the basic problem ISP customer premises how do
the basic problem ISP customer premises how do we efficiently and cost effectively connect services with business subscribers ? VPN FR long dist. local dial
multiservice broadband access ISP customer premises MTU or central office regional POP VPN AN-32 xx MSAP AN-xx IAD AN-32 xx MSAP FR ATM long dist. 4 DSL, T 1, Nx. T 1 4 DS-3, OC-3 4 wireless local dial
multiservice broadband access ISP customer premises MTU (or CO) regional POP VPN AN-32 xx MSAP AN-xx IAD AN-32 xx MSAP FR ATM long dist. integrated access (IADs) data (Ethernet, serial, frame relay) voice (analog, digital) routing, NAT, DHCP, web server, DSS voice compression T 1 or x. DSL trunks MSAP concentrator high density transmission independence (T 1, x. DSL, DS 3) MSAP voice gateway local voice (GR-303) redundancy long distance voice (T 1 CAS) NEBS compliance redundancy NEBS compliance local dial
multiservice broadband access ISP customer premises MTU (or CO) regional POP VPN AN-32 xx MSAP R AN-xx IAD AN-32 xx MSAP FR ATM long dist. objectives: 1. deliver a bundle of services over a single access facility 2. add services dynamically with little or no incremental infrastructure investment Internet access local voice over DSL (Vo. DSL) frame relay access (FRo. DSL) data VPN long distance voice local dial
uniform service delivery / varying access topology ISP customer premises MTU (or CO) regional POP VPN AN-32 xx MSAP R AN-xx IAD AN-32 xx MSAP FR ATM long dist. customer premises 4 DSL, “ 0 -mile” T 1 local dial 4 T 1, Nx. T 1, DS- 3 R AN-xx IAD
- Slides: 6