MPLS-TP OAM in Packet Transport
Network (PTN)

Broadband Business Unit (BBU)
Nov. 2010

Steven Chen
Deputy General Manager
Product Management & Marketing
Broadband Business Unit
October 21, 2010

UTStarcom Confidential

1

Contents•

PTN Overview and Technology Advantages– Why & What is PTN?
– PTN technology and its evolution– MPLS-TP OAM Overview and standard progress•

MPLS-TP OAM in PTN
–
–
–
–

•

Comprehensive and Hierarchical OAM in PTN
MPLS-TP OAM Options: GACH+Y.1731 vs. BFD Extension/LSP Ping
MPLS-TP OAM Implementation in PTN
Migration to Standard MPLS-TP OAM

PTN Key Application & Case-studies– Key Applications– China Operators PTN Case Studies•

Conclusion

UTStarcom Confidential2

Mobile Data Growth Drivers

Data Speed

Key Catalysts>100 Mbps
42 Mbps
14 MbpsHSPA+
STM-1/FE(100M)
HSDPA
384kbps
STM-1/FE(100M)
W-CDMA
E1 (ATM)GSM
E1 (TDM)
1990s

Society

Smart Phones
Internet•••

UTStarcom Confidential

LTE
GbE (1000M)

2002

2005

2010

year

Network & Technology
iPhone, Blackberry, and other smart
phones driving the explosive growth inpacket traffic
Mobile carriers have implemented 3G
and/or HSDPA to offer much higher data
speeds
HSPA+ and LTE to offer true broadband
experience3

Major Challenges for Service Providers

1

TDM
Packet$Cost

2 How to improve revenue: Despite the

RevenueNew
Cost
Bandwidtht
Voice Dominant

How to deal with Packet Traffic
Growth: Rapid Growth in 3G Mobile andBroadband subscribers worldwide driving
the demand for high-speed packet transport

subscriber growth, ARPU is going down.
Networks are too complex, difficult to scale,and expensive to maintain. Energy and Realestate are another major challenges

Data Dominant

3 How to offer New Services: Current
New
Servicestransport network infrastructure is notadequate to offer evolving mobile services
such as LTE and advanced enterpriseservices (e.g., EPL, EVPL)

UTStarcom Confidential

4

Major Challenges for Existing Technologies
No enough OAM

L2 devices have
Residential difficulty assuring
hard QoS
AccessLack of 50ms
switch over
Metro Aggregation.
Transport
protectionAG

L3 IP/MPLS Core
BRAS

802

AG

Business.1ad

DSL/PON
Single Tier
Hub & Spokeor Ring

CPE
Corporate

Ethernet

Mobile 2G/3G

MSTP

ATM

MSTP Low
efficiency

E1/ATM

BTS/Node B

NG-SDH/T-MPLS

IP/MPLS/VPLS

New Node B /Base Station have
FE/GE interface

Transport Vendors••

Transport based technology–

Telecom world–

Connection-oriented, fully controlled by Carrier

NG-SDH, T-MPLS, RPR–

Metro aggregation

Enterprise /VPN
ServiceComplexity

Router/Switch Vendors•

Router/Switch based technology––•

Internet world
Connectionless, loosely controlled, ”peer-to-peer”,“plug and play”

IP/MPLS/VPLS–

Metro core to Metro aggregation5

Choices for Service Providers

1

2

3

CONTINUE
deploying SDH/
SONET for transport

But… ▐ Doesn’t scale for packet traffic▐ No support for statisticalmultiplexing – bandwidth
inefficient▐ High CAPEX

THINKSwitch/Router fordata Network▐ Connection-less approach
But… ▐ High OPEX – complex operation
Difficult to troubleshoot – weak
OAM
▐ Doesn’t meet 3.5G/4G
synchronization requirements

DEPLOY
Packet Transport
Network▐ Low TCO
▐ Connected Oriented▐ Statistical multiplexing; Powerful
OAM functions▐ Meets mobile synchronization
requirements

UTStarcom Confidential

6What is PTN?
Packet Network▐ Statisticalmultiplexing, flexible
transport containers▐ Service aware▐ Advanced QOS▐ Scalable▐ Cost effective(Ethernet based)

