Marek Janik

Senior Product Manager

Jak zbudować własną sieć dystrybucji opartą

o metro Ethernet, MPLS i DWDM

1

Agenda

Huawei MS-OTNHuawei MS-OTN11

22 Service designService design

Ethernet Ring ProtocolsEthernet Ring Protocols33

MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44

2

1999 2001 2007

Year

DEMUX

OTU1

OTU2 OTU3

MUX

Pass through lambda

Regeneration

Add Drop

Fiber Fiber

Traditional WDMOTU+ROADM

�New OTN architecture support ODUk Cross-connecting

�Support OTN to switch at sub-lambda level

�Support ROADM to switch at lambda level

OTNTributary + Centralized Switch + Line + ROADM

From FOADM to ROADM, and to OTN

OTN Electrical Switch Lambda Switch

SDH

OTN fiber

VC ODU PKTPacket

Traditional WDMOTU+ Mux/Demux

�Support ROADM to switch at lambda level

SDH

OTN

Lambda

Switch

fiber

Packet

OTU

Transponder

Muxponder

OTU

OTU OTN electrical cross-connecting for low speed

service grooming.

ROADM optical switch for high speed service,

realizing high efficiency lambda switch without

expensive OEO transfer and manually fiber

connection.

3

Huawei OTN, Best Migration from SDH & WDM

SDH/MSTP

E1/T1, E3/T3

STM-1/4/16/64

FE/GE/10GE Tributary

cards

STM-64

Line

SDI(Video)

Flexible dispatching

VCx

grain

100G TP/MP

10G TP/MP

Traditional WDM

40G TP/MP

10GE/STM-64

40GE/STM-256

100GE

Enormous capacity

Huawei OTN : Flexible dispatching as well as Enormous capacity

10G OTN

4.25G

Tributary

cards10G

Tributary

cards

100M-4.25G Any

10G Any40G

Tributary

cards40G Any

100G OTN

100G

Tributary

cards100G Any

40G OTN

ODUk

grain

OTN

4

100 GbE 100G100 GbE Transponder

40 G Transponder

λ1 100G

OTN

λ1

1st stage

MUXponders

2nd stage

MUXponders

High efficient

one-stop architecture

FE

100M-

4.25G

Any

1

2

8

7

FC 2/4GDVB

STM-1

STM-4

STM-16

λ2

10 G

40/100G

MUXponder

1

2

4

3

10 G

10 G

λ3

10 G

FE/GE

10G

MUXponder

1

2

8

7

FC 2/4G

DVB

STM-1

STM-4

STM-16

40 G 40G 40G

OTN

λ2

40G

OTN

λ310 G10G

Any

1

2

10

9

10 G

10 G

10 G

Manual fiber

connection

Waste of ports &

bandwidth

Extra optical

module is needed

10G/40G/100G OTNTraditional WDM

With tributary-line-separated OTN structure, Both low and high speed service can be mapped into 10/40/100G line

directly without board stacking #

Extra stage

muxponderdirectly

mapping

into

10/40/100G

OTN : One Stop Any Service Mapping

5

Transponder

Transponder

Transponder

OTN Switch

SDH

OTN

ODUOther

OTN

No Switch

SDH

Eth.

Other

Traditional WDM

Universal Switch

SDH

OTN

VC ODU PKTPKT

MS-OTN

MS-OTN

Unified

Transmission

MS-OTN with universal VC/PKT/ODUk switch can relieve challenge from more and more data service, and save TCO

MS-OTN can converge any type of service into the same channel, realizing a unified transmission network for all service

E2E MPLS-TP for low speed PKT service, easy management

SDH switch for traditional TDM service, smoothly migration

ODUk for all high speed service, high efficiency

Unified Platform: Smoothly migrate to MS-OTN

In July 2013, Geneva, Huawei‘s three contributions on MS-OTN had been accepted by

ITU-T SG15 plenary meeting.

