Cisco PONC 2015

Ramesh Pillutla

Product Line Manager, OSTG

March 2015

• Aging SDH Infrastructure

• Packet Traffic is Growing

• OTN is good for Private Line, No Statistical Multiplexing

• SDH Evolution requires Legacy to be accomodated

• Co-Existence of Legacy SDH/PDH, OTN & GreenField Packet Services

• Transport Operational Model – Resiliency, OAM&P

• Next-Gen Transport requires Programmability, Scalability

NCS 4k Use Case Evolution – Not Revolution !

Touch-less ROADM/DWDM underpinning TDM (SONET/PDH) Circuit Emulation, Packet and OTN

with Agnostic switching to enable Network Convergence

Cost Drivers

Packet Optical architecture can save from 56% to 71%

Reliant on static provisioning and legacy services

Ethernet/IP Cost Structure

0%

20%

40%

60%

80%

100%

Point to Point Point to Multi-point

Mult-point toMulti-point

SONET/SDH

Packet

Is the transition going to

provide savings ?

N x GigE

< 10% Utilization

Metro

SDH ADM

(MSPP)

SDH ADM

(MSPP)

SDH Large

Aggregation

(MSPP) GigE Access

$1 per

Access port

$3 per

MSPP

DWDM Cost per

Wavelength $10

Per lambda Large Aggregator

$100 Under-utilized

Router ports

$$$$

SDH/SDH Cost Propagation

SP CO SDH Migration Voice

Switch

ULH Optical

Transport

Trib

Shelf

E1/E3 IP

Networks

Legacy

PSTN

IP

Router

DCS

Access &

Agg Metro

Core

STMn

STM64 STM-n

Ethernet

STMn POS

ChSTM4/Ch

STM16

STMn

ATM/FR

(CBX)

STMn

E1/E3

ADM E1/E3

Mux ADM ADM ADM

DCS

ULH Optical

Transport

E1/E3 IP

Networks

Legacy

PSTN

IP

Router Access

& Agg Metro

Core

STMn

Ethernet

STMn POS

ChSTM4/Ch

STM16

STMn

ATM/FR

(CBX) NCS

42xx

NCS

42xx

Local E1/E3

NCS

4009, 4016

10 Gig/

100 Gig

N x 10 Gig/

100 Gig

E1/E3

E1/E3

ODU Statistical Multiplexing

SDH

SDH

10 GigE

100 Gig

DWDM

Coherent

N x 10 Gig OTN over DWDM

ODUFlex

ODU1

ODU-2/2e

E1/E3/STS

ODUj/ ODUk

GigE

ODU-2/2e

ODUj/

ODUk

Under-utilized GigE/10 GigE Under-utilized 100 GigE

OTN Only provides no Statistical Multiplexing

POS

Private Line Private Line Private Line Private Line

SDH

SDH

10 GigE

100 Gig

DWDM

Coherent

N x 10/100 Gig Stat-

Muxed OTN over

DWDM

ODU-2/2e E1/E3/STS

ODUj/ODUk

GigE

ODUj/ODUk

Tunably Utilized GigE/10 GigE Tunably Utilized 100 GigE

Packet

Processing

Packet

Processing

ODUj/

ODUk

L2/ MPLS

L2/ MPLS

Statistical Multiplexing with L2/MPLS

POS

Private Line Private Line

Private Line Private Line

SDH Mobile Backhaul Migration

• Legacy 2G SDH Switches

• E1, E3, STM1, STM4 Access

• STM16/STM64 Transport

• DWDM Wavelength Services

E1

E3

STM1

STM4

2G

CellSite

2 x

STM64

N x STMn

Large

SDH

Agg

N x

STM64

OTN

Switch

SDH ADM

• Accommodates 2G LTE

• Recoverable Circuit Emulation

• STM16, STM64 N x 10 GigE

• Unlock Value from DWDM

• Combine OTN Switch/SDH Agg

into 1 NE

E1

E3

STM1

STM4

2G 4G,

LTE

Migration

N x 10 Gig

(MPLS Transport)

NCS 4009/16

OTN Switch

10 Gig Aggregation

100 Gig

NCS 42xx

DWDM

Transport

Circuit Emulated TDM Pseudowires

ATM Switch Migration

• Legacy ATM Switches

• Frame Relay Applications

• E1, E3, STM1, STM4 Access

• STM16/STM64 Transport

• Leased Dark Fiber

• DWDM Wavelength Services

E1

E3

STM1

STM4

Legacy

ATM Switches

2 x

STM64

N x STM16

Large

SDH

Agg

N x

STM64

OTN

Switch

SDH ADM

• Accommodates ATM/ FR

Transition to Ethernet

• Recoverable Circuit Emulation

• STM16, STM64 N x 10 GigE

• Unlock Value from Leased

Transport

• Combine OTN Switch/SDH Agg

into 1 NE Change port to Ethernet

When ATM Switches are

replaced

E1

E3

STM1

STM4

Legacy

ATM Switches

N x 10 Gig

(FlexLSP)

