Transcript mpls-26x

Operators Considerations
on MPLS-TP OAM tools
draft-fang-mpls-tp-oam-considerations-00
Fang Li (CATR China)
Han Li (China Mobile)
Alessando D'Alessandro (Telecom Italia)
Ruiquan Jing (China Telecom)
Guangquan Wang (China Unicom)
MPLS WG, 78th IETF - Maastricht
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Document objectives
This Informational Internet-Draft is aimed at
Pointing out the urgent and increasing
requirements of PTN applications for the
metro packet transport network (PTN)
Moving forward the progress of an
essential MPLS-TP OAM toolset
Proposing to adopt the solution based on
draft-bhh-mpls-tp-oam-y1731
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Document structure
Carriers’ activities and positioning
Requirement of MPLS-TP OAM function
toolset
OAM solutions investigation for PTN
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Carriers’ activities and positioning
 Several Service Providers have undertook lab tests and
field trial of different PTN solutions: MPLS-TP, PBB-TE,
IP/MPLS
 MPLS-TP emerged as the preferred solution for large
scale PTN deployments
 Multi-service transport platforms
 Broadband and mobile backhauling
 Ethernet Private Line services
 MPLS-TP significant deployment has started this year
 … and hence the urgent need for availability of multi-vendor PTN
solutions with proven carrier class OAM is critical
 Draft-bhh based OAM is a de facto standard in China
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Requirement of MPLS-TP OAM function
toolset
In line with RFC 5860
Further requested objective:
The OAM toolsets for MPLS-TP in PTN
should provide the same functions,
performances and transport operational
behavior already available in ITU-T Y.1731
because from operators perspective it is
simpler to maintain a single general OAM
toolset when operating different technologies
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OAM solutions investigation for PTN
Solutions
(1)
(2)
draft-bhh
Comments
Available implementations and official tests
•Essential OAM functions (CC/CV,
AIS/RDI,LB,LCK,LM,DM,CSF)
•Compliant with RFC5860,
RFC5586
•Passed the lab verification test in
CATR
•Passed 2 times EANTC interworking test
(CEWC2009,MPLS2010)
•At least four vendors support (ALU,
Huawi, ZTE, Fiberhome)
It is recommended that the solution
elements described in
draft-bhh-mpls-tp-oam-y1731be included
BFD/LSP Ping
within•Under
thedevelopment
MPLS-TP toolkit for supporting
Extension
•Operators need verification testing for
MPLS-TP
OAM
Functions,
and that the draft
vendors’
equipments,
at least 1-2 year
later
new OAM tools
be progressed
as a Standards Track RFC
Operator’s preference depends on the application domains, network evolution strategy,
etc. If you had an urgent need for deployment with proven OAM behavior and
compatible operations across optical & packet transport technologies, what solution
should you select?
CMCC, CTC and CUC have already selected solution 1
TI is going to test solution 1
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QUESTIONS ?
THANK YOU
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OAM solutions investigation for PTN 2/2
Operator’s preference depends on the
application domain, network evolution
strategy, etc.
E.g. priority is maximizing synergy with transport-oriented Operational
and Management practices already in place (as draft-bhh provides)
respect to maximizing the same behavior for evolving IP/MPLS
networks (as extension of IP/MPLS OAM tools can provide)
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Carriers’ activities and positioning: China
Mobile
From 2008Q1~2009Q3，Lab test
and field trial of three researched
solutions for 3G wireless backhauling:
pre-MPLS-TP based PTN, PBT
based PTN and IP/MPLS.
From 2009 Q4~2010Q1, it has built
a pre-MPLS-TP based PTN network
with more than 38000 PTN
equipments distributed in about in
140 metro areas, to supporting TDSCDMA wireless backhauling and L2
VPN services for business customs.
In 2010 Q2-Q3, the 2nd centralized
purchasing of more than 100,000
PTN equipments based on draft-bhh
OAM are on going.
Typical Metro PTN network topology
in China Mobile. 5387 PTN nodes are
used for wireless backhauling,
broadband (PON-OLT) backhauling,
private line services
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Carriers’ activities and positioning: China
Telecom
 China Telecom has been evaluating PTN
technology application for more than two years,
and identified the 3G Mobile backhauling and
Ethernet Private Line services as the major
drivers for deploying PTN technology
 It has built a PTN network with 2200 nodes in
Chongqing, Sichuan
 Further PTN networks are planned to be
deployed
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Carriers’ activities and positioning: China
Unicom
 Since 2009, China Unicom has conducted a
large scale of MPLS-TP based PTN lab testing
to evaluate the maturity of pre-standard PTN
implementations. The key driven for PTN
application in China Unicom is multi-service
carrying and transportation.
 In 2010, China Unicom is planning to build PTN
field trail networks based on lab test
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Carriers’ activities and positioning:
Telecom Italia
 Investigated PTN technology since 2008 for
broadband and mobile backhauling and TDM
transport over a unified platform
 Tested several vendors’ PTN equipment
 OAM based on pre-standard MPLS-TP
implementations
 Already planned the deployment of a multivendor PTN network
 Already planned testing of draft-bhh based OAM
as a potential homogeneous solution
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