Command:

debug frame-relay packet


Mode:

Router#


Syntax:

debug frame-relay packet [interface name [dlci value]]

no debug frame-relay packet [interface name [dlci value]]

 

Syntax Description:

interface name (Optional) Name of interface or subinterface.
dlci value (Optional) Data-link connection indentifier (DLCI) decimal value.

 

Command Description:

To display information on packets that have been sent on a Frame Relay interface, use the debug frame-relay packet privileged EXEC command. The no form of this command disables debugging output.

This command helps you analyze the packets that are sent on a Frame Relay interface. Because the debug frame-relay packet command generates a substantial amount of output, only use it when traffic on the Frame Relay network is fewer than 25 packets per second. Use the options to limit the debugging output to a specific DLCI or interface.

To analyze the packets received on a Frame Relay interface, use the debug frame-relay command.


Example:

The following is sample output from the debug frame-relay packet command:

Router# debug frame-relay packets
Serial0: broadcast = 1, link 809B, addr 65535.255
Serial0(o):DLCI 500 type 809B size 24
Serial0: broadcast - 0, link 809B, addr 10.2
Serial0(o):DLCI 100 type 809B size 104
Serial0: broadcast search
Serial0(o):DLCI 300 type 809B size 24
Serial0(o):DLCI 400 type 809B size 24

The debug frame-relay packet output consists of groups of output lines; each group describes a Frame Relay packet that has been sent. The number of lines in the group can vary, depending on the number of DLCIs on which the packet was sent. For example, the first two pairs of output lines describe two different packets, both of which were sent out on a single DLCI. The last three lines describe a single Frame Relay packet that was sent out on two DLCIs.

The following lines describe a Frame Relay packet sent to a particular address; in this case AppleTalk address 10.2:

Serial0: broadcast - 0, link 809B, addr 10.2
Serial0(o):DLCI 100 type 809B size 104

The following lines describe a Frame Relay packet that went out on two different DLCIs, because two Frame Relay map entries were found:

Serial0: broadcast search
Serial0(o):DLCI 300 type 809B size 24
Serial0(o):DLCI 400 type 809B size 24

The following lines do not appear. They describe a Frame Relay packet sent to a true broadcast address.

Serial1: broadcast search
Serial1(o):DLCI 400 type 800 size 288


Misconceptions:

None.


Related Commands:

None.


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