A Framework for Internetworking Heterogeneous High-Performance Networks via GMPLS and Web Services Xi Yang, Tom Lehman Information Sciences Institute (ISI) University of Southern California (USC) HONET, Charlotte NC September 7, 2006

2Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks Outline High-performance internetworking GMPLS based control plane (GMPLS-CP) and the DRAGON solution Heterogeneous high-performance internetworking framework Web services based control plane (WS-CP) Conclusions

3Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks Today’s Internet relies on layer-3 (IP) networking –Simple, ubiquitous, scalable, failure-tolerant … –Best-effort, congested, not for high-performance apps. … High-performance networking leverages dedicated virtual-circuit services through other layers –Layer 1, layer-1.5, layer-2: WDM, SONET, ATM, Ethernet –Dedicated, high-capacity, low-latency, low-jitter, low-cost Future Internet will provide hybrid best-effort IP and multi-layer dedicated virtual circuits –Enough options and tradeoffs in price, scalability and performance to satisfy varying application characteristics –Aligned with Internet’s evolutionism philosophy High Performance Networking

High Performance Inter-networking Real-world high-performance networks –NLR, Abilene, HOPI, ESnet, USN, DRAGON, Cheetah … –Limited footprint, bandwidth, users … Future global high-performance internetworking environment  Alliance of high-performance networks –Extending reach of individual networks –Lease and exchange of bandwidth –Traffic detour in emergency; and persistent mutual protection Goal of high-performance internetworking –Common shared high-performance network infrastructures –Shared control intelligence under common service model 4Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

HPN Internetworking Challenges High-performance networking requires control plane –Dynamic, end-to-end services; Fast, automated provisioning –Data plane and management plane are not enough Heterogeneous internetworking environment –Diverse data plane technologies; Services at different layers IP/MPLS; Ethernet VLAN; SONET … –Administrative barriers Policy restriction on exchange of routing and signaling information… Internetworking option I – Unified control plane –Tight coupling – Routing and signaling interoperability –Generalized Multi-Protocol Label Switching (GMPLS) A true multi-layer heterogeneous networking solution 5Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

DRAGON – A GMPLS Based High- Performance Networking Project NSF funded program –Dynamic Resource Allocation via GMPLS Optical Networks (DRAGON) –Testbed deployed in the Washington DC region Research focused on multi-layer, multi-domain high- performance networking GMPLS based control plane –Dynamic provisioning across heterogeneous network technologies Fiber (FSC), Lambda (LSC), SONET (TDM), Ethernet (L2SC), Packet (PSC) Multi-layer Traffic Engineering (TE) –Open Source Software –Interdomain Provisioning (routing, path computation, signaling) –Authentication, Authorization, Accounting (AAA) and Scheduling 6Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

DRAGON GMPLS Inter-Domain Service Provisioning Multi-layer resource states, time schedule and AAA policies are exchanged among control-plane entities.  peering domains look into each others Multiple constraints are used in joint to generate resources allocation and policy decisions.  inter-domain collaboration in path computation Actual service provisioning – virtual circuit setup  signaling across domains (contiguous or stitching)  resource allocation and policy enforcement GMPLS routing, path computation GMPLS signaling 7Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

Beyond GMPLS – A Heterogeneous Inter- networking Framework 8Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks GMPLS is an option, not a limitation –Many networks do not support GMPLS, e.g., Abilene, DoE ESNet –Some networks only have a management plane (no control plane) –GMPLS Control Plane (GMPLS-CP) needs tight coupling which is not allowed by many networks Option II – Shared intelligence btw control planes –Web Services based Control Plane (WS-CP) – loose coupling –A Web services wrapper layer for existing network control and management planes. –Core intra-network functions unchanged; inter-network enhancements –Web services are simple, standard with lots of handy tools. –Service oriented architecture (SOA) and security infrastructure (WSS)

Heterogeneous Internetworking Framework – Architecture Idea – All participating control planes must have a common set of topology discovery, routing, path computation and signaling functionality. Methodology – Translate the proven GMPLS-CP technologies into WS-CP counterparts in web services notations. 9Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

WS-CP Structure 10Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks

Conclusions 11Yang & Lehman A Framework for Internetworking Heterogeneous High-Performance Networks HPN’s of the World, Unite! HPN provisioning will best be via control plane. Any control plane for multi-layer multi-domain heterogeneous networking should support topology discovery, routing, path computation and signaling as GMPLS-CP does. WS-CP enables loose inter-network coupling and implements the GMPLS-like functionalities around Web services. The proposed heterogeneous internetworking framework supports both GMLS-CP and WS-CP. The latter will be more widely accepted.