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Monitoring CoS Scheduler Maps

Purpose

Use the monitoring functionality to display assignments of CoS forwarding classes to schedulers.

Action

To monitor CoS scheduler maps in the CLI, enter the CLI command:

user@switch> show class-of-service scheduler-map

To monitor a specific scheduler map in the CLI, enter the CLI command:

user@switch> show class-of-service scheduler-map scheduler-map-name

Meaning

Table 1 summarizes key output fields for CoS scheduler maps.

Table 1: Summary of Key CoS Scheduler Maps Output Fields

Field

Values

Scheduler map

Name of a scheduler map that maps forwarding classes to schedulers.

Index

Index of a specific object—scheduler maps, schedulers, or drop profiles.

Scheduler

Name of a scheduler that controls queue properties such as bandwidth and scheduling priority.

Forwarding class

Name(s) of the forwarding class(es) to which the scheduler is mapped.

Transmit rate

Guaranteed minimum bandwidth configured on the queue mapped to the scheduler. On strict-high priority queues on QFX10000 switches, defines the maximum amount of traffic on the queue that is treated as strict-high priority traffic.

Priority

Scheduling priority of traffic on a queue:

  • strict-high or high—Packets on a strict-high priority queue are transmitted first, before all other traffic, up to the configured maximum bandwidth (shaping rate). On QFX3500, QFX3600, EX4600, and OCX series switches, and on QFabric system, only one queue can be configured as strict-high or high priority. On QFX10000 switches, you can configure more than one strict-high priority queue.

  • low—Packets in this queue are transmitted after packets in the strict-high queue.

Drop Profiles

Name and index of a drop profile that is mapped to a specific loss priority and protocol pair. The drop profile determines the way best effort queues drop packets during periods of congestion.

Loss Priority

Packet loss priority mapped to the drop profile. You can configure different drop profiles for low, medium-high, and high loss priority traffic.

Protocol

Transport protocol of the drop profile for the particular priority.

Name

Name of the drop profile.