Avaya ESS User Manual page 73

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Important:
It is important to note that the administration of Local Only, does not affect an
Important:
ESS server's priority but does limit which IPSI list will contain the Local Only
server.
A priority value, entered in the Pri Scr column, is used to distinguish between ESS servers with
the same preference settings, ESS servers with no preference setting, or ESS servers that are
not in the same community as the IPSI.
See Table 2 for a list of ESS servers relative priorities. The ESS server types listed in
are in order from highest to lowest value.
.
Table 2: ESS relative priority
Administered ESS server
type
System Preferred server
Local Preferred servers in
the same community
Local Preferred and Local
Only server in the same
community
Local Preferred server
outside its administered
community
Local Only server
Priority value impact
System Preferred servers will have a higher value than any
other Local Preferred server independent of community or
administered priority value. If multiple System Preferred
servers are administered, the server with the highest
administered priority value will have the top priority on an
IPSI's list.
After the System Preferred preference, the Local Preferred
preference has the second highest value within an IPSI
community. If multiple Local Preferred servers are
administered, the server with the highest administered
priority value will have the top priority on an IPSI's list.
An ESS server administered with both the Local Preferred
preference and Local Only will have the value of a Local
Preferred server but can only advertise to IPSIs within its
community.
The Local Preferred preference has no value outside its
administered community. When outside the administered
community, the value of the Local Preferred server is based
solely on its priority value.
A Local Only server only advertises to the IPSI within its
community. The value of a Local Only server is based solely
on its priority value. If a Local Preferred server (outside its
administered community), or an ESS server with no
preference, advertised to an IPSI in the same community as
a Local Only server, the priority score of each server would
determine its ranking on the IPSI's priority list.
IPSI Priority List
Table 2
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Issue 1.1 June 2005 73