Configuring Afd On Egress Queues - Cisco Nexus 9000 Series Configuration Manual

Configuring AFD on Egress Queues

Command or Action
Example:
switch(config-pmap-c-que)# congestion-control
random-detect forward-nonecn
Configuring AFD on Egress Queues
AFD can be configured for an egress queuing policy.
Note Approximate Fair Drop is not supported on the Cisco Nexus 9508 switch (NX-OS 7.0(3)F3(3)).
Note
AFD and WRED cannot be applied at the same time. Only one can be used in a system.
Note
The following are recommended values for queue-desired for different port speeds:
Port Speed
10G
40G
100G
Values for queue are user configurable.
Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x
116
Configuring Queuing and Scheduling
Purpose
used with a WRED+ECN configuration and when the
intention is to avoid WRED drops of non-ECN-capable
traffic. This option is available beginning with Cisco NX-OS
Release 7.0(3)I4(2) and supported only for Cisco Nexus
9200 platform switches, Cisco Nexus 93108TC-EX and
93180YC-EX switches, and Cisco Nexus 9508 switches
with the Cisco Nexus 9732C-EX line card.
Beginning with Cisco NX-OS Release 7.0(3)I4(5), this
feature is supported on Cisco Nexus 9508 switches with
the Cisco Nexus 9636PQ line cards and Cisco Nexus 3164Q
switches.
Value for Queue
150 kbytes
600 kbytes
1500 kbytes