0 Replies Latest reply: Dec 19, 2012 11:02 AM by 980853 RSS

    icmp poller on solaris 10: lot's of unexplained ping failed

    980853
      Hello to everybody, and if someone can help me on the following problem...

      I use the IBM tivoli netcool network manager icmp poller on a solaris sparc local zone server, and for a reason I don't understand, regularly, I have lot's of unexplained ping failed.

      Note that the poller is configured to poll about 9000 Ip address every 4 minutes. And often, some of the IP address (but generally not the same) don't reply to the icmp request for 2-10 seconds max. And it seems that the tool is not the problem because, when I test myself with the ping command on concerned IP address, I have effectively the following message for only few seconds:
      "icmp host unreacheable from gateway yvasl110" (yvasl110 is the name of the local zone server)

      I notice that the ipOutNoRoutes increases very often on this specific server:

      netstat -s -P ip

      IPv4 ipForwarding = 2 ipDefaultTTL = 255
      ipInReceives =3113915 ipInHdrErrors = 0
      ipInAddrErrors = 0 ipInCksumErrs = 0
      ipForwDatagrams = 0 ipForwProhibits = 187
      ipInUnknownProtos = 3 ipInDiscards = 3495
      ipInDelivers =4391757 ipOutRequests =3059887
      ipOutDiscards = 0 ipOutNoRoutes =117387
      ipReasmTimeout = 15 ipReasmReqds = 0
      ipReasmOKs = 0 ipReasmFails = 0
      ipReasmDuplicates = 0 ipReasmPartDups = 0
      ipFragOKs = 0 ipFragFails = 0
      ipFragCreates = 0 ipRoutingDiscards = 0
      tcpInErrs = 0 udpNoPorts = 4495
      udpInCksumErrs = 0 udpInOverflows = 0
      rawipInOverflows = 0 ipsecInSucceeded = 0
      ipsecInFailed = 0 ipInIPv6 = 0
      ipOutIPv6 = 0 ipOutSwitchIPv6 = 0

      Note that I have another same server with the same tool and same list of IP address, and I have no problem: no ping failed and ipOutNoRoutes = 0

      I have already analyzed the network connexion (and already switched on another network connexion: network card+switch) = no effect.

      I install the last Solaris patch = no effect.

      And tcp solaris parameters are the same on the 2 servers.

      So, I don't understand. :o(