O.Kamal
2007-Jan-15 14:28 UTC
[asterisk-users] connecting 2 asterisk servers through OpenVPN
I am trying to connect 2 asterisk servers through OpenVPN, the VPN should carry 16 channel, however when active channels reached 4 concurrent channels, the connection became unstable, with a very high latency (around 900ms), the internet bandwidth is 1Mbps on each server, I have upgraded the bandwidth to double it, but still have exactly the same problem. Any tips or recommendations on such setup? I am using SIP and G729 between the 2 servers, openVPN using UDP with no compression. Thanks, O.Youssef -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070115/dce0a670/attachment.htm
O.Kamal wrote:> I am trying to connect 2 asterisk servers through OpenVPN, the VPN > should carry 16 channel, however when active channels reached 4 > concurrent channels, the connection became unstable, with a very high > latency (around 900ms), the internet bandwidth is 1Mbps on each > server, I have upgraded the bandwidth to double it, but still have > exactly the same problem. > > Any tips or recommendations on such setup? > > > I am using SIP and G729 between the 2 servers, openVPN using UDP with > no compression.Maybe you need more CPU resources for the vpn. In that case you would see problems even if both endpoints were on a gigabit LAN.
Gordon Henderson
2007-Jan-15 15:36 UTC
[asterisk-users] connecting 2 asterisk servers through OpenVPN
On Mon, 15 Jan 2007, O.Kamal wrote:> I am trying to connect 2 asterisk servers through OpenVPN, the VPN should > carry 16 channel, however when active channels reached 4 concurrent > channels, the connection became unstable, with a very high latency (around > 900ms), the internet bandwidth is 1Mbps on each server, I have upgraded the > bandwidth to double it, but still have exactly the same problem. > > Any tips or recommendations on such setup?No real answers, but questions that might help ... Have you tried it without using OpenVPN? Just port-forward the SIP & RTP ports, if you need to and give it a go.> I am using SIP and G729 between the 2 servers, openVPN using UDP with no > compression.Why not IAX? Are your openVPN end-points up to it? Doing high-grade encryption in software might challenge some slower processors - are the VPN endpoints the asterisk boxes themselves? Gordon
O.Kamal
2007-Jan-16 03:31 UTC
[asterisk-users] connecting 2 asterisk servers through OpenVPN
There is no problem with the CPU utilization, it is around 40%, I will not be able to try this without the VPN, maybe I should try another VPN solution like OpenSwan, or PPTP. Why do you think that IAX will make a difference than SIP? On 1/16/07, Gordon Henderson <gordon+asterisk@drogon.net> wrote:> > On Mon, 15 Jan 2007, O.Kamal wrote: > > > I am trying to connect 2 asterisk servers through OpenVPN, the VPN > should > > carry 16 channel, however when active channels reached 4 concurrent > > channels, the connection became unstable, with a very high latency > (around > > 900ms), the internet bandwidth is 1Mbps on each server, I have upgraded > the > > bandwidth to double it, but still have exactly the same problem. > > > > Any tips or recommendations on such setup? > > No real answers, but questions that might help ... > > Have you tried it without using OpenVPN? Just port-forward the SIP & RTP > ports, if you need to and give it a go. > > > I am using SIP and G729 between the 2 servers, openVPN using UDP with no > > compression. > > Why not IAX? > > Are your openVPN end-points up to it? Doing high-grade encryption in > software might challenge some slower processors - are the VPN endpoints > the asterisk boxes themselves? > > Gordon > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070116/83069a74/attachment.htm
IAX allows trunking. With 16 channels open between 2 asterisk servers that should recover over 400kbs compared to SIP. I believe OpenVPN can be forced into a no-encryption test mode. If you can do that temporarily it is easier to judge the vpn overhead. O.Kamal wrote:> There is no problem with the CPU utilization, it is around 40%, I will > not be able to try this without the VPN, maybe I should try another > VPN solution like OpenSwan, or PPTP. > > Why do you think that IAX will make a difference than SIP? > > On 1/16/07, *Gordon Henderson* <gordon+asterisk@drogon.net > <mailto:gordon+asterisk@drogon.net>> wrote: > > On Mon, 15 Jan 2007, O.Kamal wrote: > > > I am trying to connect 2 asterisk servers through OpenVPN, the > VPN should > > carry 16 channel, however when active channels reached 4 concurrent > > channels, the connection became unstable, with a very high > latency (around > > 900ms), the internet bandwidth is 1Mbps on each server, I have > upgraded the > > bandwidth to double it, but still have exactly the same problem. > > > > Any tips or recommendations on such setup? > > No real answers, but questions that might help ... > > Have you tried it without using OpenVPN? Just port-forward the SIP > & RTP > ports, if you need to and give it a go. > > > I am using SIP and G729 between the 2 servers, openVPN using UDP > with no > > compression. > > Why not IAX? > > Are your openVPN end-points up to it? Doing high-grade encryption in > software might challenge some slower processors - are the VPN > endpoints > the asterisk boxes themselves? > > Gordon > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com > <http://Easynews.com> -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > >------------------------------------------------------------------------ > >_______________________________________________ >--Bandwidth and Colocation provided by Easynews.com -- > >asterisk-users mailing list >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >
Hello Asterisk, Can anyone help or put some light on, how can I configure Asterisk to work with SS7? What do I need, in terms of Hardware and Software? Regards, Neel
Hi Nitesh -> Please can anyone explain what is the difference between TE405P and TE410P? > > According to the data sheet, the difference I see is the PCI voltage. > > TE405P use only 5.0 volt PCI slot and TE410P use only 3.3 volt PCI.That is the only difference. - Noah