[OpenAFS] Re: UDP timeouts
Mon, 9 May 2011 10:25:37 -0500
On Mon, 09 May 2011 11:03:42 -0400
Jeffrey Altman <email@example.com> wrote:
> The port number used is irrelevant. The question is whether the
> firewall or NAT keeps the port open or not. There is no guarantee
> that a client will use port 7001 either. That is simply the standard
Yes, but it seems unlikely that a client that is using 7001 would need
keepalives to keep a port mapping active. It's not perfect, but I was
just trying to think of a way of reducing the potentially huge increase
in unnecessary traffic (and CheckHost_r delays) for sites that don't
have any NAT clients and don't care.
But if it doesn't matter, then sure, turn it on always.
> The file server can use rx NatPing on the callback connection. It
> just shouldn't be conditional on a port number.
NatPing I'd be more comfortable with turning on unconditionally, since
we don't wait for a response or anything and it's just a single packet.