Two 5400R zl2 VSF and Distributed Trunking

[Xerox]

Hi all,
I have a question regarding VSF and distributed trunking.
At the moment I wasn´t able to find the requested information for my problem.

We have four 5406R switches.
Two in data center 1 and the other two in data center 2.

The Access switches are now connected to each data center with one link in active-passive mode.
(the second link is blocked by spanning-tree)

Now we are thinking about creating a VSF pair for each data center.
The pivotal question is, if it is possbile and supported to create a Distributed trunking pair out of the two VSF clusters.

That would allow us to connect the Access switch with a single LACP trunk with one link at data center 1 and the second at data center 2.

regards
Daniel

[parnassus · Accepted solution]

Hello @Xerox, as already answered on the Aruba Airheads Community Forum (here), the answer is No, DT Distributed Trunking is mutually exclusive with VSF (or Vice-Versa). You can't create an ISC Link between two separate VSF stacks to make them to behave like two physical single Switches configured for/with DT-ISC.

[Xerox]

Hi parnassus,

thanks for your answer.