I have two different issues here.
1) The switch returning **bleep** information.
2) The NMS formatting it incorrectly (which may be at the direction of the MIB)
I have done the snmpget request in the same order as the screenshot from the NMS.
The snmpget isn't returning all of the information one would care about (not enough digits for precision) and the NMS is introducing a few extra decimal points.
[redacted]:~$ /usr/bin/snmpget -v3 -l authPriv -u [redacted] -a SHA -A [redacted] -x AES -X [redacted] [redacted] .1.3.6.1.4.1.9.9.91.1.1.1.1.4.300003522 .1.3.6.1.4.1.9.9.91.1.1.1.1.4.300003524 .1.3.6.1.4.1.9.9.91.1.1.1.1.4.300003527 .1.3.6.1.4.1.9.9.91.1.1.1.1.4.300003533 .1.3.6.1.4.1.9.9.91.1.1.1.1.4.300003534
iso.3.6.1.4.1.9.9.91.1.1.1.1.4.300003522 = INTEGER: 3
iso.3.6.1.4.1.9.9.91.1.1.1.1.4.300003524 = INTEGER: 15
iso.3.6.1.4.1.9.9.91.1.1.1.1.4.300003527 = INTEGER: 39
iso.3.6.1.4.1.9.9.91.1.1.1.1.4.300003533 = INTEGER: -6
iso.3.6.1.4.1.9.9.91.1.1.1.1.4.300003534 = INTEGER: -6
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 39.67 C 100.00 C -50.00 C 85.00 C -40.00 C
Voltage 3.35 V 3.79 V 2.80 V 3.46 V 3.13 V
Current 15.75 mA 90.00 mA 0.00 mA 85.00 mA 0.00 mA
Tx Power -6.10 dBm -1.50 dBm -10.50 dBm -3.00 dBm -9.03 dBm
Rx Power -6.12 dBm -3.00 dBm -26.98 dBm -5.00 dBm -23.97 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning
It's a rather simple SNMP config, so I don't see messing it up.
!Command: show running-config snmp
!Time: Mon Apr 1 10:09:48 2019
version 7.0(3)I2(3)
snmp-server contact FD-IX <support@fd-ix.com>
snmp-server location 01.201.b03 733 W. Henry St., Indianapolis, IN, 46225, USA [39.759731, -86.172487]
snmp-server user Admin network-operator auth sha [redacted] priv aes-128 [redacted] localizedkey
rmon event 1 log trap public description FATAL(1) owner PMON@FATAL
rmon event 2 log trap public description CRITICAL(2) owner PMON@CRITICAL
rmon event 3 log trap public description ERROR(3) owner PMON@ERROR
rmon event 4 log trap public description WARNING(4) owner PMON@WARNING
rmon event 5 log trap public description INFORMATION(5) owner PMON@INFO
snmp-server community [redacted] group network-operator