Best of bothworldsIP, Ethernet, MPLS

Convergence
▐
▐
▐
▐
▐
▐

Transport Network
Connection Oriented
High clock accuracy
Resilient (50ms
MSTP/MSPP
switch-over)(SDH/SONET)
Comprehensive OAM
Multi-service support
Static or dynamic
Provisioning

•
•
•
•
•
•
•

PacketTransport
Network
Multi-service transport over
PacketStatistical Multiplexing
Connection Oriented
Deterministic data plane
Hard QoS
Comprehensive OAM
Network & equipment
protection

Note: PTN is sometimes also referred to as P-OTS or POTP
UTStarcom Confidential

7

PTN Technology Choices
PTN Technology Choices
T-MPLS•PBB-TEA new formulation of MPLS, being
standardized by ITU-T, and designed
specifically for a connection-oriented
packet transport network based onwell-known and widely deployed
IP/MPLS technology and standards

T-MPLS = MPLS (PW/LSP) + OAM – L3 Complexity•

A subset of IEEE Provider Backbone
Bridging (802.1ah) that turns Ethernet
connectionless networking into a
provisioned connection-oriented transport
network primarily for point-to-point
Ethernet virtual connections

PBT＝ Ethernet (MAC/MAC)+OAM – L2 Complexity

PBT and T-MPLS are major PTN technology choices base on different migration path
UTStarcom Confidential

8

PTN Standards Overview
PTN Standard
organization
focus on improvement
and enhancement on
Ethernet technology,
such as: RPR、ERP、
PBB、PBT

Focus on MPLS、PWE3
and VPLS etc,
standard。

focus on T-MPLS
standard, formed JWTteam with IETF for
MPLS-TP in March 2008

formed JWT with ITUT, and promote the
MPLS-TP
MPLS-TPPBB/PBT/ RPR
Ethernet
Ethernet
IP/POS
IP/POSPBB/PBT
MPLS
MPLS

?

MPLS-TP
MPLS-TPATM
ATM

T-MPLS
T-MPLS

SDH
SDH

NG-SDH
NG-SDHWDM
WDM

UTS TN Product Line
Pre MPLS-TPOTN
OTN
UTStarcom Confidential

9MPLS-TP Overview

Joint Working Team••Management
Management Plane:
Plane:
––
––

••

••

NMS

Control
Control Plane:
Plane:––––––––

MPLS-TP
MPLS-TP

Statically
Statically configure
configure LSP
LSP andand PWPW andand manage
manage via
via NMSNMSOAMOAM handling
handling

Optional
Optional
LSP,
LSP, PW,
PW, andand OAMOAM not
not dependent
dependent upon
upon control
control plane
plane
StaticStatic provisioning
provisioning via
via NMS;NMS;

Dynamic
Dynamic Provisioning
Provisioning (e.g.,(e.g., LSP:
LSP: RSVP-TE,
RSVP-TE, GMPLS,
GMPLS, PW:
PW: RFC
RFC 4447)
4447)
under
under study
study

Control Plane
Working-Group
Focus Areas

Data
Data Plane:
Plane:
––
––
––
––
––
––
––

Fully
Fully compatible
compatible with
with MPLS
MPLS
Forwarding
Forwarding based
based onon LSP/PW
LSP/PW Label
Label
Bi-directional
Bi-directional path
path (LSP)(LSP) forfor traffic
traffic andand OAMOAMOAMOAM support
support via
via Associated
Associated Channel
Channel (PW(PW ACH
ACH && GE
GE ACH)
ACH)
MPLS
MPLS based
based Protection
Protection mechanism
mechanism
Pseudo-wirePseudo-wire encapsulation
encapsulation forfor all
all traffic
traffic types
types (Ethernet,(Ethernet, ATM,ATM,
SDH/SONET,SDH/SONET, andand PDH)
PDH)
Transport
Transport hierarchyhierarchy similar
similar toto SDH/SONET
SDH/SONET –– nested
nested PW
PW andand LSPLSP
UTStarcom Confidential

Protection
OAM
Forwarding

10

MPLS-TP OAM Overview•

OAM (Operation, Administration, and Maintenance) Basic Roles
–
–
–
–
–

•

Fault Detection & diagnostic: Continuity Check/Connectivity Verification (CC/CV),
Loopback (LB)
Alarm and Alarm suppress: Generate alarm when fault happens but suppress
large volume alarm through AIS/RDI (Alarm Correlation Suppression)
Performance monitor: packet loss ratio (LM), delay measurement (DM)
Maintenance tools: Link track (LT), Lock (LCK)APS OAM: Linear and Ring APS

MPLS-TP OAM with IETF and ITU-T–

ITU-T and IETF in many technical aspects of the compromise, MPLS-TP OAM
inherited the T-MPLS G.8114 part of the agreement, but the rest of codecs andprotocols supplementary part, by the major inheritance from the IETF.

