Optical Networking Services
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The document discusses optical networking services and applications. It outlines Tal Lavian's research focus on building service composition and infrastructure for optical networks. It then provides an agenda covering optical networking technologies, challenges, service solutions like optics combined with Ethernet, and potential killer applications such as large data exchange and content networking.
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Optical Networking Services
- 1. Optical Networking Services Tal Lavian tlavian@eecs.berkeley.edu Some slides and most of the graphics are taken from other slides Optical Networking Services 1
- 2. Research Direction • The research topic that I’m looking after is Applications and Services Infrastructure for Optical Networking • What is a service composition and how we build a service? What building blocks are needed and how cooperating and brokering should work in optical infrastructure and among providers? • A good starting point can be to look into some applications and pick few (2-3). We can look into the TeraGrid and SAN, and we should see how the dynamic behavior of emerging optical networking technologies could benefit the applications • We need to look all the way from the problem, solution, application, architecture, services, and how this is implemented and what services are needed in each layer Optical Networking Services 2
- 3. Agenda Optical Networking Three networks: LAN, MAN and WAN Leading technologies: ASTN, Smart l, ASON, MPLS, OE, Challenges Service Solutions Killer Applications Summary Optical Networking Services 3
- 4. Optical Networking Services 10/25/14 Slide: 4 Three networks in The Internet Long-Haul Core (WAN) Local Network (LAN) ASON ASON Metro Core Backbone ASON PX Access OP E ASON OPE Metro Network (MAN)
- 5. Optical ASTN (Automatic Switch Transport Network) 3. Applications (SA Servers) ASON : End-to-End Dynamic Connectivity Optical Networking Services 10/25/14 Inter-domain I/F Slide: 5 Management System UNI Proxy Signaling Client Signaling Client Traffic OCC Optical Switch UNI OCC OCC + Service Agent (SA) 2. Adds Layer for Service Management Creation •Service Activation •Service Assurance •Customer Care and Billing •Service Control •Policy Services • Mesh Network Planner • Mesh Optimizer • Mesh Capacity Planner Tools Service- Ware Network Mgmt •Fault Detection •Fault Isolation •Fault Correlation •Monitoring MPLS path establishmen t NNI OSPF routing Optical Routing Signaling Layer Topology discovery OCC (IOC) Agile Optical Network l’s, OC-N, STS-N granularity
- 6. Optical Ethernet (OE) Goal Ethernet Transport (L2) over Optical networks (L1) Benefits Optical agility and reliability Ethernet simplicity and efficiency Seamless transport from LAN to MAN and to WAN RPR Standard (Resilient Packet Ring) IP •Ring MAC protocol •Ethernet over rings •IEEE 802.17 Ethernet OC-192 10GigE Standard •GigE extension •Ethernet over OC-192 •IEEE 802.3ae Optical Networking Services Slide: 6
- 7. Agenda Optical Networking Challenges Bandwidth provisioning Data transport Enterprise Networks QoS Network Heterogeneity Service Solutions Killer Applications Summary Optical Networking Services Slide: 7
- 8. TThhee MMeettrroo BBoottttlleenneecckk Other Sites Access Metro End User Access Metro Core Ethernet LAN Optical Networking Services 10/25/14 Slide: 8 OC-192 DWDM n x l DS1 DS3 LL/FR/ATM 1-40Meg OC-12 OC-48 OC-192 IP/DATA 1GigE 10G 40G+
- 9. Challenge 1: Bandwidth Provisioning Network congestion LAN access to MAN Fibers in MAN and WAN Insufficient use: 50% on lighting Inefficient use: wavelength under load Lack of mechanisms Dynamic setup User intelligence Optical Networking Services Slide: 9
- 10. Challenge 2: Data Transport Connectivity Packet Switch Circuit Switch Voice-oriented data-optimized Ethernet TCP/IP SONET ATM Network use Network uses LAN Metro and Core Advantages Advantages Efficient Simple Low cost Reliable Disadvantages Complicate High cost Disadvantages Unreliable Efficiency ? Reliability Optical Networking Services Slide: 10
- 11. Challenge 3: Enterprise Networks Network security Encrypted communication Selective routing Network efficiency Fast transport Extensible intranet and extranet Dynamical connection and route setup Optical Networking Services Slide: 11
