Virtual Token Ring Interfaces

[huw.morgan]

One of my 6500 MSFCs has a number of these virtual interfaces configured - though there are no associated interface configuration commands.

I can't find any explanation about what these are for on CCO. I strongly suspect that I can delete them, but I have to be sure.

Can anyone help?

[mbinzer]

Hi,

virtual tokenring interfaces are typically used in an environment where snasw is used.

Historically this was/is the entry point when you have physical tokenring interfaces and you srb into the virtual tokenring and then you define the virtual tokenring interface as a snasw port. Can also be used with srtlb and physical ethernet.

The downstream appn/sna devices would then connect to the mac address defined on the virtual tokenring interface.

To make a long story short a 6500 msfc does neigher support physical tokenring interfaces nor snasw.

So as long as there is no other configuration on your system. Something like a dspu might be able to use the vtok, then you can simly delete the vtok interfaces.

thanks...

Matthias

[huw.morgan]

Thanks for your advice Matthias.

Kind regards,

Huw