SDN WAN for DCI -...

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SDN WAN for DCI

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New requirement of DCI 1

Elastic Cloud Bearer Solution 2

SDN WAN for DCI 3

Summary 4 Topic

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1 New requirement of DCI

© ZTE Corporation. All rights reserved 4

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New Challenges of Internet Plus

• Everything connected, M2M,and users with exponential growth

• Social networking and e-commerce,

• Cloud computing, big data, DC

New Changes

• Internet speed up, cost down requirement

• New network architecture, new operating and commercial model

New Requirements

Traditional network is unsustainable, new DC oriented architecture is necessary

Mobile Internet 3 1 2 Traffic Bomb and Mesh

Internet

Enterprise

WIFI

Aggregate OLT Family

E-CPE

2/3G

4G

BBU

PON

FTTH/DSL

Backhaul

Core

MSE AG/SeGW

BSC/RNC CS/IMS PS/EPC

HLR/HSS

Backbone

RCS CDN SMS/MMS

• Traffic hyper growth and unpredictable data flow

• Low utilization, high OPEX

• OTT penetration with higher efficiency and lower cost

New Challenges


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Infonetics: SDN Strategies Global Service Provider Survey, December 2014

Requirements for DCI

Requirements for DCI

DIY Automatic network Self-service

Real Time Fast service provisioning Minimum TTM

On Demand Elastic pipes, On demand bandwidth

Online Online Planning Easy OAM

SLA Differential SLA for billing

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2 Elastic Cloud Bearer

Solution


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Elastic Cloud Bearer Solution

2/3G

4G

Enterprise

Family

WIFI

Individual Edge DC Regional DC Central DC

IP Core IP Metro

Backhaul

Access

Optical Backbone

Cloud Service Cloud Service Cloud Service

vDC Controller vDC Controller

SPTN Controller

IPSDN Controller IPSDN Controller

Cloud Access Cloud Interconnection Cloud Network

SDN IPRAN solution SPTN solution

SDON solution IP+ optical synergy DCI solution IP backbone traffic optimization

vDC solution vBRAS solution vCPE soluiton

SDON Controller Service-chain

vBRAS

vCPE

Optical Metro

vDC Controller

IPSDN Controller SDON Controller

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3 SDN WAN for DCI


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ZTE SDN WAN Architecture

IPRAN

IDC

Optical

IPWAN

Optical-CO

HCO

Orchestrator

BSS

OSS

ZXDNA

NMS

Ap

plic

atio

n P

lan

e

Operator APP Customer APP

APP server

NFVO

MANO

(NFV Management)

VIM

vNFM

Co

ntro

l Pla

ne

F

orw

ard

ing

Pla

ne

RestConf

RestConf

RestConf RestConf

Netconf/Restconf Netconf/Restcof

SNMP/NETConf/CLI

RestConf

RestConf

BGP-LS/PECP

/NETConfOpenFlow /OVSDB/ NETConf

SNMP/CORBA

Netconf/OF

SNMP/NETConf

Core

IP + Optical

IP-CO Optical-CO vDC-COIP-CO

Optical

Planning Tool

DB

SQL


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Intelligent Network Planning

Elastic Network Infrastructure

Easy O&M

Efficient WAN = Efficient Planning + Efficient Network+ Efficient Service

Efficient Service APP Efficient Control

Efficient Planning Efficient Network Efficient Service

Efficient Bear network for DCI

SDN Intelligent Network Planning Tool: Easy Network Optimization

Online/Offline Network planning

Orchestrator

Network planning H-Controller

Network planning D-Controller

• Plan for network and traffic growth, consolidation, and migration •Forecast traffic based on trends • Recognize the link bottlenecks • Predict the impact of node and link failures on traffic flows and

resource usage • Plan for multi-layer protection and restoration

Features of Network Planning APP

Evaluation Network and service synchronization Analyze network utilization Simulate network failure Planning analysis & Try

Capacity planning

Fragment ratio optimization

Protection and restoration policy

Planning Workflow

Redesign the network Re-dimension links Sites add/remove Evaluate the redesigned network Automatic deployment and maintenance

1

1

2

2 3

3

4

4

2

3

4

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SDN H-Controller ( IP + Optical ) for WAN

BGP NETCONF/Yang

Service Abstract Layer (SAL)

Topology MGT

Statistic MGT LSP MGT

H-PCE

H vRR

Traffic MGT

VPN MGT

Network Service Functions Basic Network Functions

SEC Failure prO-

COessing

Policy management

Cluster management

BGP-LU DB

Controller instance management

Service request resolution

Planning

RESTful

Topology DB

VTELINk DB

Abstract Topology DB

• IP native TE topology • Optical abstract TE topology • VTE LINK management • gLSP management

SRLG

-2

SRLG

-1

H-Controller topology management: • IP layer topology • UNI-Link • Optical layer abstract

topology

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VTE-LINK Management of H-Controller

C --- N +

VTE-LINK TE Group vIF

gLSP 1

gLSP 2

gLSP n

gLSP N --- N + N --- C (FA LSP)

L1

……

L3

vIF vIF VTE-LINK

1 2 3 N 1

2 3 N

1 2 3 N

1 2 3 N

gLSP

TE Group TE Group

FA-LSP

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BOD Case

• No change to the IP layer

topology

• No Change to the IP layer

configuration

• Extension or contraction of

the IP link bandwidth on

the basis of the

coordination between the

IP and optical layers

When the traffic model mismatch the planning IP link bandwidth, the IP link bandwidth can be adjusted dynamically.

