Entry Description:
CoS-id:
CoS-id is a value for the switch to establish mapping relations
between the priorities and TC queues. The valid values are from
0 to 7 and correspond to the 802.1P priority levels.
Queue TC-id:
Select a TC queue that you want the CoS-id to be mapped to.
The switch supports 7 TC queues, from TC0 for the lowest
priority to TC 6 for the highest priority.
Note:
To complete QoS function configuration, you have to go to the
Schedule Mode
page to select
a schedule mode after the configuration is finished on this page.
Configuration Procedure:
Step Operation
Description
1
Enable the 802.1P Priority
Required. On
QoS→
Class of Service
→Trust Mode
page, select trust 802.1p mode.
2
Configure the mapping
relation between the 802.1P
priority CoS and the TC
Required. On
QoS→
Class of Service
→
802.1P/CoS
to Queue Mapping
page, configure the mapping
relation between the 802.1P priority CoS and the TC.
3
Select a schedule mode
Required. On
QoS→
Class of Service
→Schedule
Mode
page, select a schedule mode.
12.1.4
DSCP to Queue Mapping
On this page you can configure DSCP priority. DSCP (DiffServ Code Point) is a new definition to
IP ToS field given by IEEE. This field is used to divide IP datagram into 64 priorities. When trust
ip-dscp mode is selected, IP datagram are mapped to different priority levels based on DSCP
priority mode; non-IP datagram with 802.1Q tag are mapped to different priority levels based on
802.1P priority mode if trust 802.1p mode is selected; the untagged non-IP datagram are
mapped based on port priority mode.
302
