This document summarizes a Cisco Knowledge Network presentation on the network after SONET. It introduces the speakers and topic, which is how networks have evolved beyond the traditional SONET architecture. The presentation traces the history of network technologies from 2000 to 2002, starting with SONET and the introduction of Ethernet. It notes the challenges that arose with mapping Ethernet to SONET, such as rigid mapping and inefficient use of bandwidth. The presentation aims to explore new network architectures to address these challenges.
5. How many networks have been built to
deliver the services?
TDM = SONET
Ethernet in Last mile = Ethernet over Cu
Ethernet/VPLS = Switching
Wavelengths = DWDM
IPVPN = Routing
Is this Fast?
How many boxes to make this work?
How about the OpEx? 5
6. Metro Key
Year Service Speed Features
Technology
Voice T1: 1.5Mb A-Z Provisioning
SONET Small Chassis
2000 Dial-Up T3: 45Mb MSPP Easy to Use GUI
50ms Protection
Business
3/1/0
DCS
Business 3/3
OC-12
OC-48 SONET DCS
48 x T3
OC-n
Business 1440 x T1 (via M13) Utility
34K x DS-0
Legacy
T1
Business
Router
Business
6
6
7. Metro Key
Year Service Speed Features
Technology
Voice T1: 1.5Mb A-Z Provisioning
SONET Small Chassis
2002 Dial-Up T3: 45Mb MSPP Easy to Use GUI
“Ethernet Internet FE: 100M 4 x OC-192
Arrives” GE: 1000M EPL and L2
EthernetoSONET
Business
3/1/0
DCS
Business
Challenges
OC-192 SONET OC-12
3/3
DCS
Rigid SONET mapping to Ethernet
192 x T3
Business Mapping GigE to SONET 20% Inefficient
5760 x T1 (via M13)
OC-n Utility
10Gb SONET Limit per FE
100 x Ring
8 x GbE Legacy
GbE
Business
Router
Business
7
7