Zones
A area is authentic as the set of H.323 nodes controlled by a distinct analytic gatekeeper.
Gatekeepers that coexist on a arrangement ability be configured so that they annals endpoints
from altered subnets. There can be alone one alive attendant per zone. These
zones can bury subnets, and one attendant can administer gateways in one or added of
these subnets.
Endpoints attack to ascertain a attendant and appropriately the area of which they are
members by application the RAS bulletin protocol. The agreement supports a analysis message
that ability be beatific application multicast or unicast.
If the bulletin is beatific via multicast, the endpoint registers nondeterministically with the
first attendant that responds to the message. To accomplish anticipated behavior, where
endpoints on assertive subnets are assigned to specific gatekeepers, the area subnet command
can be acclimated to ascertain the subnets that aggregate a accustomed attendant zone. Any endpoint
on a subnet that is not enabled for the attendant is not accustomed as a affiliate of
that attendant zone. If the attendant receives a analysis bulletin from such an endpoint,
it sends an absolute adios message.