On Thu, 2009-04-23 at 11:46 -0500, Les Mikesell wrote:
Craig White wrote:
I am interested in a comparison with Zenoss - but wait until you know your way around opennms. Just ask on the opennms list if it doesn't do something you expect.
admittedly, this analysis is less than 24 hours after installation but...
Zenoss and OpenNMS seem to be scratching similar but different itches.
In spite of the S in SNMP there is nothing simple about network management, so the overall goal of the frameworks will be to make sense out of your network and monitor for problems, keeping a history of some of the values and presenting a nice user interface. It is a complex problem so different approaches will probably have different good and bad points.
---- OK, I shut down OpenNMS and started up Zenoss again and noticed that the connected devices actually do show up on my 8 port managed Linksys POE switch...hmmm
So I dig a little further with snmpwalk and have come to realize that "IF-MIB::ifAlias" is where these values are returned from snmpwalk which is populated with values from my Linksys switch but not the Dell PowerConnect 6248, where they are all returned as an empty string.
So it occurs to me that OpenNMS is more adept at tracking layer 2 than Zenoss.
One thing that I notice that is different is that the Linksys reports each port with a different sequential MAC address where the Dell switch reports each port with the same MAC address.
I snmpwalk the Dell switch and grep for the IP address or the MAC address of one of my servers and get nothing. ;-(
So I gather that I either have to figure out how to get the Dell switch to capture the data for the connected device so it returns to me via an snmpwalk or wait until Zenoss starts crawling through the various network layers to create the connection link as it currently does in OpenNMS.
Craig