[c-nsp] Packet Fragmentation

[Brian Christopher Raaen]

Currently, using Cisco 3800's.  Unfortunately, because the traffic is UDP,
mss adjust can't be used to adjust the frame size.  The fragmentation is
unavoidable as this involves VPNs and the applications can't be adjusted to
try smaller sized frames.

Are there any documents that show the impact for each platform?  I can find
pps, throughput, etc... but nothing says how fragments impact things.  My
concern is that a larger router may not be any better in this particular
regard than what I already have.

On Thu, Feb 12, 2015 at 12:41 PM, Jared Mauch <jared at puck.nether.net> wrote:

>         This all varies depending on the platform, perhaps more details
> about the platforms involved?
>
>         Ideally you should not be fragmenting at all, or doing mss
> adjust to avoid it.
>
>         - Jared
>
> On Thu, Feb 12, 2015 at 11:59:50AM -0500, Brian Christopher Raaen wrote:
> > Are there any specs from Cisco about the impact of Packet
> Fragmentation.  I
> > have a pair of routers where I believe fragmentation may be causing
> > issues.  I am trying to understand the impact of the fragments, and what
> > router upgrade options we may have of the impact of an upgrade.
> >
> > --
> > Brian Christopher Raaen
> > Network Architect
> > Zcorum
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
>
> --
> Jared Mauch  | pgp key available via finger from jared at puck.nether.net
> clue++;      | http://puck.nether.net/~jared/  My statements are only
> mine.
>



-- 
Brian Christopher Raaen
Network Architect
Zcorum