VLAN Groups Config does not work anymore with v11.3

Cirrostratus

May 08, 2013

Hi all,

Answering my own question, I was hitting a bug of v11.3...

I could use my "old" v11.2 config and upgrade it to v11.3. Apparently the VLAN Group Feature seems not to work anymore as described above.

Well, after a longer troubleshooting session I have seen very strange behavior with tcpdump traces which lead me to the following bug:

-> ID 366403

"After modifying the BIG-IP system configuration by adding or removing Network Interfaces,

the interface numbering might appear out of order and NICs may appear that are no longer present"

In my config it happened that exactly the two Interfaces for the VLAN Group were vice versa configured!

As a result the VLAN Group or Layer 2 Config was not working anymore as expected!

So the solution was first to check the MAC Addresses of the interfaces and give the right order of the Virtual Machine again in vSphere.

Then the VLAN Group Config was working again!

This problem was a big "time eater" for me but it is solved now.

So when you're using BigIP v11.3 in a Virtual Machine keep in mind that you

CHECK THE ORDER OF YOUR INTERFACES ACCORDING TO THE MAC ADDRESSES !

I hope I can help to prevent this error for other installations out there in the field.

Peter

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