Configuration Guide
438
Configuring QoS
DiffServ Configuration
Follow these steps to configure the DSCP priority:
1) Enable DSCP Priority and click
Apply
. DSCP Priority is disabled by default.
2) Configure the DSCP-TC mapping relations.
DSCP
Select the desired DSCP priority.
DSCP priority represents the DSCP field in the IP packet header. It comprises 6
bits and the valid values are from 0 to 63.
Note:
The DSCP priority displayed on this page may indicate the DSCP value included in
the packets or the redefined DSCP value by the ACL Remark feature.
Priority
Select a CoS that the DSCP priority will be mapped to.
The packets are firstly mapped to CoS, then to TC queues according to the CoS-
id-TC mapping relations.
3) Click
Apply
.
Configuring Port Priority
Note:
In port priority mode, the packets are firstly mapped to CoS, then to TC queues according to the
CoS-id-TC mapping relations. Go to
QoS > DiffServ > 802.1P Priority
and check the CoS-id-TC
mapping relations before configuring port priority.
For T1600G-18TS, the packets are directly mapped to TC queues in port priority mode.