[c-nsp] Cisco MultiLink PPP

[Ted Mittelstaedt]

Dennis Peng wrote:
> Ted Mittelstaedt [tedm at toybox.placo.com] wrote:
>> cisco-nsp-bounces at puck.nether.net wrote:
>>>> I just converted one of our remote POPs from an NxT1 cef load
>>>> sharing to MLPPP to see if it would help with some VOIP quality
>>>> issues we were having.  Am I right in thinking that MLPPP avoids
>>>> the sort of out of order packet arrival that per-packet cef load
>>>> sharing can cause?...while still doing nearly perfect load sharing
>>>> across a number of T1s?
>>>
>>> Yes, both true..
>>>
>>
>> FALSE!
>>
>> It does great load sharing but you can still have packets arriving
>> out of order.
>
> Can you explain how this occurs? Packets should never be sent
> out-of-order through a multilink bundle.
>

I am not going to attempt to explain it - you can query your coworker
Michael Wall at Cisco who told me this.  I told him repeatedly that it
failed on both ip cef and multilink and he insisted it was an
out-of-order
issue.  If he is full of shit, then educate him,
re-open the TAC case, and get to work fixing the bug.

> Could you also point me to your case number? Thanks.
>

601038235  Titled  "FW Feature and dual T1s IOS don't work together"

Ted