Hybrid Information Centric Networkingicn/wp-content/uploads/2018/08/...• Mapping system where to keep udpated / verify Loc/ID binding • Challenges : scalability, latency for the

MiyaKohnoDistinguishedSystemsEngineer,CiscoSystems

HybridInformationCentricNetworking- Anupdate

[email protected]

Cisco Confidential 2

Agenda

• hICN おさらいと最近のアップデート

• hICN と SRv6

• Mobilityアーキテクチャの将来

• MobilityVideo配信例


現在のコミュニケーションモデル

- Security

- Mobility

- Network

§ Security – End2Endcrypto,Various/uncoordinatedsecurity

§ SessionLoadBalancing

§ Storage – Pre-PositionedCache/Storage

§ Mobility – Sub-Optimal/Anchorbased,inconsistentwithheterogeneousaccess

- ContentDistribution

- LoadBalancing

• Mobility,Content,LoadBalancing,Securityはネットワークアーキテクチャ

に組み込まれておらず、付加的に実装

à Overlay/Tunnelの蔓延


ICNモデルInformationAwareなネットワーク, NotWhere->WHAT

ANewNetworkFoundationIntegrated

toSingleLayer

§ Security – ObjectBasedSecurity,

§ IntelligentLoadBalancing- perappandateveryhop

§ Storage – DynamicStore/cachingofObjectsintheforwardingfabric

§ Mobility – Optimal,NoAnchors

§ NetworkingonNamedDataEnablerapidlossrecovery,optimalcongestioncontrol,consistentUnicast/Multicast,perapps/nameforwardingstrategy

• Mobility,Content,LoadBalancing,Security• à ネットワークアーキテクチャへの基本的な組み込み


ICNcommunicationprinciples

• Packetssay‘what’not‘where’(noaddresses)

• Pull-basedmodelcontrolledbyconsumer

• Noconnections

• Dynamicin-networkforwardingdecisions

• in-networkstorage


hICN (hybridICN)とは

hICN ICNIP

NamesLocation-dependentIdentifiersinIPaddr

Location-independentIdentifiersinIPaddr

Location-independentIdentifiersinnewpkt format

Requestrouting L4-L7endtoend L3hop-by-hop L3hop-by-hop

TransportConnection-basedSender-driven

Connection-lessReceiver-driven

Connection-lessReceiver-driven

Mobility

Security

Caching

Anchor-based Anchor-less Anchor-less

Connection/Tunnel-based Object-based Object-based

Application-layerproactivecaching

In-pathreactiveandproactivecaching

In-pathreactiveandproactivecaching

Communicationprinciples


o IPv6Prefixにより ServicesName-DataObjectの”Name”を表現

o HybridICNノード間は、通常のIPv6Forwardingo 非同期ObjectRequest:Interest➤ Response

HybridICN:ステートレスな処理

ICN

IProuter hICN Forwarder

ICN

hICN ProducerhICN Consumer

ICN

IPPacket

IProuterIProuter

hICN IPPacket IProuter

Stateless Transfer


o Anchor-lessMobilityo ステートレスなトランスポート➤MobileProducer,MobileConsumer

o Multi-PathAccesso パスの優先・非優先、スループット最適化

HybridICN:Anchor-lessエンドポイント

ICN

IProuter hICN Forwarder

ICN

hICN ProducerhICN Consumer

ICN

IPPacket

IProuterIProuter

hICN IPPacket

1

IProuter

IProuter

Mobility

ICN

hICN Producer


o ObjectRequestの集積:Responseのキャッシュ

o スコープに基づいたキャッシング:Objectクラス、タイプ、属性

o Network内でのリカバリー:PendingInterestAcknowledgement

HybridICN:On-PathCaching

ICN

IProuter hICN ForwarderhICN Consumer

ICN

IProuterhICN Consumer

ICN

2

IPPacket

IProuterIProuter

hICN IPPacket

1

hICN Producer

ICN

Caching


hICN InsertionsPoints (例)

