SBC Optical TransportTechnologies and Services

2

Agenda

• Fiber Optic Overview

• Point-to-Point Topologies– DS3

– GigaMAN

– DecaMAN

– FibreMAN

– Multi-service Optical Networks (MON) Pt to Pt

• Ring Topologies– SONET

– MON

• Ethernet Optical Networks– Optical Ethernet Metropolitan Area Network (OPT-E-MAN)

3

Metro Network Trends

• Enterprise bandwidth requirements continue to grow exponentially

• Growing number of high-rate data interfaces, according to industry studies* [OC 48 equivalent bandwidth]

• year 2000 = 8000 OC48’s

• year 2005 = 100,000+ OC48’s

– Need to support different protocols:

– Fast Ethernet, Gigabit Ethernet, ESCON, FICON, Fibre Channel, Video, etc. (Future 10 Gbps Ethernet)

• More timely delivery of bandwidth; scalability is critical

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Hig

her

Ser

vice

Rat

es

Future

Future

Growing Range of Services

40 G+40 G+

10 G10 G

1 G1 G

622 622

MM

155 155

MM

100 100

MM

45 M45 M

1.5 M1.5 M

ServiceService Technology

Other...

ISCISC

ESCONESCON

FiberFiberChannelChannel

VideoVideo

HDTVHDTV

IP

OC-12cOC-12c

OC-48cOC-48cGigabit Gigabit EthernetEthernet

Fast Fast EthernetEthernet

DS3DS3

OC-3cOC-3c

ATM

OC-3cOC-3c

OC-12cOC-12c

DS3DS3

TDM

DS3DS3

DS1DS1

Application Space GrowingApplication Space GrowingOptical Interfaces Across Diverse Group of Equipment.Optical Interfaces Across Diverse Group of Equipment.

How to Network These Connections?How to Network These Connections?

ESCONESCONFICONFICONISCISC

MainframeMainframe

OC-3 OC-3 D1D1HDTVHDTV

HQ VideoHQ Video

OC-3OC-3OC-12OC-12OC-48OC-48G EthG EthF EthF Eth

Routers/IP switchRouters/IP switch

ATM SwitchesATM Switches OC-3OC-3OC-12OC-12OC-48OC-48

Cross ConnectsCross Connects

OC-3OC-3OC-12OC-12OC-48OC-48

OC-3OC-3OC-12OC-12OC-48OC-48OC-192OC-192

SONETSONET

Metro Services and Bandwidth

OC-192192

IP

FICONFICON

TDM

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Evolution of Fiber

100 Mbps Stepped Index Multi-mode Fiber

LED

6

Evolution of Fiber

Thin core with continuous light waveguide No room for light to bounce in core Most commonly used mode Currently 8.3 - 9.5 um core size

[millionth of a meter (3.28ft)]1300 nm wavelength [billionth of a meter]

Laser

Single Mode Fiber

7

Evolution of Optical Electronics

Wave Division Multiplexing (WDM) - A technology that allows multiple wavelengths to be multiplexed over a single strand of fiber. Comes in various forms including Dense and Wide depending on the number of wavelengths involved.

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Single Mode Fiber

Dense Wave Division Multiplexing“Kicks it up a notch”

• The cutting edge of fiber optics• Light contains many colors• Each color carries a separate channel

• Example with 64 colors~ 10 Gbps per color~ 640 Gbps per Single Mode Fiber

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Dense Wavelength Division Multiplexing (DWDM) Review

• Magnify fiber capacity 30-fold– Each color wavelength carries independent signal

Fiber

WavelengthConversion

WavelengthConversionMultiplexing Demultiplexing

Current metro DWDM systems typically support 32 wavelengths on a fiber

Protocol 1

Protocol 2

Protocol 3

Protocol 4

Protocol 1

Protocol 2

Protocol 3

Protocol 4

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SBC Data Product Continuum

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Data Transfer Rate

• Metric Code

When used to describe Data Transfer Rate, bits/bytes are calculated as in the metric system:

• For Example:• 1 bit (b) = 0 or 1 = one binary digit

1 kilobit (kb / Kb / K) = 10^3 bits = 1,000 bits 1 Megabit (Mb) = 10^6 bits = 1,000,000 bits 1 Gigabit (Gb) = 10^9 bits = 1,000,000,000 bits1 Terabit (Tb) = 10^12 bits = 1,000,000,000,000 bits1 Petabit (Pb) = 10^15 bits = 1,000,000,000,000,000 bits1 Exabit (Eb) = 10^18 bits = 1,000,000,000,000,000,000 bits1 Zettabit (Zb) = 10^21 bits = 1,000,000,000,000,000,000,000 bits1 Yottabit (Yb) = 10^24 bits = 1,000,000,000,000,000,000,000,000 bits

• 1 Google = 10^100• 1 GooglePlex = 10^[10^100]

Note: Kilobits per second is usually shortened to kbps or Kbps. Although technically speaking, the term kilobit should have a lowercase initial letter, it has become common to capitalize it in abbreviation (e.g. "56 Kbps" or "56K"). The simple "K" might seem ambiguous but, in the context of data transfer, it can be assumed that the

measurement is in bits rather than bytes unless indicated otherwise.

