Cisco - RBOC, PTT Architecture

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© 1999, Cisco Systems, Inc.

RBOC Architectures (Regional Bell Operating Companies) Session 1504 1504 1144_06F9_c1_x

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What Is a Regional Bell Operating Company?

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And Then There Were Four?

• SBC: PacBell, Ameritech, SNET • Bell Atlantic: NYNEX, GTE • US West: Global Crossing/Qwest? • Bell South

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Regulated vs. Unregulated

Unregulated Regulated ISP CLEC 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Inter-LATA communications

LATA 1

LATA 2

IXC LATA 1

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LATA 2

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“Enhanced Services” Restriction

Layer 3

IP

Layer 2

Frame/ ATM

Layer 1

Leased Line

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© 1999, Cisco Systems, Inc.

Service Offerings Transport ISPs

Leased Line IXC Frame Relay ATM DSL Wholesale Dial Access Wholesale Dedicated Access

Voice Local service CLASS/Centrex

RBOC Network

“Dial” Access Consumer

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ISP-Tier1

TDM Access

Telecommuter Small/Medium Business

VPN Intranet VPN Extranet VPN

DSL Access

ITSPs

ISP-Tier2/3

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Cable MSO

CO Facilities

Enterprise

CLEC

IXC/ Greenfield IXC

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Functional Components Access Method Cable

Twisted Pair

Switched Circuit

Cable Access Network

DSL Access Network

Dial Access Network

Dedicated TDM

Services Transport Internet Voice

IP Access Network

IP+ATM Access Network

VPN

Backbone Network 1504 1144_06F9_c1_x

IP OPTIC

IP TDM

IP+ATM

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© 1999, Cisco Systems, Inc.

Building the New World Backbone Network Optical Internet Working OC-192 SONET/SDH Multiplexing

• Data used to consume a fraction of a SONET/SDH ring • Now data interfaces are as big or bigger than SONET/SDH ring speeds

OC-48 OC-12 OC-3 96

97 Old World Data Rides Transmission

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• No longer economically viable to run data over SONET/SDH rings New World Data Drives Transmission

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No Longer a Question of If… Private Line FR/ATM PSTN/VPNs IP Service Signaling and Control Networks

New World Data Optimization

You Are Here

…to optimize around data but:

• When? • How? 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Network Architectures ISP Transport

IXC

Voice

IP+ATM Network

VPN

ITSP

CO Facilities

DSLAM

Dial PSTN

Frame/ATM

Copper

TDM

DSL access

Frame Relay/ATM/ Leased line access

Class 5

Analog/ISDN access 1504 1144_06F9_c1_x

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Network Operations Sessions: 1505 1204

Service-Level Agreements Customer Data

Product and Services Data Service Management Performance Data

1209

Service Management Layer Orders

Bills Failure to Meet SLA Rebate

Faults Network Management Layer Element Management Layer Orders

Faults

Network Usage Data

DCN Network Elements 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Virtual Network Model

SW

Voice Network (SS7/BICI)

SW

IP Network (Tag/MPLS) Data Network (FR/ATM w/ PNNI)

SW

HW/ FW Physical Network 1504 1144_06F9_c1_x

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Leased Line Transport Service Architecture CPE

POP

DS1

CORE

DS1/AAL1

TDM

ATM

DS1

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© 1999, Cisco Systems, Inc.

Circuit Emulation Services Leased Line Replacement CES Interworking Function PBX TDM Mux

ATM Interfaces (T1/E1 or T3/E3)

CES Interworking Function

PBX

ATM CBR VCCs MGX 8800

ATM Network

Video Server

MGX 8800

TDM Mux

• Replace leased lines for enabling video applications and interconnecting TDM Muxes, PBX’s • Leverage ATM Infrastructure • Structured and unstructured CBR data transfer 1504 1144_06F9_c1_x

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Frame Relay Transport Architecture CPE

POP

CORE

Frame Relay

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ATM

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© 1999, Cisco Systems, Inc.

Frame Relay-to-ATM Interworking Migration to Broadband Services

Network Interworking

FR-CPE

FR UNI

FR-CPE FR UNI

ATM

Frame Relay Network

BPX 8600 Network

BPX 8600 Network

FR NNI

Service Interworking LMI

Frame Relay Network

FR UNI

FR-CPE

Frame Relay Network

FR-CPE

FR NNI

Q.933 Bidirectional

FR UNI

ATM Network AIS/RDI OAM Cells AIS/RDI OAM Cells

FR CPE

ILMI

ATM CPE

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ATM Transport Architecture CPE

POP

ATM

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CORE

ATM

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© 1999, Cisco Systems, Inc.

