Cisco Troubleshooting Flash Cards
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What command generated the following output, and what does the output mean?
TX -> IDREQ ri = 14613 ai = 127
RX <- IDASSN ri = 14613 ai = 64
This is output from the debug isdn q921 command. In the first line the router requested assignment information (ai). The router set the current terminal endpoint identifier (TEI) to broadcast (127), meaning no TEI is set yet. In the second line, the ISDN switch responds with the ai set to 64. ri means reference identifier. It's used to match commands to replies.