Monitoring CoS Classifiers

date_range 13-Jan-21

Purpose

Display the mapping of incoming CoS values to forwarding class and loss priority for each classifier.

To monitor CoS classifiers in the CLI, enter the CLI command:

user@switch> show class-of-service classifier

To monitor a particular classifier in the CLI, enter the CLI command:

user@switch> show class-of-service classifier name classifier-name

To monitor a particular type of classifier in the CLI, enter the CLI command:

user@switch> show class-of-service classifier type classifier-type

Table 1 summarizes key output fields for CoS classifiers.

Table 1: Summary of Key CoS Classifier Output Fields
Field	Values
Classifier	Name of a classifier.
Code point type	Type of classifier: `dscp`—All classifiers of the DSCP type. `ieee-802.1`—All classifiers of the IEEE 802.1 type. `ieee-mcast`—All classifiers of the IEEE 802.1 multicast type. Note: QFX10000 switches do not use different classifiers for unicast and multidestination (multicast, broadcast, destination lookup fail) traffic, so multicast-specific classifiers are not supported. `exp`—All classifiers of the MPLS exp type. Note: OCX Series switches do not support MPLS.
Index	Internal index of the classifier.
Code point	DSCP or IEEE 802.1 code point value of the incoming packets, in bits. These values are used for classification.
Forwarding Class	Name of the forwarding class that the classifier assigns to an incoming packet. This class affects the forwarding and scheduling policies that are applied to the packet as it transits the switch.
Loss Priority	Loss priority value that the classifier assigns to the incoming packet based on its code point value.

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