TRUE
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 the delay timer 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.
The default setting is 3 seconds.
By default, PPP starts LCP negotiation after the physical layer is up.