[c-nsp] Issue with Multilink PPP when going from 12.3T to 12.2S

[Dave Temkin]

I originally put 12.2.25Ssomething on there, and then I downgraded to
12.2.18S5 (I believe) before I left last night and that resolved it.

dCEF was definitely on.  The other side of the bundle is a 2821.

I'll get the show ppp multilink from the other box when I  get back in on
Monday.

Thanks!
-Dave


On Thu, 20 Oct 2005, Rodney Dunn wrote:

> Is this from the 75xx or the other side. What is the other side
> of the bundle.
>
> Please provide 'sh ppp mul' and make sure dCEF is on for the 75xx.
>
> It's pretty near impossible to tell the full difference in the
> switching paths between 12.3T and 12.2S (what version of
> 12.2S by the way?).
>
> On Thu, Oct 20, 2005 at 05:54:36PM -0400, Dave Temkin wrote:
> > I just "downgraded" (if you can call it that) a 7500 from 12.3T to 12.2S,
> > and am noticing a performance change on a multilink PPP bundle of 2 T1's.
> >
> > Before, using a packet generator, I was able to get the link up to just
> > over 3Mbps.  Now, I'm barely able to break 2.5.
> >
> > I noticed the following - notice the high amount of reordered packets.
> >
> > Multilink1, bundle name is CR1
> >   Endpoint discriminator is CR1
> >   Bundle up for 00:29:48, 1/255 load
> >   Receive buffer limit 32768 bytes, frag timeout 1000 ms
> >     0/0 fragments/bytes in reassembly list
> >     0 lost fragments, 182847 reordered
> >
> >
> > These are two routers connected back to back, so it's not that the lines
> > are different lengths...
> >
> > The packet sizes are the same between my tests, so I don't think it's any
> > difference from that direction.
> >
> > Does anyone know of any changes to the handling of MPPP between the
> > versions?
> >
> > Thanks,
> > -Dave
> >
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