Network Monitoring using HostMonitor

ravik · Post by **ravik** » Tue Jul 01, 2003 2:52 pm

Hi
I am evaluating to see if we could utilize hostmonitor features to monitor or Cisco network gear. I am aware that hostmonitor can be setup to test periodic pings against a device and alert upon ping failures. I am looking into see if we can do more than just ping probes. I want to know if via GUI or scripting I can peridically poll various MIB variables to gather statistical data. I then want to use this data and use it for capacity planning. For example, I want to poll bits/sec MIB variable on a router serial interface every 15 seconds for 24 hours and write this to a file a file and then draw a graph from this data.

Can hostmonitor do SNMPwalk, SNMPget, SNMPset commands and also recv SNMP traps from Cisco network gear.

Please let me know
Let me know if any questions

Tx
Ravi

KS-Soft · Post by **KS-Soft** » Tue Jul 01, 2003 10:19 pm

Hi Ravi,

Yes, its possible. You may use SNMP test to poll a router.
http://www.ks-soft.net/hostmon.eng/mfra ... tm#chkSNMP
To generate a graph you may use Log Analyzer.

>Can hostmonitor do SNMPwalk, SNMPget, SNMPset commands and also recv SNMP traps from Cisco network gear.

SNMP test uses GET command. Also HostMonitor has "SNMP Set" action" that uses SET
command. HostMonitor does not use WALK command

Regards
Alex

ravik · Post by **ravik** » Wed Jul 02, 2003 5:52 am

Hi Alex...
Tx for the reply...
You did not answer if Hostmonitor can recv SNMP traps from cisco devices.
Also, do I need to lod MIB variables on Hostmonitor server to monitor MIB variables I am interested in. I am asking this bcoz I was not able to do a snmpget for the variable packets in/out octets/sec query against my router interface. If I need to lod MIBs how do I do it.

Tx
Ravi

KS-Soft · Post by **KS-Soft** » Wed Jul 02, 2003 10:50 am

ravik,

Current version cannot receive SNMP Traps, it will be implemented in future. You don't need to load MIB variables because HostMonitor does not support MIB lists. Just provide OID when you setup the test.

Regards
Alex

ravik · Post by **ravik** » Sun Jul 06, 2003 4:11 pm

Hi Alex..
Tx again for such a prompt reply.
You mentioned that there is no need to load the MIBs into Hostmonitor. But i am unable to setup Hostmonitor to look for the MIB variable that queries octets/sec on router interface. HM gives an error stating unknown SDI variable. But i can query the same variable via snmpwalk from a different host. Is there anything I am missing. Please help.

Tx
Ravi

KS-Soft · Post by **KS-Soft** » Mon Jul 07, 2003 3:27 am

How do you specify variable? Like "iso.org. dod.internet.mgmt.mib.mgmt..."? You should specify it as set of numbers, e.g. "1.3.6.1.2.1.1..."

Regards
Alex

ravik · Post by **ravik** » Mon Jul 07, 2003 7:16 am

Alex..
The MIB variable I am querying is 1.3.6.1.2.1.31.1.1.1.6.3 on the ethernet interface on the router. The error msg I get is Error:cannot retrieve data. Unknown variable(OID). The same MIB bariable works via the snmpget command from a unix host.
Let me know what you think
Ravi

KS-Soft · Post by **KS-Soft** » Mon Jul 07, 2003 5:06 pm

Is this variable represents single-instance object? In this case add ".0" to the end of OID or enable "Automatically append the single instance sub-identifier" option (on Miscellaneous page in the Options dialog).

Regards
Alex

ravik · Post by **ravik** » Mon Jul 07, 2003 7:56 pm

Alex..
The last .3 on 1.3.6.1.2.1.31.1.1.1.6.3 references the instance of ethernet interface on the router.
Am i missing something

Ravi

hamoja · Post by **hamoja** » Tue Jul 08, 2003 7:56 am

I had the same problem until I used a different program to determine the proper OID. I am also using cisco gear and the OID 1.3.6.1.2.1.31.1.1.1.6 is not a supported value if its a router or switch.

Arun V · Post by **Arun V** » Sun Jul 13, 2003 11:42 pm

Ravi,

Hostmonitor's SNMP test is excellent provided the OIDs are fed properly. I monitor various Cisco interfaces including Frame-Relay sub-interfaces. Before Hostmonitor, I used to monitor using "Solarwinds". This has an MIB walker which helps me in getting the OIDs.

Unfortunately, I have failed till date to get all the OIDs for various devices in an open forum.

Alex is the best person to help us in this regard.

Arun.

hamoja · Post by **hamoja** » Mon Jul 14, 2003 6:03 am

I use that product also and its comming up invalid OID for any Cisco type router/l3-4.

genasea · Post by **genasea** » Tue Jul 22, 2003 2:47 pm

There is an application called snmpeye (freeware) that you can use to do a walk of the device. It works pretty well.

Also, most MIB's available can be found at the following URL:

http://www.oidview.com/mibs/detail.html?VID=9

I hope this helps.