WAN Sessions • Session #102 (Level 2)- Deploying WAN Technologies • Session #103 (Level 3)- Advanced WAN Concepts and Troubleshooting • Session #1201 (Product)- IGX/BPX/MGX Product Update • Session #1208 (Product)- 26xx/36xx/3810 Product Update • 310 - Deploying Traffic Management (QOS) Technology 1504 1144_06F9_c1_x

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DSL Transport Architecture CPE

POP

CORE

ATM

Copper

203 Introduction to xDSL Technology 207 Deploying xDSL 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Wholesale Dedicated Access Service Architecture CPE

POP UCP

CORE

GATEWAY

SSG

Aggregation

ISP FRAME/ xDSL

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Wholesale Dial Access Service Architecture CPE

POP Dial AAA Access

CORE

GATEWAY

DNS DHCP

ISP

IP+ATM

ISDN POTS Cat6x00 AS5x00

201 Introduction to Dial Services 205 Deploying Analog/Digital Dial Services 1205 Dial Products and Product Updates 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Internet Dial Redirect POTS or ISDN Access Lines Interoffice Trunks

EO Switch

Blocking Data Trunk

Tandem Switch Network

EO Switch

EO EO Switch

Switch EO Switch

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Data Network

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Internet Service Provider

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Tandem Voice Architecture CORE EO

EO VSC

VSC

SS7

PSTN

SS7 LEC Tandem

V

V Gateway

Gateway

LEC Tandem

PSTN

Sessions: 400-series, 1506, 1203 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

ATM Voice Virtual Tandem Signaling Backhaul Bearer Control

STP

IN, LNP Directory, Etc.

Intra-Virtual Switch Signaling

Virtual Switch Controller VSC

VSC

EO

EO

ATM Virtual Tandem 1504 1144_06F9_c1_x

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Overlay vs. Built-in

VPN A A VPN VPN B B VPN VPN VPN C C

VPN VPN C C VPN VPN B B intranet

VPN A VPN A

extranet

VPN B VPN C

VPN C VPN A

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VPN B

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© 1999, Cisco Systems, Inc.

Access Vpn Service Architecture CPE

POP

CORE

DNS DHCP

AAA

AS5x00

GSR

IP/MPLS

ISDN POTS

GATEWAY

Intranet Home gateway

AS5x00

Catalst 5x00

GSR

305 - Introduction to VPNs and Tunnelling Technology

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Intranet Vpn Service Architecture CPE

POP

CORE

CPE

GSR

IP/MPLS

Dedicated access Layer 2 Interconnect

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Intranet

GSR

Deploying VPNs and Tunneling Technology

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© 1999, Cisco Systems, Inc.

Extranet Vpn Service Architecture CPE

POP

CORE

CPE

GSR

IP/MPLS

Dedicated access Layer 2 Interconnect

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Intranet

GSR

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Intra-LATA Order Language Config Language

ISP2

ISP1

Comp A

Comp B

Optical/ATM Backbone

Cable Headend

VDSL ATM

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ADSL

IDSL/S DSL

Frame ATM FUNI

Cable D/C

Switch

ISDN

POTS

Wireless

D/C

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© 1999, Cisco Systems, Inc.

MPLS enabled POP Broadband access persistent connection aDSL (cell or frame) Cable

Direct Access

TDM Mux n

Leased Lines X.25 Frame Relay ATM Managed CPE

LER

LSR

LER

LSR

LER

Backbone (OC-3, OC-12, 0C-48) MPLS POS, TAG/ATM

Dial Up PSTN ISDN GSM

LER

UCP DNS, AAA Mgmnt

Content and Caches 1504 1144_06F9_c1_x

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IP/MPLS and ATM GSR GSR

IP/MPLS

GSR

Optical/ATM Core

GSR

ATM Access

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© 1999, Cisco Systems, Inc.

MPLS Across Non-MPLS ATM Networks Labeled cells transported in Virtual Path MPLS Network ATM

ATM SVCs created as needed; VCIs mapped to Labels 1504 1144_06F9_c1_x

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Migration: 1. Pre-MPLS

Pure routed part of network

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Routers around ATM PVC cloud

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Migration: 2. Partial Upgrade Many routers software upgradable to MPLS

Not all routers need to run MPLS 1504 1144_06F9_c1_x

Some switches upgraded to MPLS

VP tunnels through non-MPLS switching ATM switches

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Migration: 3. Full MPLS Upgrade remaining switches

Ordinary IP can still be used Native ATM connections can still be used 1504 1144_06F9_c1_x

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© 1999, Cisco Systems, Inc.

Please Complete Your Evaluation Form Session 1504

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