1 / 9

Service Independent Access Points (SIAP) to Optical Wide Area Networks

Service Independent Access Points (SIAP) to Optical Wide Area Networks. Joseph B. Evans, Victor S. Frost, Gary J. Minden Information & Telecommunication Technology Center University of Kansas evans@ittc.ukans.edu http://www.ittc.ukans.edu/ Gigabit Networking Workshop 29 March 1998.

maxine-castillo
Download Presentation

Service Independent Access Points (SIAP) to Optical Wide Area Networks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Service Independent Access Points (SIAP)to Optical Wide Area Networks Joseph B. Evans, Victor S. Frost, Gary J. Minden Information & Telecommunication Technology Center University of Kansas evans@ittc.ukans.edu http://www.ittc.ukans.edu/ Gigabit Networking Workshop 29 March 1998

  2. Motivation • Objective • develop extremely high speed (100+ Gbps) switching • support multiprotocol switching • SONET frames, ATM cells, frame relay, IP datagrams • support wide area networks • Why? • develop technologies for future extremely high speed networks • provide flexible high speed transport for large traffic volumes of different types and with varying requirements

  3. Some Assumptions • Small address space • optical correlation expensive • Large frames • for TDM systems, matching decision times relatively long • for WDM systems, tuning times relatively long • Significant portions of datapath must be optical • electronics too slow for datapath • portions of control path may be electronic

  4. Overview of Architecture

  5. SIAP Protocols

  6. Protocol Engine • Used to convert between existing networking services and the O-WAN transmission protocol • Introduces direct support for multiple higher layer protocols at the bit transport layer • bit sequences within the optical framing structure identify the particular service protocol engine (switch, router, etc.) to use • Simplifies implementation and supports high speeds • direct demultiplexing to upper layer protocol engines avoids unnecessary processing and queuing delays

  7. Optical Processor • Used to encode transmission frames, and select and decode received frames utilizing high capacity (up to 10 Gbps) optical processing • Provides the mechanism by which a flow is encapsulated and its associated framing fields are processed • Supports datapath, control, and management functions such as framing, address/protocol identification, scrambling and descrambling, and error control

  8. Link Quality Estimator • Used to estimate signal quality on each of many wavelengths (8-16 wavelengths) for OA&M functions • minimize complexity and cost of management overhead for support of multi-wavelength systems

  9. Other Components • WDM Add/Drop Multiplexers - Used to select a single wavelength for further processing from a received WDM signal or inject a new wavelength into a transmitted signal • Cienna 16  system • Protocol-specific engines - Equipment that transmits and receives SONET, ATM, IP or other networking service protocols • Alcatel SONET ADMs • FORE/Nortel ATM switches • Cisco 12000 series routers

More Related