One network device not calculating data throughput on interfaces

briand · March 24, 2025, 5:53pm

CMK version: 2.3.0p28 Cloud
OS version: Debian 12

Error message: None for cmk --debug -vv <host> nor seen in cmc.log, however this is present when trying to download the SNMP walk through the UI:

Fetching 'walk'...
Failed: Failed to fetch data from SWITCH: cannot access local variable 'oid' where it is not associated with a value

Job finished.

cmc.log example line:

/omd/sites/SITE/var/log/cmc.log:2025-03-24 11:45:56 [5] [core 775504] Executing external command: PROCESS_SERVICE_CHECK_RESULT;SWITCH;Interface 8;0;[Port 8], (up), MAC: REDACTED, Speed: 1 GBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)\n[Port 8]\nOperational state: up\nMAC: REDACTED\nSpeed: 1 GBit/s\nIn: 0.00 B/s (0%)\nOut: 0.00 B/s (0%)\nErrors in: 0%\nDiscards in: 0 packets/s\nMulticast in: 0 packets/s\nBroadcast in: 0 packets/s\nUnicast in: 0 packets/s\nNon-unicast in: 0 packets/s\nErrors out: 0%\nDiscards out: 0 packets/s\nMulticast out: 0 packets/s\nBroadcast out: 0 packets/s\nUnicast out: 0 packets/s\nNon-unicast out: 0 packets/s|outqlen=0;;;; in=0;;;0;125000000 out=0;;;0;125000000 inerr=0;;;; indisc=0;;;; inmcast=0;;;; inbcast=0;;;; inucast=0;;;; innucast=0;;;; outerr=0;;;; outdisc=0;;;; outmcast=0;;;; outbcast=0;;;; outucast=0;;;; outnucast=0;;;;

Output of “cmk --debug -vvn hostname”:

