Next Generation Networks Next Generation Networks Emulating Existing Services Over Emulating Existing Services Over All IP networksAll IP networks

Mati Epstein

Sales Director

Mati_e@rad.com

www.rad.com

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Agenda

• Ethernet Access

• Pseudo wire Principle & Solution Overview

• Emulated Services – Implementation options

• Summary

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Ethernet Access

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Ethernet Access: Initial Positioning

• Ethernet access networks were considered for new backbones only• Huge saving in the access is expected: “it’s all about money, not technology”

Traditional (Legacy) Networks

Traditional

Access

Existing Infrastructure

EthernetAccess

New Packet-Switched Networks (PSN)

Future (new) Infrastructure

New Backbone

- GbE (Metro)

- MPLS

- IP

Legacy Backbone

- SDH

- ATM

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Ethernet Access to Legacy and Packet-Switched Networks

• Co-existence of legacy and new packet-switched backbone networks

• Same Ethernet access to SDH and ATM as well as to PSN• “Bottom-Up” approach to Ethernet access deployment

New Backbone

- GbE

- MPLS

- IP

Legacy Backbone

- SDH

- ATM

EthernetAccess

Traditional

Access

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Evolution of Ethernet Service Delivery

NTU LegacyAccess

TDM, FR, ATM

Legacy CoreATM, SDH

PSN CoreEthernet, IP, MPLS

PSN CoreEthernet, IP, MPLS

NTU Legacy/EthernetAccess

TDM, FR, ATMEthernet

NTU PSN Access

Ethernet, MPLS

• Ethernet service (user) interface at Network Termination Unit (NTU)

• PSN (packet Switched Network) core, and mix of Ethernet and Legacy in the access

• “All PSN” network PSN, Access and Core

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Intelligent Demarcation Concept• Clear demarcation

• Truck roll is not affordable in low-cost Ethernet services

• Extensive monitoring and diagnostics capabilities including:• Loopback

• Ping and Trace Route

• Cable tester

• Traffic management (QoS) starting at customer premises• Per service traffic classification and prioritization

• Priority marking for ‘port based service’

• Traffic policing

• Security: Access control list, RADIUS, SSL, SSH

• Remote manageability

Intelligent Demarcation is essential for minimizing operational costs

• Dying gasp

• Fault propagation

• Extensive statistics

PE

Provider’s Node

PE

Provider’s Node Customer Premises

CPENTU

End-to-end Service control, SLA monitoring and diagnostics

Customer PremisesCPE NTU

Packet SwitchedNetwork

Eth/IP/MPLS

NNI NNI UNIUNI

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Ethernet Network Termination Unit (E-NTU) - ETX-102/202

• Carriers owned, customer located device

• Allows for Ethernet in the local loop

• Typically applications:• CLE for metro networks

• CLE for NG-SDH/Sonet networks using Ethernet access to connect to the NG-ADM

Packet Switched,SDH/SONET

or ATMNetwork

100Base Fx

EdgeDevice

EdgeDevice

Management

100Base Fx

GbE

Customer Premises

CPE

10/100BaseT

Customer Premises

10/100BaseT

CPE

Customer Premises

CPE10/100BaseT

1000Sx

Customer Premises

CPE10/100BaseT1000Sx

ETX-102

ETX-102

ETX-202

ETX-202

GbE

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Egate Gateways and RICs Innovative Channelized Ethernet over TDM

• Egate is a Gateway connecting TDM and Packet networks

• Egate-100 Connects up to 126 remote LANs over FE1/FT1, E1/T1 and n*E1/T1

• Egate-20 connects up to 248 LANs over FE1/FT1 and E1/T1

• Reduces equipment costs by 70% and considerably reduces maintenance costs versus Router and Cross Connect alternatives

• Complete solution with RADs RIC, FCD-x and ASMi-52 lines

POP/CO

8 x E1FE

Egate-20

SDH/SONET

DACS

POP

n x E1

Ethernet

RICi-E1/T1E1/FE1

Egate-100

STM-1/OC-3GbE

PSNn x E1

n x E1

Ethernet

RICi-4E1

RICi-8E1

Wimax

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Pseudo wire Principle & Solution Overview

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Emulated Services: The Challenges

• Maintain legacy services

• Optimization of BW usage over DSL access link

• Synchronization and clock distribution over a Packet Network

• Support legacy services while keeping IP DSLAM cost low

• Reduce DSLAM complexity to the lowest possible level

• Same DSL card for different emulated services.

• Multiservice offering at customer premises (multiservice over single access link as an example : FR +

LAN or FR + Leased Line)

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Pseudo wire – The ConceptPseudo wire – The Concept

The synchronous bit stream is chopped into packets

Legacy Serviceframe

Legacy serviceframe

Ethernet/ MPLS/ IP Packets

Ethernet/IP

Ethernet/ MPLS/ IP Packets

MPLS/IP headers are added

Packets are forwarded to destination over the IP network

At destination, the original bit stream is reconstructed by removing MPLS/ IP headers, concatenating the packets, and regenerating the clock

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Pseudo wire Technology - Pseudo wire Technology - StandardsStandards

• RAD complies with the following TDMoIP Standards:• IETF - ietf-pwe3-tdmoip

• ITU - Y.1413 – TDMoIP section

• MFA – IA 4.0

• MEF – CESoE (Q2/06)

• Other pseudo wire standards• IETF - ietf-pwe3-CESoPSN

• IETF - ietf-pwe3-SAToP

• ITU - Y.1413 – CESoPSN and SAToP sections

• RAD is committed to Pseudo wire technology and will support most pseudo wire standards by 2006.

