technology for the future optical internetworking

(1)

2nd Workshop on Future Internet Design

Evolution of virtualization

technology for the future optical

internetworking

Michiaki Hayashi

[email protected]

KDDI R&D Laboratories Inc

KDDI R&D Laboratories Inc.,

2-1-15 Ohara, Fujimino-shi, Saitama 356-8502, Japan

+81 492 78 7547 +81 492 78 7821

(2)

Agenda

Networking evolutions

Network resource virtualization for telecom operator

High-level architecture

Design of prototypes

Demonstration

Policy-based E2E quality control

y

q

y

Resource scheduling

Distributed messaging flow

Virtualization of functional modules

High-level architecture

C

h f

ti

t l

Cache function control

Conclusion

Sep. 21st, ‘08

2 2nd Workshop on FID

(3)

Networking evolutions

From consolidation to customization

-From consolidation to

customization-~Today

_“NGN”

_{Beyond NGN}

e

y

o

n

_n

Virtual network

ADM ADM

IP/Ethernet

a

nsport

h

itectur

e

s

olidati

o

Storage(e g cache)

o

mizatio

n

TDM

Tr

a

arc

h

IP/Ethernet

Con

s

Data processing

(

i

)

Storage(e.g. cache)

Cust

o

ATM

n

g

_ies

_{Control plane}

_{Session/flow control}

(e.g. compression)

Virtualization

N

etworki

n

c

hnolog

(MPLS, GMPLS)

Control plane

(MPLS GMPLS)

(IMS, RACF, BGF)

_{(Network resource,}

Functional

modules)

Sep. 21st, ‘08 _{2nd Workshop on FID} ₃

(4)

Virtualization: Advantages

Short delivery time

Prompt coordination of heterogeneous infrastructures

p

g

Low cost

Good reusability and high utilization of infrastructures

Flexibility

Customized network and other building blocks

Connectivity

Customized network

(5)

Agenda

Networking evolutions

Network resource virtualization for telecom operator

High-level architecture

Design of prototypes

Demonstration

Policy-based E2E quality control

y

q

y

Resource scheduling

Distributed messaging flow

Virtualization of functional modules

High-level architecture

C

h f

ti

t l

Cache function control

Conclusion

Sep. 21st, ‘08

(6)

Virtualization: Grid approach

5

2Gbps

Site A 5

From G-lambda project (www.g-lambda.net)

Grid Application

Grid Portal

1 2Gbps 10 Site B _{Site C} Reserved time : hhmmss hhmmss

Applications

1 2Gbps 10 Duration : x min

Grid Resource Scheduler

hhmmss - hhmmss

Result

Deadline : hhmmss

Requirement

Computing Resource Managers

Network Resource Managers

Middleware

for virtualization

#6#

6 #6#6

# #

Computers

Resource/

Fabric

Sep. 21st, ‘08 _{2nd Workshop on FID} ₆

#6#6

(7)

Seeds of virtualization in NGN

From ITU-T Rec. Y.2012

IMS

(IP Multimedia Subsystem)

RACF: Resource

virtualization for IMS

Sep. 21st, ‘08 _{2nd Workshop on FID} ₇

(8)

Network resource virtualization

Based on Grid approach

- Based on Grid

approach-

Virtualization

: NRM as a virtualization engine for various resources

Common API

: Network service interface (NSI) for coherent accessibility

Common API

: Network service interface (NSI) for coherent accessibility

Business process

: Harmonization to the business processes

Application

Provisioning system

Other OSS

SOA b

Network service clients

_{Common API}

over SOA bus

Business

Process

Oriented

SOA bus

NRM

- NRM: Network Resource Manager SOA S i

Virtualization

Engine

Network

1 Network

2-1

Network

2-2

Network

3

- SOA: Service Oriented Architecture

Engine

Sep. 21st, ‘08 _{2nd Workshop on FID} ₈

1 Network 2

(9)

Network as a service in SOA

Loosely coupled

Tolerant to any change of backend systems (Good reusability)

