544 CHAPTER 35: PPP DEBUGGING COMMANDS
ipv6cp: IPv6 Control Protocol (IPv6CP) debugging.
ipx: IPX debugging.
ipxcp: IPX Control Protocol (IPXCP) debugging.
lcp: PPP Link Control Protocol (CCP) debugging.
lqc: PPP link quality control (LQC) debugging.
mp: MP debugging.
mpls-multicast: MPLS multicast debugging.
mpls-unicast: MPLS unicast debugging.
mplscp: MPLS Control Protocol (MPLSCP) debugging.
osi-npdu: OSI NPDU debugging.
osicp: OSI Control Protocol (OSICP) debugging.
pap: PAP debugging.
scp: Stac LZS debugging.
vjcomp: VJ TCP/IP header compression debugging.
error: PPP error debugging.
event: PPP event debugging.
packet: PPP packet debugging.
state: PPP state debugging.
interface-type interface-number: Specifies an interface by its type and number.
Description Use the debugging ppp command to enable PPP debugging.
Use the undo debugging ppp command to disable PPP debugging.
By default, all PPP debugging is disabled. The following tables describe some
significant output fields of PPP debugging commands.
Table88 Description on the fields of the debugging ppp event command
Field Description
event A PPP event occurred.
state The state of a PPP state machine.
Up The lower layer went up.
Down The lower layer went down.
Open The link was administratively opened.
Close The link was administratively closed.