Re: [Asterisk-Users] Zaptel DACS and FDL
On Feb 16, 2005, at 7:19 PM, Eric Wieling wrote: Jerry wrote: On Feb 16, 2005, at 3:07 PM, Eric Wieling wrote: I have the following configuration: CLEC - T-1 - Asterisk - Adtran Channel Bank - (analog) - Nortel Don't complain that it's ugly. I've already done plenty of that. The CLEC manages their Adtran remotely and needs to be able to continue to do so. I assume they use FDL to do the management. We are using the Zaptel DACS/DACSRBS to cross connect some of the channels directly between the CLEC and the Adtran. These are channels we don't really care about (data, other voice, etc). We are not cross connecting all the channels, just some of them. I'm wondering if/how I can make sure the remote management via FDL continues to work. Does anyone have any information on this or suggestions or anything? What you dropped from your diagram is the T1 from * to the channel bank. FDL is a link level protocol. It is carried in the framing bits of the T1 not within the payload bits. When you use the digium (I presume) card within your * server as a DACS this is connecting the payload, ie timeslot, bits from one port to another. FDL will not work this way. DACSRBS does DACS the robbed bit signalling. I assume this won't help? Ah well. We'll try to find some other way to do Robbed bit refers to robbing a bit from the payload - hence the name - and the reason you can only get a 56k channel on links utilizing this form of signalling - vs 64k when not. ___ 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] Zaptel DACS and FDL
Jerry wrote: On Feb 16, 2005, at 7:19 PM, Eric Wieling wrote: Jerry wrote: On Feb 16, 2005, at 3:07 PM, Eric Wieling wrote: I have the following configuration: CLEC - T-1 - Asterisk - Adtran Channel Bank - (analog) - Nortel Don't complain that it's ugly. I've already done plenty of that. The CLEC manages their Adtran remotely and needs to be able to continue to do so. I assume they use FDL to do the management. We are using the Zaptel DACS/DACSRBS to cross connect some of the channels directly between the CLEC and the Adtran. These are channels we don't really care about (data, other voice, etc). We are not cross connecting all the channels, just some of them. I'm wondering if/how I can make sure the remote management via FDL continues to work. Does anyone have any information on this or suggestions or anything? What you dropped from your diagram is the T1 from * to the channel bank. FDL is a link level protocol. It is carried in the framing bits of the T1 not within the payload bits. When you use the digium (I presume) card within your * server as a DACS this is connecting the payload, ie timeslot, bits from one port to another. FDL will not work this way. DACSRBS does DACS the robbed bit signalling. I assume this won't help? Ah well. We'll try to find some other way to do Robbed bit refers to robbing a bit from the payload - hence the name - and the reason you can only get a 56k channel on links utilizing this form of signalling - vs 64k when not. Yes, but does FDL run over the per channel robbed bit signalling or does it run over the T-1 signaling. i.e. Does FDL run using ESF (applies to the whole T-1) or does it run on the robbed bit signaling for specific channels? ___ 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] Zaptel DACS and FDL
Yes, but does FDL run over the per channel robbed bit signalling or does it run over the T-1 signaling. i.e. Does FDL run using ESF (applies to the whole T-1) or does it run on the robbed bit signaling for specific channels? FDL is carried in some surplus bits within the ESF frame, not within the payload. Follow this link for a good article describing T1/E1s. http://www.commsdesign.com/showArticle.jhtml?articleID=16501900 ___ 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] Zaptel DACS and FDL
On Feb 16, 2005, at 3:07 PM, Eric Wieling wrote: I have the following configuration: CLEC - T-1 - Asterisk - Adtran Channel Bank - (analog) - Nortel Don't complain that it's ugly. I've already done plenty of that. The CLEC manages their Adtran remotely and needs to be able to continue to do so. I assume they use FDL to do the management. We are using the Zaptel DACS/DACSRBS to cross connect some of the channels directly between the CLEC and the Adtran. These are channels we don't really care about (data, other voice, etc). We are not cross connecting all the channels, just some of them. I'm wondering if/how I can make sure the remote management via FDL continues to work. Does anyone have any information on this or suggestions or anything? What you dropped from your diagram is the T1 from * to the channel bank. FDL is a link level protocol. It is carried in the framing bits of the T1 not within the payload bits. When you use the digium (I presume) card within your * server as a DACS this is connecting the payload, ie timeslot, bits from one port to another. FDL will not work this way. ___ 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] Zaptel DACS and FDL
Jerry wrote: On Feb 16, 2005, at 3:07 PM, Eric Wieling wrote: I have the following configuration: CLEC - T-1 - Asterisk - Adtran Channel Bank - (analog) - Nortel Don't complain that it's ugly. I've already done plenty of that. The CLEC manages their Adtran remotely and needs to be able to continue to do so. I assume they use FDL to do the management. We are using the Zaptel DACS/DACSRBS to cross connect some of the channels directly between the CLEC and the Adtran. These are channels we don't really care about (data, other voice, etc). We are not cross connecting all the channels, just some of them. I'm wondering if/how I can make sure the remote management via FDL continues to work. Does anyone have any information on this or suggestions or anything? What you dropped from your diagram is the T1 from * to the channel bank. FDL is a link level protocol. It is carried in the framing bits of the T1 not within the payload bits. When you use the digium (I presume) card within your * server as a DACS this is connecting the payload, ie timeslot, bits from one port to another. FDL will not work this way. DACSRBS does DACS the robbed bit signalling. I assume this won't help? Ah well. We'll try to find some other way to do it. ___ 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