OMD[SITE]:~$ cmk --debug -vv SWITCH
value store: synchronizing
Trying to acquire lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
Got lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
value store: loading from disk
Releasing lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
Released lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
Checkmk version 2.3.0p28
+ FETCHING DATA
  Source: SourceInfo(hostname='SWITCH', ipaddress='SWITCH', ident='snmp', fetcher_type=<FetcherType.SNMP: 7>, source_type=<SourceType.HOST: 1>)
[cpu_tracking] Start [7aa99f7a65d0]
Read from cache: SNMPFileCache(SWITCH, path_template=/omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/{mode}/{hostname}, max_age=MaxAge(checking=0, discovery=450.0, inventory=450.0), simulation=False, use_only_cache=False, file_cache_mode=6)
Not using cache (Too old. Age is 128 sec, allowed is 0 sec)
  SNMP scan:
       Getting OID .1.3.6.1.2.1.1.1.0: Executing SNMP _Mode.GET of .1.3.6.1.2.1.1.1.0 on SWITCH
=> [b'USW GigaBit Ethernet Switch, firmware 7.1.26.15869'] OCTETSTR
b'USW GigaBit Ethernet Switch, firmware 7.1.26.15869'
       Getting OID .1.3.6.1.2.1.1.2.0: Executing SNMP _Mode.GET of .1.3.6.1.2.1.1.2.0 on SWITCH
=> [b'.1.3.6.1.4.1.41112.1'] OBJECTID
b'.1.3.6.1.4.1.41112.1'
       Using cached OID .1.3.6.1.2.1.1.1.0: 'USW GigaBit Ethernet Switch, firmware 7.1.26.15869'
   SNMP scan found                    snmp_uptime
Trying to acquire lock on /omd/sites/SITE/tmp/check_mk/snmp_scan_cache/SWITCH.SWITCH
Got lock on /omd/sites/SITE/tmp/check_mk/snmp_scan_cache/SWITCH.SWITCH
Releasing lock on /omd/sites/SITE/tmp/check_mk/snmp_scan_cache/SWITCH.SWITCH
Released lock on /omd/sites/SITE/tmp/check_mk/snmp_scan_cache/SWITCH.SWITCH
if64: Fetching data (SNMP walk cache is enabled: Use any locally cached information)
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.3" on SWITCH
.1.3.6.1.2.1.1.3.0 => [b'130684142'] 'TICKS'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.25.1.1" on SWITCH
Executing SNMP _Mode.GET of .1.3.6.1.2.1.25.1.1 on SWITCH
=> [None] NOSUCHOBJECT
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.1" on SWITCH
.1.3.6.1.2.1.2.2.1.1.1 => [b'1'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.2 => [b'2'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.3 => [b'3'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.4 => [b'4'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.5 => [b'5'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.6 => [b'6'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.7 => [b'7'] 'INTEGER32'
.1.3.6.1.2.1.2.2.1.1.8 => [b'8'] 'INTEGER32'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.2" on SWITCH
.1.3.6.1.2.1.2.2.1.2.1 => [b'Port 1'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.2 => [b'Port 2'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.3 => [b'Port 3'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.4 => [b'Port 4'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.5 => [b'Port 5'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.6 => [b'Port 6'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.7 => [b'Port 7'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.2.8 => [b'Port 8'] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.3" on SWITCH
.1.3.6.1.2.1.2.2.1.3.1 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.2 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.3 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.4 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.5 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.6 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.7 => [b'6'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.3.8 => [b'6'] 'INTEGER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.5" on SWITCH
.1.3.6.1.2.1.2.2.1.5.1 => [b'1000000000'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.2 => [b'1000000000'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.3 => [b'100000000'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.4 => [b'100000000'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.5 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.6 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.7 => [b'1000000000'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.5.8 => [b'1000000000'] 'GAUGE'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.8" on SWITCH
.1.3.6.1.2.1.2.2.1.8.1 => [b'1'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.2 => [b'1'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.3 => [b'1'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.4 => [b'1'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.5 => [b'2'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.6 => [b'2'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.7 => [b'1'] 'INTEGER'
.1.3.6.1.2.1.2.2.1.8.8 => [b'1'] 'INTEGER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.6" on SWITCH
.1.3.6.1.2.1.31.1.1.1.6.1000001 => [b'1895131487813'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000002 => [b'133464206059'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000003 => [b'70783572'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000004 => [b'31023567885'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000007 => [b'343128336048'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.6.1000008 => [b'83571746325'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.7" on SWITCH
.1.3.6.1.2.1.31.1.1.1.7.1000001 => [b'1358624914'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000002 => [b'204492750'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000003 => [b'689347'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000004 => [b'220368352'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000007 => [b'367951560'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.7.1000008 => [b'111001039'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.8" on SWITCH
.1.3.6.1.2.1.31.1.1.1.8.1000001 => [b'33134'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000002 => [b'605445'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000003 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000004 => [b'106'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000007 => [b'60594'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.8.1000008 => [b'51945'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.9" on SWITCH
.1.3.6.1.2.1.31.1.1.1.9.1000001 => [b'78703'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000002 => [b'228136'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000003 => [b'38'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000004 => [b'810'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000007 => [b'63251'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.9.1000008 => [b'9075'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.13" on SWITCH
.1.3.6.1.2.1.2.2.1.13.1 => [b'5744'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.2 => [b'375'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.3 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.4 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.5 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.6 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.7 => [b'27827'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.13.8 => [b'1774044'] 'COUNTER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.14" on SWITCH
.1.3.6.1.2.1.2.2.1.14.1 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.2 => [b'1'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.3 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.4 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.5 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.6 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.7 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.14.8 => [b'0'] 'COUNTER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.10" on SWITCH
.1.3.6.1.2.1.31.1.1.1.10.1000001 => [b'153725799571'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000002 => [b'809742801315'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000003 => [b'994646338'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000004 => [b'595970016775'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000007 => [b'609526933435'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.10.1000008 => [b'322189678551'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.11" on SWITCH
.1.3.6.1.2.1.31.1.1.1.11.1000001 => [b'553424289'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000002 => [b'597679498'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000003 => [b'1129225'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000004 => [b'425992488'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000007 => [b'469400001'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.11.1000008 => [b'218898697'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.12" on SWITCH
