550 lines
15 KiB
Markdown
550 lines
15 KiB
Markdown
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# SNMP Input Plugin
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The SNMP input plugin gathers metrics from SNMP agents
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### Configuration:
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#### Very simple example
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In this example, the plugin will gather value of OIDS:
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- `.1.3.6.1.2.1.2.2.1.4.1`
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```toml
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# Very Simple Example
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[[inputs.snmp]]
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[[inputs.snmp.host]]
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address = "127.0.0.1:161"
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# SNMP community
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community = "public" # default public
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# SNMP version (1, 2 or 3)
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# Version 3 not supported yet
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version = 2 # default 2
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# Simple list of OIDs to get, in addition to "collect"
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get_oids = [".1.3.6.1.2.1.2.2.1.4.1"]
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```
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#### Simple example
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In this example, Telegraf gathers value of OIDS:
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- named **ifnumber**
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- named **interface_speed**
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With **inputs.snmp.get** section the plugin gets the oid number:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed*
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As you can see *ifSpeed* is not a valid OID. In order to get
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the valid OID, the plugin uses `snmptranslate_file` to match the OID:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed* => `.1.3.6.1.2.1.2.2.1.5`
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Also as the plugin will append `instance` to the corresponding OID:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed* => `.1.3.6.1.2.1.2.2.1.5.1`
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In this example, the plugin will gather value of OIDS:
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- `.1.3.6.1.2.1.2.1.0`
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- `.1.3.6.1.2.1.2.2.1.5.1`
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```toml
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# Simple example
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[[inputs.snmp]]
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## Use 'oids.txt' file to translate oids to names
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## To generate 'oids.txt' you need to run:
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## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
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## Or if you have an other MIB folder with custom MIBs
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## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
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snmptranslate_file = "/tmp/oids.txt"
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[[inputs.snmp.host]]
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address = "127.0.0.1:161"
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# SNMP community
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community = "public" # default public
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# SNMP version (1, 2 or 3)
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# Version 3 not supported yet
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version = 2 # default 2
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# Which get/bulk do you want to collect for this host
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collect = ["ifnumber", "interface_speed"]
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[[inputs.snmp.get]]
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name = "ifnumber"
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oid = ".1.3.6.1.2.1.2.1.0"
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[[inputs.snmp.get]]
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name = "interface_speed"
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oid = "ifSpeed"
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instance = "1"
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```
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#### Simple bulk example
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In this example, Telegraf gathers value of OIDS:
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- named **ifnumber**
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- named **interface_speed**
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- named **if_out_octets**
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With **inputs.snmp.get** section the plugin gets oid number:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed*
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With **inputs.snmp.bulk** section the plugin gets the oid number:
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- **if_out_octets** => *ifOutOctets*
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As you can see *ifSpeed* and *ifOutOctets* are not a valid OID.
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In order to get the valid OID, the plugin uses `snmptranslate_file`
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to match the OID:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed* => `.1.3.6.1.2.1.2.2.1.5`
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- **if_out_octets** => *ifOutOctets* => `.1.3.6.1.2.1.2.2.1.16`
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Also, the plugin will append `instance` to the corresponding OID:
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- **ifnumber** => `.1.3.6.1.2.1.2.1.0`
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- **interface_speed** => *ifSpeed* => `.1.3.6.1.2.1.2.2.1.5.1`
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And **if_out_octets** is a bulk request, the plugin will gathers all
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OIDS in the table.
