volatile state stalking - snmp traps service notifications
Noah Leaman
noah at mac.com
Thu Mar 4 06:21:36 CET 2004
I might be missing something, or going about this all the wrong way but
here I go...
I am trying to set things up so that for each router/switch host I have
defined (hundreds) I only need to define one Link Up/Down Trap service
for each one. I am using SEC to correlate the traps as they are
received so that only the important traps are ever sent to nagios (via
external commands). So the tricky thing here as I see it is that the
"link up events" and the "link down events" for all the various
interfaces on any given router could occur at any time and in any
order. This is a problem for notifications... I cannot get anymore UP
notifications after there has been a "recovery" already. For example:
[1078358543] PROCESS_SERVICE_CHECK_RESULT;router-a;Up/Down
Trap;2;Interface Serial5/2 is down, Keepalive failed
[1078358626] PROCESS_SERVICE_CHECK_RESULT;router-a;Up/Down
Trap;2;Interface Serial8/3 is down, Lost Signal
[1078358742] PROCESS_SERVICE_CHECK_RESULT;router-a;Up/Down
Trap;0;Interface Serial8/3 is up
[1078358846] PROCESS_SERVICE_CHECK_RESULT;router-a;Up/Down
Trap;0;Interface Serial5/2 is up
I have enabled is_volatile and set stalking_options to be o,w,c,u and
so I get the first 3 notifications, but not the 4th (I assume because
nagios thinks the service has recovered). Here is the service
definition:
define service {
service_description Up/Down Trap
host_name router-a
check_command check_dummy
max_check_attempts 1
active_checks_enabled 0
passive_checks_enabled 1
is_volatile 1
stalking_options o,w,c,u
contact_groups admins
parallelize_check 1
obsess_over_service 1
check_freshness 0
notifications_enabled 1
event_handler_enabled 1
flap_detection_enabled 1
process_perf_data 1
retain_status_information 1
retain_nonstatus_information 1
check_period 24x7
normal_check_interval 5
retry_check_interval 1
notification_interval 0
notification_period 24x7
notification_options w,u,c,r
}
How do you all address the issue of trap monitoring when you want
notifications for them?
--
Noah
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