NCS 4009/16

OTN Switch

10 Gig Aggregation

100 Gig

NCS 42xx

Leased

Transport

Circuit Emulated TDM Pseudowires

Utility Use Case

• SDH used for Teleprotection

• SCADA aggregated to E1

• E1 Circuit Emulated over

MPLS-xx/Carrier Ethernet

interface

• Latency/jitter/symmetry for

Teleprotection between Tele-

protection routers Latency: less than 5ms (RTT less

than 10ms)

Jitter: less then 0.5ms.

Symmetric traffic: |A to B| - |B to A| <

1ms

• Restoration after single

link/node failure less than

50ms

• Frequency and time delivered

to TPR sites (1588v2)

Sub-Station

Native SDH/SDH, Ethernet-over-SDH

E1,E3

IP/MPL

S

Tele-Protection

& SCADA

Voice, Video,

Data

Sub-Station

Radio

Sub-Station

E1/E3

SDH ADM

SDH ADM

SDH ADM

Large

SDH

Agg

E1

E3

Ethernet

IP/MPL

S

Scada

Controller

IP/MPL

S

SDH

Sub-Station

FlexLSP, Carrier Ethernet E1, E3

IP/MPLS

Tele-Protection

& SCADA

Voice, Video,

Data

Sub-Station

Radio

Sub-Station

IP/MPLS

NCS 42xx

NCS 42xx

NCS 42xx

NCS

4009/16

NCS

4009/16

E1 CEM

E3 CEM

Ethernet

IP/MPL

S

Scada

Controller

E1, E3

NCS

42xx

NCS

Solution

Packet Optical vs Routing

Packet

Optical

• IPv4 / IPv6 / MPLS

Forwarding

• Bridging

• L2VPN

(VPWS/VPLS)

• OTN/DWDM

• Legacy TDM

• Transport Opex

Model

• Converged

Transport Edge

• Carrier Class

Router

• MPLS, Bridging

• Subscriber

Management

(BNG)

• Full L3VPN

Provider Edge

• Full Internet Table

Routing

• Router Opex

Model

• Service Edge

• L3 Scale

Full

Spectrum

Routing at

Scale

BGP

L3VPN

BNG

Multicast

L2VPN

ISIS

OSPF

SR-TE

QoS

Y.1731

CFM

EFM

OTN

DWDM

Packet

Optical

Limited

L3 Scale

MPLS

IPv6

NCS Convergence NCS 4k Converged Transport Edge – Address Converged POTS Applications,

Enable Cloud Computing Infrastructure, Virtualized Service Layer, Accommodate

Legacy, Migrate SONET/SDH, MultiLayer Management

SDN Enabled

IP/MPLS

MPLS-TP Virtualization

Carrier Ethernet

DWDM

Packet

SDH SDH

OTN Convergence

Some Feature Overlap at L2/L3

Packet Optical does not require

Router scale

Packet Optical

NCS 4000v

NCS 4009

NCS 4016

Full L0/L1

Strong

Carrier

Class, Mgmt

Routing

ASR 901

ASR 903

ASR 9001

ASR 9000v

Strong L2/L3

Depth/Breadth

CLI

MPLS Transport Characteristic MPLS-TP FlexLSP IP/MPLS

Ethernet

Eline (10GE)

Eline (GE)

Eline (Sub GE/10GE)

E-Tree

E-LAN

Legacy Transport

F/R

ATM

TDM

IP Services

L3VPN

L3 Unicast

L3 Multicast

Content

General

Traffic Engineering EMS-Driven

50ms restoration (1:1 LSP Protection)

Scalability

Multiplexing Technology Statistical Statistical Statistical

UNI processing Rich Rich Rich

Granularity Variable Variable Variable

Programmable (SDN Enablement)

EMS-Driven

RSVP-TE Extensions

RSVP-TE Extensions

MPLS-TP • OAM

• Forwarding

• Protection

2011

FlexLSP • TP OAM

• Forwarding

• Protection

• SDN Enablement

2013

Standard IETF MPLS

RFC’s

Programmable Ethernet Transport

Orchestration

Infrastructure

Applications

Unified MPLS / FlexLSP Telco Cloud

NfV (Virtualisation) Segment Routing

Open APIs

nLight: IP Optical Integration

Open APIs

Programmable

Ethernet

Transport

Multidegree

CDC

ROADM

• Predictable, Deterministic

Transport-Centric (1:1 LSP

Redundancy)

