1 / 13

Campus Case Studies in Implementing Advanced Services Cas D’Angelo Cas.DAngelo@oit.gatech

Campus Case Studies in Implementing Advanced Services Cas D’Angelo Cas.DAngelo@oit.gatech.edu. Preparing for Advanced Services. Gigabit ethernet migration Gateway routers Performance testing TCP tuning Multicast Security. Gigabit ethernet migration. Georgia Tech has installed 100+ ELANS

kitra
Download Presentation

Campus Case Studies in Implementing Advanced Services Cas D’Angelo Cas.DAngelo@oit.gatech

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. Campus Case Studies in Implementing Advanced ServicesCas D’AngeloCas.DAngelo@oit.gatech.edu

  2. Preparing for Advanced Services • Gigabit ethernet migration • Gateway routers • Performance testing TCP tuning • Multicast • Security

  3. Gigabit ethernet migration • Georgia Tech has installed 100+ ELANS • Implemented as a standards based VLAN • New standards such as 802.1q now available

  4. Gigabit ethernet migration • Gigabit ethernet - supports large MTU • Wire speed routing • Trying to go with IP only backbone • Never routed IPX across backbone • Appletalk is the next protocol to be eliminated

  5. Gigabit ethernet migration • Building design moving from ATM attached ethernet switches to Gigabit ethernet attached 10/100 switches

  6. Gateway routers • Redundant routers Internet 1 PeachNet ATM OC-12 ATM OC-12 SoX Gateway 2 Router Gateway 1 Router Gigabit Ethernet Gigabit Ethernet Backbone (other campus routers)

  7. Gateway routers • OSPF load balancing for backbone • Packets alternate between routers • Both advertise default route originate

  8. Gateway routers • BGP used to control ISP traffic • Prefer SoX routes • AS padding for Internet 1 traffic • Arrangement with SoX to support large MTU

  9. Performance testing - TCP tuning • Iperf: http://dast.nlanr.net/Projects/Iperf/ Tools for experimenting with bandwidth throughput and adjusting TCP window sizes • Nettest: http://www-itg.lbl.gov/nettest/ A secure, real-time network monitoring framework which includes Iperf

  10. Performance testing - TCP tuning • Autobuf: http://dast.nlanr.net/Features/Autobuf_v1.0/An auto tuning-enabled FTP client and server

  11. Multicast • Vendors still working out problems • Multivendor interoperability leaves finger pointing problems • Within last few months have fought with mbgp community issue • Great tool: Access Grid + Multicast Beaconhttp://dast.nlanr.net/Projects/Beacon/

  12. Security • Border data - Tracking flows at egress to campus • Research machines are target for DOS, must be made secure • Firewalls are being installed to ease system administration and for contracts

  13. Questions • Cas D’Angelo, Network ManagerGeorgia Institute of TechnologyOffice of Information TechnologyCas.DAngelo@oit.gatech.edu • http://bart.ns.gatech.edu/cw

More Related