Implementation environment

Rich frameworks and development tools (Lower development cost)

Business driven work flow

Easy integration to the existing business process

Accounting

Backend

systems

SOA

supply chain

User profile

P

i i

i

Inventory

Network

Provisioning

Inventory

Alarm

_Metering

(10)

Virtualization of optical networks

R

t

iddl

d b KDDI R&D l b

Resource management middleware proposed by KDDI R&D labs

NRB:

Single point of contact

to service control layer

NRMs:

Distributed

management to

cover E2E

Services control

Alarm Application

SDP Configuration system

Network service clients

IMS/MMD NRB: Network Resource Broker_{NRM: Network Resource Manager}

layer servers Inventory Traffic

NRB

Orchestration

Resource management system A-NRM M-NRM C-NRM A-NRM SOA-bus

Virtualization

layer

Orchestration

layer

management system Virtualization Orchestration Data center EMS Access Access Resource control layer Metro Metro s port layer VoIP P2P CPE IPTV OLT Core (Mesh) VoIP P2P IPTV CPE OLT Si Si SiSi (Ring) (Ring) Tr a n s P2P Video-conference Router P2P Video-conference Si Si Si Si SiSi Si Si Si Si SiSi

(11)

Design of virtualization engines

Hierarchical

path computation with NRB-NRM

load sharing

resource

management architecture

NRB:

Abstracted

topology handling and

p

gy

g

parallel transaction

p

handling

g

NRM:

Detailed

topology handling, resource

scheduling

and deciding

resource allocation

policy

Universal WSI*

for reconfigurable extensibility

NRB

NRM

NRB

*WSI: Web Services Interface Universal WSI

NRB Web services module

Web AS WSRF

Web services module

Web AS WSRF NRM Transaction Transaction DB Mediation module Mediation module Path comp.

Parallelizing Roll back Abstracted Path comp. Scheduler Transaction

DB

Policy DB Resource DB Web services module

Web AS WSRF

g

topology DB

Network C&M module

Resource DB

Web AS WSRF

NRMs

Network C&M module

NE or EMS

Sep. 21st, ‘08

(12)

GE-PON virtualization

M

t

li i

d

h

i

Management policies and mechanisms

Policy-based

CIR/PIR

provisioning for

each LLID (<4 per user)

Time-scheduled

bandwidth management of

g

shared PON link

Call admission control

and

degeneration

management

On-demand

and

scheduled

services

DBA*

for unused bandwidth

*DBA: Dynamic Bandwidth AllocationDBA: Dynamic Bandwidth Allocation

OLT ONU/HGW IPTV 4 Shared PON link Service path segment A-NRM e d-CIR

Admission control line (1Gbit/s)

LLID #1 LLID #2 LLID #3 1 Gbit/s link VoIP P2P/ data IPTV 4 6 0 T otal reserv e LLID #4 ToS

markerClas-sifier

4 1 Gbit/s max. 1 Gbit/s link from/to Metro ring data Video-conference 5 Policer o S marker Σ Time T LLID#1 LLID #253 LLID #254 LLID #255 4 6 0 s sifier C o QoS CIR (%) PIR (%) 0 100 100 Policy table R assigned LLID#1 LLID#2 LLID#3 LLID#4 LLID #256 ONU/HGW 5 Cla s 0 100 100 7 0 100 Time CI R _LLID#4 LLID#N Sep. 21st, ‘08 12 2nd Workshop on FID

(13)

RPR virtualization

Management policies and mechanisms

Policy-based CIR/EIR provisioning for each VPLS path (<1023 total)

Cl

ifi

i

f

i

i h

VLAN ID

d Q S

Classification of services with

VLAN-ID and QoS

Time-scheduled

bandwidth management pf shared RPR link

Call admission control

and

degeneration

g

management

g

On-demand

and

scheduled

services

2.4 G link from/to a neighbor

Shared RPR link Service path

Admission control line (2.4Gbit/s) e d BW RPR node Service path (VPLS path) HP QoS CIR (%) EIR (%) otal reserv e BW assignment Policy tables from /to OLT HP G1 G2 (%) (%) 0 100 0 7 0 100 Σ Time T o O b ki t VPLS#1(HP)

