Jon Austin > > Which part of the circut is ATM? I know that in Australia, you can > train to PPPoA (for bridged connections) or PPPoE for a routed > connection. Depending on the provider and what type of sessions they > will terminate. > > If, as an ISP, you purchase a Layer 2 & 3 service from Telstra to > terminate your sessions in each state on, you can choose ATM or > Ethernet termination (ethernet was only just introduced because > everyone was screaming about how expensive ATM was).
Between CPE and DSLAM it is always ATM. You can either terminate the ATM at the DSLAM and switch to ethernet/IP there, or extend the ATM to a central aggregation point at the telco or even the ISP and place your BBRAS / Access Concentrator there. On top of that you can run PPPoA or ethernet (usually called RFC 1483), and on top of the ethernet you can run PPPoE again. Traditionally it was all ATM all the way to a central aggregation point, but the price and the problems in getting multicast running over ATM means there is a very clear move towards ethernet in the Netherlands. Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Find out how CFTicket can increase your company's customer support efficiency by 100% http://www.houseoffusion.com/banners/view.cfm?bannerid=49 Message: http://www.houseoffusion.com/lists.cfm/link=i:5:146233 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/5 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:5 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