6

Convergence Starts with Switch Fabric

IP/MPLS

Eth/MPLS-TP

OTN/SDH

L3

L2

L1

L0 ROADM

Cost

L0

WDM

L0+L1

OTN/SDH

L0+L1+L

2

MS-OTN

7

Further Convergence on Traffic

Page 7

OTNOTN

ODU

k

PKT

SDH

PKT

VC

Universal

Switch

PKT

SDH

GE/10GE/40GE/100G

E

STM-1/4/16/64

OTU-1/2/3/4/#

OTN

OTN

ODU

k

SDH

PKT

VC

PKT

SDH

OTU-1/2/3/4/#

Client

side

Line sideUniversal

SwitchClient

side

Line side

PKT

8

MS-OTN: E2E MPLS-TP supported, Full Flexible Pipe

Average Traffic

If MPLS-TP is enable

on the transport

Devices…

MSTPPCM

Video

SwitchRouterWiFi

Tributary card for service Hybrid line card

FE/GE/10GE... Universal switch

With MPLS –TP

MPLS-TP

PKT/VCx/ODUk

MPLS-TP

MPLS-TP

VLAN

VLAN

Switch

Server

9

Intelligent lease line service for any requirement

2M/STM-N

FE

GE

GE

GE

MS-OTN

Access & Aggr. Core & backbone Access & Aggr.

Lambda

VC/ODU

PW/LSP

Eth/VLAN

ODUVC4

VC12

ODUVC4

VC12

Traffic Traffic

Λ1, Λ2� Λn Λ1, Λ2� Λn

Full granularity, Fixed & Resilient——Intelligent LL pipe

�Full granularity: λ ,TDM(2M/STM-N/ODU), PW/LSP, Eth switch;

�Fixed & Resilient: Fixed LL(λ +ODU+VC); Resilient LL(L2 aggr., LSP/L2VPN);

�Easy Access：Networking with MSTP/PTN, easily covering customer base;

2M/STM-N

LambdaLambda

L2

L1

L0

L2

L1

L0

MSTP

MSTP

MS-OTNMS-OTN MSTP

MSTP

10

MS-OTN, make the network more simple

MS-OTN

BBO

MS-OTNBBO

MCO

MCO

MCO

N*GE

N*GE

MS-OTN

MS-OTN• MS-OTN embedded L2 feature

realize packet traffic convergence

+ = XFP XFP

L2

ME/SDH WDM MS-OTN

• OTN platform improve transport

efficiency

• MS-OTN embed L2 replace

ME/SDH

BBO

N*10GE

BBO

MCO

GE

LSW

MCO

GEGE

OTN

BBO

OTNBBO

MCO

MCO

MCO

N*GE

N*GE

OTNOTN

11

Agenda

Huawei MS-OTNHuawei MS-OTN11

22 Service designService design

Ethernet Ring ProtocolsEthernet Ring Protocols33

MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44

12

Metro network Architecture overview

BRAS

BackboneAccess Node Backhaul

SR/PEIP/MPLS

HGW

WiFi /

Bluetooth

Home/Business

xDSL / FTTx

··

DSLAM

OLT

Switch

IPTV

IMS Core

Internet/SPBusiness

Residential

BNG

SR/PE

BRAS

DWDM/OTN

HGW, access

computer、phone、

STB

Access FTTX、

DSLAM、LSW

Responsible for business distribute, transmit,

extending distance

Authentication,

authorization,

accounting, etc.

Existing network architecture:

1. BRAS and SR are separated, HSI uplink to BRAS, VOIP / IPTV uplink to SR

2. Different services using a different IP address, use different VPN pipeline isolation

Internet、IPTV、

VOIP service

BNG：Broadband Network Gateway

13

Page 13

E2E VPWS Packet Service Solution

MME/SGW

Access

ring

eNB

NodeB

RNC

BTS

backbone

OTN

Aggregation

MS-OTN

C-VLAN E2E VPWS Native IP&L3VPNC-VLAN

BSC

U

N

I

PWvlan1

Tunnel label be switched in

transit site

PW U

N

I

U

N

I

U

N

I

vlan2

N

N

I

N

N

I

N

N

I

N

N

I

Working Tunnel

Protecting Tunnel

14

Page 14

E2E VPWS+VPLS Packet Service Solution

MME/SGW

Access

ring

eNB

NodeB

RNC

BTS

backbone

OTN

Aggr ring

MS-OTN

BSC

U

N

I

PWvlan1

Tunnel label be switched in

transit site

PW

vlan1U

N

IU

N

I

vlan1

N

N

I

N

N

I

N

N

I

N

N

I

Working Tunnel

Protecting Tunnel

VPWS + VPLS Native IP&L3VPNC-VLAN C-VLAN

VSI

15

Agenda

Huawei MS-OTNHuawei MS-OTN11

22 Service designService design

Ethernet Ring ProtocolsEthernet Ring Protocols33

MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44

16

�Drawbacks of STP – The convergence time is too long!

�STP (spanning-tree protocol) is built for the redundant links and loop avoidance network.

