Lecture 21 22

Lecture 21 22 - EE 555 Spring 2009 Broadband Network...

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Unformatted text preview: EE 555 Spring 2009 Broadband Network Architectures 4.2 Optical Switches Prof. John Silvester Switching Levels Switching Levels FXC Fiber switching (for redundancy/reliability FXC OXC Fiber switching (for redundancy/reliability) Waveband switching (L,C) WXC Wave switching DXC WDM mux Circuit switching RTR SW Packet Switching usc-den-ee555-spring 2009 4.2 Optical switches and routers 2 SW Granularity of Switching Granularity of Switching All optical switching at packet speeds is not really feasible today. Usually have the control portion done in electronics but the data path stays in optical domain. Slot Switching Packet Switching (interesting variant called slot switching in which the same slot on all wavelengths have same destination) Burst Switching Flow Switching usc-den-ee555-spring 2009 4.2 Optical switches and routers 3 Large Opto-electronic Switch Large Opto electronic Switch usc-den-ee555-spring 2009 4.2 Optical switches and routers 4 From: High Performance Switches and Routers, Chao and Liu, Wiley, 2007. Key Challenge in Optical Packet Switching How to Buffer?...
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This note was uploaded on 12/22/2010 for the course EE 555 taught by Professor Silvester during the Fall '08 term at USC.

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Lecture 21 22 - EE 555 Spring 2009 Broadband Network...

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