EBH

RRH

RRH

RRH

6VPEOTNGNIPv4Core

UP

CP

vPC

6VPE

BBU CSReNSE

IPv6DomainHICNDomain HICNDomain

6VPE6VPE

ComputeResourcesCUPSextendsPGW-UPtoCRANV6onlyhICN APN

VCP-EdgeforComputeResourcesPGWforCPV6onlyAPNforhICN

WirelessAccess

HICN-Producer

VCP-Coreforcomputeresources

SPContent

HICN-Proxy

Peer

OriginServer

CS CS CS

HICNClientsIPv6

HICN-F

CS CS

HICN-F

CS CS

Producer CS

PartnerContent

Peer

OriginServer

CS CS CS


ICNThinkTank Engineering IndustryAdoption GTM(Marketing)

ICN/hICN activitiesinCisco

Research ExperimentalValidation

Prototypes/CustomerPOCs

Standards Customers(various)

Partners/Universities

Eco-partners ExternalMarComm

TradeshowsProducts/Solutions

IoT Routing&Fwd

CICNForwarder

Mobility

IoT

ICNTransportPOC(forVZ)

MobdemoatMWC

MobilityMgmt

CongestionControl

TCPoICN

Security–DDoS?(TBD)

Internet2POC

NDN(UCLA+)

CCN–MP(PARC)

ICNRG/IRTFà IETF

3GPPetal

AdoptionStrategy/Plan

ICNOpenSource

effort(Lauren)

POCDriversStandards

aftertheothertwopillars

ActivityUnderway

PrioritizationNeed

ValueProposition

Broadcom

Qualcomm

Google

Apple

Intel

Verisign

CableLabs

COMPLETE

Salesforce

Verizon

Performance

GlobalRouting

OtherSPs

ICNEdgePOC(forVZ,butnotonly)

ICNMobilityPOC

ICN /6CN Evolution


PressRelease- Verizon

https://www.theregister.co.uk/2018/03/20/cisco_verizon_hybrid_information_centric_networking/

https://newsroom.cisco.com/press-release-content?type=webcontent&articleId=1916869


IETFdrafts


Agenda


• hICN と SRv6




IPv6centric networkへ

IPv6centricnetwork• ドメインを越えたデータプレーンの統一• Native(NomoreTunnel/Overlay),Stateless,Simple• IPv4asaService,nomoreVLANasanID


IPv6providesreachability

Support5GgrowthIPv6addressessummarization

5G

5G

5G

IoTservices

Supportcontaineradoptionformicro-services

Next-GenDataCenter

Micro-services

SourceAddress

DestinationAddress

IPv6

Metro/CoreNetwork

IP

4G

xDSLFTTH

Cable

LegacyDC


SRv6forunderlay

IPv6forreach

SRv6forUnderlay Simplification,FRR,TE,SDN


SRv6- Opportunityforfurthersimplification

•Multiplicityofprotocolsandstateshindernetworkeconomics

IPv6forreach

Simplification,FRR,TE,SDNSRv6forUnderlay

AdditionalProtocoljustfortenantIDUDP+VxLAN Overlay

AdditionalProtocolandStateNSHforNFV


SRv6NetworkPrograminthePacketHeader

Locator1 Function1

Locator2 Function2

Locator3 Function3

TCP,UDP,QUIC

Locator1 Function1SourceAddress

ActiveSegment

IPv6header

SegmentRoutingHeader

IPv6payload


ComplimentaryRoles:hICN &SRv6

AnchorlessApplicationAsynchronousControlPlaneStatelessL4TransportLeverageNativeFIB

AnchorlessEndpointMobilityContentSecurityMulti-HomingAsynchronous“Multicast”

HybridICN

SRv6(SourceRouting,Segmentation)

IPv6

Multi-Path

OtherControlPlanes..

CachingRecovery

PathRecoveryEnd-pointAddressingTopologicalForwardingStateOpenSourceCommunity

Host/VM/ContainerIdentificationStandardsBasedSupportUnderlayManagementBasicServicesSupport

VTS,BGP,IGP,XTC,GTP-C,SBA

ServiceChainingSourceVectoring

SegmentIdentificationDistributedControl

Control

PathState

Forwarding

FRR


Agenda


• hICN と SRv6



© 2017 Cisco and/or its affiliates. All rights reserved. Cisco Confidential

現在のMobilityの問題

• GTPtunnel- Tunnelstate= スケーリング問題

- 高可用性提供のためにtunnelstateの複製が必要

• Anchor(GTPtunnel終端点)の集中

(Pros)移動時のセッション継続性

(Cons)トラフィック非最適性、柔軟なトラフィックスティアリング困難

低遅延アプリケーション、IoTアプリケーションへの対応困難

• アクセス技術との相互依存性

- 多様なアクセスを統一的に扱うことが困難


State– PointofFailure,PointofBottleneck

http://www.itmedia.co.jp/mobile/articles/1805/24/news143.html

https://blog.apnic.net/2018/03/07/reducing-complexity-5g-networks-using-segment-routing-ipv6/

