Re: [Testbed-admins] query regarding MIB compatibility with the experiment switch

[Leigh Stoller <stoller@flux.utah.edu>]

> We had the same problem with our Cisco 4006/4506 switches which
> didnt have support for the STACK-MIB.  One option is to check
> whether newer version of the switch IOS software has support for
> those MIBs. If so, you can upgrade the IOS and it should work.  If
> not (in our case), we commented out the code in the emulab software
> which did the port control.  The only disadvantage is that you
> cannot control the port speeds of the switch or NICs and you are
> stuck at a certain speed (1Gbps or 100Mbps depending on your
> switches/NICs). You will have to manually set the port speeds to the
> value from the console.
>
> Utah folks: Maybe there should be some code to check whether
> switches support the MIBs and if not it would neuter the port
> control code?

What I did instead was to add a configure variable (you would put this
in your defs file) called NOSTACKMIB. I prefer this to silently
ignoring port speed and duplex; better to have to set it explicitly so
you know what you are getting into.

This will turn up in the CVS repo in a day or two.

Lbs