• Resiliency – Sub-50 msec

• Rich OAM

Fault Propagation,

Connectivity Verification

(MPLS-TP)

• Statistical Multiplexing

• Programmable

(RSVP-TE Extensions)

• MPLS Scalability

FlexLSP is evolution of MPLS-TP to accommodate Programmability of the

MPLS Transport function and full compatibility with existing MPLS

implementations

Legacy Evolution Circuit Emulation

E1

E3

STMn

HO Fabric

LO Fabric

STMn

SDH ADM

E1

E3

STMn

NCS

OTN

MPLS

Agnostic

Fabric

100 Gig

Coherent

Per-ODU Statistical

Multiplexing

100 Gig Coherent

L2/MPLS

SONET/SDH

OTN

OTN

Fabric

OTN Switch

L2/MPLS

OTU-1

OTU-2

OTU-4

MPLS

NNI GigE

10 GigE

MPLS

Fabric

MPLS Label

Switched Path

(LSP)

PW

E3

En

ca

p

DS1 Service

E1 Service

FlexLSP

Generic Associated Channel (G-Ach)

for Inband MPLS OAM

Pseudowire Muxing

Function

Circuit Emulation

1588v2

FlexLSP

Over

ODU over

DWDM

Network Identifier

MPLS Label

MPLS Label

Switched Path

(LSP)

PW

E3

Encap

Ethernet

Service

802.1

Q, .1

ad

EV

C

G-Ach G-Ach

STS-1/Nc

SPE

VC-3/4 SPE

VT1.5 SPE

VC-11/12 DS1 Service

E1 Service

STS-1/Nc

SPE

VC-3/4 SPE

802.1

Q

802.1

ad

Ethernet

Service

SDH Ethernet Mapping

Network Identifier

STS/VC number

SONET

SDH

over

DWDM

GF

P-F

/ HD

LC

E1/E3 approximately

Equivalent to Pseudowire

STS-N/VC-3/4 approximates

an LSP

SA

ToP

CE

oP

Legacy Accomodation

Circuit Emulation Use-Cases

E1 E1 1 E1

E1 E3

2 E1

E1

E3 E3

3 E1

E3 E3 E1

4

E1

E1

ChSTM1/

ChSTM4

ChSTM1

/ChSTM

4

ChSTM1/C

hSTM4 ChSTM1/

ChSTM4

E3 E3 5 E3

E3 ChSTM1/

ChSTM4

6 E3

E3

7

E3

E3

ChSTM1/

ChSTM4

ChSTM1/

ChSTM4

ChSTM1/

ChSTM4

ChSTM1/Ch

STM4

Circuit Emulation

Technology

Applicable Standard TDM Service

Support

Encapsulation Options Emulated Services Timing Requirements

SAToP RFC 4553 Unframed IP/UDP, L2TPv3 and

MPLS

Low Order (E1/E1/E3/E3) None

CESoP RFC 5086 Framed,

Channelized

IP/UDP, L2TPv3 and

MPLS

Low order and high Order

(OC/STM)

Required

CESoETH MEF 8.0 Unframed, Framed,

Channelized

Native Ethernet Low Order (E1/E1/E3/E3) Required for Structure Aware

1 5

NCS Technology Agility

Single Management Umbrella

SDN-Ready Control Plane

Ethernet

Private

Line Virtualized Service Layer

Service Mapping

Logical L2+ Topology O-SNCP, 1+1 APS

Topology Logical Topology

Physical Topology

Programmability

ODU

MPLS Transport

MEF 2.0 L2VPN

(VPWS, VPLS)

Circuit Emulation

(TDM, ATM, Frame

Relay)

Layer 1

MPLS

Transport

Layer 2+

Services

DWDM Layer 0

GigE, 10 GigE,

100 GigE

OTN GMPLS

Control Plane

Service Orchestration

DWDM GMPLS

Control Plane

Multi Layer Data Plane

Control Plane

Extension (RSVP-TE)

(TP, TE, FlexLSP

Tunnels)

ODU Tunnel

SDH, OTN, SDH

Ethernet

• Graceful Transition of Legacy Solutions

• Evolve to Multi-Layer Convergence - – Technology Agnostic

• Virtualized Service Layer -

• Converged Packet Optical Transport System – Keep Transport Operational Model

• Agile and Flexible Transport Network

Summary