[arin-ppml] IPv6 /32 minimum for extra-small ISP

[Marshall Eubanks]

On Apr 14, 2010, at 4:08 PM, Milton L Mueller wrote:

>
>
>> -----Original Message-----
>> From: Bill Woodcock [mailto:woody at pch.net]
>>
>> The router doesn't care how important you think a route is, or how  
>> much
>> you like it, or how many IP addresses or users sit behind it. It's
>> still a route, and the amount of memory it consumes is still just
>> dependent upon its associated path and options.
>
> "everyone else's router."
>
> So when a small ISP in Madagascar advertises a new route, resources  
> are consumed here at my router here at Syracuse University? Please  
> confirm this?

Yes, if you are running BGP, unless their routes are aggregated.

Now, I don't see any routes from  Madagascar just now,
but I do see some from (to pick somewhere at random far from the East  
Coast) Cambodia, including this AS :

ASN  24441         CITYLINK-AS-KH                  [MG213- 
AP]           {Cambodia, KH}                CityLink, Routing AS -  
Service Provider, Phnom Penh, KH

24441 has 202.84.72.0/21, and

show ip bgp 202.84.72.0
BGP routing table entry for 202.84.72.0/21, version 99023878
Paths: (1 available, best #1, table Default-IP-Routing-Table)
   Not advertised to any peer
   174 3491 18403 24441 24441 24441
     38.101.161.116 from 38.101.161.116 (66.28.1.192)
       Origin IGP, metric 3992, localpref 100, valid, external, best
       Community: 11424264 11425277

So, yes, they are in my table, consuming some small amount of flash  
memory. If you're running BGP, you should see them too.

It all adds up.

Regards
Marshall

>
> --MM
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