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Viewing and configuring DSCP and QoS level mapping

You can view and configure the mapping between the DSCP and QoS levels. For all routed IP packets, the port maps the DSCP to the QoS level according to the Ingress DscpToQos table. Note that changes to the mapping table do not take effect until you reboot the switch.


Note Note: Nortel Networks recommends not changing the default values. If you change the values, make sure that the values are consistent on all other Passport switches and other devices in your network. Inconsistent mapping of table values can result in unpredictable service levels.

To view and configure DSCP and QoS level ingress table mapping:


From the Device Manager menu bar, choose QOS > QOS > Ingress DscpToQos.


The QOS dialog box opens with the Ingress DscpToQos tab displayed.

The table below describes the Ingress DscpToQos tab fields.


Field Description
InDscp
Value of the DiffServ Code Point (in decimal format) in the IP header of the incoming packet.
InDscpBinaryFormat
Value of the DiffServ Code Point in binary format in the IP header of the incoming packet.
QosLevel
Equivalent Quality of Service level.

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