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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Common causes of performance problems and outages
In case folks are interested.... Craig and I did some work in this area some years ago... Our findings appeared in FTCS 99 and are available at http://www.computer.org/proceedings/ftcs/0213/02130278abs.htm (this requires digital library access). I also have a pointer to the U-M techreport version at http://www.merit.edu/~ahuja/CSE-TR-382-98.pdf. We have continued to collect more data on this and are in the process of putting together our follow-up. It should be out soon. We'd love to get more community input and more sources of data if folks are willing to participate in our further studies... Thanks! -abha ;) On Fri, 6 Jul 2001, Avi Freedman wrote: > > In article <[email protected]> Sean wrote: > > : In roughly the order > > : 1. Network Engineers (What's this command do?) > : 2. Power failures (What's this switch do?) > : 3. Cable cuts (Backhoes, enough said) > : 4. Hardware failures (What's that smell?) > : 5. Congestion (More Bandwidth! Captain, I'm giving you all she's got!) > : 6. Attacks (malicious, you know who you are) > : 7. Software bugs (Your call is very important to us....) > > Very much disagree. Or at least, separate performance and outages. > > Outage/Instability: > > (Tie for 1st): > > 1) Shitty software from Major Router Vendors (and everyone else) > 1) Misconfiguration > a) Often caused by shitty/easy to fumble CLIs from Major Router Vendors > 2) Attacks > 3) Power failures > 4) Cable cuts > 5) (distant)Hardware failure > > Performance has been covered; the only real broadband is Universities, > and relatively few transit networks can get to network large and small well. > > Avi > >
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