The utilization of the IP link bandwidth is over 70%. The capacity extends to 200G.

100G

100G The utilization of the IP link bandwidth is lower than 20%. The capacity directly shrinks to 40G.

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Optical BOD per gLSP

Source ZGC

Destination XD

LO-COal port 1-21-4

Far port 1-16-4

Layer ODU

Bandwidth ODUflex

SLA Restoration

Type Real time

Calendaring

Establish time

Release time

2015-05-01

2015-06-01

08 00 00 ：：

08 00 00 ：：

SDON Controller

GE ~ 100GE

GE ~ 100GE

GE ~ 100GE Manpower

-50%

Days

Term

Hours

Manual

BoD

100%

BoD

VNE

VNE

VNE VNE OTU2

OTU2 OTU2

OTU2

API

Elastic

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IP Link Bandwidth TE-GROUP

A-B 100G glsp1

B-C 100G glsp2

A-C 20G glsp3

IP Link Bandwidth TE-GROUP

A-B 160G glsp1，glsp4

B-C 40G glsp2

A-C 40G glsp3

A

B

C

glsp1 glsp2

glsp3

2*100GE 2*100GE 2*100GE

A

B

C

glsp1 glsp2

glsp3

2*100GE 2*100GE 2*100GE

glsp4

• No change to the IP layer topology • No change to the IP layer configuration • The expansion and contraction of the IP link bandwidth

based upon the coordination between the IP and optical layers.

• Change the bandwidth per gLSP (Optical BOD).

Multi-layer BOD

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Multi-layer BOD Process

1. APP add a new gLSP for IP LINK and

send this requirement to H-CO.

2. H-CO send the gLSP calculate request

to O-CO.

3. The O-CO returns the most optimized

gLSP path to H-CO

4. H-CO inform VTE link binding

information to the IP-CO.

5. The IP-CO send the new gLSP

information to the router B and

triggers the router B to launch the new

path establishment via the GMPLS UNI.

6. The router B detects the new gLSP UP.

7. The router B binds new gLSP to the TE

GROUP

C

IP Controller Optical Controller

IP/MPLS IP/MPLS

GMPLS UNI GMPLS UNI A F B D

E

H-C

Planning APPs

1

3 2 4

5

5 gLSP establishment

7

6

Existing LSP

New LSP

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Protection Synergy- gLSP Optical Failure :MLR-O

• The creation of gLSP can have diversified protection features (Work, Work + Restoration, Work + Protection and w+p+r)

• The gLSP W+R protection, optical failure, automatic optical layer recalculation recover the path. • The gLSP W + P protection, optical failure and automatic switchover to the protection path

Router 2 Router 1 VLAN 100

VLAN 200

VLAN 100

VLAN 200

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Protection Synergy- gLSP UNI Link Failure :MLR-P

Active UNI link

Standby UNI link

• Every router has a port serving for a standby UNI link. • When the device port and UNI Link fail, the services will be

switched over to the standby UNI link rapidly. • The FA-LSP and remote do not need to be changed.

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Hot Standby + Optical(W + R)

IP Controller

H-C

Optical Controller

1 H-CO sends request to O-CO

2 O-CO calculates working and recovery paths to H-CO

3 H-CO synchronize VTE LINK info to IP-CO with optical working and recovery paths info

4 O-CO creates working and recovery paths when gLSP established

5 IP layer switches to the backup path when the primary path failed

IP layer Hot Standby + Optical(W+R)

6 Optical layer establish recovery path

7 IP layer revert

1 2

3

Recovery

4

5

5

6

7

Efficient O&M Realize One-Touch Operation

All-in-one toolbox improves OAM Efficiency by tens of times

One

Key

Intelligent

Planning

Fast

failure location

Automated

Maintenance

APP Sub-Server (Services Manager)

Services Orchestrator

Control

NMS Sub-Server (Devices Manager)

E2E NE

Configuration

BN Unified Resource & Common Functions

Platform Common Functions

NMS Sub-Server (Devices Manager)

E2E NE

Configuration

Controller Sub-Server (Services Manager)


Service Control

Topology Alarm Performance Log Security

Nodes Ports Links Virtual

resource Resource Mgmt

MANO Services Cloud

APP Store

APP Portal

SDON/IP SDN APP


Service Control

ML APP

Planning APP SDN APP ML APP

Mgmt APP

O&M APP

Unified SDN O&M Solution

Topology

Alarm Performance

Log

Configuration

E2E

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4 Summary

Unified network architecture of IP & Optical convergence for optimization

Fast service provisioning, on-demand bandwidth for unpredictable traffic

Automatic deployment and OAM facilitate large-scale DC service distribution with higher efficiency

Open APP store to user and promote network service innovation

Summary

Convergence

Intelligent

Automation

Open

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Thank you

SDN WAN for DCI -...

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