HP MSR2000/3000/4000 Router Series Layer 2 - WAN Configuration Guide

6
Ste
p
Command Remarks
3. Configure a username for
the CHAP peer.
ppp chap user username
The default setting is null.
The username you configure on
the peer must be the same as the
local username you configure for
the peer on the authenticator.
4. Set the CHAP authentication
password.
ppp chap password { cipher |
simple } password
The default setting is null.
The password you set on the peer
must be the same as the password
you set for the peer on the
authenticator.
Configuring the polling interval
The polling interval specifies the interval at which an interface sends keepalive packets. If an interface
uses PPP as the link layer protocol, the link layer periodically sends keepalive packets to the peer. If the
peer fails to receive keepalive packets within 10 keepalive intervals, it considers the link faulty and
reports a link layer down event. As a result, the link is closed.
Do not set too small an interval for low-speed links. On a low-speed link, it might take a long time for
large packets to be delivered, which can delay sending and receiving of keepalive packets.
To disable sending of keepalive packets, set this interval to 0.
To configure the polling interval:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type interface-number N/A
3. Configure the polling
interval.
timer-hold seconds The default setting is 10 seconds.
Configuring PPP negotiation
PPP negotiation parameters that can be configured are as follows:
• Negotiation timeout time
• IP address negotiation
• DNS server IP address negotiation
Configuring the PPP negotiation timeout time
During PPP negotiation, if no response is received from the peer during a specific period after the local
device sends a packet, the device sends the packet again. The period is known as negotiation timeout
time, which is in the range of 1 to 10 seconds.
To configure the PPP negotiation timeout time: