You might want to share your Junos version too Being an EX, follow up Graham's suggestions with:
show log messages (filtered down to times during the event) show spanning-tree bridge (check Time since last topology change/number of changes - this is usually a culprit in pegging CPU) On 8 Nov 2013, at 10:57 am, Graham Brown <juniper-...@grahambrown.info> wrote: > Hi Sam, > > 'show chassis routing-engine' and 'show system processes extensive' are two > commands to start with, when investigating this issue. > > The second command will show you what process is consuming resources etc. > > HTH, > Graham > > > On 8 November 2013 13:51, Samol <molas...@gmail.com> wrote: > >> Hi All, >> >> CPU on EX4200 run up to 100% for a period of time and I have not yet found >> what caused this. Based on your experiences, what are the things that can >> cause this and what are the commands to check this ? >> >> Thanks, >> Sam >> _______________________________________________ >> juniper-nsp mailing list juniper-nsp@puck.nether.net >> https://puck.nether.net/mailman/listinfo/juniper-nsp >> > > > > -- > Graham Brown > Twitter - @mountainrescuer <https://twitter.com/#!/mountainrescuer> > LinkedIn <http://www.linkedin.com/in/grahamcbrown> > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
