SIM 5.3 Reporting False Lost Comms

Mathew Haynes — Thu, 05 Nov 2009 05:09:30 GMT

G'day,

First time poster so unfortunately I will be asking for help rather than giving it.

We run HP SIM 5.3 with SP1 on top of a Server 2003 standard SP2 - DL380 G5. It has not been configured very well, it was basically set up and left to discover it's own devices with no extra tools running. I plan on going through and getting it up to spec but I'm very new to SIM.

Anyway, the problem comes from 2 devices which are sitting in a remote site but still on the LAN. These 2 devices are sitting in a small building connected via a 802.11g link with a high gain antenna. An ID card reader is linked back to a server in our datacenter through these devices.

The wireless g link is very reliable for a wireless connection.

HP SIM is reporting these 2 devices every hour or so as having lost comms with them - which from my tests is not true. Constant pinging works fine and the tag reader served by these devices does not drop any requests, aside from the standard <1% allowance.

After 10 minutes of lost comm's, HP SIM regains comm's and clears the event. It is set to ping 5 times with a timeout of 5 seconds. I believe it is also set to use SNMP with 1 try and a 5 second timeout. The SNMP settings are left as defaults on the devices in question.

Note that ICMP packets sent from a cmd.exe window on the HP SIM server work fine when SIM is reporting lost comms.

Also, the 2 devices do not always go offline according to SIM at the same time, it can be any combination of device A, B or both.

Is there anyway to find out more info why SIM thinks it's lost comms?

Any thoughts?

Cheers for any help you can provide,
Matt

topic SIM 5.3 Reporting False Lost Comms in Server Management - Systems Insight Manager

SIM 5.3 Reporting False Lost Comms