[c-nsp] Debugging LFI fragmentation

[Oliver Boehmer (oboehmer)]

Leonardo Souza <> wrote on Friday, August 31, 2007 4:59 PM:

> Comments inline...
> 
> "Oliver Boehmer (oboehmer)" <oboehmer at cisco.com> escreveu:   
> Leonardo Souza <> wrote on Thursday, August 30, 2007 8:53 PM: 
> 
>> Correct.
>> I sent ping packets with 1500 bytes .
>> My problem is that on the other side, I see no debug output for MLP
>> (events, fragments etc...). By the way, it´s a C10K.
>> It seems a bug. I dont know...
> 
> As the 10k processes the traffic in hardware, I don't think you can
> see them using these debug commands. 
> 
>   Does It happen only for MLP?
>   So I can suppose if I issue a "debug ip packet" I won't see
> anything as well. 

guess you will only see traffic sent from or to the RP itself (much like on other platforms). "debug ip packet" generally only show process-switched packets (at least in all but very recent IOS').

> 
> You could monitor the packet counters on the interfaces involved,
> i.e. if you send 1000 packets, you should see a 1000 packets on the
> bundle master, and 1000 packets on each of the bundle members (i.e.
> 2000 total on the bundle members). This would show you that
> fragmentation is working. Which PRE are you using? I think the PRE1
> doesn't support MLP fragmentation (at least it didn't when I worked
> with this platform a few years ago).      
> 
>   I am using a PRE2.

PRE2 is ok, I recall..

	oli