ディジタル時代、IoT時代に舵を切るソフトバンク -「ステートの削減をしなくてはコスト上昇を避けられない」


技術候補

• CUPS• (Non-GTPparadigm)

• ILNP• ILA• LISP/ILSR• hICN• MFA

• Dataplane• IP/MPLS(Underlay)• SRv6!!

ServicesServices

Control & User Plane Separation for elastic control plane scaling and distributed User Plane. Programmable User Plane with a Transport Controller.

Mobility Controller (MC) Policy

Transport Controller(TC)

internet

FPC

TR TR

TR

TR

Scale

Low-latency

No Tunnel Overhead

Anchor-less

QoS-aware Steering

Distributed User Plane

よりプログラマブルでステートレスな Mobiledataplaneの必要性


通信事業者の将来アーキテクチャ- IntelligentEdge+DiverseAccessNetworks

5GFixedWireless 5GMobility 5GIoT 4GLTE 4GIoTFiber

IntelligentEdge

MEC SDN/NFVAI/

AutomationhICN

Networks

Services

Capabilities

Enterprise VR/AR Drones SmartCities MobileVideo SmartLighting



hICN の Mobilityへの適用

Access/mobility

mgmt (AMF)

Sessionmanagemen

t(SMF)

Policycontrolfunction(PCF)

User PlaneFunction(UPF)

(Radio)AccessNetwork

Centraldata

networkUPF

UPF UPFNon-3GPP

interworkingfunction

UE

Non-3GPPaccess

hICN

hICN

hICN

hICN

controldata

hICN

UE

hICN

hICN

5G Architecturereadiness

• Anchor lessMobility• AccessAgnostic• Nativemulti-pathcapabletransport• EdgeCaching/Computing• LatencyMinimal

i:{name1/seq1}

{name1/seq1}DATA

• Interestを再送 {name1/seq1}

{name1/seq1}DATA

i:{name/seq}

• パケット要求{name1/seq1}

i:{name1/seq1}

デバイスが新たなネットワークに接続

• ローカルなデータストアから、{name1/seq1}をreply


ID-based

• (draft-vonhugo-5gandip-ip-issues-03)

• ICN• hICN

Mobility architecturesLocator-based

• GTP-U• SRv6

ID/Loc separation

• LISP(ILSR/ILNP)• ILA• SRv6

UE#1

UE#2

UPF#1

UPF#2 UPF#4

UPF#3 DN#1

DN#2

GTP#1

GTP#3

Mappinginformation

UE#1 GTP#1ID GTP

Mapping information

UE#1 GTP#2ID GTP

UE#2 GTP#3

§ Decentralized;controlplanesig.

UE#1

UE#2

UPF#1

UPF#2 UPF#4

UPF#3 DN#1

DN#2

MappingSystem

UE#1 UPF#1ID Locator

DN#2 UPF#4... ...

nodeid#1

nodeid#2

• Decentralized;controlplanesig.

UE#1

UE#2

UPF#1

UPF#2 UPF#4

UPF#3 DN#1

DN#2

hICNFIB

/c1 UPF#1,UPF#2

LoadBal.Name Faces FWSt

/c1/c2=contentprefixes(eg.b001::/64)

/c1

/c2 /c1

/c1

• Fully distributed;forwarding planesig.

hICNFIB

/c1 UPF#2 Min.Lat.Name Faces FWSt

/c2 UPF#2 Min.Lat.

