Service manual

Encore — Configuration Manual 309
Overview
How Tie-Line Manager Works
The Tie-Line Manager application does not control routing matrices
directly. For system tie-lines, Tie-Line Manager works in conjunction with
the Router Controllers of the matrices involved the tie-line path. When a
Router Controller receives a panel or other request to connect a Destination
in its matrix to a Source outside its matrix (which is inaccessible directly), it
sends a request to Tie-Line Manager. Tie-Line Manager then checks glob
-
ally for that Source, finds an available tie-line, and then issues appropriate
commands over the network to the required Router Controllers to create
that route. Because wider searches are involved, multiple tie-line hops can
greatly increase the processing requirements for finding tie-line paths. You
should configure the minimum number of hops possible to meet your tie-
line path requirements. We also recommend running Tie-Line Manager on
a dedicated processor, especially if multiple-hops are allowed.
TLM messages are time stamped when logged to the console, which can
assist with troubleshooting.
Tie-Line Properties and Restrictions
• Tie-line Sources are router Destinations, and tie-line Destinations are
router Sources.
• Each hop can use only a single tie-line. It is not possible to use multiple
tie-lines providing different Levels within a hop.
• Local tie-lines can link the matrices of one Router Controller, but are
still managed by the Tie-Line Manager.
• Overall operation of tie-lines can be configured to have:
Auto Ownership - When the Tie-Line Manager learns over the network that
a route has happened which uses a tie-line, it adds that Destination as
a user of that tie-line.
Share Reserved - Allows another user to use a reserved tie-line if it calls
for the same Source as the reserved user.
Don’t Care Lvls - Allows tie-lines to be established using a tie-line Source
(router Destination) with Levels that don’t match those of the tie-line
Destination (router Source).
Park Ties on Release - Each physical matrix may have a Source configured
as its park input, which can be selected automatically when a tie-line is
released.
• Tie-lines use the best path (of all possible paths) when Tie Lines of type
Rooms (vs. Sharing) are used along with other types of Tie Line.