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Configuring the PPP Restart Timers

You can configure a restart timer for the Link Control Protocol (LCP) and Network Control Protocol (NCP) components of a PPP session. You can configure the LCP restart timer on interfaces with PPP, PPP TCC, PPP over Ethernet, PPP over ATM, and PPP over Frame Relay encapsulations. You can configure the NCP restart timer on interfaces with PPP and PPP TCC encapsulations and on multilink PPP bundle interfaces.

To configure the restart timer for the NCP component of a PPP session, include the ncp-restart-timer statement, and specify the number of milliseconds.

To configure the restart timer for the LCP component of a PPP session, include the lcp-restart-timer statement, and specify the number of milliseconds:

lcp-restart-timer milliseconds;ncp-restart-timer milliseconds;

You can include these statements at the following hierarchy levels:

  • [edit interfaces interface-name unit logical-unit-number ppp-options]
  • [edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number ppp-options]

To monitor the configuration, issue the show interfaces interface-name command. Configured options are displayed in the PPP parameters field for the physical interface.

user@host> run show interfaces t1-0/0/0:1:1.0 detail
   Logical interface t1-0/0/0:1:1.0 (Index 67) (SNMP ifIndex 40)
(Generation 156)
Flags: Hardware-Down Device-Down Point-To-Point SNMP-Traps 0x4000
Encapsulation: PPP
PPP parameters:
LCP restart timer: 2000 msec
NCP restart timer: 2000 msec
Protocol inet, MTU: 1500, Generation: 163, Route table: 0
Flags: Protocol-Down
Addresses, Flags: Dest-route-down Is-Preferred Is-Primary
Destination: 1.1.1/24, Local: 1.1.1.2, Broadcast: 1.1.1.255,

Published: 2013-08-01

Published: 2013-08-01