Simple Network Management Protocol (SNMP) is a protocol that enables the management of many network devices over the network from a remote management station (SNMP manager).

The manager station can request data from the managed stations (SNMP agents) or it can change the value of data on the agents.

The managed stations (SNMP agents) can also be set up to alert the manager when some predefined events occur, such as a unit failover. The alerting mechanism uses event traps.

The current version is SNMPv3. The two previous revisions in use are SNMPv1 and SNMPv2c (community-based SNMPv2).

The SNMP support of the LoadMaster is based on SNMPv3, and is backwards-compatible such that all three of the above versions can be used. However, since SNMPv1 does not support 64bit-values (as used in the LoadMaster Management Information Base (MIB)), it is recommended to use SNMPv2c or SNMPv3. MsgSecurity is supported only with SNMP v1 and v2c.

Note: When monitoring the LoadMaster in HA mode please monitor individual appliances by the appropriate Ethernet address.

The information regarding all LoadMaster-specific data objects is stored in the enterprise-specific MIBs listed below.

ONE4NET-MIB.txt

enterprise id

IPVS-MIB.txt

Virtual Server stats

B-100-MIB.txt

LoadMaster configuration data
CERTS-MIB.txt SSL certificate information

These MIBs need to be installed on the SNMP manager machine in order to be able to request the performance/config-data of the LoadMaster using SNMP.

SNMP is supported on both IPv4 and IPv6 Virtual Services at both Layer 4 and Layer 7.

The SNMP support is disabled by default.

You can retrieve SSL certificate information including the file name, certificate Subject Name, certificate serial number, certificate start date, certificate end date, and certificate issuer information using SNMP. SNMP can display this information for up to 256 SSL certificates.

You can also retrieve disk space usage details using SNMP. The /var/log and /var/log/userlog partition information is available.