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- `.1.3.6.1.2.1.2.2.1.16.1`
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- `.1.3.6.1.2.1.2.2.1.16.2`
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- `.1.3.6.1.2.1.2.2.1.16.3`
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- `.1.3.6.1.2.1.2.2.1.16.4`
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- `.1.3.6.1.2.1.2.2.1.16.5`
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- `...`
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In this example, the plugin will gather value of OIDS:
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- `.1.3.6.1.2.1.2.1.0`
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- `.1.3.6.1.2.1.2.2.1.5.1`
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- `.1.3.6.1.2.1.2.2.1.16.1`
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- `.1.3.6.1.2.1.2.2.1.16.2`
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- `.1.3.6.1.2.1.2.2.1.16.3`
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- `.1.3.6.1.2.1.2.2.1.16.4`
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- `.1.3.6.1.2.1.2.2.1.16.5`
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- `...`
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```toml
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# Simple bulk example
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[[inputs.snmp]]
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## Use 'oids.txt' file to translate oids to names
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## To generate 'oids.txt' you need to run:
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## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
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## Or if you have an other MIB folder with custom MIBs
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## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
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snmptranslate_file = "/tmp/oids.txt"
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[[inputs.snmp.host]]
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address = "127.0.0.1:161"
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# SNMP community
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community = "public" # default public
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# SNMP version (1, 2 or 3)
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# Version 3 not supported yet
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version = 2 # default 2
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# Which get/bulk do you want to collect for this host
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collect = ["interface_speed", "if_number", "if_out_octets"]
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[[inputs.snmp.get]]
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name = "interface_speed"
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oid = "ifSpeed"
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instance = "1"
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[[inputs.snmp.get]]
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name = "if_number"
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oid = "ifNumber"
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[[inputs.snmp.bulk]]
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name = "if_out_octets"
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oid = "ifOutOctets"
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```
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#### Table example
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In this example, we remove collect attribute to the host section,
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but you can still use it in combination of the following part.
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Note: This example is like a bulk request a but using an
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other configuration
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Telegraf gathers value of OIDS of the table:
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- named **iftable1**
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With **inputs.snmp.table** section the plugin gets oid number:
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- **iftable1** => `.1.3.6.1.2.1.31.1.1.1`
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Also **iftable1** is a table, the plugin will gathers all
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OIDS in the table and in the subtables
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- `.1.3.6.1.2.1.31.1.1.1.1`
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- `.1.3.6.1.2.1.31.1.1.1.1.1`
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- `.1.3.6.1.2.1.31.1.1.1.1.2`
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- `.1.3.6.1.2.1.31.1.1.1.1.3`
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- `.1.3.6.1.2.1.31.1.1.1.1.4`
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- `.1.3.6.1.2.1.31.1.1.1.1....`
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- `.1.3.6.1.2.1.31.1.1.1.2`
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- `.1.3.6.1.2.1.31.1.1.1.2....`
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- `.1.3.6.1.2.1.31.1.1.1.3`
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- `.1.3.6.1.2.1.31.1.1.1.3....`
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- `.1.3.6.1.2.1.31.1.1.1.4`
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- `.1.3.6.1.2.1.31.1.1.1.4....`
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- `.1.3.6.1.2.1.31.1.1.1.5`
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- `.1.3.6.1.2.1.31.1.1.1.5....`
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- `.1.3.6.1.2.1.31.1.1.1.6....`
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- `...`
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```toml
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# Table example
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[[inputs.snmp]]
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## Use 'oids.txt' file to translate oids to names
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## To generate 'oids.txt' you need to run:
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## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
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## Or if you have an other MIB folder with custom MIBs
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## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
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snmptranslate_file = "/tmp/oids.txt"
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[[inputs.snmp.host]]
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address = "127.0.0.1:161"
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# SNMP community
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community = "public" # default public
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# SNMP version (1, 2 or 3)
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# Version 3 not supported yet
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version = 2 # default 2
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# Which get/bulk do you want to collect for this host
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# Which table do you want to collect
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[[inputs.snmp.host.table]]
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name = "iftable1"
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# table without mapping neither subtables
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# This is like bulk request
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[[inputs.snmp.table]]
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name = "iftable1"
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oid = ".1.3.6.1.2.1.31.1.1.1"
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```
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#### Table with subtable example
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In this example, we remove collect attribute to the host section,
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but you can still use it in combination of the following part.
