Re: Jumbo Frames

I was running Jumbo frames at my previous employer within the datacenter
and it all works fine. Cisco Nexus using 10Gb links and FCOE and it all
worked without issue. As others have said, once it hits the Internet or
your WAN, it's going to fragment due to the 1500 MTU.

I didn't notice any issues with ASA CPU spikes due to Jumbo frames... I did
notice spikes from VoIP over VPN but that's another discussion. :)

Overall, I didn't see any problems from enabling them.

On Tue, Jan 8, 2013 at 9:35 AM, marc abel <marcabel_at_gmail.com> wrote:

> Is anyone currently using Jumbo frames in their environments? If so what
> kinds of performance increases (if any) have you seen and what sort of pain
> points have you experienced.
>
> Are you running it in a small segment of your network or across the entire
> environment? Are you running it in your data centers, your campuses, or
> both?
>
> I've been doing some reading on the topic and opinions seem all over the
> place on this. Personally I have set it up in the lab and it did seem to be
> somewhat beneficial, but then I think about taking it to my environment and
> i wonder what happens when that flood of 9K packets hits the edge ASA and
> has to be fragmented and shipped over a VPN. Does the ASA spike it's CPU
> and roll over? What happens if you are carrying VOIP traffic on the same
> links?
>
> All thoughts and opinions appreciated.
> --
> Marc Abel
> CCIE #35470
> (Routing and Switching)
>
>
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Received on Tue Jan 08 2013 - 13:33:58 ART