Could someone give me a few pointers on how to enable ECN on a Nexus 3232c by chance? I would GREATLY appreciate the help.
Here's the config I've applied so far per online documentation:
class-map type queuing match-any c-out-q3
match qos-group 3
class-map type queuing match-any c-out-q2
match qos-group 2
class-map type queuing match-any c-out-q1
match qos-group 1
class-map type queuing match-any c-out-q-default
match qos-group 0
policy-map type queuing default-out-policy_mod
class type queuing c-out-q3
priority level 1
random-detect threshold burst-optimized ecn
class type queuing c-out-q2
bandwidth remaining percent 0
class type queuing c-out-q1
bandwidth remaining percent 0
class type queuing c-out-q-default
bandwidth remaining percent 100
service-policy type queuing output default-out-policy_mod
Yet in our test are dismally slow and the counters on the below command never show ECN packets:
as07.bsdc(config-monitor)# show policy-map interface ethernet 1/30 detail
Global statistics status : enabled
Ethernet1/30
Service-policy (qos) input: qos_policy_TEST
SNMP Policy Index: 285213328
Class-map (qos): qos_class_TEST (match-all)
Slot 1
21283892 packets
Aggregate forwarded :
21283892 packets
Match: dscp 26
set qos-group 3
set cos 3
Service-policy (queuing) output: default-out-policy_mod
SNMP Policy Index: 301990970
Class-map (queuing): c-out-q3 (match-any)
priority level 1
random-detect threshold burst-optimized ecn
queue dropped pkts : 0
queue depth in bytes : 0
Ingress queue discard packets : 0
Ingress queue depth in bytes : 0
ECN marked packets: 0
We've configured the hosts that connect to the switches to send packets that are marked ECN capable, and, through mirroring and tcpdump, have confirmed that the packets do in fact reflect the ECN marking of 10, but it doesn't seem like the 3232c is running ECN correctly.
Thanks in advance!!
