2. Ameritech & PacBell Network Access Point Presented to NANOG February 11, 2002 By Tony Haeuser – Strategic Marketing NAP Product Manager

3. 2 SBC NAP Attributes PacBell  In operation since 1994  55 customers / 70 ports  13 distributed Cisco BPX ATM switches Collocated in distributed C.O.s: (11) in LATA 1 & (2) in LATA 5  DS-3, OC-3c, OC-12c  Busy Hour throughput = 2.5Gbps  Bundled port and transport  PVCs added upon individual requests Ameritech In operation since 1994 130 customers / 160 ports 5 centralized Lucent GX 550/500 ATM switches Centralized in data subsidiary switch site in downtown Chicago. DS-3, OC-3c, OC-12c Busy Hour throughput = 6.5Gbps Bundled port & transport Full meshed PVCs for peering established upon port installation Two outages in 7 years/ 2001 MTBF= 100%

4. 3 SBC NAPs Next Gen Development SBC is participant in Starlight: photonic switching. www.startap.net/starlight –Global proving ground in support of grid-intensive e-Science applications, network performance measurement, and technology evaluations Preparing for packet switching / increased bandwidth: –POS, GE, 10 GE, 40 GE Planning for lightwave switching, on demand lambda provisioning. Transparency to ATM exchange using GMPLS. Exploring L3 services: Advanced multicast, IPv6, DIFFserv, enhanced performance monitoring & reporting.

5. 4 SBC NAP Contacts / Web Site HMarketing Contact: Product Manager: Tony Haeuser 312.425.1210 ah2426@sbc.com HASI-North Contact: Operations Manager: Kevin Peterson 847.562.7687 kp1959@sbc.com HASI-West Contact: Planning & Engineering: Greg Cox 925.242.6927 gc6273@sbc.com HWeb site: www.aads.net