Practical VoIP Using VOCAL

MIBs

In a TCP/IP-based network, each device maintains a set of variables describing its state. In SNMP, these variables are known as objects, but these objects do not hold the same meaning as those within an object-oriented programming architecture. SNMP objects contain information about their state without any methods, other than the ability to read and write their values. A collection of SNMP objects is known as a Management Information Base (MIB).

As networks are built, they normally use several MIBs to describe the various structures within the overall architecture. It is more common for developers to use public MIBs for the nonproprietary components of their system and to build their own for the proprietary components.

The VOCAL system supports the following public MIBs:

• MIB II (refer to RFC 1213)

• Network Services Monitoring MIB

• SIP MIBs

• VOCAL Enterprise MIB

Network Services Monitoring MIB

VOCAL supports a subset of the Network Services Monitoring MIBs defined in RFC 2788. This includes the minimum identifiers of applications for use in other MIBs as indexes.

For more information, refer to http://vocal-1.3.0/proxies/NetworkManager/NETWORK-SERVICES-MIB.txt.

SIP MIBs

VOCAL supports an initial version of the SIP MIB dated July 2000 (draft-ieft-sip.mib-01.txt). The MIB is temporarily located under http://enterprise.vovida.vovidaTemporary until the MIB is assigned a permanent location by the Internet Assigned Numbers Authority (IANA, http://www.iana.org). For more information, ...