[Dovecot] Dovecot IDLE bandwidth usage
gerald at ik.ca
Thu Aug 16 19:39:23 EEST 2007
Timo Sirainen wrote:
> TCP keepalives get sent so rarely that they don't keep NATed connections
> alive. (Linux's tcp(7) says the first one is sent after 2h of idling)
Its the same for windows systems, 2 hours.
All routers SHOULD keep the NAT connections open for at least that long.
But its not always the case, a few years ago I had to get a FIX for an
Alcatel Speedtouch Pro since its was originally programed to drop TCP
connections after 15 minutes.
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