Multitech RouteFinder MTASR2-203, User Manual, Page: 39 / 90

Chapter 4 - RouteFinder Software
MTASR2-203 39
Frame Relay Setup
The Frame Relay Setup dialog box displays the Management Type, details of that management type,
and the number of DLCIs that are active. Frame Relay parameters have to be set up exactly as they
are provisioned from the network service. Therefore, it is important not to change any Frame Relay
parameters; and, when adding new DLCIs that they agree with the way your frame relay service is
provisioned.
Note: When Frame Relay Service is employed by the Telco, the Frame Relay enable option must be
checked and your Frame Relay parameters must be configured (e.g., Management Type and DLCIs
provided by Telco).
In the Frame Relay Setup dialog box, you can change the Management Type by choosing one of the
three options and then the detail parameters for that option are displayed to the right of the
Management Type. For example, Annex D (See above) is the chosen management type with the Full
Status Enquiry Interval [N391] set to 6 down through Polling Verification Timer [T392] set to 15.
Occasionally the Management Type parameters may need to be changed to correct a problem. In
these cases making the following changes (aaplicable to Annex D) could alleviate the problem:
1. Change the Link Integrity Verification Timer. This feature sets how often the RouteFinder
verifies that the link is good. Changing the setting from the default value of 10 seconds, to a
lower value; e.g., 5 seconds, will increase the frequency of those verifications.
2. Change the Full Status Enquiry Interval to affect how often DCLI Status is updated. This
parameter defines how often the RouteFinder will send a request for DLCI status information along
with the Link Integrity Verification request. The default value includes such a request every sixth
time the link integrity is checked. A value less than every sixth request will allow faster detection
of active/inactive DLCIs, but will also produce a slight increase in management overhead.
3. Change the Monitored Events Count and the Error Threshold to affect the RouteFinder’s
sensitivity to errors on the link. Every management frame received by the RouteFinder is
considered an event, and if the link integrity sequence numbers are wrong, for example, it is
considered an “errored” event. With the default settings, if Error Threshold is 3 and Monitored
Events Count is 4, and 3 out of 4 events are “errored”, then the link is considered to be bad, and
the RouteFinder stops sending on all DLCIs and restarts the initial procedures to activate the link.
If you click the DLCI button, the Frame Relay DLCI dialog box is displayed.