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At The

Verizon

A Fortune 20 company, Verizon Communications (NYSE:VZ) is one of the world's leading providers of communications services. Verizon companies are the largest providers of wireline and wireless communications in the United States. Verizon's international presence includes wireline and wireless communications operations and investments, primarily in the Americas and Europe

OTN Interoperability

The Need

Emerging applications require high bandwidths and interconnection with multiple applications on the network Intelligent optical network is critical to many dynamic bandwidth services Standardized interworking between various network interfaces and interoperability among vendors are crucial to provision end-to-end services and establish cost effective OTN evolution path · ILEC, IXC boundaries disappearing Current network is based on multiple technologies and protocols, standard and propriety, making inter-carrier interworking difficult

OTN Interoperability

Expected benefits

Carriers can provision end-to-end dynamic bandwidth services Innovative emerging network technologies can be deployed at faster pace than with a single vendor solutions Cost effective selection of network elements, platforms and multi-vendor solutions Reduced operations overheads-simplified provisioning of new services

OTN Interoperability - Carrier Expectations Interoperable Interfaces Client interface Control interface Management interface

OTN Interoperability - Carrier Expectations Client Interfaces

Efficient and standards-based service adaptation of various client signals into SONET is a critical capability required to make the OTN service-agnostic and to provide interworking between various vendors equipment. A number of standards that include the Generic Framing Procedure (GFP), Virtual Concatenation (VCAT), and the Link Capacity Adjustment Scheme (LCAS) have been developed to facilitate the mapping of client signals into SONET. Standardized mapping will be required to facilitate interoperability between end nodes that perform service adaptation.

OTN Interoperability - Carrier Expectations Control plane interface

Control plane is the key to realizing a self-running and self-governing NG-OTN that features multiple technologies (WXC, ROADM, OXC, MSPP, and C/DWDM) and heterogeneous platforms from multiple vendors A standards-based CP provides an effective mechanism to interconnect diverse CP domains, including the proxy CP for legacy SONET networks, to form a logically integrated CP framework capable of offering the following capabilities on an end-to-end basis:

· · · · ·

Auto discovery and self inventory; Dynamic path provisioning for both coarse- and fine-grain bandwidth applications; Policy-based traffic engineering; Flexible protection and restoration schemes; Seamless interworking with client networks (internal or external) via signaling and routing information exchanges

OTN Interoperability - Carrier Expectations Management interface Plane

Management layer interworking will be needed in an NG-OTN multi-vendor network environment enabled with control plane capabilities. Open standards-based interfaces are a critical factor for enabling management layer interworking. This will also become important when service adaptation techniques over SONET (e.g., GFP, VCAT, LCAS) are deployed in conjunction with control plane capabilities. There are several points of management plane interworking to consider: · Management plane interworking between the network element and the EMS (NE-EMS interface) · Management plane interworking between the EMS and its northbound NMS/OSS (EMS-NMS interface) · Management plane interworking between multiple OSSs (OSSOSS)

OIF Interfaces

UNI-C UNI-C

UNI-N UNI-N E-NNI I-NNI I-NNI E-NNI

E-NNI I-NNI

UNI-N UNI-C

UNI-N UNI-C GFP-f

GFP-f

Verizon & OIF World Interoperability Demo

Control Plane Network Interface Topology

NTT AT&T DT

KDDI

Verizon

CT

TI

Bearer Channel Network Interface Topology

NTT AT&T

DT

KDDI

Verizon

CT

TI

OIF Worldwide Demo - Global Topology

Turin (GFP-F)

UNI

E-NNI

UNI

Fujitsu 4300 CiscoX Fujitsu2 (GFP-F) Avici2x

Cisco 15454 Lucent Metropolis

Fujitsu 4020 (GFP-F) Fujitsu1x

Asia to Europe America to Europe or America to Asia Intra-contential

Verizon Labs

Ciena OLEx (GFP-F) Turin (GFP-F)

Lucent Metropolis

Fujitsu 4500

Cisco2

KDDI Labs

Cisco1 Sycamore NEC 1 Sycamore Ciena OLE

B B A A A

Mahi

Sycamore Ciena OLE2x GFP-F

B

Fujitsu2x

Deutsche Telcom

Tellabs (GFP-F) Adva (GFP-F) Alcatel (GFP-F) Adva (GFP-F)

Tellabs

Ciena

Cisco2 Avici2 Cisco1

Avici1

NEC

NEC

Fujitsu1

NEC 2

Tellabs 6350

Marconi GFP-F

NTT Labs

NTT-4 NTT-1 Avici NTT-3

AT&T Labs

Avici1

Cisco2

Ciena Nortel

GFP-F Lucent (GFP-F)

Cisco1

Ciena

Ciena emulator NTT-5

NTT-2

NEC

NEC emulator

Avici2 Cisco (GFP-F)

Ciena

GFP-F Lucent (GFP-F)

Sycamore

Telecom Italia

Avici2

Avici1 STM-16

China Telecom

STM-1 UNI-C1 Alcatel (GFP-F)

Ciena

UNI-C2

Marconi

GFP-F

Marconi (GFP-F) Siemens (GFP-F)

Vendor Implementations at Verizon Labs

UNI-C

1.0 Rel. 2

Avici SSR Ciena OnLine Edge Cisco 15454 Fujitsu Flashwave 4300

UNI-N

1.0 Rel. 2

Fujitsu Flashwave 4500 Lucent Metropolis WSM Sycamore SN16000 Tellabs 5500 NGX Ciena Core Director Mahi Mi7 Sycamore SN16000 Tellabs 5500 NGX Ciena CoreDirector Ciena OnLine Edge Fujitsu Flashwave 4020 Sycamore SN16000 Turin Traverse 16000

E-NNI

GFP-f

OTN InteroperabilityObservations

Successful establishment of stable end-to-end control plane (UNI, ENNI) interworking over multiple domains · Verizon-AT&T-DT · Verizon-NTT · Verizon-KDDI · Verizon-TI Successful establishment of stable end-to-end control plane (UNI, ENNI) and data plane interworking over multiple domains · Verizon-AT&T · Verizon-AT&T-DT Successful establishment of stable end-to-end service adaptation interworking · Verizon intralab · Verizon-AT&T

OTN Interoperability Summary

OTN interface interoperability is a key enabler to provision emerging end-to-end bandwidth services and NG-OTN deployment Interworking capabilities required at adaptation/ transport, control and management layers Use of standards based protocols and open interfaces are critical to achieve interoperability

OIF World Interoperability Demo provides a critical step in realizing interoperable optical network architecture and facilitating provisioning of end-toend dynamic bandwidth services

Video Streaming Acknowledgement

Verizon along with AT&T and Deutsche Telekom wishes to thank Infovalue for technical support and equipment.

Information

Microsoft PowerPoint - Verizon.ppt

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