4000 Router Series Layer 2 - WAN Configuration Guide

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enter interface view.

interface interface-type

interface-number

N/A

3. Configure the link status

polling interval.

timer hold seconds

Optional.

The default setting is 10 seconds.

Displaying and maintaining HDLC

Execute display commands in any view and reset commands in user view.

Task Command

Display the HDLC configuration on

an interface.

display interface serial interface-number

display interface pos interface-number

Clear the statistics and restart

statistics collection on interfaces.

reset counters interface [ serial [ interface-number ] ]

reset counters interface [ pos [ interface-number ] ]

HDLC configuration example

Network requirements

As shown in Figure 26, Router A and Router B are connected by POS interfaces.

Run HDLC on the link between them.

Figure 26 Network diagram

Configuration procedure

1. Configure Router A:

<RouterA> system-view

[RouterA] interface pos 5/0

[RouterA-Pos5/0] clock master

[RouterA-Pos5/0] link-protocol hdlc

[RouterA-Pos5/0] ip address 12.1.1.1 24

[RouterA-Pos5/0] quit

2. Configure Router B:

<RouterB> system-view

[RouterB] interface pos 5/0

Router A Router B

POS5/0

12.1.1.2/24

POS5/0

12.1.1.1/24