I am getting this error on several devices when I run netmrg-gather. But I do get data back from these devices and it was graphing for a while. Any ideas what this means?
Usually this means just what it says, the uptime of the SNMP process is 0, so there's no use in polling it for more information.
Are you having problems with your snmpd daemon? We've heard reports that sometimes it just dies on some versions of Red Hat (although we've never seen it ourselves).