MAE

1
MAE Services

• Tom Bechly
• February 11, 2002
• NANOG 24 IX Panel

2
L2 Encapsulation Overhead

• Comparison of Framed payload independent of
  transmission media

Encapsulation Fixed IP Payload 64 bytes IP payload 1500 bytes
Bytes
Ethernet w/o 802.1q 18 78.0 98.8
Ethernet w 802.1q 22 74.4 98.6
RFC2427(routed,SNAP header) 12 84.2 99.2
RFC2427(routed,NLPID protocol) 6 91.4 99.6
RFC2684 (ATM AAL5 SNAP) 12 60.4 88.4
3
Frame Interface

• Efficient utilization of bandwidth
• CPE POS Router Ports are economic and dense
• Service provisioning is straightforward for both
  Customer and MAE facility
• No routing information exchanged between MAE
  facility and CPE
• MAE services technology can change while
  preserving stable service level interface
• Colo-Neutral architecture (i.e., WAN protocol)

4
MAE FE Service

• POS interface with frame relay encapsulation
• PVCs based on Juniper ccc technology
• Best Effort service, No policing or shaping
• Supports ANSI Annex D LMI
• DLCIs from 512 to 1007
• Access speeds are OC3, OC12, and OC48
• Customers provision PVCs via PeerMakerSM
  Provisioner
• Sites have colocation and transport
• MAE ChicagoSM FE Service Facility 10/01
• MAE New YorkSM FE Service Facility 3/02

5
Frame/ATM Interworking
ATM
ATM Switch
Interworking Switch
ATM
Frame Relay
Border Router
Border Router
6
Planned Service Enhancements

• Frame/ATM Interworking
• Deploy Frame Relay interworking switch at
  existing MAE ATM facilities
• ATM PVCs can be mapped to Frame PVCs
• OC3, OC12, and OC48 Frame access to exchange
• Interworked PVCs provisioned via PeerMakerSM
  Provisioner
• Planned for mid 2002