Multitech MultiFRAD FR221 User Manual page 52

200-series router/two-port frame relay access device with 56k dsu
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MultiFRAD User Guide
When troubleshooting a frame relay circuit, once it has been established that management frames
are being sent and received, the next step is to determine whether the DLCIs are becoming active.
This dialog box will provide that information. A FRAD needs to be present at both ends for the DLCI
to be active. Keep in mind that the frame relay network tells the FRAD the status of the PVC with one
of its status responses. But the network will not say the PVC is active until it has established
management communication at both ends of the PVC. If the FRADs at both ends of the PVC show
that they are communicating with the frame relay network and the DLCI still shows active, and there
is a communication problem over that PVC, there may be a problem with your service provider. If all
DLCIs show active at both (or all) locations and there is still an end-to-end communication problem, it
is likely that it is in the configuration of the MultiFRAD. At that point, review your protocol stack/data
port parameters and DLCI mappings.
Data Port Statistics
The Data Port Statistics dialog box displays statistical information, such as bytes or blocks received/
transmitted, for the two data ports.
This window shows the statistics for both data channels. If you highlight and double-click Port 1 or
Port 2 on this screen, you will display another screen of channel statistics and various hardware
signals (RTS, CTS, DSR, DCD, DTR) and Xon/Xoff status. This second screen also displays buffer
utilization percentage and receive flow control time.
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