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4 checking the configuration, 3 checking the configuration -16 – Nortel Networks 8000 User Manual

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6 PPP and MP configuration

Nortel Secure Router 8000 Series

Configuration -WAN Access

OQ NOTE

If one end adopts the authentication binding, while the other end adopts direct binding, perform the
previous configuration on the former. The later, which works as the authenticated, only needs to be

configured with MP direct binding through the VT. For details, see Configuring MP direct binding

through the VT.

Step 4 Choose one of the following methods to restart the interface.

Run the

shutdown and undo shutdown commands.

Run the

restart command.

When the interface is bound to the VT:

If LCP of the physical interface is in the Opened state, you must run the

shutdown and

undo shutdown commands or run the restart command on the physical interface to

restart the interface, so that the LCP negotiation is re-enabled to ensure that the physical

interface is successfully bound to the MP.

If the LCP negotiation on the physical interface fails and is still in the negotiation stage,

you need not restart the physical interface.

CD NOTE

To ensure that the physical interface is bound successfully to MP, Nortel recommends for you to restart

all the physical interfaces after all the bindings are configured.

—End

After running the

undo ppp mp command succeeds in the interface view, the MP binding is

deleted on the interface. At this time, you need not to restart the interface because the PPP

protocol can carry out auto-negotiation till the link layer status of the interface turns Up.

There are about 40 seconds from running the command to the Up status of the link layer

protocol.

6.7.4 Checking the configuration

Run the following commands to check the previous configuration.

Action

Command

Check the status of the VT.

display interface virtual-template [

number

]

Check the MP binding

information.

display ppp mp [ interface

interface-type

interface-number

]

Run the

display interface virtual-template command to the check status about a VT. For

example:

display interface Virtual-Template 1

Virtual-Template1 current state : UP

Line protocol current state :UP (spoofing)

Description : Huawei, Quidway Series, Virtual-Template1 Interface

The Maximum Transmit Unit is 1500 bytes

Internet protocol processing : disabled

Link layer protocol is PPP

LCP initial

Physical is None, baudrate is 64000 bps

6-32

Nortel Networks Inc.

Issue 5.3 (30 March 2009)