When topology changes, STP takes about 30-50 seconds to converge.

�RSTP (Rapid STP) improves the speed of convergence for bridged network from 30-50

seconds to about 4 seconds, by immediately transitioning root and designated ports to the

forwarding state.

�Ring Protocols only spends 50-200 ms converging but it uses a ring topology instead of tree

topology.

Ring protocols

STP RSTP Ring Proto

Topology Type Any Topology Any Topology Ring Topology

Convergence Time 30-50 seconds 6 seconds 50-250ms*

17

Page 17

Ring Network

ProtocolAdvantage Disadvantage

STP/RSTP/MSTP

•Apply to all Layer 2 networks.

•Are standard IEEE protocols that allow Huawei devices to

communicate with non-Huawei devices.

Provides a low convergence speed on a large network, which cannot meet

the carrier-class reliability requirement.

RRPPFeatures fast convergence, meeting the carrier-class reliability

requirement.

•Supports only level-1 subrings on ring networks.

•Is a Huawei proprietary protocol that does not support interoperability

between Huawei and non-Huawei devices.

SEP

•Applies to all Layer 2 networks.

•Features fast convergence, meeting the carrier-class reliability

requirement.

•Displays the topology of an entire ring, facilitating fault location

and device maintenance.

Is a Huawei proprietary protocol that does not support interoperability

between Huawei and non-Huawei devices.

ERPSFeatures fast convergence, meeting the carrier-class reliability

requirement.Supports single-ring and multi-ring networking.

Introduction to ERPS

On a ring network, devices supporting ERPS can communicate with each other regardless of their

manufacturers.

� ERPS is a protocol defined by the ITU-T to prevent loops at Layer 2. Because it is defined in

Recommendation ITU-T G.8032/Y.1344, it is also called G.8032. ERPS defines R-APS PDUs and the

protection switching mechanism.

� ERPS blocks a specified port to prevent loops at the Ethernet link layer.

� ERPS has two versions: ERPSv1 released in June 2008 and ERPSv2 released in August 2010.

18

ERPSv1 and ERPSv2

Function ERPSv1 ERPSv2

Ring type Supports single rings only.

Supports single rings and multi-

rings. A multi-ring topology

comprises major rings and sub-

rings.

Port role configurationSupports the ring protection link (RPL) owner

port and ordinary ports.

Supports the RPL owner port, RPL

neighbor port, and ordinary ports.

Topology change notification Not supported. Supported.

R-APS PDU transmission modes

on sub-ringsNot supported. Supported.

Revertive and non-revertive

switching

Supports revertive switching by default and does

not support non-revertive switching or switching

mode configuration.

Supported.

Manual port blocking Not supported.Supports forced switch (FS) and

manual switch (MS).

19

Topologie ERPS – Single-Ring, Multi-

Instance

20

Topologie ERPS – Multi-Ring and Ladder

21

Agenda

Huawei MS-OTNHuawei MS-OTN11

22 Service designService design

Ethernet Ring ProtocolsEthernet Ring Protocols33

MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44

22

Innovated Technology for High Quality

IP

Hard

Pipe

HardPipe

Low Latency

High Reliability

� Guaranteed bandwidth by reserved hardware resource

� Segregate the scheduling

� OAM fault detection

� Hot standby path

protection

� 50ms Protection

switching time

guarantee

� Independent resources, no scheduling required

� 100us guarantee for even traffic congestion

Soft

Pipe

Hard

pipe

SDH

ATM

Voice

Video

HSI

Ph

ysic

al L

ink

23

Dual plane on Single Chassis

• Has both advantages of IP and SDH

• Hard pipe and Normal Pipe on different plane

Dual Plane

• Independent scheduling resource

• Switch Fabric resource guaranted

Segregate

• BW for hardened pipe can be adjusted anytime

• Unify BW scheduling, efficient BW usage.

Adjustable

Normal

Pipe

Hard

pipe

SDH

ATM

Voice

Video

HSI

Ph

ysic

al L

ink

Leased Line Quantity bandwidth Priority

10GE

Hard Pipe 2G

VLL 3 100M

No need

process

VPLS 3 100M

VLL 1 1G

E1 CES 1 2M

Available . 398M

Normal

Traffic8G

VPLS/VLL/L3

VPNX

Left

Tradition

8 Priority

PQ+WFQIP Packets, X

HUAWEI ENTERPRISE ICT SOLUTIONS A BETTER WAY