66 lines
2.5 KiB
Markdown
66 lines
2.5 KiB
Markdown
Here are a few configuration examples for different use cases.
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### Switch/router interface metrics
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This setup will collect data on all interfaces from three different tables, `IF-MIB::ifTable`, `IF-MIB::ifXTable` and `EtherLike-MIB::dot3StatsTable`. It will also add the name from `IF-MIB::ifDescr` and use that as a tag. Depending on your needs and preferences you can easily use `IF-MIB::ifName` or `IF-MIB::ifAlias` instead or in addition. The values of these are typically:
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IF-MIB::ifName = Gi0/0/0
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IF-MIB::ifDescr = GigabitEthernet0/0/0
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IF-MIB::ifAlias = ### LAN ###
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This configuration also collects the hostname from the device (`RFC1213-MIB::sysName.0`) and adds as a tag. So each metric will both have the configured host/IP as `agent_host` as well as the device self-reported hostname as `hostname` and the name of the host that has collected these metrics as `host`.
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Here is the configuration that you add to your `telegraf.conf`:
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```
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[[inputs.snmp]]
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agents = [ "host.example.com" ]
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version = 2
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community = "public"
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[[inputs.snmp.field]]
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name = "hostname"
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oid = "RFC1213-MIB::sysName.0"
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is_tag = true
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[[inputs.snmp.field]]
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name = "uptime"
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oid = "DISMAN-EXPRESSION-MIB::sysUpTimeInstance"
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# IF-MIB::ifTable contains counters on input and output traffic as well as errors and discards.
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[[inputs.snmp.table]]
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name = "interface"
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inherit_tags = [ "hostname" ]
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oid = "IF-MIB::ifTable"
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# Interface tag - used to identify interface in metrics database
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[[inputs.snmp.table.field]]
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name = "ifDescr"
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oid = "IF-MIB::ifDescr"
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is_tag = true
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# IF-MIB::ifXTable contains newer High Capacity (HC) counters that do not overflow as fast for a few of the ifTable counters
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[[inputs.snmp.table]]
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name = "interface"
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inherit_tags = [ "hostname" ]
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oid = "IF-MIB::ifXTable"
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# Interface tag - used to identify interface in metrics database
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[[inputs.snmp.table.field]]
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name = "ifDescr"
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oid = "IF-MIB::ifDescr"
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is_tag = true
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# EtherLike-MIB::dot3StatsTable contains detailed ethernet-level information about what kind of errors have been logged on an interface (such as FCS error, frame too long, etc)
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[[inputs.snmp.table]]
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name = "interface"
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inherit_tags = [ "hostname" ]
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oid = "EtherLike-MIB::dot3StatsTable"
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# Interface tag - used to identify interface in metrics database
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[[inputs.snmp.table.field]]
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name = "ifDescr"
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oid = "IF-MIB::ifDescr"
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is_tag = true
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```
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