> Saku Ytti
> Sent: Sunday, January 24, 2016 8:05 PM
> To: Alexandre Snarskii
> Cc: [email protected]
> Subject: Re: [c-nsp] MPLS and links with limited MTU size
>
> On 24 January 2016 at 16:35, Alexandre Snarskii <[email protected]> wrote:
> > Not sure if it can be done with Cisco, with Juniper MX it's possible
> > since JunOS 14.2.
>
> MX Trio has very good fragmentation rate, it's done in the NPU (there is per-
> flow limit which is no where near wirerate). But for example ASR9k will
> fragment on LC CPU, so you really don't want to fragment on ASR9k.
>
Interesting I didn't know that, do you know if LU or MQ is responsible for the
fragmentation? But I'm afraid it would overload the Trio ensemble pretty
quickly.
Yeah, on ASR9K the "to be fragmented" traffic has to be punted to LC CPU and
that is subject to LPTS rate-limiting.
adam
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