Clas- Poli

Clas-BE Overbooking rate Class Rate (%) HP NA G1 200 VPLS#2(G1, G2) ( ) V PLS BWs sifier 2.4 G link from/to a neighbor -cer sifier G1_G2 _1,000200 BE 10,000 Time VPLS#N(BE) V Sep. 21st, ‘08 13 2nd Workshop on FID

(14)

IP/lambda virtualization

Management policy and mechanisms

Request-based adaptive

LSP allocation

In-advance path computation

with breadth-first search

LSP

l

ti

l t

d b

d idth

i

t

LSP selection meeting

latency

and bandwidth requirements

Time-scheduled

bandwidth management with

per-link basis

Admission

control and

degeneration

management

O d

d

h d l d

i

On-demand

and

scheduled

services

1Gbit/s 2.4Gbit/s

3

rd

Different

li k tt ib t

Link ID Resource scheduling table per link 2 Gbit/ 2 4 Gbit/

2G path (A-B-C-D-E) 2.4G path (A-B-I-J)

LSC _PSC

5ms _6ms _1ms

1

st

2

nd

3

rd

link attributes

A-B#1 B-C#1 C-D#1 2 Gbit/s 2 Gbit/s 2 Gbit/s 2.4 Gbit/s A 1ms B C D E 4ms 6ms _7ms 3ms

Loop

D-E#1 B-I#1 J-I#1 2 Gbit/s 2.4 Gbit/s 2.4 Gbit/s 1ms 7ms

p

detection

_J-I#2 I-G#2 G-F#2 500 Mbit/s 500 Mbit/s 500 Mbit/s J I G F 1ms 8ms G F#2 ･･･ Time 500M path (J-I-G-F) Sep. 21st, ‘08 14 2nd Workshop on FID

(15)

Agenda

Networking evolutions

Network resource virtualization for telecom operator

High-level architecture

Design of prototypes

Demonstration

Policy-base E2E quality control

y

q

y

Resource scheduling

Distributed messaging flow

Virtualization of functional modules

High-level architecture

C

h f

ti

t l

Cache function control

Conclusion

Sep. 21st, ‘08

(16)

Demonstration

Southbound implementation of NRMs

A-NRM: CLIs of OLT, C-NRM: CLI of router, M-NRM: CORBA of EMS

Typical server platforms for NRB and NRMs

Memory: 768 Mbytes

CPU: 2.4 GHz

G-NRM M-NRM1 L2 switch A-NRM Client NRB M-NRM2 CPE 1 CLI (of OLT) EMS CORBA CLI

(of edge router) EP 1

RPR2 Si Si C Si Si Si Si OLT1 Si Si Si Si Si Si Metro Metro CPE 2 CPE 3 EP 2 RPR1 RPR6 EP 4 EP 5 Si Si SiSi Si Si Si Si SiSi Si Si C (Ring 1) (Ring 2) C t l l CPE 3 EP 3 RPR3 EP 6 _RPR5 RPR7 EP 5 Core Control plane 1ms 3ms 5ms 10ms 1ms Rtr1 XC1 XC2 Rtr2 2.4Gbit/s OLT2 RPR4 RPR8 Demonstration environment 3ms 1ms 10ms 1ms 7ms Rtr3 XC3 XC4 Rtr4 1Gbit/s 600Mbit/s

(17)

Policy-based E2E quality control

Pre-planned (DiffServe-based)

Entire services

are

degraded

without

admission control and BW management

Traffic Typical

service BW profile

g

Degradation of

entire video services

ToS=6 Voice 90kbps*(200 flows)

ToS=5 Real-time video

6Mbps*(N flows)

NRM/NRB-controlled

E2E CIR

i

d

video

ToS=0 Data 5Mbps*(140 flows)

NRM/NRB-controlled

Pre-planned (DiffServe)

