This MIB module defines objects for network and system
information of Global Server Load Balancer(GSLB) as a
network device.  A GSLB device is used to allocate the
least-loaded and proximate resource to the requester.
The MIB objects define information about GLSB status,
GSLB's peers (other GSLB devices available on its
network with which it interacts) information & status,
GSLB's proximity information related statistics, etc.
Further it defines related notifications.

Acronyms and their description:

DNS          : Domain Name Service (RFC1035).

D-proxy      : Local DNS name server of the client.

Proximity    : Refers to the distance or delay, in terms
               of network topology and not geographic
               distance, between the requesting client's
               D-proxy and the resources corresponding
               to that request.

Proximity    : To respond to DNS requests with the most
probing        proximate answers, the GSLB device
               communicates with a probing device located
               in each proximity zone to gather round-trip
               time (RTT) metric information measured
               between the requesting client's D-proxy 
               and the zone.  The GSLB device then directs
               client requests to an available resource
               with the lowest RTT value.

Probed       : This is the device to which the GSLB device
device         sends a proximity probe. This is done to
               learn the proximity of the device.

DRP          : Director Response Protocol (DRP) is a
               simple User Datagram Protocol (UDP)
               based application developed by
               Cisco Systems, Inc.  DRP enables
               Cisco Distributed-Director product to
               perform global load distribution and
               content routing in a sophisticated manner
               that accounts for server availability,
               relative client-to-server topological
               proximities, and client-to-server link
               latency to determine the best server.
               Using routing table intelligence in the
               network infrastructure, Distributed-Director
               transparently redirects end-user service
               requests to the closest server, as
               determined by client-to-server topological
               proximity or client-to-server link latency,
               resulting in increased access performance
               seen by the end user.

Region       : Higher-level geographical groupings that
               may contain one or more locations.  Each
               location should be assigned to a region.

Location     : Grouping for devices with common
               geographical attributes.  A location is
               assigned to a region.
               A location is also assigned to a zone,
               which is used for proximity probing.

Zone         : A network can be logically partioned into
               zones based on the arrangement of devices
               and network partion characteristics.
               A zone can be geographically related to
               data centers in a continent, a country,
               or a major city.  All devices, such as web
               servers in a data center, that are located
               in the same zone have the same proximity
               value when communicating with other areas
               of the Internet.  Within each zone, there
               is an active probing device that is
               configured to accept probing instructions
               from any GSLB device.  Probing here refers
               to the process of measuring RTT from one
               probing device to a requesting D-proxy.