MPLS-TP & MPLS
UTStarcom Confidential

MPLS-TP & T-MPLS G.8114
11

MPLS-TP OAM Standard Progress Update(1)UTStarcom Confidential

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MPLS-TP OAM Standard Progress Update(2)UTStarcom Confidential

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Contents•

PTN Overview and Technology Advantages– Why & What is PTN?
– PTN technology and its evolution– MPLS-TP OAM Overview and standard progress•

MPLS-TP OAM in PTN
–
–
–
–

•

Comprehensive and Hierarchical OAM in PTN
MPLS-TP OAM Options: GACH+Y.1731 vs. BFD Extension/LSP Ping
MPLS-TP OAM Implementation in PTN
Migration to Standard MPLS-TP OAM

PTN Key Application & Case-studies– Key Applications– China Operators PTN Case Studies•

Conclusion

UTStarcom Confidential

14

Comprehensive & Hierarchical OAM in PTN¾¾ BasedBased onon Ethernet,
Ethernet, ITU-T,
ITU-T, andand MPLS-TP
MPLS-TP standards
standards¾¾ Multi-layer
Multi-layer OAM
OAM support
support¾
ATM, SDH/SONET,SDH/SONET, andand Ethernet
Ethernet¾ Client
Client Layer:
Layer: ATM,¾
PW andand LSPLSP (using(using associatedassociated channel
channel mechanism
mechanism as
as shown
shown below)
below)¾ MPLS-TP
MPLS-TP Layer:
Layer: PW¾
Ethernet andand SDH/SONET
SDH/SONET¾ Network
Network Uplink
Uplink layer:
layer: Ethernet
LSP monitoring and alarming
Generic Exception Label and Generic Associated Channel
Many options including Non IP BFD is an option encapsulation of Y.1731 pdu
Ethernet
Header

L1

L2

LFU/BoS

Generic ACH

Channel Payload

0001 | Ver | Resv | Channel Type

Pseudo-wire monitoring and alarming
PW-Associated Channel
Ethernet
Header

L1

L2

PWL/BoS

PWE-3 ACH

Channel Payload

0001 | Ver | Resv | Channel TypeUTStarcom Confidential

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MPLS-TP OAM Functions and Implementation

UTStarcom Confidential

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MPLS-TP Implementation in PTN•

Pre-standard MPLS-TP OAM Implementation in PTN–

Send OAM packet between MEP/MIP in PTN network. Detect fault andperformance through OAM packet exchanges, generate alarm and related
process–

Pre-standard MPLS-TP OAM
mechism is implemented in current
PTN products like T-MPLS G.8114 or
MPLS Y. 1711
OAM packet is sent/received/handled
by PTN equipment (normally using
FPGA Hardware to handle OAM
packet). The CV interval can be up to
3.3ms per OAM packet. Fault can bedetected within 10ms when 3 packet
missed (3*3.3ms=10ms) which trigger
protection switch.

–•

MPLS-TP OAM Option 1: GACH+
Y.1731––––

Draft-Bhh-mpls-tp-oam-y.1731
Use RFC 5586 GACH package
OAM total solution and fulfill operator’srequirements
Support proactive/on-demand CC/CV,
AIS, RDI, LB, LCK, TST, APS, LM,DM
UTStarcom Confidential

Pre-standard OAM: CV – packet capture•

MPLS-TP OAM Option 2: BFD/LSP
Ping Extension–––

9 other Drafts
Use RFC 5586 GACH package
BFD extension supports proactive
CC/CV/RDI, LSP Ping support ondemand CC/CV, new tools for otherfunctions

17

OAM Options:
G.Ach+Y.1731 vs. BFD/LSP Ping Extension
1
1

2

2
3

4

5

6

7

8 1

2

3
3 4

5

6

7

8

1

2

3

4

4
5

Tunnel label (13)

