[e2e] tcp connection timeout

[Saikat Guha]

On Tue, 2006-02-28 at 23:53 -0600, Brahim Ben wrote:
> Some implementations of TCP implement a timer called Keepalive timer,

The default operation of the keepalive timer depends on the OS. Linux
and Windows don't send keepalives by default, as far as I recall; when
enabled, the recommended default value is around 2 hours.

Also, some NAT/firewalls will timeout idle connections long before that
(usually 1h, sometimes as low as 15m, or as high as 5d). Depending on
the host OS, an idle connection abandoned by a NAT/firewall can show up
as a timeout error.

cheers,
-- 
Saikat
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
Url : http://www.postel.org/pipermail/end2end-interest/attachments/20060301/e05b2dd0/attachment.bin