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The Ethernet Evolution-Need for Speed

• LANs are the most important part of data networking.

• Common vehicle for data to pass over LANs has been the Ethernet Protocol.

• 10 Mbps was sufficient in the 90’s

• Progression to Fast Ethernet (100 Mbps)

• Replaced by Gigabit Ethernet (1000 Mbps)

EthernetEthernet Fast EthernetFast Ethernet Gigabit EthernetGigabit Ethernet

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GigaMAN® is…

• GigaMAN Service is used to connect two customer locations at the rate of 1 Gigabit per second. ( OR 1 billion bits per second)

• 22 X the speed of DS3!

• 647 X the speed of DS1!

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DecaMANSM is……

• SBC Optical transport service used to connect two customer locations at the rate of 10 Gigabits per second!

• Private line optical service means low latency and jitter

• 10 X the speed of Gigabit Ethernet! (GigaMAN®)

• 223 X the speed of a DS3!• 6477 X the speed of a DS1!

15

DecaMANSM – GigaMAN® Comparison

DecaMAN is similar to GigaMAN•Deployed over SBC expansive Wave Division Multiplex (WDM) Network & Nortel OM5000

– WDM allows for multiple circuits over single fiber when needed

– Carrier grade network, equipment and personnel: Not All Ethernet Services Are the Same!

•Supports Ethernet standard interfaces (as specified)•Fully managed by SBC 24x7•Similar rate structure (channel terminations & mileage); options for diversity and protection

DecaMAN is different from GigaMAN• At 10 Gbps, DecaMAN is 10 times the capacity of GigaMAN•LAN PHY service will be priced in range similar to 3X GigaMAN (not exactly, may vary)•DecaMAN supports two types of service, LAN PHY and WAN PHY•Most circuits will be deployed without Network Terminal Equipment (NTE) on customer premises

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What is FibreMAN?

• FibreMAN (Fibre Channel Metropolitan Area Network) is based on the Fibre Channel protocol. The FibreMAN product offering is a fiber based point-to-point transport service. This service is used to connect customer provided Fibre Channel switches or routers from one customer location to another at a 1 Gbps or 2 Gbps line rate. The Fibre Channel protocol is an effective transport medium for storage area networks (SANs).

Applications• Corporate information is a key competitive factor, and FibreMAN enhances IT and storage

departments' ability to access and protect it more efficiently. FibreMAN will provide organizations a reliable and scalable way to extend the connectivity between customer sites to enable storage connectivity between servers.

• FibreMAN and GigaMAN® make a great bundle! An ideal candidate are those customers that have existing GigaMAN service to see if they need a Fibre Channel circuit between those same two locations.

• FibreMAN is ideal for these applications:• Fibre Channel is the #1 application for storage:• Network based storage• Storage backup systems and recovery – for improved disaster tolerance solutions• Connectivity within server clusters• Connectivity within storage arrays• Connectivity for access to large databases and data warehouses• Connectivity from internet data centers and/or web hosting data centers to corporate data centers or

other corporate offices• Storage transport for imaging applications

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Multi-Service Optical Network (MON) Value Proposition

• For customers who have requirements for protocol transparent bandwidth for typically more than 3 Gbps between two or more customer sites and/or Central Offices, MON is a fully managed network solution that is flexible and scalable utilizing DWDM technology that delivers high bandwidth services in their native format.

• Unlike private fiber/dark fiber solutions, our service is fully managed by highly trained technicians via a high-quality network and is available in all SBC regions.

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Distance Limitation*Speed Protocol

9.953 GbpsSONET OC-192/c2488.32 MbpsSONET OC-48/c -622.08 MbpsSONET OC-12/c -155.52 MbpsSONET OC-3/c -270 MbpsD1-Video

-1 GbpsGb Ethernet

-100 MbpsFast Ethernet

100 km1.0625 Gbps or 2.125 GbpsFibre Channel

40 km1.0625 GbpsISC

100 km1.0625 Gbps or 2.125 GbpsFICON

40 km8 MbpsETR

43 km200 MbpsESCON

*Approximations: 100 km = ~60 miles

MON Ring Protocols

Target 2Q0410 GigE WAN PHY

-

9.953 Gbps10 GigE LAN PHY

10.0 Gbps

-

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What is SBC’s Ethernet over SONET?

