Netflow on a Nexus 5672UP sending incorrect InputInt and OutputInt.

[jay.colby]

Hello All,

I am seeing several Nexus 5672UP send the incorrect input and output interface identity.  I am using SolarWinds as a SNMP and Netflow collector.  I am seeing from and SNMP walk and show command that the correct SNMP identifier match in the SolarWinds data base.  I am getting correct stats from SNMP.  What is the issue is Netflow.  I am seeing from a Wireshark capture the switch is sending a different identifiers as SNMP.  So, SolarWinds see this as an monitored interface.

I do not think this is a bug as it has followed incremental and major code versions.  Same for SolarWinds.

Current enviroment:

SolarWinds:

NPM -12.3

NTA - 4.4

Nexus:

kickstart: version 7.3(3)N1(1)
system: version 7.3(3)N1(1)

[jay.colby · Accepted solution]

This is fixed.  On a hunch I configured neflow to use version 9.  It resolved my issue.

version 7.3(3)N1(1)
feature netflow

flow exporter FLOWEXP-1
destination 10.100.4.40
transport udp 2055
source Vlan3
version 9
flow record IPv4Flow
description Ipv4flow
match transport destination-port
collect counter packets
sampler Sampler
mode 1 out-of 128
flow monitor FLOW-MONITOR-1
record netflow-original
exporter FLOWEXP-1

interface Vlan2
ip flow monitor FLOW-MONITOR-1 input sampler Sampler

[rkhancha]

Should the config for interface vlan be configured for VLAN3 instead of VLAN2?