Subject: Re: [PATCH] net: compute a more reasonable default ip6_rt_max_size

From: Arun Sharma <[email-masked]>
Date: Fri, 25 May 2012 17:44:39 -0700

On 5/25/12 5:11 PM, David Miller wrote:

>> These were not admin configured routes. They were discovered via ipv6
>> neighbor discovery.
>
> Then such default routes should either be:
>
> 1) Passed over by GC
>
> 2) Trigger neighbour discovery when GC'd

It's possible that there is a bug somewhere - we didn't get a chance to 
dig deeper. What we observed is that as we got close to the 4096 limit, 
some hosts were becoming unreachable. A modest increase in the routing 
table size made things better.

  -Arun