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Note: This example is like a bulk request a but using an
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other configuration
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Telegraf gathers value of OIDS of the table:
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- named **iftable2**
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With **inputs.snmp.table** section *AND* **sub_tables** attribute,
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the plugin will get OIDS from subtables:
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- **iftable2** => `.1.3.6.1.2.1.2.2.1.13`
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Also **iftable2** is a table, the plugin will gathers all
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OIDS in subtables:
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- `.1.3.6.1.2.1.2.2.1.13.1`
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- `.1.3.6.1.2.1.2.2.1.13.2`
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- `.1.3.6.1.2.1.2.2.1.13.3`
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- `.1.3.6.1.2.1.2.2.1.13.4`
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- `.1.3.6.1.2.1.2.2.1.13....`
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```toml
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# Table with subtable example
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[[inputs.snmp]]
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## Use 'oids.txt' file to translate oids to names
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## To generate 'oids.txt' you need to run:
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## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
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## Or if you have an other MIB folder with custom MIBs
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## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
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snmptranslate_file = "/tmp/oids.txt"
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[[inputs.snmp.host]]
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address = "127.0.0.1:161"
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# SNMP community
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community = "public" # default public
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# SNMP version (1, 2 or 3)
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# Version 3 not supported yet
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version = 2 # default 2
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# Which table do you want to collect
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[[inputs.snmp.host.table]]
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name = "iftable2"
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# table without mapping but with subtables
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[[inputs.snmp.table]]
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name = "iftable2"
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sub_tables = [".1.3.6.1.2.1.2.2.1.13"]
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# note
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# oid attribute is useless
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```
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#### Table with mapping example
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In this example, we remove collect attribute to the host section,
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but you can still use it in combination of the following part.
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Telegraf gathers value of OIDS of the table:
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- named **iftable3**
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With **inputs.snmp.table** section the plugin gets oid number:
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- **iftable3** => `.1.3.6.1.2.1.31.1.1.1`
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Also **iftable2** is a table, the plugin will gathers all
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OIDS in the table and in the subtables
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- `.1.3.6.1.2.1.31.1.1.1.1`
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- `.1.3.6.1.2.1.31.1.1.1.1.1`
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- `.1.3.6.1.2.1.31.1.1.1.1.2`
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- `.1.3.6.1.2.1.31.1.1.1.1.3`
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- `.1.3.6.1.2.1.31.1.1.1.1.4`
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- `.1.3.6.1.2.1.31.1.1.1.1....`
