open, hierarchical sdn control systems: ecosystem...
TRANSCRIPT
Open, Hierarchical
SDN Control Systems:
Ecosystem Progress
Chris Janz, Technical VP
Next-Generation Optical Networks, Nice 2016
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“ Network Infrastructure is our most important platform, it is our core competitiveness to
engage in Internet business.”
- Sun Zhengyi in SoftBank
SaaS
PaaS
Operator
OTT
IaaS
NaaS
Cloud
Data Center
Network
Application
Operator
OTT
Communication Information Entertainment Social networking
Service Cloud Cloud Service
Distributed Data Center Centralized Data Center
E2E network DCI
Cloud
Data Center
Network
Application
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The provisioning of planned inter-DC services takes several days to
weeks.
Burst services such as big data analysis and cloud computing bring
heavy IDC workloads, resulting in unpredictable service quality
deterioration.
Service faults should be quickly located. The KPI for level-1 fault
recovery must be less than 2 hours.
Services provisioned in
minutes/seconds.
Dynamic BW adjustment for
scheduled workload operations.
Workload-network service
scheduling automation.
Quick, efficient and
automated fault recovery.
The global DC traffic in 2019 is predicted to rise to
10.4 ZB, at the CAGR of 25%. Source: Cisco,
Fast service provisioning Flexible service pipes Simplified Operations
Global Data Center Traffic Growth
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OTN network
Common IDC B Common IDC A
Super
IDC
Huawei T-SDN Controller
Challenge
Transport-SDN IDC Network
• Inter-IDC operations underpin almost all Baidu
services.
• All inter-IDC traffic is forwarded by the super IDC,
resulting in IDC load imbalances and a requirement
for excess transport capacity.
DCI Network in Eastern China
Bandwidth calendaring: Bandwidth can be added or
deleted at planned times for planned IDC operations.
Load balancing: Bypass function based on OTN cross-
connection improves global network efficiency.
App: Service departments such as Baidu finance and
video can provision services online, simplyfing operations.
Huawei BoD Other apps
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Third-party SDN
controller
Multi-Domain
Management Service
Models
Policy
Management …… Netmatrix
Orchestration
NMS
BoD Automation
Multi-Layer
Management
OVPN
……
…… Applications
SBI (PCEP)
NBI
TE DB
LSP DB SNC-T
Controller
IDC
Enterprise
IDC
Enterprise
RESTful API
RESTful API
QX
MTOSI
Resource
Management Route
Computation Restoration
Service
Configuration
BSS/OSS
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① E2E Service Provisioning
Value: days/hours down to minutes/seconds for service provisioning with SRLG management between IP & optical.
② Multi-Layer Traffic Optimization
Value: avoid local traffic congestion, reduce CAPEX.
A1 B1
A2
A3
B2
“Mice flow” services multiplex in IP layer
“Elephant flow” services
bypass via optical layer
③ Multi-Layer Protection & Restoration
Value: protection auto-negotiation across IP & optical, reduce CAPEX.
IPTV
1 2
④ OAM Synergy, Fast Troubleshooting
Value: unified control, fast service troubleshooting, reduce OPEX.
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Orchestration
IP+Optical Control Synergy
Transport Control Federation
Transport Domain Controller
(Vendor C)
Transport Domain Controller
(Vendor D)
IP Control Federation
Hierarchical SDN Controller
(IP + Optical) NBI: IP/MPLS Link/Tunnel
IP Controller (Vendor A)
IP Controller (Vendor B)
Hierarchical SDN Controller
NBI: Standards-Based Abstract Topology/Tunnel
NBI: Intent, Abstract Topology/Tunnel
NFV
Evolved OSS/BSS, CSO, etc.
“Narrow Waist”
Service Composition Cross-Domain Composition
Network Resource Real-Time Control
OPEN-O
Arbitrary SBIs
Legacy/Proprietary Domain Controllers, SBIs Controller Hierarchy/Federation Standard Transport (TE) NBI Abstractions Open Source Hierarchical Controllers, Orchestrators Clear Orchestration/Control Demarcation
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ONOS-Based Hierarchical Controller
Domain A
Domain B
Domain C
OSN 9800
ONF T-APIs:
- Topology Service
- Connectivity Request/Retrieval
- Path Computation Request/Retrieval
T-SDN Domain Controller
T-SDN Domain Controller
T-SDN Domain Controller
Transport domain controllers,
Transport equipment domains
http://www.marketwired.com/press-release/huawei-crowned-winner-of-sdn-idol-2016-at-open-networking-summit-2107082.htm
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Global topology capture & display
High-performance restoration (multiple approaches)
E2E service provisioning (rich constraint menus)
ONOS and standard T-APIs support workable multi-vendor, multi-domain T-SDN on an open system basis
https://www.youtube.com/watch?v=jcmXgXVEeCk
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Hierarchical Controller
Domain Controller A
Domain Controller B
Domain Controller D
Domain Controller E
Hierarchical Controller
Hierarchical Controller
Domain Controller C
Hierarchical Controller
Potentially unlimited number of levels of hierarchical controllers Parent-child and lateral confederation among hierarchical controllers
Standard N-S and E-W interfaces based on IETF YANG models
Standard I/F (N-S)
Standard I/F(E-W)
IETF Drafts: Hierarchical Control Framework
• ACTN Requirements: draft-ietf-teas-actn-requirements
• ACTN Framework: draft-ceccarelli-teas-actn-framework
IETF Drafts: Topology
• Network Topology: draft-ietf-i2rs-yang-network-topo
• Abstract TE Topology: draft-ietf-teas-yang-te-topo
• OTN TE Topology: draft-zhang-ccamp-l1-topo-yang
• WDM Topology: draft-ietf-ccamp-wson-yang
IETF Drafts: Tunnel
• TE Tunnel: draft-ietf-teas-yang-te
• Transport tunnel: draft-zhang-ccamp-transport-ctrlnorth-yang
ONOS Hummingbird & “I” releases:
• Critical–mass for PoC demo support:
“I “release (11/16)
In parallel – OSSDN Breckenridge:
• PAL for ONF T-API support NB
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Other-Party
Domain Controller
Cross-stratum
orchestration Application
model
Policy
management …… Orchestration layer
EMS/NMS
Traditional NMS
BoD Automation Planning OVPN
… …
Third-party app Application layer
SBI (PCEP)
NBI
SNC-T
Controller
RESTful API
QX
Resource
management Path
computing Restoration
Service
configuration
BSS/OSS
Super Controller
RESTful/RestConf/YANG
RESTful/RestConf/YANG
IDC
Enterprise Enterprise
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