6

7

8

1

S

TC

2

3

4

5

6

7

TTL

0001

0000

00000000

Channel Type（Y.1731 OAM）

MEL

VersionOpCodeFlags

TLV offset

8

Y.1731 frame format：• use MPLS date plane(Label: 13)• Use G.ACH• use OpCode identify
OAM type

OAM PDU payload area（Y.1731）

End TLV
12

2 3 4 5 6 7 8 1

0001

Version

2 3 4

5 6 7 83

4

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

LSP label

TC

S

TTL

label (13)

TC

S

TTL

Res

Channel TypeACH TLV Header

OAM PDU payload area（BFD、LSP Ping、新定义）

BFD extensions frame
format：•Use MPLS date plane(Label: 13)•Use G.ACH• use Channel Typeidentify OAM type

End TLV Y.1731 has better fault detection function but limited in L2 and below
 BFD expansion can support fault detection up to L3 and below
UTStarcom Confidential

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GACH+Y.1731 and BFD Expansion
Standard Progress
Basic OAM requirements
12

3

GACH+Y.1731

Continuity Check/ Connectivity
Verification (CC/CV)
Connectivity Verification on
demand (CV)BFD Expansion•

IETF draft（draft-asm-mpls-tp-bfd-cc (close tocomplete) draft-ietf-mpls-tp-lsp-ping-bfdprocedures-00）(incomplete)•

IETF draft（draft-nitinb-mpls-tp-lsp-pingextensions）(incomplete)•

IETF draft（draft-flh-mpls-tp-oam-diagnostic-test）(incomplete)•

IETF draft (draft-boutros-mpls-tp-loopback)(incomplete)••

IETF draft (draft-ietf-mpls-tp-fault)(close to complete)

Route Tracing

4

Testing
Debug test•
Loopback

IETF draft（draft-bhhmpls-tp-oamy1731）,(close tocomplete)5

Lock indicate

6

Lock

7

Alarm indication singal (AIS)

8

Remote Alarm Indication (RAI)••

IETF draft (draft-asm-mpls-tp-bfd-cc-cv)(close to complete)9

Client Signal Failure (CSF)••

IETF draft（draft-he-mpls-tp-csf）(incomplete)

10

Packet loss measurement•

11

Delay measurement

IETF draft （draft-frost-mpls-tp-loss-delay）(incomplete)•

UTStarcom Confidential

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G.Ach+Y.1731 OAM Packet Definition
1
1

2

2
3

4

5

6

7

8 1

2

3
3 4

5

6

7

8

1

2

3

4

4
5

Tunnel label (13)

6

TC

7

8

1

S

2

3

4

5

6

7

8

TTL

0001

0000

00000000

Channel Type（Y.1731 OAM）

MEL

VersionOpCodeFlags

TLV offset

OAM PDU payload area（Y.1731）

End TLV

G.Ach MPLS-TP OAM Packet Format Definiation
OAM PDU Frame definitions:a. Tunnel label:16 bits, value = 13, GAL
b. TC: 3 bits, traffic classification;c. S: 1 bit, Value=1 means bottom of stack;d. TTL: 8 bit, Value=1 or MEP to MEP hops+1;
e. channel type identify it is an OAM packet;f.
MEL: Maintenance entity level; configurable, default = “7”;g. Version: Identify OAM protocol version, set to 0
h. OpCode define OAM PDU packet type (see right table)i.
TLV offset: 8 bits, related to OAM PDU type, Value=0 means TLV
offset one byte;j.
OAM PDU payload area: OAM PDU packet content;k.
End TLV：8 bit, identify end of OAM PDU packet
UTStarcom Confidential

OpCode Definition20

Select G.ach +Y.1731 as PTN OAM•

CMCC/China CCSA select G.ach +Y.1731 as PTN OAM standard
–
–
–
–

–

Treat draft-bhh-mpls-tp-oam-y.1731 as option of MPLS-TP OAM
Y.1731 Ethernet OAM: 0x8902
Select RFC5586 experimental Code Point 32767 (7FFF) as channel type
Alliance:• PTN vendor: Al-Lu, Huawei, ZTE, Fiberhome, UTStarcom;• Operators: China Mobile, China telecom, China Unicom, TI, CJK, telefonica etc.
Push the acceptance and standard process in ITU-T and IETF

Option 1: GACH+Y.1731

Option 2: MPLS-TP & MPLS

Mature, meet all the requirement
at technical point of view
Easy upgrade from existing PTN
system to support thisMechanism
Better availability, Large volume
PTN deployed in CMCC andmost PTN equipment can
upgrade to to support it in shortterm

