Is there any way, using SNMP objects, to get an accurate value of when an interface changed status? If the ifLastChange object is based on the sysUpTime object and the 32 bit counter has rolled over, the time difference will be inaccurate. Even if you use snmpEngineTime instead of sysUpTime, you could still have inaccuracies. It may not be that big of a deal, but I was just wondering if there is a 100% accurate way to determine how long an interface has been down. Thanks.
