End to End Packet Optical Architecture for Convergent Network Modernization.

Anticipating the future

David Bianchi

davbianc@cisco.com

June 2016

What’s the problem ?

Smooth migration or overnight swap?

Expenses

Revenue

OpEx

CapEx ARPU

How to Pay for it ? Technology

Confluence GMPLS

WSON

SDN

NFV

DWDM

100 Gig

IP/MPLS

MPLS-TP

OTN

SONET/SDH

Service Diversity

IPTV

Business

Ethernet

EPL

EVPL

E-LAN

HSI

DCI L3VPN

Mobile

Backhaul

VoD

FTTx

L2VPN

• Traffic is Growing &

Dynamic

• Transport Capacity Planning

Challenges

• SONET/SDH – EoL

Expenses

Revenue

OpEx

CapEx ARPU

How to Pay for it ? Technology

Confluence GMPLS

WSON

SDN

NFV

DWDM

100 Gig

IP/MPLS

MPLS-TP

OTN

SONET/SDH

Service Diversity

IPTV

Business

Ethernet

EPL

EVPL E-LAN

HSI

DCI L3VPN

Mobile

Backhaul

VoD

FTTx

L2VPN

• Traffic is Growing &

Dynamic

• Transport Capacity

Planning Challenges

• SONET/SDH – EoL

Mobile

Utility

Applications – What did SDH do ?

Leased line

Corporate

Microwave links

STM4 – STM16 SNCP Ring

Landing stations

Railways

E1

E1/E3/STM1

E1/STM1

STM1/STM4

STM16/STM64

E1/E3/STM1

PD

H / S

DH

Ag

gre

gatio

n

ADM

ADM

DXC STM-64 Network

DXC

DXC

ADM

Hands off

DC

BSC /

MSC

/RNC

Packet

Network

POS

FCoS

E1/STM1

Are you willing to give up something in the name of innovation ?

What you can’t give up – no compromise

FCAPS & OAM

Resiliency

Graceful hands

off

Smooth

migration

Transport

friend footprint

PDH Interfaces

SDH Interfaces

Predictability

Reliability

Technology agility

Density / Scalability /

Diversity

Network Management

Standard & known

50ms

Customer preserve

No overnight swap

ETSI Mechanics

E1 / E3

STM-1 to STM-64

Traffic & bandwidth control

Multi-protocol

E1 ports # ?

Convergent to SDN

So what to do ?

How to move away from SDH ?

Circuit Emulation Packet network

Expensive ? Theoretical ? Big Opex investment ? Unsure TCO ?

Present deployments only played with E1 and/or STM1 links

Is PMO on CEM enough ?

E1, E3, STM1 (now on STM4)

Encapsulation

Unassured protection

Now Missing

High bit rate CEM (STM16, STM64)

Bandwidth management

Scalable packet protection

• Four Different Modes:

1. SAToP = Frame agnostic DS1/DS3 (RFC 4553)

2. CESoP = Frame aware NxDS0 (RFC 5086)

3. CEP = SDH Container (VC12, VC4, VC4-Xc) based (RFC 4842)

4. TSoP = Full SDH Frame + TOH (not a Standard!)

• Ingress CEM Node samples TDM Frames for Packetization

• Egress CEM Node collects Packets and reconstructs TDM Frames

TDM Frames

CEM capable

Packet Node

CEM Packets

CEM capable

Packet Node

TDM Frames

PSN

Header PW

Mux Control

Word Parts of TDM

Frame

Pseudowire Identifier

Transport between CEM

Nodes

AIS and RDI Generation

on Remote End Circuit Emulation (CEM)

Eureka!

PW

SDH/CEM Service Provisioning

Cross

Connect

PW CEM

Uplink

Ethernet

Port (NNI)

A Z

Control Plane (RSVP-TE) for bir-directional Tunnel (LSP) Setup

CEM

Uplink

Ethernet

Port (NNI)

Node A Node Z

Path with

Constraints

Cross

Connect

Bi-directional MPLS Tunnel (LSP)

Touch Point

#1

Touch Point

#2

Provisioning

Tool

STS or

VT1.5

STS or

VT1.5

Access

VC Controller

(UNI)

Access

VC Controller

(UNI)

HO … High Order (VC4, VC4-Xc, up to 64)

LO … Low Order (VC12)

Pseudowire (PW)

Mapping Mapping

VC4 or

VC12

VC4 or

VC12

Supported CEM Circuit Types

AUG-64

4x

AUG-16

4x

AUG-4

4x

VC-4-16c VC-4-16c CEM Circuit (CEP)

VC-4-4c VC-4-4c CEM Circuit (CEP)

VC-4 VC-4 CEM Circuit (CEP)

STM-64 Port

AU-4

3x

VC-3

TU

TUG-3

7x

VC-12 3x

VC-12 CEM Circuit (CEP)

E1 CEM Circuit (SAToP) E1

E3 E3 CEM Circuit (SAToP)

STM-16 Port

STM-4 Port

STM-1 Port

CEP … SDH Circuit Emulation over Packet (RFC4842)

SAToP … Structure agnostic TDM over Packet (RFC4553)

E1 CEM Circuit (SAToP) 28x

M13 E1

Hig

h O

rde

r C

ap

acity

(HO

)

Lo

w O

rde

r C

ap

acity

(LO

)

VC-3 CEM Circuit (CEP)

Here you go

Mobile

Utility

Smooth Migration – What does will SDH do ?

Leased line

Corporate

Microwave links

STM4 – STM16

SNCP Ring

Landing stations

Railways

E1

E1/E3/STM1

E1/STM1

STM1/STM4

STM16/STM64

E1/E3/STM1

CE

M C

ap

ab

le N

E

ADM

ADM

CEM Capable

NE

Packet / OTN / DWDM

Network

Full IP/MPLS network

CEM Capable

NE

Convergent platform or

Router

Convergent platform or

Router

Hands off

DC

BSC /

MSC

/RNC

Ethernet

Ethernet

E1/STM1

DWDM