[c-nsp] mpls label stack limit ???

[Oliver Boehmer (oboehmer)]

There is a limit how far an LSR can peek into the frame for loadsharing
hash decisions (I recall 10 labels deep on the CRS). Other than that, the
MTU is the limit.

CRS can push a max of 7 labels onto the stack, ASR9k does 6.. Don't think
there is any use-case (yet?) that would need to push that many labels.

	oli

On 04/09/2012 15:45, "Pete Lumbis" <alumbis at gmail.com> wrote:

>If you are just talking about stack size, I think your only limit is MTU.
>
>If you are talking about the number of label that can be operated on,
>on a single device, that is going to be a limit of the
>platform/forwarding engine.
>
>-Pete
>
>On Tue, Sep 4, 2012 at 8:01 AM, Adam Vitkovsky <adam.vitkovsky at swan.sk>
>wrote:
>> Is there an upper limit on the number of labels in the label stack on
>>Cisco
>> boxes please? Specifically ASRs and CRSs
>> It appears there's a limit of on Juniper
>>
>> Thanks
>>
>> adam
>>
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