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Monitoring CoS Drop Profiles




This topic applies only to the J-Web Application package.

J-Web Application package Release 14.1X53-A2 does not support Class of Service (CoS) on EX4600 switches.

Use the monitoring functionality to view data point information for each CoS random early detection (RED) drop profile on the EX8200 switch.


To monitor CoS RED drop profiles in the J-Web interface, select Monitor > Class of Service > RED Drop Profiles.

To monitor CoS RED drop profiles in the CLI, enter the following CLI command:

show class-of-service drop-profile


Table 103 summarizes the key output fields for CoS RED drop profiles.

Table 103: Summary of the Key Output Fields for CoS Red Drop Profiles

FieldValuesAdditional Information

RED Drop Profile Name

Name of the RED drop profile.

A drop profile consists of pairs of values between 0 and 100, one for queue buffer fill level and the other for drop probability, that determine the relationship between a buffer's fullness and the likelihood it will drop packets.

To display profile values, click the plus sign (+).

Graph RED Profile

Links to a graph of a RED curve that the system uses to determine the drop probability based on queue buffer fullness.

The x axis represents the queue buffer fill level, and the y axis represents the drop probability.


Type of a specific drop profile:

  • interpolated—The two coordinates (x and y) of the graph are interpolated to produce a smooth profile.

  • segmented—The two coordinates (x and y) of the graph are represented by line fragments to produce a segmented profile.


Internal index of this drop profile.

Fill Level

Percentage fullness of a buffer queue. This value is the x coordinate of the RED drop profile graph.

Drop Probability

Drop probability of a packet corresponding to a specific queue buffer fill level. This value is the y coordinate of the RED drop profile graph.