NEXUS 5K QOS

anthonykahwati · ‎01-24-2014

Hello

I have deployed a qos policy, not my forte to be honest but have given it a stab based on videos and documents and advice from support partners.

I am happy with the config in that it should at the very least show me more queues on the interfaces, but, it is not.

See here:

NYOCORESW02# show queuing int e1/27
Ethernet1/27 queuing information:
TX Queuing
qos-group sched-type oper-bandwidth
0 WRR 55

RX Queuing
    qos-group 0
    q-size: 470080, HW MTU: 9216 (9216 configured)
    drop-type: drop, xon: 0, xoff: 470080
    Statistics:
        Pkts received over the port             : 43
        Ucast pkts sent to the cross-bar        : 43
        Mcast pkts sent to the cross-bar        : 0
        Ucast pkts received from the cross-bar : 54
        Pkts sent to the port                   : 54
        Pkts discarded on ingress               : 0
        Per-priority-pause status               : Rx (Inactive), Tx (Inactive)

Total Multicast crossbar statistics:
Mcast pkts received from the cross-bar : 0

I know that it is working because it's changed the qos-group 0 queue to 55% bandwidth, but it is not displaying the other queues..... my config is below... does any one have any ideas? Many thanks

class-map type qos match-any CLASS_4

match dscp 16-23 , 32-39

class-map type qos match-any CLASS_3

match dscp 24-32 , 48-63

class-map type qos match-any CLASS_2

match dscp 40-47

!

policy-map type qos QOS_GROUP_POLICY
    class CLASS_4
    set qos-group 4
class CLASS_3
    set qos-group 3
class CLASS_2
    set qos-group 2

class class-fcoe
set qos-group 1

!

class-map type queuing CLASS_4
match qos-group 4
class-map type queuing CLASS_3
match qos-group 3
class-map type queuing CLASS_2
match qos-group 2

class-map type queuing class-fcoe
match qos-group 1

!

policy-map type queuing QUEUE_OUT

class type queuing CLASS_4

bandwidth percent 20

class type queuing CLASS_3

bandwidth percent 10

class type queuing CLASS_2

priority

bandwidth percent 10

class type queuing class-fcoe

bandwidth percent 5

system qos

service-policy type queuing output QUEUE_OUT --> Queuing

service-policy type qos input QOS_GROUP_POLICY --> Marking

class type queuing CLASS_4
    bandwidth percent 20
class type queuing CLASS_3
    bandwidth percent 10
class type queuing CLASS_2
    priority
    bandwidth percent 10
class type queuing class-fcoe
    bandwidth percent 5

!

system qos
service-policy type queuing output QUEUE_OUT
service-policy type qos input QOS_GROUP_POLICY

anthonykahwati · ‎02-01-2014

Further to this, it looks like the lack of network qos configuration was the problem.

Need to understand why adding a Network QoS policy, even though it did nothing but rerference the class maps, is necessary for this to work, but for now... I'm just happy to accept it.