Not complete and not mature,
can not meet short term
requirements (at least another 2
years to be mature)
Hard to upgrade from existing
PTN system to support thismechanism, hardware upgrade
might be necessary
Consensus and might be final
standard at lastNo equipment or vendor
declare support it

UTStarcom Confidential

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Migration to MPLS-TP OAM•

MPLS-TP standards Progress– Standards still in development by the JWT from ITU-T and IETF.
– MPLS-TP is based on PWE3 and LSP forwarding architecture which is within
IETF MPLS standards. So there are minimal changes in the LSP and PW datastructure•

Upgrading to MPLS-TP OAM– More comprehensive OAM features to handle the end-to-end management of
network than IP/MPLS.
– MPLS-TP OAM standards are still under development, hence current installed
equipment will have to be upgraded to support the new OAM formats andmessages to comply with Standard

UTStarcom will ensure smooth migration to MPLSTP OAM without any service disruption

UTStarcom Confidential

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TN OAM Upgrade Scenario

TN725

TN705

TN703

•

•

When MPLS-TP OAM standards are finalized, TN series can be upgraded
to work on dual OAM formats simultaneously (Dual-Mode): one mode
supports the old format, and another one supports the new format thatcomplies with the finalized MPLS-TP standards.
The whole upgrade process is divided into two steps:
1. upgrade each node to support dual OAM formats
2. activate the LSP to support new OAM format.
UTStarcom Confidential

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Contents•

PTN Overview and Technology Advantages– Why & What is PTN?
– PTN technology and its evolution– MPLS-TP OAM Overview and standard progress•

MPLS-TP OAM in PTN
–
–
–
–

•

Comprehensive and Hierarchical OAM in PTN
MPLS-TP OAM Options: GACH+Y.1731 vs. BFD Extension/LSP Ping
MPLS-TP OAM Implementation in PTN
Migration to Standard MPLS-TP OAM

PTN Key Application & Case-studies– Key Applications– China Operators PTN Case Studies•

Conclusion

UTStarcom Confidential

24Mobile Backhaul using PTN
Cell Site

Mobile Backhaul

Cell Site

Mobile Backhaul

A-bis
E1/T1
AAL2/5

T1/E1 (Copper)
2G BTS

SDH/SONETT1/E1 (Copper)
2G BTS

ATM
IMA
E1/T1

3G Node B

3G Node B

IP
MLPPP

ATM
(Copper or Fiber)

E1/T1
AAL2/5ATMATM

3G Node B

ATM(IMA/STM-1)

Any traffic over
MPLS-TP3G Node B

STM-1
LTE
UDP/IP
Ethernet

Ethernet(Fiber, GPON, xDSL)

IP over Ethernet
or MPLS

3G NodeB or
LTE eNodeB

Ethernet(Fiber, GPON, xDSL)
3G NodeB or
LTE eNodeB

Migration
Migration toto Unified
Unified Transport
Transport Network
Network
UTStarcom Confidential25

SDH/MSTP Replacement
BSC

Classic
2G, 3G, HSDPA,
LTE, …

BTS
NB

E1

E1

TDM
TDM (SDH)
(SDH)

E1

RNC
STM1

BSC

HybridTDM
TDM (SDH/MSTP)(SDH/MSTP)

BTS

2G, 3G, HSDPA,

NB

LTE, …

E1
Eth

E1

E1

RNC

PacketPacket(PTN)(PTN)

Packet2G, 3G, HSDPA,
Broadband
Aggregation,
Enterprise, LTE,
…

NB

STM1
Eth

BTS

BSC

Eth

E1

PacketPacket (PTN)
(PTN)

Eth

RNC

EnterpriseBB access

STM1
Eth

Eth

UTStarcom Confidential

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Migrate to PTN at China Operators
China Operators’ PTN Market

China Mobile (CMCC)

China Telecom (CTC)

1. Start PTN research with PTN
vendors since Q3/2007.

1. Start CE (Carry Ethernet) testat Q4/2006 and switch PTN
technology later

1. Start CE (Carry Ethernet)
test since 2008 and did a few
trials.

2. After PTN investigation andresearch, start large scale PTN
test since Q3/2009

2. Switch to PTN and start
PTN test Q4/2009 andfinished at Q1/2009

3. PTN field trail since Q1/2010;
more than 3000 PTN nodes trial
in the network

3. Start PTN field trial
Q2/2010 and close to 2000
PTN nodes are running in thefield.

2. Start PTN equipment and IOP test
since Q4/2008;
3. Mobile backhaul by PTN field trial
Q1/2009 and 1588v2 test in Q2/09
4. First PTN purchase Q4/2009 andsend phase purchase Q2/2010.
More than 100K PTN nodes are
installed and carrying living traffic.

