The debug Commands

An excellent although dangerous tool in troubleshooting and monitoring the network is the debug command. Care should be exercised in the use of this command because it can be very greedy in terms of the resources that it consumes. It should be used only for a specific option and a finite time.

The options available for monitoring EIGRP are covered in Table 7-8.

Table 7-8 debug Command Options for EIGRP

The options available for monitoring EIGRP are covered in Table 7-8.

Table 7-8 debug Command Options for EIGRP

Command Option

Description

debug eigrp packet

Shows the packets sent and received by the router. The packet types to be

monitored can be selected. Up to 11 types are available.

debug eigrp neighbors

Shows the hello packets sent and received by the router and the neighbors

discovered by this process.

debug ip eigrp route

Is the default if the command debug ip eigrp is issued. Shows dynamic

changes made to the routing table.

debug ip eigrp summary

Shows a summary of the EIGRP activity, including neighbors, distance,

filtering, and redistribution.

show eigrp events

Shows the types of packets sent and received and statistics on routing

decisions.

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