On Wed, Feb 11, 2009 at 10:21:20PM +1100, Amos Shapira wrote: > 2009/2/11 Gilad Ben-Yossef <gi...@codefidence.com>: > > I and others can go on. Asterisk works. I donno about the other stuff > > Thanks for the testimonial. > > > (FreePBX etc.) but Asterisk is prodction level system *If you know what you > > FreePBX claims to be a nice web gui for Asterisk, that's why I asked about it. > > > are doing*. Being that you are an experienced Linux user that has no issue > > editing rc files or RTFM I believe you've already got 95% of the reasons why > > Asterisk installation fail covered. :-) > > Thanks for the reassurance. I've just ordered a vpslink Xen guest but > the ssh latency from my home is very slow (I'm actually connected > through a pretty good ISP). I'll try it from work tomorrow. > > Is 200ms ping time too much for SIP, or is it irrelevant.
Besides the latency, another factor to consider is the jitter: $ ping -c 10 kernel.org PING kernel.org (204.152.191.37) 56(84) bytes of data. 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=1 ttl=52 time=232 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=2 ttl=52 time=232 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=3 ttl=52 time=233 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=4 ttl=52 time=233 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=5 ttl=52 time=233 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=6 ttl=52 time=232 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=7 ttl=52 time=233 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=8 ttl=52 time=233 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=9 ttl=52 time=232 ms 64 bytes from pub2.kernel.org (204.152.191.37): icmp_seq=10 ttl=52 time=232 ms --- kernel.org ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9038ms rtt min/avg/max/mdev = 232.102/233.035/233.960/0.773 ms As you can see, I have a very predictable latency. This generally means packets will arrive on time. Here's a less optimal example: $ ping -c 10 lxer.linux.no ping: unknown host lxer.linux.no tzaf...@sweetmorn:~$ ping -c 10 lxr.linux.no PING lxr.linpro.no (87.238.46.5) 56(84) bytes of data. 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=1 ttl=45 time=235 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=2 ttl=45 time=203 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=3 ttl=45 time=211 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=4 ttl=45 time=210 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=5 ttl=45 time=205 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=6 ttl=45 time=209 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=7 ttl=45 time=208 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=8 ttl=45 time=207 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=9 ttl=45 time=200 ms 64 bytes from lxr.linpro.no (87.238.46.5): icmp_seq=10 ttl=45 time=242 ms --- lxr.linpro.no ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9038ms rtt min/avg/max/mdev = 200.634/213.566/242.968/13.399 ms -- Tzafrir Cohen | tzaf...@jabber.org | VIM is http://tzafrir.org.il | | a Mutt's tzaf...@cohens.org.il | | best ICQ# 16849754 | | friend _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
