This is the QoS configuration that is applied to some of the server interfaces on an access layer 6509 running 12(2)SXF18.
description Bowers VMWARE 1
switchport access vlan 752
switchport mode access
no ip address
wrr-queue cos-map 1 1 1
wrr-queue cos-map 2 1 0
wrr-queue cos-map 2 2 3
wrr-queue cos-map 3 1 4
wrr-queue cos-map 3 2 2
wrr-queue cos-map 3 4 6
wrr-queue cos-map 3 5 7
A server is plugged into this port.
The scheduling capabilities of this interface are the following:
QOS scheduling: rx-(1q8t), tx-(1p3q8t)
I'm a bit confused. There is 1 priority transmit and 3 regular transmit queues, and only one regular input queue, therefore, one can assume that what has been configured on this interface is output queuing/scheduling. Is that correct?
Isnt it peculiar to configure output scheduling on an interface that connects to a server/end-user?
Shouldnt output queuing/scheduling be configured on the uplinks to the distribution layer?
Lastly, how does one differentiate between the input queues and the output quesues when configuring scheduling? For example, given the line wrr-queue cos-map 1 1 1, how does one know whether queue 1 in that this command is referencing queue1 of the outo\put queue or the sole input queue?