HP MSR2000/3000/4000 Router Series Interface Configuration Guide

13
Configuration procedure
The configuration of AM interface is similar to that of asynchronous interface and modem, except that an
AM interface does not support the modem auto-answer and the baudrate commands. For more
information about modem configuration, see Layer 2—WAN Configuration Guide.
To set the baud rate for an AM interface, use the speed command in user line view. For more information,
see Fundamentals Configuration Guide.
Configure PPP, DDR, IP address, firewall, and interface backup on the AM interface if the network
requires.
To configure an AM interface:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter AM interface view.
interface analogmodem
interface-number
N/A
3. Set the coding format of the
modem.
country-code area-name The default is united-states.
4. (Optional.) Set the interface
description.
description text
By default, the description of an
AM interface is interface name
Interface, for example,
Analogmodem6/3/0 Interface.
5. Set the operating mode.
async mode { flow | protocol }
By default, an AM interface
operates in flow mode.
When an AM interface is
operating in flow mode, no link
layer protocol is available. When
operating in protocol mode, it uses
PPP as the link layer protocol.
6. (Optional.) Enable local
loopback.
loopback
By default, local loopback is
disabled.
7. Set the MTU.
mtu size The default is 1500 bytes.
8. Set the keepalive transmission
interval.
timer-hold seconds The default is 10 seconds.
9. Set the MRU for an AM
interface operating in flow
mode.
phy-mru mrusize The default MRU is 1700 bytes.
10. (Optional.) Set the intended
bandwidth for the AM
interface.
bandwidth bandwidth-value
By default, the expected
bandwidth (in kbps) is the interface
baud rate divided by 1000.
11. (Optional.) Restore the default
settings for the AM interface.
default N/A
12. Bring up the AM interface.
undo shutdown By default, an AM interface is up.