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ARP loop

Jacek Tymoczko
Level 1
Level 1

‎02-14-2014 01:13 AM - edited ‎03-07-2019 06:12 PM

Hi,

I have a problem in network, it turns out that some kind of ARP loop happends. Below there is a draft how does it look on network.

In wireshark I was able to see a flood of ARP request's and responses which causing some machines loose network connections.

Environment is based on VRF.

ScreenShot145.png

The Wireshark was listening on interface on server connected to Cat 3560.

ScreenShot144.png

Any ideas why the request comes sometimes with MAC of server connected to Nexus, and sometimes with MAC of Port-Channel ??

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Steve Fuller
Level 9
Level 9

‎02-14-2014 02:28 AM

Hi,

This looks remarkably similar to the issue you've posted as Bond interfaces on one VLAN causing ARP loop and loadbalancer problems. If it is the same can you please indicate as such or remove one otherwise we will have duplication of effort.

Regards

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