- 12. Challenge 4: QoS Guarantee The Internet has rapidly increasing bandwidth With the help of optical transport With high-speed router and switches However, it does not provide server guarantee Throughput Delay Jitter Reliability Priority Optical Networking Services Slide: 12
- 13. Challenge 5: Network Heterogeneity The Internet is fragmented in structure LAN, MAN and WAN in terms of area Actual domains operated by network service providers Network Service providers Support a variety of L1-7 protocols Realize data transport in their own ways Control network by different methods and technologies Interface problems Device interface: UNI, NNI Layer-to-layer: IP QoS to Ethernet CoS Switching: Ethernet to MPLS, RPR to MPLS Optical Networking Services Slide: 13
- 14. Agenda Optical Networking Challenges Service Solutions Optics + Ethernet Smart bandwidth Flexible VPN QoS Network Coordination Killer Applications Summary Optical Networking Services Slide: 14
- 15. Solution: Optics + Ethernet Ethernet Transport •Data efficiency •Simple and scalable Optical Networking Services 10/25/14 Slide: 15 OO ++ EE Optical Networks •Huge bandwidth •Fast and reliable LAN MAN Simple Fast Reliable
- 16. Scenario 1: City Network Core Backbone SSeerrvviiccee PPOOPP PPOOPP RPR Ring RPR Ring Optical Networking Services Slide: 16 CCuussttoommeerr AA CCuussttoommeerr PPrreemmiissee VViirrttuuaall RRPPRR RRiinngg PPOOPP Core IIOOFF CCuussttoommeerrss AA,, CC CCuussttoommeerr BB CCuussttoommeerr AA,, BB CCuussttoommeerr CC CCuussttoommeerrss BB,, CC RPR Ring RPR Ring RPR Ring
- 17. RPR Ring Optical Networking Services Slide: 17 Storage Service Provider FC SW Long Haul 1100GGiiggEE Raid Controller OXC LAN Switch Servers OXC Router 10 To other SAN islands Users Public Network l1-lx l1-lx Gateway Router Scenario 2: Storage Area Network (SAN) 10 10 10 10 10 10 l1-lx
- 18. Optical Networking Services 10/25/14 Slide: 18 Smart Bandwidth Bandwidth on Demand Schedulable bandwidth provisioning Tunable bandwidth allocation Dynamic optical links and wavelength establishment Load Balance Bandwidth fairness Traffic re-route Use differentiation Traffic: sources and destinations User: how much you pay, privilege Application: medical, science computing Content: video streaming, 3D games Base Technologies OE: RPR, 10GigE ASON MPLS/GMPLS Content networking
- 19. Ethernet Header Payload Optical Networking Services 10/25/14 Slide: 19 Flexible VPN •Protocol Identifier (0x8100) •Priority (per 802.1p) VLAN_ID (12 bits) 802.1Q Tag OE Header TLS Tag Customer Ethernet Frame Various needs L1: Optical VPN L2: Ethernet 802.1Q VLAN L2: Ethernet Transparent LAN L2+: MPLS-based VPN L3: IP VPN L4+: Content VPN Intelligent Control VPN on demand Dynamic join/drop Route adjustment Use differentiation Enterprise: SBC, Sprint, AOL User group: discussion App content: games, video conference Base technologies ASON Ethernet MPLS/GMPLS IPVPN Content networking SP Ethernet Header MPLS Labels End-User Ethernet Frame Label CoS TTL
- 20. Optical Networking Services 10/25/14 Slide: 20 Coordination of Network Controls Mapping IP2OE: IP control to Optical Ethernet control OE2M: Optical Ethernet control to MPLS control NCIM: network interface mapping UNI NNI Use differentiation Network providers: carriers Service providers: ISP Base technologies IP ASON Ethernet MPLS/GMPLS
- 21. Optical Networking Services 10/25/14 Slide: 21 QoS (Quality of Service) Mechanisms L1: wavelength protection L2: Ethernet CoS IEEE 801.p priority levels L2+: MPLS CoS L3: IP QoS Diffserv Intserv Use differentiation Network providers: carriers Service providers: ISP Applications Content Base technologies IP Intserv and Diffserv ASON Ethernet MPLS/GMPLS
- 22. Optical Networking Services 10/25/14 Slide: 22 Agenda Optical Networking Challenges Service Solutions Killer Applications Summary
- 23. Large-volume Data Exchange Optical SAN Backup on demand Disaster Recovery Fast route to restore data after the disaster Alternate routes to bypass the network in a disaster Optical Networking Services Slide: 23
- 24. Optical Networking Services 10/25/14 Slide: 24 Content Networking Content enabling extensions Content VPN Content Caching Content Multicasting Application scenarios Video teleconferencing Video on demand Streaming media
