Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 
 

Monitoring CoS Forwarding Classes

Purpose

Note:

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

View the current assignment of CoS forwarding classes to queues on the switch.

Action

To monitor CoS forwarding classes in the J-Web interface, select Monitor > Class of Service > Forwarding Classes.

To monitor CoS forwarding classes in the CLI, enter the following CLI command:

show class-of-service forwarding-class

Meaning

Table 1 summarizes key output fields for CoS forwarding classes.

Table 1: Summary of Key CoS Forwarding Class Output Fields

Field

Values

Forwarding Class

Names of forwarding classes assigned to queue numbers. The following are the default forwarding classes:

  • best-effort—Provides no special CoS handling of packets. Loss priority is typically not carried in a CoS value.

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

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

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

EX8200 switches have the following additional default forwarding classes:

  • mcast-be—Provides no special CoS handling of packets.

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

  • mcast-af—Provides high assurance for packets within the specified service profile. Excess packets are dropped.

  • mcast-nc—Provides multicast network-control traffic.

Queue

Queue number corresponding to the forwarding class name. The default forwarding classes are assigned as follows:

  • best-effort—0

  • expedited-forwarding—5

  • assured-forwarding—1

  • network-control—7

  • mcast-be—2

  • mcast-ef—4

  • mcast-af—6

Fabric Priority

(EX8200 switches only) Fabric priority for the forwarding class, either high or low. The fabric priority determines the priority of packets entering the switch fabric.