E2E CIR

is assured

on-demand

Voice

and

video

services are

preserved

Sep. 21st, ‘08

(18)

Resource scheduling

S

f l

hi

l

th

t ti

d

h d li

Successful

hierarchical path computation and scheduling

Detailed

route adaptation

by C-NRM (Request 3)

Abstracted rerouting by

roll back

operation of NRB (Request 4)

Request # EP 1 EP 2 Bandwidth (M bit/s) Latency (ms)

Scheduled time frame

1 Rtr1 Rtr2 500 8 11:00 10:00 12:00 13:00 14:00 15:00 16:00 17:00 2 CPE1 EP1 300 10 3 CPE2 EP2 300 22 4 CPE3 EP3 350 10 5 CPE3 EP1 300 7

Request # Initial route selected by NRB Final assigned route (w/ assist of NRMs)

1 Rtr1-Rtr2 Rtr1-XC1-XC2-Rtr2 2 CPE1-OLT1-RPR1-RPR4-Rtr1-Rtr2-RPR8-RPR6 CPE1-OLT1-RPR1-RPR4-Rtr1-XC1-XC2-Rtr2-RPR8-RPR6 3 CPE2-OLT1-RPR1-RPR4-Rtr1-Rtr2-RPR8-RPR7 CPE2-OLT1-RPR1-RPR4- Rtr1-XC1-XC3-XC4-XC2-Rtr2-RPR8-RPR7 4 CPE3-OLT1-RPR1-RPR4-Rtr1-Rtr2-RPR8-RPR7 CPE3-OLT1-RPR1-RPR4-Rtr3-XC3-XC4-Rtr4 -RPR8-RPR7 RPR8 RPR7 RPR8 RPR7 5 CPE3-OLT1-RPR1-RPR4-Rtr1-Rtr2-RPR8-RPR6 CPE3-OLT1-RPR1-RPR4-Rtr1-XC1-XC2-Rtr2-RPR8-RPR6

(19)

Distributed messaging flow

Successful roll back

with

two-phase commit

(request #4)

Client

NRB

A-NRM

M-NRM1

C-NRM

M-NRM2

Reserve/Abort Reserve Reserve/Abort Roll-back in action Reserve/Prepared Reserve/Prepared Status Query Initial h ase Reserve/Abort Reserve/Abort Reserve/Prepared Reserve/Prepared Status Query Prepared 1 st p h Commit Commit Commit Commit phase Commit nd ₂ Status Query Committed

(20)

Agenda

Networking evolutions

Network resource virtualization for telecom operator

High-level architecture

Design of prototypes

Demonstration

Policy-based E2E quality control

y

q

y

Resource scheduling

Distributed messaging flow

Virtualization of functional modules

High-level architecture

C

h f

ti

t l

Cache function control

Conclusion

Sep. 21st, ‘08

(21)

Virtualization of functional modules

Functional modules building blocks

Load

balancing Encap Compress DPI Protocol Redundancy Firewall

security _memory

On-demand/work-flow

FC E

VPN

On-demand/work-flow

FCoE + VPN

CIFS optimization + Compress

Secured FCoE

WAN boost

p

Load balancing + SBC

VoIP media GW

Scalable

L4-SW

Sep. 21st, ‘08

(22)

Virtualization of functional modules

NRB N t k R B k Inventory Traffic Alarm Application servers SDP Configuration system

IMS NRB: Network Resource Broker_{NRM: Network Resource Manager} Function Manager

NRB _{management system}Network resource

Orchestration NRM NRM NRM NRM SOA-bus Virtualization Orchestration Data center EMS Functional modules EMS VoIP Access CPE IPTV OLT Core VoIP Access IPTV CPE OLT Si Si SiSi Functional modules Metro (Ring) Metro (Ring) P2P Video (Mesh) Router P2P Video Si Si Si Si SiSi Si Si Si Si SiSi Sep. 21st, ‘08 22 Video-conference Video-conference

technology for the future optical internetworking

2nd Workshop on Future Internet Design

Evolution of virtualization

Evolution of virtualization