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N7K, F248XP-25E, v6.2.14 - Netflow (- BFD) problem

Hello Community.

I have a Nexus 7009 with SUP2 and F248XP-25E running on NX-OS 6.2.14.

I tried to configure Netflow and activate it on a SVI; see config bellow.

When activating this on a Interface VLAN3192 I receive the following message:

N7K-2(config-if)# ip flow monitor NetFlow-Monitor input sampler 4956-packets
Recommended sampler is 1 out-of 4956 to avoid rate limiting.
An additional 1:100 sampler, over the configured sampler is applicable for F2/F2e ports
Verify failed - Client 0x84000146, Reason: Tcam Allocation Failure,  : Netflow Sampler (SVI), BFD, Interface: Vlan3192
N7K-2(config-if)#

I found a comparable Topic with DHCP Relay and Netflow

https://supportforums.cisco.com/discussion/11799601/nexus-7k-f248xp-25-dhcp-relay-and-netflow-Problem

Has please anyone an idea whats going wrong in my Setup?

Is BFD and Netflow on the same SVI not supported.

I have not found some hints in the Manual or release notes on this combination.

Any idea is highly appreciated.

Thank you

Karlheinz

flow timeout active 60
flow exporter NetFlow-to-Orion
  destination 10..x.x.x
  transport udp 2055
  source Vlan1800
  version 9
    template data timeout 60
flow record OrionNetFlow
  match ipv4 source address
  match ipv4 destination address
  match ip protocol
  match ip tos
  match transport source-port
  match transport destination-port
  collect counter bytes
  collect counter packets
sampler 4956-packets
  mode 1 out-of 4956
flow monitor NetFlow-Monitor
  description NetFlow-to-Solarwinds
  record OrionNetFlow
  exporter NetFlow-to-Orion

1 Reply 1

Rajeshkumar Gatti
Cisco Employee
Cisco Employee

Hi,

By default both bfd and s-netflow are not supported on the same svi. There is a knob available in the code you are running that allows these features to now coexist. You will have to configure the following command in the default vdc -

hardware access-list resource feature bank-mapping

I would recommend you to go through the document below as well

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/6_x/nx-os/security/configuration/guide/b_Cisco_Nexus_7000_NX-OS_Security_Configuration_Guide__Release_6-x/b_Cisco_Nexus_7000_NX-OS_Security_Configuration_Guide__Release_6-x_chapter_01110.html#concept_C64B6A15DAD848B18597CCF54B2EA020

Hope this helps resolve your issue.

-Raj

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