MAE Evolution Tom Bechly Internet Architecture and Technology MAE ATM - Distributed Exchange Point MAE-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
New Sites have ATM switches, co-location, and transport Benefits of distributing MAE Increased port, circuit, and co-location capacity Improved resilience and diverse customer connections MAE-ATM West additional site planned for 2001 10/23/00 MAE Evolution 2 MAE ATM Guaranteed Service Current 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 10/23/00 MAE Evolution 3 MAE ATM Best Effort Service New 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 10/23/00 MAE Evolution 4 MAE-FDDI East Status MAE-FDDI East is being de-commissioned MAE-FDDI East at 8100 Boone Blvd and at 1919
Gallows Road will be turned down on 2/28/01 There is a FAQ on WWW.MAE.NET that covers the MAE East FDDI to ATM migration 10/23/00 MAE Evolution 5 MAE-FDDI West Status MAE-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 DEC GigaSwitches at MAE West were powered
down on 10/12 There are no plans to de-commission MAE-FDDI West, at this time No new customers will be added 10/23/00 MAE Evolution 6 Service Level View ISP-AAA ISP-ZZZ MAE
ISP-BBB ISP-XXX 10/23/00 MAE Evolution 7 Service Goals Public Point of Presence for exchanging traffic Equal and neutral access to exchange Fair in that same rules and policies apply to all Stable Service Interface
Protect shared resources Enable users to manage Peering relationships ISP-XXX wants to peer with all ISP-ZZZ only peers with ISP-AAA Exchange point leverages advanced technology 10/23/00 MAE Evolution 8 MAE Platform Evolution Requirement for capacity in both bandwidth and port speeds will exceed current platform Current architecture wont scale indefinitely Future requirement for OC48 access
Currently 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 10/23/00 MAE Evolution 9 Frame Relay Interface (Pros) Service provisioning is straightforward for both Customer and MAE No routing information exchanged between MAE and CPE
MAE technology can change while preserving stable service level interface Architecture can be extended to provide multiservice interface with no ATM cell tax Customer CPE saving in both cost and space 10/23/00 MAE Evolution 10 Frame Relay Interface (Cons) Current Juniper implementation connects only alike interfaces (i.e. frame-relay-ccc to framerelay-ccc) Current Juniper implementation uses DLCIs from 511 to 1022 for frame-relay-ccc Interworking with existing ATM (or any other) platform requires gateway
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