCP value, end DSCP value, and specified 802.1p field of outgoing packets.
- To map the DSCP field to the discard priority, set the start DSCP value, end DSCP value, and discard priority.
- To map the DSCP field to the DSCP field, set the start DSCP value, end DSCP value, and DSCP value of outgoing packets.
- To map the IP precedence field to the 802.1p field, set the start IP precedence value, end IP precedence value, and specified 802.1p field of outgoing packets.
- To map the IP precedence field to the IP precedence field, set the start IP precedence value, end IP precedence value, and specified IP precedence value of outgoing packets.
The following is an example for mapping the DSCP field to the 802.1p field.
- Click Configure to open the Priority Mapping page