If you get a response rate of 20%, it means that 80% of the send frames didn't respond within the given timeout. This is not saying that the switch is done, just that a "few" frames didn't respond correctly. The "multiping" registry setting is an old setting that is still part of the installer but that does not affect the way the pings are done.
If you see the equipment as down in such a situation then you're basicly just looking at the DOWN word and not at the reason of the down. If you want to get the DOWN word only when it's realy 100% not responding then you should change the % rule on the checks itself. -----Original Message----- From: Servers Alive Discussion List [mailto:[email protected]] On Behalf Of Schaeffer, Bruce Sent: Thursday, October 01, 2015 5:20 PM To: Servers Alive Discussion List Subject: [SA-list] False Alarms on Switch Pings I'm having trouble with false alarms on Cisco switches. Running Server's Alive Enterprise version 7.2.2638 on Windows 7. Periodically, several switches show as down. Looking at the logs, I'm seeing ping return rates of 40%, 20%, etc. These false alarms don't affect anything else that I'm monitoring, such as servers. Only switches. Then in the next cycle, they'll show as up. It's not the same switches each time. There appears to be no rhyme or reason as to which switches will alarm. It doesn't appear to be hardware related (workstation NIC or network port); otherwise other equipment would alarm as well. It doesn't appear to be the specific alarming switches as the list changes seemingly at random and if I set up a "ping -t <ip-address>" on the same workstation, nothing appears to drop. In the registry I noticed a key labeled "Ping". Within it is a key labeled "UseMultiPing", which for me is currently set to 1. I can't find documentation on this key, but was wondering of someone could explain how MultiPing works. Also, what would be the effects of changing this key or possibly adding other keys that I don't know about. This situation has my admins concerned because monitored equipment is not down, but appears to be. Any thoughts or ideas would be appreciated. Thanks. Bruce ------------------------------------------------------------------------- Bruce B. Schaeffer Systems Engineer Middlesex County College 2600 Woodbridge Ave. Room JLC209 Edison, NJ 08818-3050 Voice +1.732.906.2607 Fax +1.732.548.6814 [email protected] ------------------------------------------------------------------------- To unsubscribe send a message with UNSUBSCRIBE in the subject line to [email protected] If you use auto-responders (like out-of-the-office messages), make sure that they are not sent to the list nor to individual members. Doing so will cause you to be automatically removed from the list. To unsubscribe send a message with UNSUBSCRIBE in the subject line to [email protected] If you use auto-responders (like out-of-the-office messages), make sure that they are not sent to the list nor to individual members. Doing so will cause you to be automatically removed from the list.
