Download Transport SDN Solution

Embracing Changes, Becoming Open
Huawei Transport SDN Solution
Transport SDN History
Transport SDN Applications
Huawei Transport SDN Progress
SDN Background and Concepts
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In 2008, the Openflow team in the Stanford University
first proposed the centralized control Openflow solution.
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The closeness, complexity, and poor scalability of the underlying network
greatly affects network innovation.
•
The academia wants to simplify network devices and enhance network
controllability and manageability through the centralized Controller to remove
technological monopoly of mainstream datacom device makers.
SDN: Software Defined Networking
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The control and data planes are separated.
•
Control is centralized.
•
Network is programmable and automatically controller.
Openflow: Control API interface between the centralized
Controller and devices, which controls the flow forwarding
tables of devices.
Management plane
Transport SDN History
NMI
ASON control plane
Application
layer
BoD APP
OVPN APP
Other APP
Northbound open API
Internet-style RESTful interface
PCEP
PCE
NMI
Transport
service plane
In 1998: American Sycamore first proposed the intelligent optical network and introduced IP functions to the optical network.
In 2000: The ITU-T officially determined to carry out the ASON standardization work.
In 2001: The IETF proposed GMPLS and expanded routing and signaling protocols in IP networks to the transport network.
In 2005: The IETF proposed PCE to solve the problem of complex and constrained route calculation in the GMPLS/MPLS multilayer and multi-region network.
In 2013: ONF Optical Transport Working Group(OTWG) is builded. Transport SDN entered the stage.
SDN Standards: IETF VS ONF
IETF: evolutionary SDN architecture
ONF: revolutionary SDN architecture
PCEP,
SNMP, NETCONF,
CLI, OpenFlow
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PCE interfaces are mainly used for smooth network evolution and protect the
investment.
Openflow interfaces refine device interfaces and even device chips and are
mainly used on switches.
IETF PCE Standard Progress
1. Stateless PCE (centralized
route calculation)
TED
2. Stateful PCE
PCE
TED
PCEP
PCEP+
NEs
•
•
Global optimal path is calculated
based on TED.
The PCE standard is already mature,
and Huawei provided most articles for
PCE for transport.
Started in 2005
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3. Active stateful PCE
PCE
LSPD
TED
PCEP++
Real-time LSP synchronization
•
LSP synchronization allows the LSPD to
own total-network LSP information.
Google, Cisco, and Huawei are active in
PCE for transport. Huawei provided more
than half of articles for PCE for transport.
Started in 2011
LSP active control
NEs
NEs
•
PCE
LSPD
•
•
LSP active control (creation, deletion,
and modification)
Google, Cisco, Juniper, and Huawei
have some working groups and
individual articles.
Started in 2012
Stage 1: Stateless PCE has been mature.
Stage 2: Stateful PCE is basically mature. Huawei T-SDN Controller already supports PCE.
Stage 3: Active stateful PCE is in progress. After it is complete, PCEP will serve as the
southbound interface of the SDN Controller and has complete functions.
ONF Optical Transport Working Group
(OTWG) and Related Standard Status
OTWG milestone
Founded on: 2013.03.18
Chair:
Lyndon Ong (Ciena)
Vice Chairs: Ping Pan (Infinera), Vishnu Shukla
(Verizon), Maarten Vissers (Huawei)
(3) Extensions to ONF protocols
(e.g. OFOF-wire, OF
OF--config
config))
v1
(2) Arch. and Frwk
(4) Requirements
(e.g. carrier grade)
Vendors: Ciena, Infinera, Huawei, ALU, Fujitsu, E///, NEC,
Tellabs, Juniper, metaswitch, vello (startup),
bigswitch (startup), ZTE, ADVA, Cyan
SP:
Verizon, Telefonica, DT, NTT, KT, Level3, Colt
v1
(5) Transport SDN
whitepaper/Solution Brief
v1
(1)) Use(1
Use-case
v1
Jun.15,
2013
Sep.15,
2013
Dec.15,
2013
Apr.15,
2014
Content:
• Direct control of transport network elements
• Indirect control on abstracted view of transport network
• Packet-optical integration (POI)
In current stage, use case has been completed; the architecture document is still under
discussion; protocol expansion is being carried out. The overall progress is behind the schedule
and requires at least 2 to 3 years to make PCEP mature.
Transport SDN History
Transport SDN Applications
Huawei Transport SDN Progress
Huawei T-SDN Open Network Architecture
Global network management
Vendor APP
Third-party APP
Multi-region collaborator
Northbound interface
Virtual network control
Field Controller
Optical power
commissioning
Online
commissioning
PCE/
Openflow+
Network
abstraction
…
Physical network control
Southbound interface
Southbound interface
NE management interface
(e.g., TL1, Qx)
EMS/
NMS
Automatic Operation, Implementing Online
Service Provisioning
Old Process
Automation
Collaboration
Current Difficulties
Manually find
bandwidth bottlenecks
• Artificial import & export the data, Low efficiency
• Offline planning prone to distortion
Export Data
from NMS to Planner
New Process
Off-line planning
the newly increased
service
Auto discovery and
automatic warning
Export data
from Planner to NMS
On-line planning the
newly increased service
Commissioning &
Ready for Service
Commissioning &
Ready for Service
Avg. 2 Wks
Openness
• Lengthy process result in slow TTM
Benefits from T-SDN
Avg. 2 Hrs
• Data is automated linked, high efficiency
• Online planning ensure high quality
• Shorten the process, fast service delivering
Automation
Bandwidth Automatic Provide
A
10GE
Application
layer
B
Client 1 virtual view &
control of transport
network
Tenant
Carrier
Network center
Customer service
center
2
1
4 3
6
7
Client 1
Controller
Virtual control
5
Traditional mode: Bandwidth leasing
is manually processed
VIP customer 1
T-SDN Controller
Physical architecture
B
7
Client 2
VIP customer 2
Control layer
2
6
4
Openness
Client 2 virtual view &
control of transport
network
1 24
5 6
Controller
1
A
Collaboration
3
7
8
Transport network A
SDN: provides virtualized bandwidth
operation, man-machine interaction, and
machine-machine interaction
The SDN centralized management system virtualizes network bandwidth, provides a variety of differentiated bandwidth services
(VTS), improves VIP user experience, increases customer stickiness, and brings value-added service revenues.
