Question about tcp keep-alive timer

2014-08-10 Thread David Bar
Hi (Forgive me if this topic has been discussed before. I didn't find it in the archives) In tcp_input(), when a packet is received on an established socket the code re-arms the keep-alive timer, for each packet. Here: https://svnweb.freebsd.org/base/release/10.0.0/sys/netinet/tcp_input.c?revisi

Re: A problem on TCP in High RTT Environment.

2014-08-10 Thread Niu Zhixiong
Hi, I am not sure whether my last email is filtered by mailing list. After disabled tso, the speed become even poorer. This is the packets captures. Plz see google drive. tcp_with_tso_off.pcapng.gz Regards, Niu Zhixi

Re: Geolocalization daemon

2014-08-10 Thread David Carlier
Hi and thanks for your interest. Will need some port as it uses imsg from OpenBSD's libutil and more generally the OpenBSD's "trend". Who is interested can have a look here https://github.com/devnexen/geoloc On 10 August 2014 11:30, Sami Halabi wrote: > Souns very interesting.. would love to s

Geolocalization daemon

2014-08-10 Thread David Carlier
Hello. I made recently a new daemon for OpenBSD which provides Geolocalization infos from an IP address. I'd like to know if in any way it might interest so I could port it for another BSD ? Kind regards. David CARLIER Afilias Technologies ___ freebsd-n

Re: A problem on TCP in High RTT Environment.

2014-08-10 Thread grenville armitage
On 08/10/2014 12:23, John-Mark Gurney wrote: [..] The next thing would be to get a tcpdump, and take a look at the window size.. Wireshark has lots of neat tools to make this analysis easy... Another tool that is good is tcptrace.. It can output a variety of different graphs that wil