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Problem report
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Resolution: Unresolved
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Trivial
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None
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7.0.3
Zabbix perform unavailability / unreachability logic for every network issue (at least for SNMP items), while other SNMP items can be checked normally at the same time. In this case difference between "first network error" and "connection restored" can be very short (1-5 seconds). Probably it is better to consider multiple issues during some time:
282:20240819:193202.450 resuming SNMP agent checks on host "hostA": connection restored 282:20240819:193203.419 SNMP agent item "walk.ifHCInOctets" on host "hostA" failed: first network error, wait for 15 seconds 282:20240819:193204.568 SNMP agent item "walk.ifInDiscards" on host "hostB" failed: first network error, wait for 15 seconds 282:20240819:193215.875 resuming SNMP agent checks on host "hostD": connection restored 282:20240819:193218.677 resuming SNMP agent checks on host "hostA": connection restored 282:20240819:193219.431 resuming SNMP agent checks on host "hostC": connection restored 282:20240819:193223.238 resuming SNMP agent checks on host "hostB": connection restored 282:20240819:193232.457 SNMP agent item "walk.ifHCInUcastPkts" on host "hostA" failed: first network error, wait for 15 seconds 282:20240819:193248.274 SNMP agent item "walk.ifHighSpeed" on host "hostD" failed: first network error, wait for 15 seconds 282:20240819:193250.318 resuming SNMP agent checks on host "hostA": connection restored 282:20240819:193251.074 SNMP agent item "walk.ifInDiscards" on host "hostA" failed: first network error, wait for 15 seconds 282:20240819:193252.569 SNMP agent item "walk.ifInDiscards" on host "hostC" failed: first network error, wait for 15 seconds 282:20240819:193255.192 SNMP agent item "walk.ifHCOutUcastPkts" on host "hostB" failed: first network error, wait for 15 seconds 282:20240819:193305.121 resuming SNMP agent checks on host "hostD": connection restored 282:20240819:193309.523 resuming SNMP agent checks on host "hostA": connection restored 282:20240819:193310.711 resuming SNMP agent checks on host "hostC": connection restored 282:20240819:193314.285 resuming SNMP agent checks on host "hostB": connection restored
HostA - 193203.419 error, 193218.677 recovery
HostB - 193204.568 error, 193223.238 recovery
HostC - 193252.569 error, 193310.711 recovery
HostD - 193248.274 error, 193305.121 recovery
During time period between error and recovery other items are polling normally.