.1.3.6.1.2.1.31.1.1.1.12.1000001 => [b'1233865'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000002 => [b'762502'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000003 => [b'1259023'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000004 => [b'1266915'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000007 => [b'1171848'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.12.1000008 => [b'1178258'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.13" on SWITCH
.1.3.6.1.2.1.31.1.1.1.13.1000001 => [b'495199'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000002 => [b'345702'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000003 => [b'562458'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000004 => [b'573045'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000005 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000006 => [b'0'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000007 => [b'424521'] 'COUNTER64'
.1.3.6.1.2.1.31.1.1.1.13.1000008 => [b'478559'] 'COUNTER64'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.19" on SWITCH
.1.3.6.1.2.1.2.2.1.19.1 => [b'5744'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.2 => [b'375'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.3 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.4 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.5 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.6 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.7 => [b'27827'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.19.8 => [b'1774044'] 'COUNTER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.20" on SWITCH
.1.3.6.1.2.1.2.2.1.20.1 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.2 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.3 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.4 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.5 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.6 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.7 => [b'0'] 'COUNTER'
.1.3.6.1.2.1.2.2.1.20.8 => [b'0'] 'COUNTER'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.21" on SWITCH
.1.3.6.1.2.1.2.2.1.21.1 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.2 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.3 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.4 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.5 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.6 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.7 => [b'0'] 'GAUGE'
.1.3.6.1.2.1.2.2.1.21.8 => [b'0'] 'GAUGE'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.18" on SWITCH
.1.3.6.1.2.1.31.1.1.1.18.1000001 => [b'Gi 1/1'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000002 => [b'Gi 1/2'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000003 => [b'Gi 1/3'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000004 => [b'Gi 1/4'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000005 => [b'Gi 1/5'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000006 => [b'Gi 1/6'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000007 => [b'Gi 1/7'] 'OCTETSTR'
.1.3.6.1.2.1.31.1.1.1.18.1000008 => [b'Gi 1/8'] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.2.2.1.6" on SWITCH
.1.3.6.1.2.1.2.2.1.6.1 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.2 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.3 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.4 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.5 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.6 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.7 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
.1.3.6.1.2.1.2.2.1.6.8 => [b't\xac\xb93\x80\x9b'] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.31.1.1.1.15" on SWITCH
.1.3.6.1.2.1.31.1.1.1.15.1000001 => [b'1000'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000002 => [b'1000'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000003 => [b'1000'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000004 => [b'1000'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000005 => [b'10'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000006 => [b'10'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000007 => [b'1000'] 'GAUGE'
.1.3.6.1.2.1.31.1.1.1.15.1000008 => [b'1000'] 'GAUGE'
snmp_info: Fetching data (SNMP walk cache is enabled: Use any locally cached information)
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.1" on SWITCH
.1.3.6.1.2.1.1.1.0 => [b'USW GigaBit Ethernet Switch, firmware 7.1.26.15869'] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.2" on SWITCH
.1.3.6.1.2.1.1.2.0 => [b'.1.3.6.1.4.1.41112.1'] 'OBJECTID'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.4" on SWITCH
.1.3.6.1.2.1.1.4.0 => [b''] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.5" on SWITCH
.1.3.6.1.2.1.1.5.0 => [b'SWITCH'] 'OCTETSTR'
Executing BULKWALK (v2c) of ".1.3.6.1.2.1.1.6" on SWITCH
.1.3.6.1.2.1.1.6.0 => [b''] 'OCTETSTR'
snmp_uptime: Fetching data (SNMP walk cache is enabled: Use any locally cached information)
Already fetched OID: .1.3.6.1.2.1.1.3
Already fetched OID: .1.3.6.1.2.1.25.1.1
Write data to cache file /omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/checking/SWITCH
Trying to acquire lock on /omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/checking/SWITCH
Got lock on /omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/checking/SWITCH
Releasing lock on /omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/checking/SWITCH
Released lock on /omd/sites/SITE/tmp/check_mk/data_source_cache/snmp/checking/SWITCH
[cpu_tracking] Stop [7aa99f7a65d0 - Snapshot(process=posix.times_result(user=0.010000000000000009, system=0.010000000000000009, children_user=0.0, children_system=0.0, elapsed=0.4299999997019768))]
  Source: SourceInfo(hostname='SWITCH', ipaddress='SWITCH', ident='piggyback', fetcher_type=<FetcherType.PIGGYBACK: 4>, source_type=<SourceType.HOST: 1>)
[cpu_tracking] Start [7aa9a02663c0]
Read from cache: NoCache(SWITCH, path_template=/dev/null, max_age=MaxAge(checking=0.0, discovery=0.0, inventory=0.0), simulation=False, use_only_cache=False, file_cache_mode=1)
No piggyback files for 'SWITCH'. Skip processing.
No piggyback files for 'SWITCH'. Skip processing.
Get piggybacked data
[cpu_tracking] Stop [7aa9a02663c0 - Snapshot(process=posix.times_result(user=0.0, system=0.0, children_user=0.0, children_system=0.0, elapsed=0.0))]
[cpu_tracking] Start [7aa9a01fd970]
+ PARSE FETCHER RESULTS
  HostKey(hostname='SWITCH', source_type=<SourceType.HOST: 1>)  -> Add sections: ['if64', 'snmp_info', 'snmp_uptime']
  HostKey(hostname='SWITCH', source_type=<SourceType.HOST: 1>)  -> Add sections: []
Received no piggyback data
Interface 1          [Port 1], (up), MAC: REDACTED, Speed: 1 GBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
Interface 2          [Port 2], (up), MAC: REDACTED, Speed: 1 GBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
Interface 3          [Port 3], (up), MAC: REDACTED, Speed: 100 MBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
Interface 4          [Port 4], (up), MAC: REDACTED, Speed: 100 MBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
Interface 7          [Port 7], (up), MAC: REDACTED, Speed: 1 GBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
Interface 8          [Port 8], (up), MAC: REDACTED, Speed: 1 GBit/s, In: 0.00 B/s (0%), Out: 0.00 B/s (0%)
SNMP Info            USW GigaBit Ethernet Switch, firmware 7.1.26.15869, SWITCH, ,
Uptime               Up since 2025-03-09 09:41:54, Uptime: 15 days 3 hours
No piggyback files for 'SWITCH'. Skip processing.
No piggyback files for 'SWITCH'. Skip processing.
[cpu_tracking] Stop [7aa9a01fd970 - Snapshot(process=posix.times_result(user=0.010000000000000009, system=0.0, children_user=0.0, children_system=0.0, elapsed=0.0))]
value store: synchronizing
Trying to acquire lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
Got lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
value store: already loaded
value store: writing to disk
Releasing lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
Released lock on /omd/sites/SITE/tmp/check_mk/counters/SWITCH
[snmp] Success, [piggyback] Success (but no data found for this host), execution time 0.4 sec | execution_time=0.430 user_time=0.020 system_time=0.010 children_user_time=0.000 children_system_time=0.000 cmk_time_snmp=0.410 cmk_time_agent=0.000
OMD[SITE]:~$