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Migration to IP/MPLS Networks: Maintaining Legacy Services

• Maintaining existing services over new IP infrastructure• IP DSLAM as multiservice access node especially for legacy services • There are several options for Service Emulation :

• Edge-Edge• CPE-CPE

CPE Access

Legacy Network

Access CPEPOTS/ISDNLeased Lines

X.25/FR/ATM

POTS/ISDNLeased LinesX.25/FR/ATM

IP/MPLS Network

Edge-to-Edge Service Emulation

CLEAccess Access

CLE

CLE-to-CLE Service Emulation

POTS/ISDNLeased Lines

X.25/FR/ATM

POTS/ISDNLeased LinesX.25/FR/ATM

CPE CPE

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Emulated Services: Implementation Options

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E1 Trunking over MPLSfor Cellular and business connectivity

• Provides Time Warner Cable customers with a migration path to Metro Ethernet services by eliminating the need for separate, costly T1/T3 circuits

• Cost-effective, low maintenance, compact and scalable solution

• Large positive impact on Time Warner Cable revenue forecast for the coming years

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DSL with TDMoIP for Cellular backhauling and PABX connectivity

Key Customers• Carriers with PSN core• DSLAM install base with Ethernet uplink

Key Customers• Carriers with PSN core• DSLAM install base with Ethernet uplink

Key Application• Leased lines over IP networks• Cellular backhaul

Key Application• Leased lines over IP networks• Cellular backhaul

Key Features• 2 or 4 wires SHDSL• Supports CESoPSN or TDMoIP (Over IP, Ethernet or MPLS)• Serial data or E1 CES• NTR/Adaptive clock mode• E1 ATM is planned for October 2005• Structured or unstructure modes• Management via SNMP,Telnet or terminal

Key Features• 2 or 4 wires SHDSL• Supports CESoPSN or TDMoIP (Over IP, Ethernet or MPLS)• Serial data or E1 CES• NTR/Adaptive clock mode• E1 ATM is planned for October 2005• Structured or unstructure modes• Management via SNMP,Telnet or terminal

Site A

LA-110

PBXBTS/NodeB

E1

PSNCore

Site B

LA-110

PBXBTS/NodeB

E1

2G/3G BSC/RNC

PSTN

GMUX

GbE N x E1

TDM

SHDSL/VDSL/F.O.

MSAG MSAG

SHDSL/VDSL/F.O.

DSLDSL

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Seamless Ethernet Services over PSN and TDM Networks

“Most Impressive path with RAD fiber CPE.. and RAD Ethernet over 8E1” MEF multi-vendor Carrier Ethernet interoperability test, Berlin, 2005

… And what about voice

legacy?

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nE1 IMASTM-1ATM

2G/3G Co-location over PSN

Ethernet

ACE-3x00 3G RNC

Ethernet

ACE-3x00nE1 IMA/UNI

STM1

3G Node B

Packet SwitchedNetwork

• Aggregation and tunneling (pseudo-wire) of both TDM traffic (2G with TDMoIP/CESoPSN) and ATM traffic (3G with ATMoPSN) over the same packet transport network

• Transparent backhaul of Abis and lub over the PSN

• Encapsulation of ATM cells over PSN according to:

draft-ietf-pwe3-atm-encap

2G BTS

E1 TDM 2G BSC

nE1TDM

Ethernet

ACE 3x00Node B

nE1 IMA/UNI STM1

PSNPSN

Cellular backhaul over PSNAggregation solution

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Packet SwitchedNetwork

Eth/IP/MPLS

Ethernet over any network – Combined PSN and NG SDH Networks

EdgeDeviceUTP

GE/FE

FOGE/FE

Customer PremisesEdge Device

GE/FE

FOGE/FE

ETX CPE

Ethernet

E1PBX

LANIPmux-11/14

Customer Premises

GE

Gmux-2000

FE

STM-1E1/E3

Customer PremisesSDH/SonetNetwork

ADM ADM

Egate

GE/FE

STM-1/E1

E1/T1RIC

RIC

10/100BaseT

n x E1/T1

Customer Premises

10/100BaseT

NG ADM

CPEETXGE

NG ADM

FECPE ETX

FE

GE/FE

IP-DSLAM

Customer Premises

Customer Premises

ADM

TDMoIP Voice to the PSTN Network

CPE ETX

Customer Premises

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Summary

• While access and core technologies are migrating to packet based networks, most of carriers revenues are generated by legacy TDM services

• Pseudo Wires with TDMoIP products enable this migration to be smooth and ensures continued TDM services revenues.

• RAD has a complete pseudo wire solution to enable legacy services for Cellular Backhaul, PSTN access over packet and Enterprise Toll Bypass.

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www.rad.com

thank you

http://www.rad.com