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SUMMARY:FEC killed the cut-through switch - Omer Sella (Computer Lab)
DTSTART:20180816T140000Z
DTEND:20180816T143000Z
UID:TALK108103@talks.cam.ac.uk
CONTACT:Marco Caballero
DESCRIPTION:Abstract: Cut-through switches provide lower latency at the co
 st of complexity. New Ethernet speeds (25\,50\,100\,200\,400 Gbps) use Ree
 d-Solomon Forward Error Correction to mitigate the assumed bit error rate 
 of ~10E-6 and bring it to ~10E-15. The use of FEC at the physical layer re
 quires additional framing which may not be aligned with frames from the up
 per layer\, resulting in latency and its jitter.\nThe latency mechanism is
  explained\, and it is shown that this may degrade the performance of a cu
 t-through switch to that of a store and forward switch.\n\nBio: I am a phd
  student at the computer lab. After submitting my thesis "on the Lowenheim
 -Skolem-Tarski number of the equi cardinality logic" for an M.Sc. in mathe
 matics (logic and set theory) I joined Mellanox\, where I worked on algori
 thms\, including the Mellanox implementation of the Reed-Solomon decoder. 
 Part of my work was to represent the company at the IEEE 802.3 working gro
 up.
LOCATION:LT2\, Computer Laboratory\, William Gates Building
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