It’s only this one host and it’s been going on for months and I never noticed before.

I confirmed with raw snmpwalks that the counters for HCOctet are increasing:

30s delta
InOctets:
1000001: 47,948,053
1000002: 1,029,974
1000003: 1,084
1000004: 1,375,898
1000005: 0
1000006: 0
1000007: 87,746,674
1000008: 10,365

OutOctets:
1000001: 85,663,570
1000002: 10,945,068
1000003: 7,566
1000004: 35,929,276
1000005: 0
1000006: 0
1000007: 2,431,443
1000008: 9,548

60s delta
InOctets:
1000001: 106,335,417
1000002: 1,748,727
1000003: 7,229
1000004: 2,801,870
1000005: 0
1000006: 0
1000007: 170,235,842
1000008: 16,147

OutOctets:
1000001: 174,095,303
1000002: 32,096,218
1000003: 20,815
1000004: 71,022,248
1000005: 0
1000006: 0
1000007: 4,488,790
1000008: 18,586

With no obvious direction to take based on the one error I found, I disabled the host from monitoring, activated, and stopped the site. I then cleared all RRD-related files for the affected Interfaces, as well as the ~/var/check_mk/snmp_cache directory. After restarting the site, I did a UI tabula rasa. The RRD info and actual RRD files were successfully regenerated, but the issue remains.

I’m a bit stumped as to what to check next. Suggestions are appreciated

briand · March 24, 2025, 5:59pm

For the more visually inclined, here’s a screenshot showing the issue

system · March 24, 2026, 5:59pm

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