[c-nsp] Troubleshoot UDP out-of-sequence

[Persio Pucci]

Kevin,

all Cisco gear, in the following order:

7200 receiving the multicast on a NPE-G1, sending on the same NPE-G1 to a
7600, arriving on a ws6748 with DFC3, going to a OC12 to Rio, arriving on a
7600 on a OC12, uplinking to a 3560 via a Sup32, 3560 going to NY arriving
on a 6500 on a ws6748 with DFC3. There are RADs converting GigE to SDH on
both Rio and NY.

On Tue, Sep 13, 2011 at 12:15 AM, Kevin Loch <kloch at kl.net> wrote:

> Persio Pucci wrote:
>
>> Hi folks,
>>
>> I am having some problems trying to figure out what could be causing UDP
>> packets get out-of-sequence on some multicast streams (market data)
>> between
>> Sao Paulo and New York.
>>
>
> Are there any Juniper M160's in the path of the packets?  Those were
> notorious for re-ordering packets when using FPC-2 and multiple fabric
> modules.
>
> - Kevin
>