Gigabit Ethernet Dr. Khalid Salah Information and Computer Science Department King Fahd University of Petroleum and Minerals

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Presentation transcript:

Gigabit Ethernet Dr. Khalid Salah Information and Computer Science Department King Fahd University of Petroleum and Minerals

October 2001K. Salah2 n Why GbE? n ATM vs. GbE Conventional Wisdom? n Scalability of GbE? n Is 10 GbE just the beginning? n ATM vs. GbE n Deployment of 10 GbE u 80/20 rule!! n Any interesting research ideas?

October 2001K. Salah3 WW LAN Market Hubs and Switches

October 2001K. Salah4 Why Gigabit Ethernet?

October 2001K. Salah5 Primary Drivers

October 2001K. Salah6 Conventional Wisdom

October 2001K. Salah7 Conventional Wisdom – now!

October 2001K. Salah8 Conventional Wisdom – 1994

October 2001K. Salah9 Conventional Wisdom – now!

October 2001K. Salah10 Is GbE Ethernet all over again? n Yes!!! A Thousand Times Yes. u Same frames u Same Knowledge u Same Infrastructure u Multiple vendor support u Low cost, interoperable u Simple, easy migration u Same network management philosophy u Very few new things to learn u Just the next step in Ethernet

October 2001K. Salah11 Scalability of Ethernet

October 2001K. Salah12 Does the train Stop?

October 2001K. Salah13 ATM vs. GbE

October 2001K. Salah14 ATM vs. GbE ATM vs. GbE

October 2001K. Salah15 ATM vs. GbE

October 2001K. Salah16 ATM vs. GbE

October 2001K. Salah17 How about QoS? n ATM wins, but wait! u You need ATM all the way to the desktop u Most of LAN traffic is IP u With 1GbE PC-to-Switch, you have 2G bps BW to run any delay sensitive traffic. u MPLS, RSVP, and 802.1p are narrowing the QoS gap.

October 2001K. Salah18 Deployment of 10 GbE LAN:  both service provider and enterprise MAN:  both dark fiber and DWDM WAN:  Attachment to WAN access equipment at edge of OC- 192 infrastructure

October 2001K. Salah19

October 2001K. Salah20

October 2001K. Salah21

October 2001K. Salah22

October 2001K. Salah23

October 2001K. Salah24 Research Ideas? n Yes!! u Performance Study u Jumbo Frames u QoS u Etc.

October 2001K. Salah25 Summary n GbE is the most important new technology n GbE is very scalable n 10 GbE pt-to-pt will be 40 km over SMF n GbE is a switching technology, not a shared media. n GbE is winning (won) the war over ATM