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Introduction

The trap daemon is our approach to sending, receiving and processing traps in the Site Controller. It will receive the traps, filter them and send them to the corresponding gateway in the system. It will also send traps to the configured receivers. The OIDs(MIB) for trap sending are in an attached file to this document..


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Code Block
languagexml
		<device device_id="snmpZyxel_router_device">
			<trapd_device>
				<source_address>192.168.97.94</source_address>
			</trapd_device>
			<sensor_gateways>
			    <sensor_gateway sensor_gateway_id="snmpZyxel_ports">
					<trap key_filter='1.3.6.1.2.1.2.2.1.1.'>
						<OIDs>
							<OID>1.3.6.1.6.3.1.1.5.3</OID>
							<OID>1.3.6.1.6.3.1.1.5.4</OID>
						</OIDs>
					</trap>
			    </sensor_gateway>
			</sensor_gateways>
		</device>

In this configuration, the trapd will listen to any trap that starts with "1.3.6.1.2.1.2.2.1.1.", and that contain the bind variables defined in the OID parameters. Then it will create a string with the bind variables and send it to the sensor that has a "key" that matches the key_filter.

Sensor Configuration for trap receiving

Code Block
languagexml
		<sensor sensor_id="snmpZyxel_port8">
            <sensor_class>unknown</sensor_class>
            <state_evaluation_expressions>
                <state_evaluation_expression>
                    <expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.4'")</expression>
                    <true>OK</true>
                </state_evaluation_expression>
                <state_evaluation_expression>
                    <expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.3'")</expression>
                    <true>CRITICAL</true>
                </state_evaluation_expression>
            </state_evaluation_expressions>
            <sensor_gateway sensor_gateway_id="snmpZyxel_ports">
                <demux>
					<keys>
	                    <key>1.3.6.1.2.1.2.2.1.1.8</key>
					</keys>
                </demux>
            </sensor_gateway>
        </sensor>
		<sensor sensor_id="snmpZyxel_port7">
			<sensor_class>unknown</sensor_class>
			<state_evaluation_expressions>
				<state_evaluation_expression>
					<expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.4'")</expression>
					<true>OK</true>
				</state_evaluation_expression>
				<state_evaluation_expression>
					<expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.3'")</expression>
					<true>CRITICAL</true>
				</state_evaluation_expression>
			</state_evaluation_expressions>
			<sensor_gateway sensor_gateway_id="snmpZyxel_ports">
				<demux>
					<keys>
						<key>1.3.6.1.2.1.2.2.1.1.7</key>
					</keys>
				</demux>
			</sensor_gateway>
		</sensor>
		<sensor sensor_id="snmpZyxel_port6">
            <sensor_class>unknown</sensor_class>
            <state_evaluation_expressions>
                <state_evaluation_expression>
                    <expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.4'")</expression>
                    <true>OK</true>
                </state_evaluation_expression>
                <state_evaluation_expression>
                    <expression>str(value).replace('u','').__contains__("'1.3.6.1.6.3.1.1.4.1.0': '1.3.6.1.6.3.1.1.5.3'")</expression>
                    <true>CRITICAL</true>
                </state_evaluation_expression>
            </state_evaluation_expressions>
            <sensor_gateway sensor_gateway_id="snmpZyxel_ports">
                <demux>
					<keys>
	                    <key>1.3.6.1.2.1.2.2.1.1.6</key>
					</keys>
                </demux>
            </sensor_gateway>
        </sensor>

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