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Level 7

Cisco Nexus 7706 configure NTA not working

Hi team,

I have one problem with netflow traffic that not established connect udp port 2055 to my nexus 7706 CoreSwitch

Here is command on CoreSwitch

=======================
flow exporter TT-NETFlow-Exporter
description TURBOTECH NETFlow Exporter
destination x.x.x.153
transport udp 2055
source Vlan2
version 9
template data timeout 60


flow record TT-NETflow-Record
description Netflow Record
match ipv4 source address
match ipv4 destination address
match transport destination-port
collect counter bytes
collect counter packets
sampler TT-Netflow-Sampler
mode 1 out-of 50


flow monitor TT-NETFlow-Monitor
description Apply Inbound Interface Vlan2
record TT-NETflow-Record
exporter TT-NETFlow-Exporter


flow monitor TT-NETFLOW-Monitor-Orignal
description Use Predefined Original-Netflow-Record
record netflow-originalexporter TT-NETFlow-Exporter

interface Vlan2
description /* MGT-VLAN */
no shutdown
no mpls ldp igp autoconfig
ip flow monitor TT-NETFlow-Monitor input sampler TT-Netflow-Sampler
ip flow monitor TT-NETFlow-Monitor output sampler TT-Netflow-Sampler
no ip redirects
ip address x.x.x.1/16

====================

When i run command to show udp connection status and it don't have connection from netflow server ( Solarwind )

Nexus# show sockets connection udp

Total number of udp sockets: 12
Active connections (including servers)
Protocol State/ Recv-Q/ Local Address(port)/
Context Send-Q Remote Address(port)
[host]: udp6 0 *(123)
Wildcard 0 *(*)

[host]: udp 0 *(123)
Wildcard 0 *(*)

[host]: udp6 0 *(161)
Wildcard 0 *(*)

[host]: udp 0 *(161)
Wildcard 0 *(*)

[host]: udp 0 *(646)
default 0 *(*)

[host]: udp 0 *(3503)
default 0 *(*)

[host]: udp 0 *(16813)
Wildcard 0 *(*)

[host]: udp 0 127.0.0.1(130)
Wildcard 0 *(*)

[host]: udp 0 x.x.x.1(38170)
default 0 *(*)

 

But i have other ASR920 and it working 

DEV-RT1#show udp
Proto Remote Port Local Port In Out Stat TTY OutputIF
17 x.x.x.153 2055 x.x.18.10 51107 0 0 2000000 0
17 x.x.x.153 65345 x.x.18.10 161 0 0 2001001 0


Pls help to give me any solution to check or allow port 2055 on my Nexus Switch?

 

Best Regards,
kimseng

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1 Reply
Level 7

Try adding to your flow record...

flow record TT-NETflow-Record

match transport source-port

 

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