Also, be sure that the other end is configured as network side. The current release only
supports user side on the Secure Router 2330/4134.
Verify the D channel status
To verify that the D channel is up, use the show interface bundle command.
Figure 63: show interface bundle sample output to verify PRI D-channel
Verify Layer 2 status
When layer 2 is up, both sides continuously send RR messages to each other.
To verify that Layer 2 is up, use the debug isdn q921 command.
Common problems and solutions
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