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- `.1.3.6.1.2.1.31.1.1.1.2`
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- `.1.3.6.1.2.1.31.1.1.1.2....`
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- `.1.3.6.1.2.1.31.1.1.1.3`
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- `.1.3.6.1.2.1.31.1.1.1.3....`
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- `.1.3.6.1.2.1.31.1.1.1.4`
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- `.1.3.6.1.2.1.31.1.1.1.4....`
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- `.1.3.6.1.2.1.31.1.1.1.5`
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- `.1.3.6.1.2.1.31.1.1.1.5....`
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- `.1.3.6.1.2.1.31.1.1.1.6....`
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- `...`
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But the **include_instances** attribute will filter which OIDS
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will be gathered; As you see, there is an other attribute, `mapping_table`.
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`include_instances` and `mapping_table` permit to build a hash table
|
||
|
|
to filter only OIDS you want.
|
||
|
|
Let's say, we have the following data on SNMP server:
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.1` has as value: `enp5s0`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.2` has as value: `enp5s1`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.3` has as value: `enp5s2`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.4` has as value: `eth0`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.5` has as value: `eth1`
|
||
|
|
|
||
|
|
The plugin will build the following hash table:
|
||
|
|
|
||
|
|
| instance name | instance id |
|
||
|
|
|---------------|-------------|
|
||
|
|
| `enp5s0` | `1` |
|
||
|
|
| `enp5s1` | `2` |
|
||
|
|
| `enp5s2` | `3` |
|
||
|
|
| `eth0` | `4` |
|
||
|
|
| `eth1` | `5` |
|
||
|
|
|
||
|
|
With the **include_instances** attribute, the plugin will gather
|
||
|
|
the following OIDS:
|
||
|
|
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.1.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.1.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.2.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.2.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.3.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.3.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.4.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.4.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.5.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.5.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.5`
|
||
|
|
- `...`
|
||
|
|
|
||
|
|
Note: the plugin will add instance name as tag *instance*
|
||
|
|
|
||
|
|
```toml
|
||
|
|
# Simple table with mapping example
|
||
|
|
[[inputs.snmp]]
|
||
|
|
## Use 'oids.txt' file to translate oids to names
|
||
|
|
## To generate 'oids.txt' you need to run:
|
||
|
|
## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
|
||
|
|
## Or if you have an other MIB folder with custom MIBs
|
||
|
|
## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
|
||
|
|
snmptranslate_file = "/tmp/oids.txt"
|
||
|
|
[[inputs.snmp.host]]
|
||
|
|
address = "127.0.0.1:161"
|
||
|
|
# SNMP community
|
||
|
|
community = "public" # default public
|
||
|
|
# SNMP version (1, 2 or 3)
|
||
|
|
# Version 3 not supported yet
|
||
|
|
version = 2 # default 2
|
||
|
|
# Which table do you want to collect
|
||
|
|
[[inputs.snmp.host.table]]
|
||
|
|
name = "iftable3"
|
||
|
|
include_instances = ["enp5s0", "eth1"]
|
||
|
|
|
||
|
|
# table with mapping but without subtables
|
||
|
|
[[inputs.snmp.table]]
|
||
|
|
name = "iftable3"
|
||
|
|
oid = ".1.3.6.1.2.1.31.1.1.1"
|
||
|
|
# if empty. get all instances
|
||
|
|
mapping_table = ".1.3.6.1.2.1.31.1.1.1.1"
|
||
|
|
# if empty, get all subtables
|
||
|
|
```
|
||
|
|
|
||
|
|
|
||
|
|
#### Table with both mapping and subtable example
|
||
|
|
|
||
|
|
In this example, we remove collect attribute to the host section,
|
||
|
|
but you can still use it in combination of the following part.
|
||
|
|
|
||
|
|
Telegraf gathers value of OIDS of the table:
|
||
|
|
|
||
|
|
- named **iftable4**
|
||
|
|
|
||
|
|
With **inputs.snmp.table** section *AND* **sub_tables** attribute,
|
||
|
|
the plugin will get OIDS from subtables:
|
||
|
|
|
||
|
|
- **iftable4** => `.1.3.6.1.2.1.31.1.1.1`
|
||
|
|
|
||
|
|
Also **iftable2** is a table, the plugin will gathers all
|
||
|
|
OIDS in the table and in the subtables
|
||
|
|
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.1