China Unicom (CUC)

Orientation has been confirmedthat evolution is inevitable

UTStarcom Confidential

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Case Study – Mobile Operator China

2G Network

3G Network
Ref.
clock

MS
E1

E1

BTS

ATM

NodeB

SDH

BSC

SDH
ATM

NodeB

Customer Background & Pain-points
••
••
••
••
••
••

Over
Over 470
470 million
million subscribers
subscribers –– includes
includes 2G2G andand 3G3G (400,000+(400,000+ base
base stations
stations installed
installed andand growing)growing)
Operates
Operates not
not only
only basic
basic mobile
mobile voice
voice services
services but
but also
also value-added
value-added services
services such
such asas data,IPdata,IP
telephoneandmultimedia.
telephone and multimedia.
Start
Start toto deploy
deploy TD-SCDMATD-SCDMA 3G
3G network
network since
since 2008
2008
Looking
Looking forfor IP
IP RANRAN solution
solution scalable
scalable toto support
support future
future data
data service
service andand atat thethe samesame time
time support
supportTDM
TDM andand otherother legacy
legacy services
services such
such asas ATMATM
Has
Has deployed
deployed more
more than
than 100K
100K PTN
PTN nodes
nodes network
network since
since 2009
2009
Start
Start MPLS-TP
MPLS-TP OAMOAM IOP
IOP basebase onon GACh+Y.7131
GACh+Y.7131
UTStarcom Confidential

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CMCC 3G (TD-SCDMA) Network Migration•Current 2G/GSM Networks : TDM based BTS• Current 3G/TD-SCDMA Networks : ATM IMAE1

and BSC. E1 at BTS, STM-1 and E1 at BSC

at Node B, Channelized STM-1 at RNC

Ref.
clock

MS
E1

E1

ATM

NodeB

SDH/MSTP

SDH
RNC

BTS

BSC

ATM

NodeB

•Future 3G/TD-SCDMA Networks : FE
at Node B, GE at RNC
Ref.
clock
NodeB

PTN

GE

RNC
FE

NodeB

UTStarcom Confidential•

Sync Requirement in current 3G/TDSCDMA Networks– Base stations need frequency sync: +/0.05ppm, and phase sync: +/- 3us– For base stations, reference clock is
distributed via GPS or PTN.
• Time sync between NodeB and
GPS/PTN: +/- 1.5us29

Requirement Highlights•Requirements to PTN:
-Converged network to support multiple type of services: legacy E1, ATM and future FE-Common network for wireless and fixed line broadband service-Reliability, QOS, OAM, controllable and manageable-Performance including delay, jitter-Privacy-Inter-working with IP/MPLS and SDH/NGSDH-Distribute Frequency and time synchronization to Base stations• MPLS-TP PTN solution address these requirements by-Multi-service support-Carries class design with hardware redundancy and OAM to support <50ms protection
switching, fault detection and monitoring of tunnels-Use of network management systems to pre-configured CIR, EIR Bandwidth, control how
tunnels are configured or provisioned-Provide frequency synchronization signal to BTS and Node B (+/- 0.05ppm) and time
signal in the future-End to end QOS
UTStarcom Confidential

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UTS PTN Value Proposition
CompetingTechnology/Product
•
•
•

•

•

•

MSTP
MSPP
SDH/SONETTransport

Carrier Ethernet

Other T-MPLS/MPLSTP based PTN
products
PBB-TE based
products

UTS PTN Advantages•••

Data friendly – statistical multiplexing,
flexible transport containers, easy interworking
Advanced QOS control & Multicast
Bandwidth Efficient & Scalable

•
•
•
•
•
•

Connection Oriented, end to end QoSHigh clock accuracy
Resiliency on par with TDM network
Comprehensive OAM
Multi-service support
Powerful Network management for e2e
service provisioning

