Help with dbm sensors discovery

Help
1

I am trying to add dbm sensors of the onts connected to olt.

here is the snmpwalk of my onts dbm

snmpwalk -v 2c -c citajGeCom OLT_IP .1.3.6.1.4.1.2011.6.128.1.1.2.51.1.4

iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.0 = INTEGER: -1583
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.1 = INTEGER: -1488
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.2 = INTEGER: -2431
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.3 = INTEGER: -1525
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.4 = INTEGER: -1671
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.5 = INTEGER: -2602
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312192.6 = INTEGER: -2553
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.0 = INTEGER: -2292
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.1 = INTEGER: -3030
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.2 = INTEGER: -2536
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.3 = INTEGER: -2230
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.4 = INTEGER: -2205
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.5 = INTEGER: -2726
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.6 = INTEGER: -2863
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.7 = INTEGER: -2267
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.8 = INTEGER: -2958
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.9 = INTEGER: -2796
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.10 = INTEGER: 2147483647
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.11 = INTEGER: -2699
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.12 = INTEGER: -2004
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.13 = INTEGER: -2337
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.14 = INTEGER: -2356
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.15 = INTEGER: -2677
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.16 = INTEGER: -2409
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.17 = INTEGER: -2229
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.18 = INTEGER: -2356
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.19 = INTEGER: -2657
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.20 = INTEGER: -2744
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.21 = INTEGER: -2796
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.22 = INTEGER: -1869
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.23 = INTEGER: -2769
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.24 = INTEGER: -2259
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.25 = INTEGER: -2553
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.26 = INTEGER: -1970
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312448.27 = INTEGER: -1581
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.0 = INTEGER: -2409
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.1 = INTEGER: -2602
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.2 = INTEGER: -2443
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.3 = INTEGER: -2443
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.4 = INTEGER: -2318
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312704.5 = INTEGER: -2638
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312960.0 = INTEGER: 2147483647
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194312960.1 = INTEGER: 2147483647
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313216.0 = INTEGER: -2075
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313216.1 = INTEGER: -2070
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313216.2 = INTEGER: -2008
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313216.3 = INTEGER: -2328
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313472.0 = INTEGER: -2431
iso.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.4194313472.1 = INTEGER: -2119

when i ran snmpwalk from librenms install I got all of that data, so i added in yaml

dbm
-
          oid: hwGponOntOpticalDdmRxPower
          num_oid: '.1.3.6.1.4.1.2011.6.128.1.1.2.51.1.4.{{ $index }}'
          divisor: 100
          descr: "{{ $hwGponDeviceOntDespt }}"
          skip_value_gt: 999999

i used fo description oid for description of the ont

here is the output in librenms discovery debug

SNMP[‘/usr/bin/snmpbulkwalk’ ‘-v2c’ ‘-c’ 'COMMUNITY ‘-OteQUs’ ‘-Ih’ ‘-m’ ‘HUAWEI-DEVICE-MIB:HUAWEI-POWER-MIB:HWMUSA-DEV-MIB:HUAWEI-XPON-MIB:IF-MIB’ ‘-M’ ‘/opt/librenms/mibs:/opt/librenms/mibs/huawei’ ‘udp:HOSTNAME:161’ ‘hwGponDeviceOntDespt’]

hwGponDeviceOntDespt.4194312192.0 = "name1"
hwGponDeviceOntDespt.4194312192.1 = "name2"
hwGponDeviceOntDespt.4194312192.2 = "name3"
hwGponDeviceOntDespt.4194312192.3 = "R"
hwGponDeviceOntDespt.4194312192.4 = "Zdr"
hwGponDeviceOntDespt.4194312192.5 = "Mich"
hwGponDeviceOntDespt.4194312192.6 = "Ham"
hwGponDeviceOntDespt.4194312448.0 = "O"
hwGponDeviceOntDespt.4194312448.1 = "Zu"
hwGponDeviceOntDespt.4194312448.2 = "Lajc"
etc
etc
hwGponDeviceOntDespt.4194313472.0 = "Wik"
hwGponDeviceOntDespt.4194313472.1 = "Jal"

so i can get description for ont dbm,

here is the output of the librenms discovery debug

SNMP['/usr/bin/snmpbulkwalk' '-v2c' '-c' 'COMMUNITY '-OteQUs' '-Ih' '-m' 'HUAWEI-DEVICE-MIB:HUAWEI-POWER-MIB:HWMUSA-DEV-MIB:HUAWEI-XPON-MIB:IF-MIB' '-M' '/opt/librenms/mibs:/opt/librenms/mibs/huawei' 'udp:HOSTNAME:161' 'hwGponOntOpticalDdmRxPower']

hwGponOntOpticalDdmRxPower.4194312192.0 = -1586
hwGponOntOpticalDdmRxPower.4194312192.1 = -1488
hwGponOntOpticalDdmRxPower.4194312192.2 = -2431
hwGponOntOpticalDdmRxPower.4194312192.3 = -1527
hwGponOntOpticalDdmRxPower.4194312192.4 = -1669
hwGponOntOpticalDdmRxPower.4194312192.5 = -2602
hwGponOntOpticalDdmRxPower.4194312192.6 = -2553
hwGponOntOpticalDdmRxPower.4194312448.0 = -2301
hwGponOntOpticalDdmRxPower.4194312448.1 = -3030
hwGponOntOpticalDdmRxPower.4194312448.2 = -2536

Timeout: No Response from udp:OLT_IP:161

Is there possibility for not running snmpbulkwalk for that sensor ?

here is the pr for olt improvements

2

So i solved it with option in os nobulk:true … but when is device polled i still getting timeout for onts dbms with snmpget

3

Hi @jozefrebjak, as I told you in the PR, the snmp of the huawei OLTs is very poor and you will get lots of timeouts with default snmp options.

Tweak your snmp timeout/retries for the OLT. I think I have 10 timeout 5 retries.