Service manual

308 Encore — Configuration Manual
Section 7 — Tie-Line Manager
Source of the receiving matrix. The same tie-line name is given to both the
Source and Destination ends of the tie-line, and that shared name defines
the two components of that tie-line.
Tie-Line Terminology
Floating Tie-Line - The tie-line is usable by all, and is used and released as nec-
essary. Tie-lines are released when all Destination users of the tie-line
become routed to different Sources. All users of a Floating tie-line are con
-
sidered equal. A Floating tie-line will not be released until all its users are
gone. A Destination, having acquired a remote Source, will never lose that
Source on a floating tie-line.
Reserved Tie-Line - The tie-line is allocated for use by the specified Destina-
tion. This tie-line will not be used unless the Destination requesting the tie-
line matches the configured Destination. The system option “Share
Reserved” allows a different user to use this tie-line if he requires the same
Source as the reserved user. However, the reserved user has full rights to
move the tie-line Source unconditionally.
Fixed Tie-Line - The Source of the tie-line is permanently fixed to that speci-
fied Destination. If a Destination requires a particular Source, fixed tie-lines
are preferable to floating ones, as they are guaranteed to remain routed to
that Source.
Ultimate Source - The original router Source in the first sending matrix is
called the ultimate Source for that tie-line.
Local Source - The Source in that local router for a tie-line. On multiple-hop
tie-lines the local Source will be different from the ultimate Source.
Ultimate Destination - The final Destination in the last receiving matrix is
called the ultimate Destination for that tie-line.
User - A user of a tie-line is a Destination that currently has a Source routed
to it through that tie-line. A tie-line may have multiple users.
The Tie-Line Manager Application
The Tie-Line Manager application makes tie-line functionality transparent
to the operator, automatically assigning and freeing tie-lines as needed.
Because Tie-Line Manager spans an entire facility, crossing Area bound
-
aries, only one instance of Tie-Line Manager can run at a time. The only
exception to this when a Mirrored Tie-Line Manager is used as backup.
Besides handling tie-line operations, the Tie-Line Manager application is
also used to configure tie-lines, defining how they will operate in your
system. The connections used for tie-lines by each matrix are defined with
the Router Control application when Sources and Destination are created
for that matrix.