Nagios Support Forum

Hi,

We use XI 5.2.2.

This is not a Nagios issue. More a snmp question, and wondering if you have seen this before.

We run snmp against all our Linux servers (about 200). For 3 like servers we are getting snmp timeouts from command line. I have narrowed it down a problem reading the hrDeviceTable. This table holds snmp info for Processors and Network Devices.

The command is:
snmpwalk -v2c -c Ronly1 server_1 hrDeviceType

The output
.
.
HOST-RESOURCES-MIB::hrDeviceType.196639 = OID: HOST-RESOURCES-TYPES::hrDeviceProcessor
HOST-RESOURCES-MIB::hrDeviceType.262145 = OID: HOST-RESOURCES-TYPES::hrDeviceNetwork
Timeout: No Response from server_1

I have concluded that hrDeviceType.262145 is interface lo, and the next one 262145 is interface eth0

I can run successful the command below against eth0
./check_snmp_int.pl -H bed-400-143 -C Ronly1 -2 -n eth0 -f -w 80,80 -c 90,90
eth0:DOWN: 1 int NOK : CRITICAL

My question is: Have you seen this before? That snmp stops reading DeviceType because it timesout on eth0?

FYI... eth0 is down by design.

This article seems to be similar to what you are talking about:

https://sourceforge.net/p/net-snmp/mail ... /10732498/

Perhaps you could increase the timeout in snmpwalk to something like -t 20

Thanks Box293! This gives me enough. Putting a higher timeout works.

I did search a lot for answers on web and in this forum before reaching out to support.

As always much appreciated. Please close.

No problem! We're glad to help.

As requested, I'll mark this as resolved and close it out. Feel free to open a new thread if you need assistance in the future.