• A layer 1 solution encapsulating Ethernet into a SONET payload

• Ethernet ports on all Dedicated SONET Rings - OC-3 to OC-192 – 100 BaseT – (Standard CAT5, RJ45)– 1000 Base – SX (multi mode)– 1000 Base – LX (single mode)

• Ethernet with a SONET service level agreement

• Point ~to~ Point Service over Dedicated SONET Rings

• Dedicated Ethernet Bandwidth (not a shared service)

• FCC and State Tariffs (Depending on Region)

• Ultra - reliable and ring survivable! 50 ms protection switching

• Ring or Star Topology

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What is OPT-E-MAN?

• A public switched Metro Ethernet product that will provide businesses with flexible bandwidth options from 5 Mbps to 1 Gbps, for Dedicated Internet Access transport, access to NBVPN or Transparent LAN services.

• OPT-E-MAN supports the following configurations: Point to Point, Point to Multi-Point, or Multi-point to Multi-Point - using physical and virtual connections to meet specific business needs.

• SBC/Cisco Alliance offering: OPT-E-MAN leverages the strengths of SBC’s network and Cisco’s equipment offerings.

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OPT-E-MAN Product overview

• Provides Metro area connectivity for customers with multiple locations in a LATA– IntraLATA offering only

• Product is offered by SBC regional Telcos– Providing service out of Telco rather than ASI has proven to be more cost-

effective for the customer and SBC• Offers bandwidth from 5 Mbps to 1 Gbps in 8 choices:

– 5, 10, 20, 50, 100, 250, 500, 1000 Mbps increments– Full 1Gig customers will see less than 1000Mbps due to very small network

management traffic overheads – Phase 2 Tariffs note “company reserves the right to use up to 10% for traffic

management”• OEM Basic looks very much like ATM and Frame Relay • OEM Basic Plus offers a multipoint broadcast domain.• Provides Point to Point, Point to Multipoint, or Multipoint configurations• Cisco Powered Network

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OPT-E-MAN Product overview (continued)

• Native Ethernet frame structure preserved• End-to-end Ethernet perfectly achievable• Uses Ethernet over MPLS (EoMPLS) core network

– Ethernet is used between customer premise and core network• 1 Gbps access/transport

– Fiber-based service only– Not using underlying technology such as SONET or DWDM

• Handoffs to customer are 10/100 Base T or optical 1 Gbps interfaces (1 Gbps LX/LH, SX, and ZX)– Demarcation point is RJ 45 patch panel or fiber patch panel

• 24x7 management and monitoring center– Enhanced Network Operations Center (ENOC) located in Sacramento, California– Provides Single Point of Contact for service

• Tier 1 and Tier 2 support provided by ENOC• Tier 3 support provided by Cisco

– CCNA certified technicians on staff at ENOC

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Applications

• LAN interconnection• Dedicated Internet Access• Network based VPN• Mainframe peering• Private networks• Disaster avoidance• Data imaging and mirroring• VoIP

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OPT-E-MAN Advantages

• Rapid Deployment and Service Provisioning

• Scalable, on-demand bandwidth

• Reduced complexity for customers (No complex skill set required)

• Carrier class features (low latency, rate limiting, recovery and resiliency)

• 24x7 management center - ENOC

• SLAs represent a major differentiator

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2005 Enhancements

• Basic Plus Connection Option – Provides Multi-Point to Multi-Point Connectivity - Available

• Enhanced Edge to Edge Latency and Jitter SLAs - Available

• Introduction of 5Mb CIR Option – Available• CNM – 4Q2005• 50% Tariff Rate Reduction - June 2005• California Teleconnect Fund - Sept. 2005 (DAS)

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Primary Application 1: Transparent LAN Service

• Creates a Layer 2 Virtual Private Network over a shared EoMPLS core

• Glues several LANs together to appear as a single LAN within MAN if using Layer 2 device for connectivity

• Provides for intranet and enterprise site to site communications

• Can be used for extranet communications or connections to partner networks

• Supports multiple Grades of Service

Multi-Tenant Unit

(Cisco 3550)

Fiber TransportFloor 12

Customer Location C

Core EoMPLS network

CO

CustomerLocation A -

Customer Location A

Customer Location B

Cisco 3550

CO

Multi-Tenant Unit

(Cisco 3550)

Fiber TransportFloor 12

Customer Location C

Core EoMPLS network

CO

CustomerLocation A -

Customer Location A

Customer Location B

Cisco 3550

CO

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OPT-E-MAN Network Reference Model

CPE

SBCIS/ISP

AccessLayer

Core LayerAccessLayer

CORE(7609)

CORE(7609)

CORE(7609)

CORE(7609)

CORE(7609)

CORE(7609)

CORE(7609)

NTE(3550)

NTE(3550)

NTE - Future(3750)

NTE(3550)

NTE(3550)

NTE(3550)

NTE (3550)

NTE - Future(3750)

NTE(3550)

NTE(3550)

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

CPE

FR/ATM

InternetCPE

CPE

CPE

MPLSCore

802.3-VLAN Access

(Ethernet Handoff)(Ethernet Handoff)

Future

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OPT-E-MAN Grades of Service

• OPT-E-MAN currently provides 2 Grades of Service (GoS)

– Bronze: suggested for traffic with more latency toleration such as general data traffic, internet access, etc.

