HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual page 313

N o t e
Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces
Debug commands are processor intensive.
Table 6-12 lists the debug commands you can use to monitor PPP interfaces.
Table 6-12. Debug commands for PPP Interfaces
Command
debug ppp verbose
debug ppp errors
debug ppp negotiation
debug ppp authentication
undebug all
For example, if the status of the NCP is stopped, you may want to enter the
debug ppp negotiations command. You should be able to see each stage in
the process of establishing a PPP connection. Figure 6-23 shows the debug
messages when a PPP connection is established successfully.
Troubleshooting Logical Interfaces
Explanation
displays detailed information about all PPP frames as they
arrive on or are sent from the PPP interface
displays error messages relating to PPP
displays events relating to link negotiation; shows if link
protocols are able to open; reveals when negotiations
between two PPP peers fail
displays real-time messages relating to PAP and CHAP
turns off debug messages
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