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.2`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.3`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.4`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6....`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.2`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.3`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.4`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10....`
|
||
|
|
|
||
|
|
But the **include_instances** attribute will filter which OIDS
|
||
|
|
will be gathered; As you see, there is an other attribute, `mapping_table`.
|
||
|
|
`include_instances` and `mapping_table` permit to build a hash table
|
||
|
|
to filter only OIDS you want.
|
||
|
|
Let's say, we have the following data on SNMP server:
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.1` has as value: `enp5s0`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.2` has as value: `enp5s1`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.3` has as value: `enp5s2`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.4` has as value: `eth0`
|
||
|
|
- OID: `.1.3.6.1.2.1.31.1.1.1.1.5` has as value: `eth1`
|
||
|
|
|
||
|
|
The plugin will build the following hash table:
|
||
|
|
|
||
|
|
| instance name | instance id |
|
||
|
|
|---------------|-------------|
|
||
|
|
| `enp5s0` | `1` |
|
||
|
|
| `enp5s1` | `2` |
|
||
|
|
| `enp5s2` | `3` |
|
||
|
|
| `eth0` | `4` |
|
||
|
|
| `eth1` | `5` |
|
||
|
|
|
||
|
|
With the **include_instances** attribute, the plugin will gather
|
||
|
|
the following OIDS:
|
||
|
|
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.6.5`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.1`
|
||
|
|
- `.1.3.6.1.2.1.31.1.1.1.10.5`
|
||
|
|
|
||
|
|
Note: the plugin will add instance name as tag *instance*
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
```toml
|
||
|
|
# Table with both mapping and subtable example
|
||
|
|
[[inputs.snmp]]
|
||
|
|
## Use 'oids.txt' file to translate oids to names
|
||
|
|
## To generate 'oids.txt' you need to run:
|
||
|
|
## snmptranslate -m all -Tz -On | sed -e 's/"//g' > /tmp/oids.txt
|
||
|
|
## Or if you have an other MIB folder with custom MIBs
|
||
|
|
## snmptranslate -M /mycustommibfolder -Tz -On -m all | sed -e 's/"//g' > oids.txt
|
||
|
|
snmptranslate_file = "/tmp/oids.txt"
|
||
|
|
[[inputs.snmp.host]]
|
||
|
|
address = "127.0.0.1:161"
|
||
|
|
# SNMP community
|
||
|
|
community = "public" # default public
|
||
|
|
# SNMP version (1, 2 or 3)
|
||
|
|
# Version 3 not supported yet
|
||
|
|
version = 2 # default 2
|
||
|
|
# Which table do you want to collect
|
||
|
|
[[inputs.snmp.host.table]]
|
||
|
|
name = "iftable4"
|
||
|
|
include_instances = ["enp5s0", "eth1"]
|
||
|
|
|
||
|
|
# table with both mapping and subtables
|
||
|
|
[[inputs.snmp.table]]
|
||
|
|
name = "iftable4"
|
||
|
|
# if empty get all instances
|
||
|
|
mapping_table = ".1.3.6.1.2.1.31.1.1.1.1"
|
||
|
|
# if empty get all subtables
|
||
|
|
# sub_tables could be not "real subtables"
|
||
|
|
sub_tables=[".1.3.6.1.2.1.2.2.1.13", "bytes_recv", "bytes_send"]
|
||
|
|
# note
|
||
|
|
# oid attribute is useless
|
||
|
|
|
||
|
|
# SNMP SUBTABLES
|
||
|
|
[[inputs.snmp.subtable]]
|
||
|
|
name = "bytes_recv"
|
||
|
|
oid = ".1.3.6.1.2.1.31.1.1.1.6"
|
||
|
|
unit = "octets"
|
||
|
|
|
||
|
|
[[inputs.snmp.subtable]]
|
||
|
|
name = "bytes_send"
|
||
|
|
oid = ".1.3.6.1.2.1.31.1.1.1.10"
|
||
|
|
unit = "octets"
|
||
|
|
```
|
||
|
|
|
||
|
|
#### Configuration notes
|
||
|
|
|
||
|
|
- In **inputs.snmp.table** section, the `oid` attribute is useless if
|
||
|
|
the `sub_tables` attributes is defined
|
||
|
|
|
||
|
|
- In **inputs.snmp.subtable** section, you can put a name from `snmptranslate_file`
|
||
|
|
as `oid` attribute instead of a valid OID
|
||
|
|
|
||
|
|
### Measurements & Fields:
|
||
|
|
|
||
|
|
With the last example (Table with both mapping and subtable example):
|
||
|
|
|
||
|
|
- ifHCOutOctets
|
||
|
|
- ifHCOutOctets
|
||
|
|
- ifInDiscards
|
||
|
|
- ifInDiscards
|
||
|
|
- ifHCInOctets
|
||
|
|
- ifHCInOctets
|
||
|
|
|
||
|
|
### Tags:
|
||
|
|
|
||
|
|
With the last example (Table with both mapping and subtable example):
|
||
|
|
|
||
|
|
- ifHCOutOctets
|
||
|
|
- host
|
||
|
|
- instance
|
||
|
|
- unit
|
||
|
|
- ifInDiscards
|
||
|
|
- host
|
||
|
|
- instance
|
||
|
|
- ifHCInOctets
|
||
|
|
- host
|
||
|
|
- instance
|
||
|
|
- unit
|
||
|
|
|
||
|
|
### Example Output:
|
||
|
|
|
||
|
|
With the last example (Table with both mapping and subtable example):
|
||
|
|
|
||
|
|
```
|
||
|
|
ifHCOutOctets,host=127.0.0.1,instance=enp5s0,unit=octets ifHCOutOctets=10565628i 1456878706044462901
|
||
|
|
ifInDiscards,host=127.0.0.1,instance=enp5s0 ifInDiscards=0i 1456878706044510264
|
||
|
|
ifHCInOctets,host=127.0.0.1,instance=enp5s0,unit=octets ifHCInOctets=76351777i 1456878706044531312
|
||
|
|
```
|