SFP DOM SNMP monitoring

Kuznetsov Konstantin · ‎12-08-2017

Hi !
I have Cisco-WS-C3650-24TD-L (cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin) and I want to monitoring SFP DOM sensors (SFP-10GBase-SR).
I can see the data of SFP DOM on CLI

#show interfaces transceiver detail
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.

High Alarm High Warn Low Warn Low Alarm
Temperature Threshold Threshold Threshold Threshold
Port (Celsius) (Celsius) (Celsius) (Celsius) (Celsius)
--------- ------------------ ---------- --------- --------- ---------
Te1/1/3 27.0 75.0 70.0 0.0 -5.0
Te1/1/4 27.6 75.0 70.0 0.0 -5.0

High Alarm High Warn Low Warn Low Alarm
Voltage Threshold Threshold Threshold Threshold
Port (Volts) (Volts) (Volts) (Volts) (Volts)
--------- --------------- ---------- --------- --------- ---------
Te1/1/3 3.29 3.63 3.46 3.13 2.97
Te1/1/4 3.29 3.63 3.46 3.13 2.97

Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
--------- ----------------- ---------- --------- --------- ---------
Te1/1/3 -2.1 1.6 -1.3 -7.3 -11.3
Te1/1/4 -2.2 1.6 -1.3 -7.3 -11.3

Optical High Alarm High Warn Low Warn Low Alarm
Receive Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
------- ----------------- ---------- --------- --------- ---------
Te1/1/3 -2.5 2.0 -1.0 -9.9 -13.9
Te1/1/4 -2.7 2.0 -1.0 -9.9 -13.9

----------------------------------------------------------------

But I can't see this data from snmpwalk.

I can see DOM data in another device:

# snmpwalk -v2c "WS-C2960S-48TD-L"(c2960s-universalk9-mz.152-2.E5.bin) SNMPv2-SMI::mib-2.47.1.1.1.1.2
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1068 = STRING: "SFP-10GBase-LR"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1069 = STRING: "TenGigabitEthernet1/0/2 Module Temperature Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1070 = STRING: "TenGigabitEthernet1/0/2 Supply Voltage Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1071 = STRING: "TenGigabitEthernet1/0/2 Bias Current Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1072 = STRING: "TenGigabitEthernet1/0/2 Transmit Power Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1073 = STRING: "TenGigabitEthernet1/0/2 Receive Power Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1074 = STRING: "SFP-10GBase-LR"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1075 = STRING: "TenGigabitEthernet1/0/1 Module Temperature Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1076 = STRING: "TenGigabitEthernet1/0/1 Supply Voltage Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1077 = STRING: "TenGigabitEthernet1/0/1 Bias Current Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1078 = STRING: "TenGigabitEthernet1/0/1 Transmit Power Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1079 = STRING: "TenGigabitEthernet1/0/1 Receive Power Sensor"

But in C3650 I can't see it :(

# snmpwalk -v2c "WS-C3650-24TD-L"(cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin") SNMPv2-SMI::mib-2.47.1.1.1.1.2
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1074 = STRING: "SFP-10GBase-SR"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1075 = STRING: "SFP-10GBase-SR"

How I can see SFP DOM data and where I can check MIBs in this image?
I try check MIBs here - http://mibs.cloudapps.cisco.com/ITDIT/MIBS/MainServlet?ReleaseSel=0&PlatformSel=0&fsSel=0&IMAGE_NAME=cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin&SUBMIT2=Submit but I got error "Invalid image name "
I use version cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin because it latest stable version.

Ben Walters · ‎12-08-2017

Here is something that might be more helpful for you

ftp://ftp.cisco.com/pub/mibs/supportlists/cat3650/cat3650-MIB-supportlist.html

I also find the Object navigator extremely helpful for any sort of SNMP work

http://snmp.cloudapps.cisco.com/Support/SNMP/do/BrowseOID.do?local=en&translate=Translate&objectInput=1.3.6.1.2.1.47.1.1.1.1.2#oidContent

As you can see here, the string you are walking only has the physical description value.

I think you want to look at 1.3.6.1.4.1.9.9.91.1.1.1 (CISCO-ENTITY-SENSOR-MIB) which is supported on the 3650.

Hopefully this helps you.

Kuznetsov Konstantin · ‎12-12-2017

Thanks for your help.

You right, the string I was walking contain physical description value.
My 2960s has contain there this strings:

SNMPv2-SMI::mib-2.47.1.1.1.1.2.1074 = STRING: "SFP-10GBase-LR"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1075 = STRING: "TenGigabitEthernet1/0/1 Module Temperature Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1076 = STRING: "TenGigabitEthernet1/0/1 Supply Voltage Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1077 = STRING: "TenGigabitEthernet1/0/1 Bias Current Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1078 = STRING: "TenGigabitEthernet1/0/1 Transmit Power Sensor"
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1079 = STRING: "TenGigabitEthernet1/0/1 Receive Power Sensor"

I see there ID and description of sensors I need and I can get the value of sensors here 1.3.6.1.4.1.9.9.91.1.1.1

For example
snmpwalk -v2c "WS-C2960S-48TD-L" .1.3.6.1.2.1.47.1.1.1.1.2.1069
SNMPv2-SMI::mib-2.47.1.1.1.1.2.1069 = STRING: "TenGigabitEthernet1/0/2 Module Temperature Sensor"

snmpwalk -v2c "WS-C2960S-48TD-L" .1.3.6.1.4.1.9.9.91.1.1.1.1.4.1069
SNMPv2-SMI::enterprises.9.9.91.1.1.1.1.4.1069 = INTEGER: 292

Multiplayer 0.1 and I know temperature = 29.2 Celsius of my TenGigabitEthernet1/0/2 Module

In my WS-C3650-24TD-L i don't see sensors I need and I can't get from it value.
But sensors should be there because WS-C3650-24TD-L contain CISCO-ENTITY-SENSOR-MIB and I can see the data of SFP DOM on CLI

I still need help.