[c-nsp] debug mpls packet

[roy]

roy wrote:
> Oliver Boehmer (oboehmer) wrote:
>>>>> Does anyone know what the middle number represents in a "debug mpls
>>>>> packet" ( eg: {7963 6 254} )?
>>>>> I can't find this information anywhere.
>>>>>
>>>>> 7693 = Label
>>>>> 6 = ???
>>>>> 254 = I presume is the TTL
>>>>>
>>>>> What does the 6 represent??
>>>> it's the EXP value. you're right about the last being the TTL.
>>>>
>>>>     oli
>>> Could it be the 3-bit EXP and 1-bit Bottom of Stack Flag combined?
>>
>> Hmm, why do you think so? Looking at the code, it only prints the 3 exp.
>> bits.
> 
> Cisco must have combined RFC3032 [2.1. Encoding the Label Stack] into 
> one value.

Referring to EXP/CoS + S, that is.


Roy