Re: [PATCH] net: compute a more reasonable default ip6_rt_max_size
From: David Miller <davem@davemloft.net>
Date: 2012-05-25 22:51:39
Also in:
lkml
From: Arun Sharma <redacted> Date: Fri, 25 May 2012 15:22:54 -0700
On 5/25/12 1:47 PM, Eric Dumazet wrote:quoted
On Fri, 2012-05-25 at 13:15 -0700, Arun Sharma wrote:quoted
The algorithm is based on ipv4 and alloc_large_system_hash().Why is it needed at all ? IPv4 has a route cache with potentially millions of entries, not IPv6.With the default size of 4096 for the ipv6 routing table, entries can get garbage collected and hosts could lose their default route and therefore lose connectivity. We actually saw it happen.
Under no circumstances should administrator configured ipv6 routes be garbage collected, that is a bug.