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Network Interface Name Processor Plugin

The ifname plugin looks up network interface names using SNMP.

Telegraf minimum version: Telegraf 1.15.0

Global configuration options

In addition to the plugin-specific configuration settings, plugins support additional global and plugin configuration settings. These settings are used to modify metrics, tags, and field or create aliases and configure ordering, etc. See the CONFIGURATION.md for more details.

Secret-store support

This plugin supports secrets from secret-stores for the auth_password and priv_password option. See the secret-store documentation for more details on how to use them.

Configuration

# Add a tag of the network interface name looked up over SNMP by interface number
[[processors.ifname]]
  ## Name of tag holding the interface number
  # tag = "ifIndex"

  ## Name of output tag where service name will be added
  # dest = "ifName"

  ## Name of tag of the SNMP agent to request the interface name from
  ##   example: agent = "source"
  # agent = "agent"

  ## Timeout for each request.
  # timeout = "5s"

  ## SNMP version; can be 1, 2, or 3.
  # version = 2

  ## SNMP community string.
  # community = "public"

  ## Number of retries to attempt.
  # retries = 3

  ## The GETBULK max-repetitions parameter.
  # max_repetitions = 10

  ## SNMPv3 authentication and encryption options.
  ##
  ## Security Name.
  # sec_name = "myuser"
  ## Authentication protocol; one of "MD5", "SHA", or "".
  # auth_protocol = "MD5"
  ## Authentication password.
  # auth_password = "pass"
  ## Security Level; one of "noAuthNoPriv", "authNoPriv", or "authPriv".
  # sec_level = "authNoPriv"
  ## Context Name.
  # context_name = ""
  ## Privacy protocol used for encrypted messages; one of "DES", "AES" or "".
  # priv_protocol = ""
  ## Privacy password used for encrypted messages.
  # priv_password = ""

  ## max_parallel_lookups is the maximum number of SNMP requests to
  ## make at the same time.
  # max_parallel_lookups = 100

  ## ordered controls whether or not the metrics need to stay in the
  ## same order this plugin received them in. If false, this plugin
  ## may change the order when data is cached.  If you need metrics to
  ## stay in order set this to true.  keeping the metrics ordered may
  ## be slightly slower
  # ordered = false

  ## cache_ttl is the amount of time interface names are cached for a
  ## given agent.  After this period elapses if names are needed they
  ## will be retrieved again.
  # cache_ttl = "8h"

Example

Example config:

[[processors.ifname]]
  tag = "ifIndex"
  dest = "ifName"
- foo,ifIndex=2,agent=127.0.0.1 field=123 1502489900000000000
+ foo,ifIndex=2,agent=127.0.0.1,ifName=eth0 field=123 1502489900000000000