Re: draft-wang-6man-flow-label-reflection

[Jeroen Massar <[e-mail]>]

On 2014-11-14 19:33, joel jaeggli wrote:
> On 11/14/14 7:52 AM, Sheng Jiang wrote:
>> Hi, Jeroen,
>>
>> We can certainly add some consideration in the future version
>> regarding to ICMPv6 and "Packet too big". However, could you be more
>> specific what your concern is regarding to ICMPv6 and flow label
>> reflection?
>>
>> BTW, the v6ops draft you mentioned does not have any discussion
>> regarding to flow label.
> 
> 20 bits alone isn't enough to identify a flow, certainly not when the
> source has changed. I have more flows then that on a single path.

I hear you there ;)

It is only a bit shy of a max of 1 million combos.

> this doesn't help at all with hashing where you would be forced to use
> dest + flow label to make any sense of of this becuase that's going to
> be lumpy as hell given number of flows with 0 flow label and a finite
> number of dests

That is a study I have to do. Will try to get around to that this
weekend by deploying something in SixXS.


Would be great if an org like Google could do a similar study, seeing
how they are effectively capturing and analyzing all packets any way...

Greets,
 Jeroen