Handler to receive Interface up/down traps from HP switches

-- loglog("caught a trap from host: " .. result.host)
-- dump the trap into logs (to view it in SNMP traps gui) for debugging purposes
-- dump.trap()
-- update passive service check even if there is no state change (useful for keepalive traps)
-- result.notify = NOTIFY.ALWAYS
-- set the restresult.service = "Interface status"
for k, v in pairs(trap.fields) do
 if string.match(k,'^\.1\.3\.6\.1\.2\.1\.16\.9\.1\.1\.2\.76$') then
 local message = v
 local portname = string.match(message, "port [0-9]+")
 log('Trap severity is CRITICAL, port is ' .. portname)
 result.tag = portname
 result.message = "HP switch port " .. portname .. " is in CRITICAL state"
 result.state = STATE.CRITICAL
 elseif string.match(k,'^\.1\.3\.6\.1\.2\.1\.16\.9\.1\.1\.2\.75$') then
 local message = v
 local portname = string.match(message, "port [0-9]+")
 log('Trap severity is OK, port is ' .. portname)
 result.tag = portname
 result.message = "HP switch port " .. portname .. " is in OK state"
 result.state = STATE.OK
 else
 log('something else happened')
 local message = v
 result.message = message
 end
end