9
Restrictions and guidelines
On a slow link, increase the keepalive interval to prevent false shutdown of the interface. This
situation might occur when keepalive packets are delayed because a large packet is being
transmitted on the link.
The keepalive interval must be smaller than the negotiation timeout time.
Procedure
1.
Enter system view.
system-view
2.
Enter interface view.
interface interface-type interface-number
3.
Set the keepalive interval.
timer-hold
seconds
The default setting is 10 seconds.
4.
Set the keepalive retry limit.
timer-hold retry
retries
The default setting is 5.
Configuring PPP negotiation
Configuring the PPP negotiation timeout time
About PPP negotiation timeout time
The device starts the PPP negotiation timeout timer after sending a packet. If no response is
received before the timer expires, the device sends the packet again.
If two ends of a PPP link vary greatly in the LCP negotiation packet processing rate, configure this
command on the end with a higher processing rate. The LCP negotiation delay timer prevents
frequent LCP negotiation packet retransmission. After the physical layer comes up, PPP starts LCP
negotiation when the delay timer expires. If PPP receives LCP negotiation packets before the delay
timer expires, it starts LCP negotiation immediately.
Procedure
1.
Enter system view.
system-view
2.
Enter interface view.
interface interface-type interface-number
3.
Configure the negotiation timeout time.
ppp timer negotiate seconds
The default setting is 3 seconds.
4.
(Optional.) Set the LCP negotiation delay timer.
ppp
lcp
delay milliseconds
By default, PPP starts LCP negotiation immediately after the physical layer comes up.
Configuring IP address negotiation on the client
1.
Enter system view.