- 25. Optical Networking Services 10/25/14 Slide: 25 Distributed Server Groups Servers grouped in the Internet In SAN, data storage servers In Web, HTTP servers In Media, A/V media streaming servers In Grid, supper computing servers Application scenarios Global Load Balance Server load fair distributions Grid Computing Media treatment: CT diagnoses CAD: fighter concurrent design
- 26. Optical Networking Services 10/25/14 Slide: 26 Agenda Optical Networking Challenges Service Solutions Killer Applications Summary
- 27. Optical Networking Services 10/25/14 Slide: 27 Summary Optical transport brings abundant bandwidth Efficient use of bandwidth becomes crucial Network Services enable Use network flexibly and transparently Add customized intelligence Killer Applications night be OVPN or any other dynamic bandwidth provisioning
- 28. Optical Networking Services 10/25/14 Slide: 28 Backup
- 29. Optical Networking Services 10/25/14 Slide: 29 Resilient Packet Ring (RPR) A winning combination “SONET/DWDM” + Ethernet Ring MAC Protocol Packet Add/Drop/Pass Efficient Multicast/Broadcast Effective Use of Bandwidth Spatial re-use Ring Protection Fast and reliable layer 2 protection Topology Discovery Connectionless route discovery Control Access Protocol Ensures fair access to ring BW Class of Service IEEE 802.1p IEEE RPR
- 30. 10 Gigabit Ethernet (10-GigE) An immediate extension of GigE from LAN to LAN Optical Networking Services 10/25/14 Slide: 30 and WAN Same Ethernet MAC protocol Same frame format with the same minimum and maximum size Fiber-only IEEE 802.3ae Standard 10GEA: 10 GigE Alliance IP Ethernet OC-192
- 31. • MPLS/GMPLS is the emerging switching protocol in optical core networks • Long-range VPNs can be established by MPLS labels SP Ethernet Header Optical Networking Services CE CE 10/25/14 Slide: 31 MPLS and Long-range VPNs Backbones MPLS/GMPLS VPN A VPN B VPN C VPN D VPN A VPN B VPN C VPN D PE P E PE CE CE CE CE CE CE CE P P P P CDeEv -i cCeustomer Edge PE - Provider Edge Device PD e- vPicroevider Internal CE MPLS Labels End-User Ethernet Frame Label CoS TTL
Editor's Notes
- Nortel’s optical signaling network is built over G.ASTN Control Plane using Preside ServiceWare & OSA Clients. It has 3 basic components: The physical control plane made up of interfaces and controllers that are overlaid on top of the existing optical traffic plane. This provide the pysical medium to interconnect all the network elements in the network. The preside ServiceWare layer for service management and creation. This layer takes care of: Service Activation Service Assurance Customer Care and Billing Service Control Policy Services It will also provide the platform for the tools needed to efficiently design and maintain the network including: Mesh Network Planner Mesh Optimizer Mesh Capacity Planner Finally, Preside will also continue to provide leading edge network management functionalities including: Fault Detection Fault Isolation Fault Correlation Alarm Monitoring Network inventory 3. The final component is the applications the will be created to take advantage of the new network capabilities including bandwidth-on-demand, optical VPNs and bandwidth trading.
- Enterprise employees have been able to communicate across their Local Area Network (LAN) without much concern over format or rate; Ethernet 10Bt and 100Bt are common in almost all enterprises. The enterprise bottleneck to the Wide Area Network (WAN) has always been constrained to the traditional voice telecommunication rates of DS0 (64Kb/s), DS1 and on rare occasions DS3. Format conversion and adaptation is required for any data communication beyond the LAN. The service provider is seen simply as a “middleman”, providing network connectivity with no value-added content, leaving them susceptible to customer churn as lowered priced offerings become available. Bandwidth capacity has been increasing in the service provider WAN as OC-48 and OC-192 optical backbones have been deployed. Bandwidth has also been increasing in the enterprise LAN as they have deployed Fast Ethernet and 1G Ethernet connections in their corporate networks. A bandwidth bottleneck still exists, however, at the connection between the LAN and the WAN, the Metropolitan Area Network (MAN).