SpectraLink SVP100 - Manual (Page 7)

SpectraLink Corporation Installation, Configuration, and Administration
NetLink SVP Server (within IP environments)
PN: 72-0178-01-F.doc Page 7
The internal gatekeeper is not designed to scale beyond the capacity of a single SVP
Server and does not provide the advanced features required for larger installations. It
has a limit of 1000 registration records.
2.5 Multiple SVP Servers/Master SVP Server
Multiple SVP Server environments are those which have more than one NetLink
SVP Server. Up to four SVP010 models or up to two SVP020 models may be
installed in any one subnet. Up to 16 models of SVP100 Servers may be installed in
any one subnet. All SVP Servers must be in the same subnet.
In a system comprised of multiple SVP Servers, a master SVP Server must be
identified. The master SVP Server must have a static IP address. The wireless
telephones and the other SVP Servers locate the master by using a static IP address,
DHCP, or DNS.
The master SVP Server performs important coordinating functions. The loss of a
non-master SVP Server does not significantly affect the operation of the remaining
SVP Servers but results in the re boot of all handsets. However, the loss of the
master SVP Server results in a loss of all communication between all of the SVP
Servers. This also means that the loss of the master SVP results in the loss of all
active calls and wireless telephones cannot check in until communication with the
master is reestablished.
2.6 Multiple NetLink SVP Server Capacities
The system capacity of each SVP Server model is shown in the tables below. Note
that SVP Server models may not be combined within one subnet.
NetLink SVP010 and SVP020 Server Capacity
The system capacity of the SVP010 and SVP020 is measured by number of powered-
on handsets. If this number exceeds the maximum, the handset that cannot be
served will display an error and will not connect to the SVP Server. Other handsets
will not be affected.
Number of handsets
Number of SVP
Servers SVP010 SVP020
1 10 20
2 20 40
3 30 N/A
4 40 N/A
NetLink SVP100 Server Capacity
The capacity of the SVP100 Server is determined by active calls. The table below
shows the capacity of an IP gateway in a multiple-SVP Server environment. The
table shows the total possible calls at 100% active calls. However, since it is unlikely
that all handsets will be in use at the same time, the table then analyzes the number
of handsets that could be installed in any given system where 10%, 15% or 20% of
the handsets are in active calls at any one time. The calculations are not linear due to