Re: [PWE3] PW type identification

["Yaakov Stein" <yaakov_s at rad.com>]

Luca, 

Even so, at some point the 0000 block will be finished,
and IEEE will start allocating from other blocks.

Y(J)S 

-----Original Message-----
From: Luca Martini [mailto:lmartini at cisco.com] 
Sent: Wednesday, June 04, 2008 11:46 PM
To: Yaakov Stein
Cc: Carlos Pignataro; pwe3 at ietf.org
Subject: Re: [PWE3] PW type identification

Yaakov Stein wrote:
>  
>
>   
>> The current (incomplete and heuristic) logic in wireshark is based on
>>     
> the first nibble after the MPLS Label Stack,
>   
>> treating the payload as IPv4 (if "4"), IPv6 (if "6"), PW-ACH (if "1")
>>     
> and Ethernet without FCS the rest of the cases. 
>
> Carlos,
>
> There seems to be a whole in this logic.
> Although most MAC addresses will start with 0000, there are MAC 
> addresses that start with 0001 too (and there is no reason that there 
> will not be with 4 and 6 in the future).
>
>   
Last time I checked those were dead IEEE mac allocations. So it's
unlikely they will ever be used.

Luca

> Y(J)S
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>   

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