– Silver: suggested for more critical applications with low-latency requirements such as VoIP

• Offering GoS represents a key differentiator in the market place

• Classification based on VLAN and on NTE port

• Rate limit set on customer-facing port on the NTE

– Allows SBC to provide Committed Information Rate (CIR)

– Customer should use CPE to shape whenever possible to maintain application performance

– OPT-E-MAN will support frames up to 1546 bytes

Classification Policing

PolicerDrops

SP EDGE

SBC Edge

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OPT-E-MAN Service Level Agreements (SLAs)

• All SLAs are tariffed in the both state and federal tariffs with associated credits– Improved SLA’s are offered through ICB– Takes sample measurements of traffic using SAA probes established by the ENOC

• Network provides an Availability Service Level Agreement (SLA) of 99.95%, per month– Service Outage Credit is offered per location in instance that customer’s service is

disrupted– PDR, Latency and Jitter SLA’s are offered on an end-to-end basis, including local loop!

• Two Grades of Service are available: Bronze and Silver– Bronze SLA:

• Packet Delivery Rate - 99.5% • Latency - 35 ms one way

– Silver for applications requiring minimal loss and low jitter such as Voice over IP • Packet Delivery Rate - 99.9% • Latency - 25 ms one way• Jitter – 15 ms

• OPT-E-MAN Basic offers the following Service Level Objectives (SLOs)– MTTR: 4 hrs. end-to-end, including the local loop, per month– Installation: mutually agreed upon due date established on location by location basis

based on fiber availability and equipment availability

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Service Level Objectives (SLO’s)

• Service Level Agreement (SLA) on network connection only

• Service Level Objectives (SLO’s):

– Network Availability – 99.9%

– Packet Delivery Rate – 99.9%

– Service Outage Credit – a service outage credit will be provided in the event that the service goes down

• Service Outage credits apply

• 10/8640 of MRC for each 5 minutes of outage; maximum of 100% of MRC

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Facility Requirements - Fiber

• Environmental – Secure, dust-free room (MPOE/MDF)

• Pathway – 4” EMT conduit with inner duct and pull rope from property line to MDF/MPOE

• Power/Electrical – 1 Dedicated 15A 110 Outlet

• Wall Mount Option available

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Service Protocols Applications Performance

GigaMAN®

[1 Gbps]

DecaMANSM

[10 Gbps]

GigE

10 Gigabit Ethernet

PTP connections only

Server farm/data center connectivity

LAN extensions – HQ to branch

VoIP / DIA / VPN

SAN and remote data backup

Low latency / jitter

Excellent price per MB

Options for unprotected and protected service

Fully Protected service offers 99.999 SLA

SONET [up to 10 Gbps]

DS1, DS3

OC-3 to 192

GigE, Fast Ethernet

10/100 BaseT

Ring connecting multiple sites or PTP connections

Ethernet, LAN connectivity

Traditional TDM applications (voice, data & video)

Mission critical data networking, Disaster Recovery and Business Continuity Planning

High Performance

Standard for reliability and SLAs

Support for real-time applications

MON [up to 160 Gbps]

OC-3 to OC-192

GigE, Fast Ethernet

ESCONSM, FICONSM **

Fibre Channel

D1 Video

10 Gbps Ethernet** Service marks of IBM corp.

PTP or multiple sites connected in ring

Large data center connections

Main frame computer connectivity

Disaster recovery

Mission critical data networking

Very high volumes of data

Multiple protocols over single platform

Moderate to high (depending upon level of protection selected)

Diverse and expansive choice of native protocols

Fully utilized = low cost per MB

OPT-E-MAN® / CSME[5 Mbps to 1 Gbps]

GigE, 10/100 BaseT Connections to multiple sites in MAN with any to any connectivity

Connect to Dedicated Internet Access (DIA)

Simplify network with more scalable connections

Local access for IP VPN and other value-add services

Bronze & Silver QoS

Strong SLAs for packet delivery

Speed 5M to 1G

SBC PremierSERVSM Optical Networking Solutions Ethernet

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Questions?