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Chapter 7

Troubleshooting Serial Line and Frame Relay Connectivity

The StEnq, myseq, and yourseen are similar to the data provided by the

serial

debug command. The newly introduced fields are as follows:

RT IE This is a Report Type Information Element.

KA IE This is a Keepalive Information Element.

This debug command does not generate a great deal of output, as you can

see. Therefore, it can be used even during high traffic times. Some outputs
will include more information than the sample displayed previously. Addi-
tional information includes clocking, PVC, and Committed Information
Rate detail.

debug frame-relay events

Data provided by this command is useful because it gives details about
protocols and applications using the DLCI. A sample follows. The (i) and (o)
specify inbound and outbound traffic:

Router_A#debug frame-relay events

Serial3(i): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

Serial3.6(o): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

Serial3(i): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

Serial3.6(o): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

Serial0.2(o): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

Serial3(i): dlci 1023(0xFCF1), pkt type 0x309,
datagramsize 13

The pkt type is used to distinguish the packet type that transits the

DLCI. Several different packet types may appear in the pkt type field. The
packet type tells you which applications are on the circuit.

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