Troubleshooting Pppoe; Troubleshooting The Pppoe Discovery Process - HP ProCurve 7000dl Series Basic Management And Configuration Manual

ADSL WAN Connections
Troubleshooting the ADSL Connection
Syntax: debug atm oam <interface number.subinterface number> [loopback {end-to-
end | segment} {<LLID>}]
Replace <interface number.subinterface number> with the subinterface
ID for the PVC. This command displays the OAM frames for a specific PVC.
Include the loopback option to configure an OAM loopback. You have two
choices when configuring a loopback: end-to-end or segment.
You can optionally replace <LLID> with a 16-byte hexidecimal OAM loop-
back location ID (LLID).
To disable the display of OAM frames, use the no form of the command you
entered.

Troubleshooting PPPoE

If the PPPoE negotiation fails and a PPPoE session is not established, you
must first verify that the ADSL interface, the ATM interface, and ATM subinter-
face are up. You should check the status of each interface, and if any one of
the interfaces is down, follow the steps for troubleshooting that particular
interface.

Troubleshooting the PPPoE Discovery Process

After you ensure that the ADSL interface, the ATM interface, and the ATM
subinterface are up, you should check the status of the PPP interface that is
bound to the ATM subinterface. From the enable mode context, enter:
Syntax: show interfaces ppp <interface number>
If the other interfaces are up and the PPP interface is down, either the PPPoE
discovery process failed, or the PPP link establishment process failed. You
should begin to focus on the PPPoE negotiation process and determine where
the failure is occurring. To begin troubleshooting the process, move to the
enable mode context and enter:
Syntax: debug pppoe client
If you included the pppoe-client option when you entered the command to
bind the ATM subinterface to the PPP interface, the PPPoE client will contin-
ually try to establish a PPPoE session, and debug messages will be displayed
at the CLI. You can compare these messages to the PPPoE discovery process
to identify the cause of the problem.
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