Troubleshooting Frame Relay
409
Frame Relay debug Commands
As always, you must exercise caution when using debug commands, due to
the amount of output they can generate. The more traffic that exists on an
interface, the more output that will be generated on the router. The com-
mands that will be discussed in this section are as follows:
debug frame-relay lmi
debug frame-relay events
debug frame-relay lmi
An LMI Frame Relay debug displays LMI exchange information. The
exchange consists of LMI status enquiries and responses, including sequenc-
ing numbers. Here is a sample:
Router_B#debug frame-relay lmi
Frame Relay LMI debugging is on
Displaying all Frame Relay LMI data
Serial0(out): StEnq, myseq 142, yourseen 141, DTE up
datagramstart = 0x40081DA0, datagramsize = 13
FR encap = 0xFCF10309
00 75 01 01 01 03 02 8E 8D
Serial0(in): Status, myseq 142
RT IE 1, length 1, type 1
KA IE 3, length 2, yourseq 142, myseq 142
Serial1(out): StEnq, myseq 9, yourseen 15, DTE up
datagramstart = 0x40000528, datagramsize = 13
FR encap = 0xFCF10309
00 75 01 01 01 03 02 09 0F
Serial1(in): Status, myseq 9
RT IE 1, length 1, type 1
KA IE 3, length 2, yourseq 16, myseq 9
Serial2(out): StEnq, myseq 254, yourseen 254, DTE up
datagramstart = 0x40000528, datagramsize = 13
FR encap = 0xFCF10309
00 75 01 01 01 03 02 FE FE
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