Re: [Asterisk-Users] Voice over Frame Relay Asterisk
Has anyone done Voice Over Frame Relay with Asterisk. With Frame Relay work reliably with Asterisk? Any experiences? If you're talking about transporting voip calls across a path that includes frame relay links, yes it works just fine if you frame network is not congested. Frame relay networks can and _may_ drop packets if the traffic exceeds the committed information rate (cir), depending upon exactly how your provider has their frame switches configured. Dropped packets is less of an issue now in frame networks then what they use to be, and the primary reason for that is the abundance of inexpensive bandwidth currently deployed between frame switches. There is a pecking order in terms of which packets are candidates for being dropped, with broadcast traffic being high on that list. It is very difficult to determine exactly where packets are dropped as you (the user) are never notified by the frame provider when/if they dropped any in their switches. And, if they do drop packets you won't be able to detemine whether those that were dropped were in fact broadcast packets or tcp/udp packets, etc. The BECN and FECN counts can be used to determine if the frame provider is recognizing whether you exceeded your cir rate, however in most real world implementations a BECN or FECN does _not_ translate into a dropped packet (at least in the US). You might want to download Qcheck (it was originally written by NetIQ but spun off to another company now) to evaluate the end-to-end bandwidth. Its a free utility that will help determine what is actually available in terms of bandwidth. If your frame network is congested, you might be able to implement QoS at the border routers to give some preference to voip packets. Rich ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Voice over Frame Relay Asterisk
Great, thanks, that was the information I was looking for. --- Rich Adamson [EMAIL PROTECTED] wrote: Has anyone done Voice Over Frame Relay with Asterisk. With Frame Relay work reliably with Asterisk? Any experiences? If you're talking about transporting voip calls across a path that includes frame relay links, yes it works just fine if you frame network is not congested. Frame relay networks can and _may_ drop packets if the traffic exceeds the committed information rate (cir), depending upon exactly how your provider has their frame switches configured. Dropped packets is less of an issue now in frame networks then what they use to be, and the primary reason for that is the abundance of inexpensive bandwidth currently deployed between frame switches. There is a pecking order in terms of which packets are candidates for being dropped, with broadcast traffic being high on that list. It is very difficult to determine exactly where packets are dropped as you (the user) are never notified by the frame provider when/if they dropped any in their switches. And, if they do drop packets you won't be able to detemine whether those that were dropped were in fact broadcast packets or tcp/udp packets, etc. The BECN and FECN counts can be used to determine if the frame provider is recognizing whether you exceeded your cir rate, however in most real world implementations a BECN or FECN does _not_ translate into a dropped packet (at least in the US). You might want to download Qcheck (it was originally written by NetIQ but spun off to another company now) to evaluate the end-to-end bandwidth. Its a free utility that will help determine what is actually available in terms of bandwidth. If your frame network is congested, you might be able to implement QoS at the border routers to give some preference to voip packets. Rich ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users __ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[Asterisk-Users] Voice over Frame Relay Asterisk
Has anyone done Voice Over Frame Relay with Asterisk. With Frame Relay work reliably with Asterisk? Any experiences? __ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Voice over Frame Relay Asterisk
On Fri, 2005-03-04 at 12:44 -0800, asterisk phones wrote: Has anyone done Voice Over Frame Relay with Asterisk. With Frame Relay work reliably with Asterisk? Any experiences? Doesn't look like you visited google first. Nor did you bother to look at the code. channels/adtranvofr.h [EMAIL PROTECTED]:/usr/src/asterisk/configs$ more adtranvofr.conf.sample ; ; Voice over Frame Relay (Adtran style) ; ; Configuration file [interfaces] ; ; Default language ; ;language=en ; ; Lines for which we are the user termination. They accept incoming ; and outgoing calls. We use the default context on the first 8 lines ; used by internal phones. ; context=default ;user = voice00 ;user = voice01 -- Steven Critchfield [EMAIL PROTECTED] ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
