[rbridge] Use of 802.1ah Encaps

[Erik Nordmark]

Don Fedyk wrote:
> Hi Eric 
> 
>> -----Original Message-----
>> From: Gray, Eric [mailto:Eric.Gray at marconi.com] 
>>
>> Ali/Don,
>>
>> 	The use of 802.1ah encapsulation does not intuitively 
>> suggest itself in the TRILL problem domain for at least two
>> reasons:
>>
>> 1)	Provider Back-bone Bridging intuitively seems out of
>> 	place in solutions aimed at enterprise networks - and
>> 	this would seem to be even more true for solutions 
>> 	aimed at "plug-and-play" applicability.
> Hmmm Trill spent 1.5 years coming up with a header that looks remarkably
> like 802.1ah. A fact many of us have pointed out before.  If you are
> using an IEEE 802.1 Ethernet data plane your baseline choices are 802.1Q
> or 802.1ah. 

Is there a TTL in the 802.1ah header?

    Erik