•
•
•
•
•
•

State-of-art pure-packet architecture
Competitive cost
Diverse set of interfaces (TDM, ATM, IP)
Compact platform
MPLS-TP (pre-standard) Compliant
Service oriented NMS

UTStarcom Confidential

TN Solution Set

TN703

TN705

TN725

TN735

Converged
Transport
Solution
31

Contents•

PTN Overview and Technology Advantages– Why & What is PTN?
– PTN technology and its evolution– MPLS-TP OAM Overview and standard progress•

MPLS-TP OAM in PTN
–
–
–
–

•

Comprehensive and Hierarchical OAM in PTN
MPLS-TP OAM Options: GACH+Y.1731 vs. BFD Extension/LSP Ping
MPLS-TP OAM Implementation in PTN
Migration to Standard MPLS-TP OAM

PTN Key Application & Case-studies– Key Applications– China Operators PTN Case Studies•

Conclusion

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PTN -- The Best choice of Metro Access &Aggregation (1)

•

•
•
•
•

Higher bandwidth: from E1/STM-1 to FE/GE; from dial in
to xDSL to xPON; From nx64kbps to nx Mbps;
Real time: real time application; clock sync; time sync
Low delay and delay variance: Delay and Jitter sensitivity
service
Higher performance: advanced QoS, CIR/EIR, CBS/EBS
Higher availability: 99.999% and higher
Mobility: from fix to mobile
Resilience: sub 50ms switch time

•

……

•
•

New
Services
Requirements

IPTV/Medium
stream• Real-time• High bandwidth• High performance• <50ms protection• Multicast supporting• P-to-MP• Fixed route

VoIP• Real-time• High performance• <50ms Protection• Aggregation to corerouter• Fixed routeEnterprise
VPN• Committed
bandwidth• Service
isolation• Fixed route

Br
ba oa
nd d

Meet New Services’ Requirements
IP

MobileLive TV
Video Phone/
conference• Real-time• Committed bandwidth• Protection• P-t-P/ MP-t-MP• Aggregation to video
server• Fixed route

Bandwidth • Jitter/latency • protection • Security
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PTN -- The Best choice of Metro Access &Aggregation (2)Meet Network Migration’s Requirements
•

•

•

•
•

•

Multi-services support• Support ATM, TDM, Ethernet services in an unified access/aggregation
network.
Topology free:• support any topology as the existing fiber network
Operation continuity:• Utilize rich transport operation experience in past decade;• Centralized powerful network management system (NMS)• Simply training and quick knowledge transfer;• Continue to use the existing operation process and can change step by
step;
Hierarchical OAM for quick fault isolation and trouble shootingHigh accuracy sync clock and time delivery

……

LSP

ATM
TDM
Ethernet

TDM • ATM • Ethernet • Topology Free • Operation
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PTN -- The Best choice of Metro Access &Aggregation (3)Lower CAPEX and OPEX
•

•

•
•
•

Network and equipment simplify：• Aggregated traffic (from access to core) dominate Metro access &aggregation
network• Connection oriented and mainly permanent network connection circuit• No addressing and routing is required at most of time (fixed route)• No full Mesh network existing at Metro access & aggregation
Reduce the complexity of network operation• Hierarchical network structure– Independent packet transport layer; Not peer
IP/MPLS Network; avoid large scale of IP/MPLS domain• Manage and maintenance much more equipments per engineer simultaneously(hundreds vs. tens)
Network
NetworkNew
New• Lower transfer cost
Investment
Investment
Services
Services• Simpler IP address planning; Not touch customer’s
IP planning
Smaller footprint
Achieve the Goal
Lower power consumption……
Operation
Operation

Simplify • Reduce complexity • Smaller • Lower
UTStarcom Confidential

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NetRing TN – Packet Transport Network
Product Portfolio••

Under Developing
Aggregation/Core Device

Switching
Capacity

TN 735*
•
•

•
•
•
•
•
•

Edge/Aggregation device
Compact

Edge Device
1U Entry Level Pizza box

Under
Developing
CPE boxAggregation Device
Medium size

TN 725320/640 Gb/s

108/160 Gb/s

TN 705

TN 70388 Gb/s
6.4/44 Gb/s

TN 701*<6.4Gb/s

1U

3U

7U

18U

Chassis Size
UTStarcom Confidential36Thank you

UTStarcom Confidential

37