Phrych at 10:26, 20 June 2019

2019-06-20T10:26:47Z

Phrych: Created page with "{{DISPLAYTITLE:function snmpGet()}} Execute SNMP GET call to given host and oid to read the response. The call is asynchronous: the code execution proceeds immediately and whe..."

2019-06-19T14:25:52Z

Created page with "{{DISPLAYTITLE:function snmpGet()}} Execute SNMP GET call to given host and oid to read the response. The call is asynchronous: the code execution proceeds immediately and whe..."

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{{DISPLAYTITLE:function snmpGet()}}
Execute SNMP GET call to given host and oid to read the response. The call is asynchronous: the code execution proceeds immediately and when the response arrives, callback function is called.

nil devices.system.snmpGet(table <code>config</code>)

=== Parameters ===
table config{<code>host</code>, <code>oid</code>, <code>callback</code>, <code>snmpVersion</code>,<code>community</code>, <code style="color: #777">timeout</code>}
* string <code>host</code> host IP adress, may contain transport protocol and port (for example tcp:myhost.com:162)
* string <code>oid</code> object identifier
* function{response} <code>callback</code> this function is called when response arrives
* string <code>snmpVersion</code> version of SNMP (SNMP_VERSION.Snmp1 or SNMP_VERSION.Snmp2c)
* string <code>community</code> SNMP community string
* optional number <code>timeout</code> maximum seconds to wait for response (default 30)

=== Callback Parameters ===
table response{<code>result</code>, <code>errorInfo</code>, <code>oid</code>, <code>value</code>}
* number <code>result</code> error code of the response (0 is success)
* string <code>errorInfo</code> error description (if result>0)
* string <code>oid</code> oid we got
* string <code>value</code> value for the oid

=== Return value ===
nil

=== Usage ===
-- switch all outputs on NETIO with IP in 'host' parameter
local function snmpcallback(data)
if data.result == 0 then
output=tonumber(string.sub(data.oid, -1))
outputStatus=tonumber(data.value)
devices.system.SetOut{output=output, value=(outputStatus == 0)}
else
log(string.format("snmpget failed with error %d: %s", data.result, data.errorInfo))
end
end

for i = 1,4 do
snmpGet{host='10.0.0.102', timeout=6, oid=string.format(".1.3.6.1.4.1.47952.1.1.1.3.%d", i), snmpVersion=SNMP_VERSION.Snmp1, community='public', callback=snmpcallback}
end

=== Requirements ===
Netio FirmWare 3.3.0+

__NOTOC__

@@ Line 2: / Line 2: @@
 Execute SNMP GET call to given host and oid to read the response. The call is asynchronous: the code execution proceeds immediately and when the response arrives, callback function is called.
-  <i>nil</i> <b>devices.system.snmpGet</b>(<i>table</i> <code>config</code>)
+  <i>nil</i> <b>snmpGet</b>(<i>table</i> <code>config</code>)
 === Parameters ===

Function snmpGet() - Revision history

Phrych at 10:26, 20 June 2019

Phrych: Created page with "{{DISPLAYTITLE:function snmpGet()}} Execute SNMP GET call to given host and oid to read the response. The call is asynchronous: the code execution proceeds immediately and whe..."