A work around would be to run the check every 4 minutes -- the arp entry won't time out then
(It takes our boxes less than a milisecond to respond to an arp, 397ms would imply to me that something else is going on -- isdn link reaquiring etc) -- Paul Weaver Systems Development Engineer News Production Facilities, BBC News > -----Original Message----- > From: Drew Weaver [mailto:[email protected]] > Sent: 27 March 2009 12:25 > To: [email protected] > Subject: [Nagios-users] Check-ping Vs. Mac address table expiration > > A very small number of hosts on my network serve important > roles but aren't always in the MAC address table of the > switch they're connected to. Their MAC address assignment > gets timed out by the default (i think its 5 minutes) because > no data has been sent to them in that amount of time. > > For whatever reason, no matter what I do it seems like > check-ping always thinks there is a problem. > > The response from the rarely used host looks like: > > Pinging 192.168.1.8 with 32 bytes of data: > Reply from 192.168.1.8: bytes=32 time=397ms TTL=63 Reply from > 192.168.1.8: bytes=32 time<1ms TTL=63 Reply from 192.168.1.8: > bytes=32 time<1ms TTL=63 Reply from 192.168.1.8: bytes=32 > time<1ms TTL=63 > > 397ms because the switch has to do ARP, etc... > > Any suggestions how I can avoid this? > > So far i've tried adding -p 5 to the check-ping in hopes that > it would somehow use the average of the 5 pings. > > thanks, > -Drew > > > -------------------------------------------------------------- > ---------------- > _______________________________________________ > Nagios-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/nagios-users > ::: Please include Nagios version, plugin version (-v) and OS > when reporting any issue. > ::: Messages without supporting info will risk being sent to /dev/null > ------------------------------------------------------------------------------ _______________________________________________ Nagios-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