SDN-based IP + Optical Synergy to Improve
E2E Network Resource Utilization
Orche
strator
Router
Controller
Orche
strator
Transport
Controller
Automation
Collaboration
Openness
Enable Multi-Layer coordination and
Cross-Layer optimization and efficiency:
---Optimized routing and re-routing
Decisions, bring high utilization
R
R
R
R
IP
R
R
P-OTN
R
----Keep all transit traffic in P-OTN Layer,
greatly saving CaPex
P-OTN
P-OTN
-----Fast failure handling
P-OTN
P-OTN
P-OTN
Optical
Automation
Collaboration
Network On-Demand Service
Traffic
Transport
Controller
Time
Openflow/PCEP
Data center
Controller
Openflow
The transport Controller works with the data center SDN Controller to dynamically provide bandwidth and improve
channel usage according to service requirements.
Openness
Open platform to simplify OSS and achieve
innovative applications
OSS
APP1
VTS
Automation
Collaboration
Openness
APP2
BoD
Standard open API
SDN Controller
(Abstraction)
OSS集成方案
OSS
OSS集成方案
Integration
Transport
network A
OSS Integration is very time-consuming
(few months even one year) and blocks the
new technology introduction.
Transport
network B
(for better and faster
technology and business
innovation)
Transport
network C
•T-SDN Simplify the OSS integration
•Allows operators quick to benefit from latest
equipment and technology innovation.
T-SDN Values
Automation
Synergy
Auto-deployment,
Auto-operation
Auto-maintenance,
Multi-layer multidomain synergy,
improving
utilization
Open
Open & standard
interface, rich
APPs, facilitate
business innovation
Virtualization
Flexible
Equipment &
network
virtualized,
Easy to manage
Unified control
of Flex-OTN,
Flex-ROADM
Transport SDN History
Transport SDN Applications
Huawei Transport SDN Progress
Huawei T-SDN Progress
• Automated Service
Deployment of Optical layer
• T-SDN control of flex-grid
Super channel
• Automated Service
Deployment of O & E layer
PDP
Paper
SDN&OpenFlow World Congress
2013.3
2013.11
SDN&OpenFlow World Congress
ChinaTelecom Test
2013.12
2013.10
• Launch 1st T-SDN
prototype
Telefonica Test
VDF POC Test
OFC & ONS 2013
2012.10
2014.1
• Demonstrate Virtual
transport Service(VTS)
• IP + Optical Solution :
protection, centralized rerouting, etc.
Keep
going
T-SDN Help China Telecom to Improve
Operation and Maintenance Efficiency
Result of China Telecom T-SDN Test
Passive
Controller
Active
Controller
DCN
Hours
Hours
N*1000
Hours
100%
Current
Network
85%
Mins
Service
TTM
Mins
Mins
N*100
T-SDN
Resource
Fiber
Service
Network
Evaluation maintenance Survivability scale
 Centralized Control of multi domain network with global perspective to achieve resource optimization
 Online network analysis, automated commissioning and delivery, improve the efficiency and
survivability
Huawei's Contributions in SDN Standards
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Stateful PCE(TSDN) is accepted as WG document
Edit >50% of the drafts in PCE WG
Publish RFC regarding OTN Control
Actively contributor in SDN related area:
NVo3/PCE/ALTO/I2RS/NSC/STATUS/CRC
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Chair of SG11 SDN WP
Q4 associate rapporteur of SG11
G.CSO initiation(Huawei proposed)
Editor of SG15 SDN living list
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Co-chair of infrastructure WG
Co-editor of Reliability WG
Co-editor of MANO WG
Program manager for all projects
Contribute 4 use cases of total 9
Chair of Migration WG
Vice-chair of Optical Transport WG
Chair of Wireless & Mobile WG
Vice-chair of NBI WG
Editor of key standard drafts
Joint proposer of MPLS VPN project
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Huawei is very active in SDN& NFV field, holding a
series of importing positions in standard
organization and has proposed 16 academic thematic
reports, including 4 Invited Talk from 2012 to 2013
Contributor of Carrier WG Req. on Transport
Networks in SDN Architectures
Huawei T-SDN-based OTN Products Portfolio
Huawei OTN Network SDN Solution
Unified SDN Controller
UPS
OSN 6800
OSN 1800 I/II/V
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Compact MS-OTN
3/7/15 slots
Optical Shelf
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1-9D ROADM
CDC/Flex-Grid
OSN 8800 T16
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1.6T switch
16 slots
OSN 9800 U16
OSN 8800 T32/T64
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3.2/6.4T switch
32/64 slots
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2.8/5.6T switch
14 slots
End-to-end OTN product series from the backbone network to MAN
OSN 9800 U32/U64
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12.8T/25.6T switch
32/64 slots