• Locatorsusedasidentifiers:semanticoverloadingthatcomplexifies mobility(anchors/tunnels)

• Lackofflexibility,complexmanagementofsynch,doesnotallowdynamicoffloadatedge

• Mappingsystemwheretokeepudpated /verifyLoc/IDbinding

• Challenges: scalability,latencyfortheverification,issuesincachingandsynchronizationofadistributedmappingsystem

• noanchors(neitherinUPnorinCP)• Nooperationforstatic/mobilecons.• latency-optimizeduserplaneupdates• access-agnosticapproach• seamlessintegrationofhetnet

IETF102資料より


Agenda


• hICN と SRv6





hICN によるMobileVideo配信

より効率的なMobileVideoの配信

• ユーザエクスペリエンス向上

• トランスポートコスト、運用コスト削減

• スケーラビリティ向上

SCALINGLIVEVIDEODISTRIBUTIONIN-PATHEDGECACHING/COMPUTING

ABRvideoplayerswhICN rateadaptation,load-balancingandtransport

hICN /IPnetwork

4KVoD &LiveABRICNserver

MonitoringAnalytics

LTE

NetworksliceshICNcontainers

eNB

• 複雑なマルチキャストプロトコルの必要なし• 外付けキャッシュの必要なし• キャッシュ管理のシンプル化• コンテントレベルのAnalytic• Mobilityに適したpullmodel(MEC-FOGservers/

origin)


DASHplayerswICNrateadaptation,load-balancingandtransport

hICN VideoArchitecture

MonitoringAnalytics

(h)ICN-enabledVideoPlayer

CLIENT1

Hetnet Access(Wi-Fi,LTEoverwire)

ACCESS2

(h)ICNForwardersandvICN(VirtualizedICNorICNinaContainer)

BACKHAUL/CORE3

(h)ICN-enabledVideoServer

SERVER4

eNB

LTE

ICN-enabledNetwork

NetworkSlices

EPC

4KVoD &LiveDASHICNServer


1) パケットロスの多いMobile Networkにおけるビデオ配信

eNB

Client Access

LTE

DASHplayerswICNrateadaptation,load-balancingandtrasport

monitoringanalytics

(h)ICN-enabledvideoplayer

Hetnet Access(WiFI,LTEoverwire)

Server

4KVoD &LiveDASHICNserver

ICN-enabledvideoserver

SUHD:ConsumerVideo

1. TCPに比較して高品質・高スループット2. Wifiネットワークにおいて WirelessLoss

DetectionandRecovery(WLDR)3. ビデオ視聴中の Wifi/LTESeamlessMobility

Handover

consumer

access point

next: 3

expected: 3

Interest

3

new expected:

3

+ 1 = 4

next: 4

expected: 4

Interest

4

next: 5

expected: 4

Interest

5

next: 6

expected: 4

Interest

6

Loss

Detected

EWLN(4,6)

new expected:

6

+ 1 = 7

WLDR


2) 複数アクセス方式の多重

eNB

Client Access

LTE


monitoringanalytics


Hetnet Access(WiFI,LTEoverwire)

Server


ICN-enabledvideoserver

SUHD:ConsumerVideo

ICNによるHetnetの拡張1. Singlepath-->Multipath2. 動的な per-packetロードバランシング (min

maxloadICN)(Connectionbasedトランスポートの場合、persegmentロードバランシング)

I1(prefix/v1/segment1/seq1)I2.prefix/v1/segment1/seq2)…

ICNdynamicper-packetLBvsper-segmentstaticLB


3)コンテンツのスケーリング

eNB

Clients Access

LTE


monitoringanalytics


Hetnet Access(WiFI,LTE,Ethernet)

Server


(h)ICN-enabledvideoserver

1Gbps

Eth

Backhaul/Core

ICNforwardersandvICN(ICNinacontainer)

cache

キャッシュとマルチキャスト1. 高速ForwarderVPPによるICN実装2. 品質に基づいた、caching/trafficoffload3. ネットワークと協調したABRと multicast

HybridICNdemo

CiscoLiveにおけるhICN demoICNteam@CLUS’17GiovannaCarofiglio,DistinguishedEngineer,[email protected],Prinicipal Engineer,[email protected],SoftwareEngineer,[email protected]


35Presentation ID


まとめ

• 増え続けるMobileVideoTrafficへの対処要請

• MobilityArchitectureのシンプル化要請

• Edge/DistributedComputing/Storageトレンド

• hICN および仮想化/ネットワークスライスによる共存可能性

技術的合理性は十分に高い

IndustryAdoption,EcoSystemBuildingに向けて協調しましょう

Documents

Hybrid Information Centric Networkingicn/wp-content/uploads/2018/08/...• Mapping system where to keep udpated / verify Loc/ID binding • Challenges : scalability, latency for the