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Monitoring CoS Forwarding Classes

Purpose

Use the monitoring functionality to view the current assignment of CoS forwarding classes to queue numbers on the system.

Action

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

user@switch> 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. By default, the following unicast forwarding classes are assigned to queues 0, 3, 4, and 7, respectively: best-effort—Provides no special CoS handling of packets. Loss priority is typically not carried in a CoS value. fcoe—Provides guaranteed delivery for Fibre Channel over Ethernet (FCoE) traffic. no-loss—Provides guaranteed delivery for TCP lossless traffic network-control—Packets can be delayed but not dropped. By default, the following multidestination forwarding class is assigned to queue 8: mcast—Provides no special CoS handling of packets.
Queue	Queue number corresponding to the forwarding class name. By default, four queues (0, 3, 4, and 7) are assigned to unicast forwarding classes and one queue (8) is assigned to a multidestination forwarding class.

Field

Values

Forwarding Class

Names of forwarding classes assigned to queue numbers. By default, the following unicast forwarding classes are assigned to queues 0, 3, 4, and 7, respectively:

best-effort—Provides no special CoS handling of packets. Loss priority is typically not carried in a CoS value.
fcoe—Provides guaranteed delivery for Fibre Channel over Ethernet (FCoE) traffic.
no-loss—Provides guaranteed delivery for TCP lossless traffic
network-control—Packets can be delayed but not dropped.

By default, the following multidestination forwarding class is assigned to queue 8:

mcast—Provides no special CoS handling of packets.

Queue

Queue number corresponding to the forwarding class name.

By default, four queues (0, 3, 4, and 7) are assigned to unicast forwarding classes and one queue (8) is assigned to a multidestination forwarding class.