GMPLS Network Management: Challenges and Solutions

Transcription

1 GMPLS Network Management: Challenges and Solutions Thomas D. Nadeau Technical Leader 1

2 Fundamental Question Why is network management so important to the success of GMPLS/UCP? 2

3 Agenda Motivations and Challenges Solutions Questions Closing Remarks 3

4 Motivations and Challenges Presentation_ID 4

5 Legacy Data Reference Architecture Today Separate Layers/Separate Networks CPE Aggregation Distribution Core SDH/SONET SDH/SONET Optical ATM/FR ATM/FR PSTN Mod / TA PSTN PoP Services SDH/SONET ATM SDH/SONET ATM Optical HFC channelised / LL IP/MPLS Internet SDH Fibre Plant Optical 5

6 Next Generation Network Goals Systems Approach to Solutions Voice OSS Voice OSS Optical OSS Voice OSS FR, ATM G/MPLS FR, ATM OSS IP OSS FR, ATM OSS Optical Operational Efficiencies Increase management automation and availability using a single/unified and evolutionary approach that is standards-based. Manage and consolidate traditional and emerging disparate networks networks as one. New Services Provisioning Enable competitive differentiation and customer retention through profitable and value-added bundled services. 6

7 What the Industry is Looking for Next Generation Optical Control Plane Protocols to control and consolidate transport networks Leverage new advancements in optical technology Data optimized architectures handle unpredictable data traffic economical Improved Management Functions Fast/automated/policy-driven Provisioning Consistent Trouble-shooting. Protocols to increase providers revenue & profit New differentiated service and business models Simplified, automated operational processes & systems Future-proofed, open architectures in the tradition of the Internet 7

8 CPE Aggregation NGN IP + Optical Architecture Distribution Core ATM/FR PSTN Mod / TA PSTN PoP Services dwdm dwdm Optical HFC Ethernet / channelised / LL IP/MPLS Internet GMPLS Multi-Service optical transport 8

9 Solutions The Unified Control Plane and GMPLS Presentation_ID 9

10 Unified Control Plane (UCP) General Definition Control Plane Extends MPLS-TE OSPF-TE & IS-IS routing RSVP-TE for signaling Adds in-band & out-of-band control channel support LMP- Link Management Protocol Control Plane based on IP routing λ Labels Network and Service Management Service s Unified Control Plane Packet Labels/VPI VCI Packets/Cells SONET/SDH Wavelength Routing DWDM Transport Internetworking Operating System Forwarding Plane IP ATM Forwarding Plane Extends MPLS Labels TDM SDH/SONET DWDM Fiber Optical Based on GMPLS Technology Mgmt & Control Address OTN specific needs Physical vs. Logical Transport requirements (e.g., P&R, Explicit I/Fs, etc.) UCP protocols are often referred to as Generalized Multi-Protocol Label Switching (GMPLS) 10

11 UCP/GMPLS Keys to Success Automatic and Interoperable Optical UCP/GMPLS can only be successful if.. Management systems migrate from proprietary network circuit provisioning to automated provisioning Use distributed intelligence (for scale) Standards-based protocols (signaling, routing, link management, provisioning, ) that are interoperable 11

12 UCP Real Customer Benefits Fast Provisioning Enables end-to-end circuit setup without SP intervention reduce provisioning times Enhanced Scalability Network level: Support for thousands of nodes, links and circuits per inter-connected network Lightweight EMS: Move from centralized provisioning to distributed, node-level provisioning using signaling (e.g.: GMPLS) Interoperable vendor implementations Reduces EMS/NMS integration / interoperability issues/costs Improves provisioning/trouble-shooting capabilities/times Basic Bandwidth on Demand (BoD) capabilities as policy & billing standards mature 12

13 UCP Real Customer Benefits (Continued) OPEX savings via service provisioning reduction by due to design function elimination CAPEX savings due to less RMA (resource management & accounting) reducing engineering headcount; increased flow-through-provisioning services Capital conservation - Improve utilization of network capital investment reduced RMAs defers capital expenditures that can be diverted to support that many more services before investing Enabling direct customer access reduces operations staff for all available capabilities 13

14 UCP Real Customer Benefits (Continued (2)) Enables new transport services Shortened provisioning times Destination selection (change my A-Z connection to A-Z ) Bandwidth on demand (activate A and connect it to Z) Protection classes (Grades of Service SLA with mesh support) Reduce operations cost Reduced OSS intervention (OPEX reduction) as network is self inventorying, routing, & provisioning etc.. Multi-vendor Interoperability Enables non-transport & legacy NEs to signal for circuits as well Reduced operational costs means quicker ROI 14

15 UCP/GMPLS Keys to Success Develop end-to-end, open architecture (OIF/IETF/ITU) by driving standards in this area. Integrate IP and Optical products via control plane signaling over optical and Ethernet interfaces to deliver new services and enhance existing ones. Migrate/extend existing MPLS-based NM/OAM tools/techniques into the GMPLS space. 15

16 UCP/GMPLS Management Needs an Evolutionary Approach Drive intelligence (topology, circuit inventory and link characteristics) into the network elements with efficient updates to EMS. Retain current network circuit provisioning capabilities (topology, discovery, enhanced circuit management and operations) for backward compatibility Single integrated and interoperable embedded management solution that addresses all FCAPS areas. 16

17 UCP/GMPLS Management Needs an Evolutionary Approach (2) Deliver Obvious Benefits Need an embedded management strategy that ties things together for all FCAPS areas. Must extend existing tools/techniques to preserve investment. Allows GMPLS to leverage applications designed for MPLS. Deliver New Benefits New service features not possible today! Optical VPN Bandwidth wholesaling Reduce costs, increase revenues, address scale of growing networks 17

18 GMPLS Multi-Vendor/SP Network LSP Setup Example Router & Optical NEs belong to a single/multiple OSPF area routers share topology head-end router computes path (CSPF) and signals for LSP to destination router IB/OB Destination router accepts request Acceptance confirmed to source router LSP (data plane) setup complete NMS/OSS router GMPLS Network GMPLS Optical NNI GMPLS Optical NNI GMPLS router IP/MPLS Network Metro Access Metro Core IP/MPLS Network 18

19 Questions? Presentation_ID 19

20 Closing Thoughts Why is network management so important to the success of GMPLS/UCP? UCP/GMPLS as an enabler for NGN Standards-based common control plane needed. Capitalizes on the work already done with MPLS. Standards-based interaction between control plane, forwarding, data plane and NMS needed. Single interface across all network elements Despite all of this, a unified management solution for FCAPS is essential for success. 20

21 Arigato! 21

22 F0_7604_c1 2000, Cisco Systems, 2003 Inc. Cisco Systems, Inc. All rights reserved

23 QuickTime and a TIFF (Uncompressed) decompressor are needed to see this picture. MPLS Network Management: MIBs, Tools, and Techniques (Morgan-Kaufman, 2002) 23