User's Manual

This allows the application to create a network map and to raise an alarm when devices
previously present do not respond.
• Most SNMP manager applications can also do simple IP address polling to locate
non-SNMP enabled devices. However this method of polling does not identify the
device type or other information.
• SNMP polling including details about the responding device. For example an B5800
Branch Gateway control unit's response includes the control unit type, level of
software, routing table information, up time, etc.
• Traps: When certain events occur, a devices SNMP agent can send details of the event
to the SNMP manager. This is called an SNMP trap. These appear in the event log of the
SNMP manager. Most SNMP managers can be configured to give additional alerts in
response to particular traps.
• Management: Some SNMP agents support device management and configuration
changes through the SNMP manager interface. This is not supported by B5800 Branch
Gateway.
B5800 Branch Gateway SNMP operation has been tested against Castle Rock SNMPc-EE
5.1.6c and HP OpenView Network Node Manager 6.41.
What information is available via SNMP
As described above, SNMP information can either be polled by the SNMP application or
received as the result of the B5800 Branch Gateway sending SNMP trap information.
While the MIB files should not be edited, they can be read using a text editor and contain
descriptions of all the various information objects that can be polled or sent and the information
that each object will include. For a list of the MIB files, see
Installing the B5800 Branch Gateway
MIB files on page 237. The NOTIFICATION-TYPE objects are those used for SNMP traps.
The other types of objects are those that can be polled.
Installing the B5800 Branch Gateway MIB files
To allow full communication between an SNMP agent and an SNMP manager, the SNMP
manager must load MIB files (Management Information Base) specific to the SNMP agent
device and the features it supports. These MIB files contain details of the information the agent
can provide and the traps that it can send.
The MIB files for B5800 Branch Gateway operation are included on the B5800 Branch Gateway
DVD in the folder \AdminCD\smnp_mibs. The actual files required and the method of loading
depend on the SNMP manager application being used. The details below cover the two SNMP
manager applications supported.
SNMP
Implementing the Avaya B5800 Branch Gateway November 2011 237