1. MAE Evolution Tom Bechly Internet Architecture and Technology

2. 10/23/00MAE Evolution2 MAE ATM - Distributed Exchange Point ÙMAE-ATM East is a distributed exchange point –8100 Boone Blvd, Vienna – original MAE ATM site –12368 E. Sunrise Valley Drive, Reston (8/1) –21830 UUNet Way, Ashburn (10/16) –Additional site planned for 2001 ÙNew Sites have ATM switches, co-location, and transport ÙBenefits of distributing MAE –Increased port, circuit, and co-location capacity –Improved resilience and diverse customer connections ÙMAE-ATM West additional site planned for 2001

3. 10/23/00MAE Evolution3 MAE ATM “Guaranteed” Service ÙCurrent MAE ATM is “Guaranteed” service –ABR service where PCR = 2*MCR –MCR can not exceed fixed percentage of access port speed MCR for DS3 cannot exceed 50% of port speed (22.5 Mbps) MCR for OC3 cannot exceed 33% of port speed (51.1 Mbps) MCR of OC12 cannot exceed 25% of port speed (155.5 Mbps) –Total MCR cannot exceed access port speed

4. 10/23/00MAE Evolution4 MAE ATM “Best Effort” Service ÙNew “Best Effort” service (11/00) –ABR service with congestion control in core –MCR = 100 cells/second –PCR is set to fixed percentage of access port speed PCR for DS3 is 100% of port speed (45 Mbps) PCR for OC3 is 66% of port speed (99.22 Mbps) PCR for OC12 is 50% of port speed (300.67 Mbps) –Total MCR cannot exceed access port speed –Service types can be mixed on same access port

5. 10/23/00MAE Evolution5 MAE-FDDI East Status ÙMAE-FDDI East is being de-commissioned ÙMAE-FDDI East at 8100 Boone Blvd and at 1919 Gallows Road will be turned down on 2/28/01 ÙThere is a FAQ on WWW.MAE.NET that covers the MAE East FDDI to ATM migrationWWW.MAE.NET

6. 10/23/00MAE Evolution6 MAE-FDDI West Status ÙMAE-FDDI West platform was upgraded –Enterasys SSR 8600 implemented at MAE West –Customers connections were migrated to SSR 8600 over period 9/16 thru 10/11 ÙDEC GigaSwitches at MAE West were powered down on 10/12 ÙThere are no plans to de-commission MAE-FDDI West, at this time ÙNo new customers will be added

7. 10/23/00MAE Evolution7 Service Level View

8. 10/23/00MAE Evolution8 Service Goals ÙPublic Point of Presence for exchanging traffic –Equal and neutral access to exchange –Fair in that same rules and policies apply to all ÙStable Service Interface ÙProtect shared resources ÙEnable users to manage Peering relationships –ISP-XXX wants to peer with all –ISP-ZZZ only peers with ISP-AAA ÙExchange point leverages advanced technology

9. 10/23/00MAE Evolution9 MAE Platform Evolution ÙRequirement for capacity in both bandwidth and port speeds will exceed current platform ÙCurrent architecture won’t scale indefinitely ÙFuture requirement for OC48 access ÙCurrently testing MPLS core with Frame Relay Interface –POS ports with Frame Relay encapsulation –Frame Relay DLCI mapped to LSP at core –Access speed of OC3, OC12, and OC48

10. 10/23/00MAE Evolution10 Frame Relay Interface (Pros) ÙService provisioning is straightforward for both Customer and MAE ÙNo routing information exchanged between MAE and CPE ÙMAE technology can change while preserving stable service level interface ÙArchitecture can be extended to provide multi- service interface with no ATM cell tax ÙCustomer CPE saving in both cost and space

11. 10/23/00MAE Evolution11 Frame Relay Interface (Con’s) ÙCurrent Juniper implementation connects only alike interfaces (i.e. frame-relay-ccc to frame- relay-ccc) ÙCurrent Juniper implementation uses DLCIs from 511 to 1022 for frame-relay-ccc ÙInterworking with existing ATM (or any other) platform requires gateway