I have to create a new connection frame relay 512 Kb/s in MAX TNT, I
created e new e1 with 8 IT, but line protocol in interface serial is
always down. when I configure this connection at 64 Kb/s with the second
IT, the serial is UP,
and the same connection 64 Kb/s with the thierd IT the serial is DOWN.
please help me and give me advices for running this connection.