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Monitoring CoS Forwarding Classes

Purpose

View the current assignment of CoS forwarding classes to queue numbers on the system.

Action

Select Monitor>Class of Service>Forwarding Classes in the J-Web user interface, or enter the show class-of-service forwarding-class command.

Table 86 summarizes key output fields for CoS forwarding classes.

Table 86: Summary of Key CoS Forwarding Class Output Fields

Field

Values

Additional Information

Forwarding Class

Names of forwarding classes assigned to queue numbers. By default, the following forwarding classes are assigned to queues 0 through 3:

  • best-effort—Provides no special CoS handling of packets. Loss priority is typically not carried in a CoS value, and RED drop profiles are more aggressive.

  • expedited-forwarding—Provides low loss, low delay, low jitter, assured bandwidth, and end-to-end service.

  • assured-forwarding—Provides high assurance for packets within specified service profile. Excess packets are dropped.

  • network-control—Packets can be delayed but not dropped.

Queue

Queue number corresponding to the forwarding class name.

By default, four queues, 0 through 3, are assigned to forwarding classes.

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