So was there an answer to this? We have at least 10 T1 lines into our Cisco router and from the router, 1 Fast Ethernet going into the * server. If we slap another nic card into the * server, will/can * do any kind of load balancing between the two interfaces?
We are not using any Zap cards as all our calls go thru the Cisco router as SIP. Thanks, Matthew ----- Original Message ----- From: "Glenn Dalgliesh" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[EMAIL PROTECTED]> Sent: Thursday, September 16, 2004 12:35 PM Subject: Re: [Asterisk-Users] Beyond T1 > Well, you might be better off at that scale to use a cisco as5850 or equiv > with SER and Asterisk. I might not work so well with 672 calls going thru 1 > asterisk box. > > ds3 <-> Cisco as5850 <-> Asterisk (Possible multiple depending on actual > config and use) > > > ----- Original Message ----- > From: "Marcelo Pacheco" <[EMAIL PROTECTED]> > To: "Asterisk Users Mailing List - Non-Commercial Discussion" > <[EMAIL PROTECTED]> > Sent: Thursday, September 16, 2004 12:52 PM > Subject: Re: [Asterisk-Users] Beyond T1 > > > > I'm no E1 expert, but as I understand one channel is wasted with framing, > so > > it is as 2048000 bps link, where one 64000 bps channel is wasted with > > signalling. So there's 31 channels left. If you use E&M, FXS or FXO, you > > could get 31 voice channels, with PRI or MFC/R2D you get 30 voice > channels. > > > > I now that from the fact that a full E1 with EuroISDN gives you 30 voice > > channels. > > > > An a full E1 with Brazilian R2D also gives you 30 voice channels, as one > > channel is used for signalling as CAS (Channel Associated Channeling), > where > > each 4 bits is used for each channel. > > > > The only situation where you get closer to actual 2mbps out of an E1 > channel > > is when you run SyncPPP, Frame Relay or another bit synchronous protocol > on > > the full trunk/link, where you throw away the channelling and use the > whole > > link as one big synchronous bit pipe. > > > > Marcelo Pacheco > > > > Em Qui 16 Set 2004 13:26, Andrew Kohlsmith escreveu: > > > On Thursday 16 September 2004 12:17, Andrew Thompson wrote: > > > > Depending on where you using the circuits, you might try an E1. It > uses > > > > the same total bandwidth as a T1(I think), but splits the channels at > > > > 56K instead of 64K, yielding more channels. (And now I can't remember > > > > the number.) > > > > > > uh, no. This is definitely NOT correct. > > > > > > T1 is 24 8-bit channels + 1 framing bit sent 8000 times a second. > 24*8+1 = > > > 193 bits per frame * 8000 = 1554000bps. > > > > > > E1 is 32 8-bit channels + 1 framing bit sent 8000 times a second. > 32*8+1 = > > > 2056000bps. > > > > > > (my E1 knowlege is poor, I hope I am not furthering the misinformation > > > here) > > > > > > In both cases you get 64kbit clean channels unless you're doing > robbed-bit > > > (inband) signalling. > > > > > > -A. > > _______________________________________________ > > Asterisk-Users mailing list > > [EMAIL PROTECTED] > > http://lists.digium.com/mailman/listinfo/asterisk-users > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
