Canopy SM and Monitoring with SNMP

We are trying to use Cacti to graph RSSI and Jitter on a Canopy SM. What’s strange is that if I do an snmpwalk from my server, I get values for . I get a result just fine, but if I try the same thing with snmpget, then I get this error: “WHISP-SM-MIB::rssi = No Such Instance currently exists at this OID”. What the heck is going on here? Has anybody got a graphing working with Cacti/MRTG?

Here’s some output:

# snmpwalk -v 2c -c ctisnmpread .
WHISP-SM-MIB::rssi.0 = INTEGER: 927

# snmpget -v 2c -c ctisnmpread .
WHISP-SM-MIB::rssi = No Such Instance currently exists at this OID

The SNMPGET operation is used to retrieve a specific OBJECT (leaf object). In this case, since RSSI and Jitter are scalar variables, you will need to add the instance in the end. So you use . instead.

Let us know if this helps.

That did it. Thank you very much?