Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual page 611

ppp log
ppp magic-number disable
Copyright © 2010, Juniper Networks, Inc.
Use to specify the keepalive timeout value.
This command always operates in high-density keepalive mode when PPP is layered
over ATM or PPPoE.
When the keepalive timer expires, the interface searches for frames received from the
peer in the prior keepalive timeout seconds. If the interface finds such frames, it does
not send an LCP echo request (keepalive). Keepalive packets are sent only if the peer
is silent (no traffic was received from the peer during the previous keepalive timeout
interval). If both sides are configured with keepalive, receipt of an LCP echo request
by one end suppresses the transmission of an LCP echo request by that end.
You can specify a timeout value in the range 30–64800 seconds. The default value
is 30 seconds.
If the keepalive interval is 30 seconds, a failed link is detected between 90 and 120
seconds after failure.
Use ppp keepalive without a value to restore the default, 30 seconds.
Example
host1(config-profile)#ppp keepalive 50
Use the no version to disable keepalive.
See ppp keepalive.
Use to enable PPP packet or state machine logging on any dynamic interface that uses
the profile being configured. Specify one of the following keywords:
pppPacket—Enables PPP packet logging
pppStateMachine—Enables PPP state machine logging
Example
host1(config-profile)#ppp log pppPacket
NOTE: This command is equivalent to the log severity debug pppPacket and log
severity debug pppStateMachine commands.
Use the no version to disable packet or state machine logging.
See ppp log.
Use to disable negotiation of the local magic number.
Issuing this command prevents the router from detecting loopback configurations.
Example
host1(config-profile)#ppp magic-number disable
Chapter 17: Configuring Dynamic Interfaces
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