cvs commit: src/sys/netinet in_gif.c

[Gleb Smirnoff]

On Tue, Dec 07, 2004 at 02:03:02PM +0900, SUZUKI Shinsuke wrote:
S> - you need the same fix to sys/netinet6/in6_gif.c (for IPv4 over IPv6
S>   tunnel)
S>   
S> - it seems like sys/net/if_stf.c also needs the similar fix
S>   (I haven't confirmed it though, I'll check it later)
S> 
S> - Here's a patch to update route cache periodically, to prevent
S>   unexpected gif failure due to a stale route cache.  Is it okay to
S>   commit it together with your change?

The only reasonable value for in_gif_rtcachettl would be 1 second.
I don't think a 300 second lag in network is acceptable for us. Even 5
second lag is not.

I admit that my fix is dirty and should be reworked. I like Ruslan's idea.
We should reallocate route every time when routing table age changes.
This does not happen too often, and this will give us ability to switch
to a new route as fast as possible with zero packet loss.

As soon as Ruslan commits route table aging, I will fix in_gif and in6_gif.c
and look at other tunnels. I'll send both of you patches for review.

P.S. I've written to net@ a week ago. Why do I get review only after change
is commited? 

-- 
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE