PPPoE协商过程中LCP协商结束状态由OPEN变为STOP

在完成LCP协商后，状态变为OPEN，紧接着就变为了STOP状态是什么问题造成的呢？

STOP状态后又开始发PADI拨号

*Jan 1 00:45:24:553 2011 pppoe client PPP/7/FSM_STATE_0: PPP State Change: Virtual-Access0 LCP: ackrcvd --> opened

 *Jan 1 00:45:24:554 2011 pppoe client PPP/7/FSM_PACKET_0: PPP Packet: Virtual-Access0 Input LCP(c021) Packet, PktLen 8 Current State opened, code TermReq(05), id 3, len 4 

 *Jan 1 00:45:24:554 2011 pppoe client PPP/7/FSM_EVENT_0: PPP Event: Virtual-Access0 LCP RTR(Receive Terminate Request) Event State opened *Jan 1 00:45:24:554 2011 pppoe client PPP/7/FSM_STATE_0: PPP State Change: Virtual-Access0 LCP: opened --> stopping 

 *Jan 1 00:45:24:554 2011 pppoe client PPP/7/FSM_PACKET_0: PPP Packet: Virtual-Access0 Output LCP(c021) Packet, PktLen 8 Current State stopping, code TermAck(06), id 3, len 4 

 *Jan 1 00:45:24:555 2011 pppoe client PPPOEC/7/PACKET: Received a PADT packet on interface GE0/0, length 46.

 11 a7 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 

*Jan 1 00:45:24:555 2011 pppoe client PPPOEC/7/EVENT: Successfully sent a dialer message(DDR_DIALPRIM_DISCONN_IND), bundle 0. 

*Jan 1 00:45:24:555 2011 pppoe client PPPOEC/7/EVENT: The session state transferred from SESSION to IDLE, bundle 0. 

%Jan 1 00:45:24:563 2011 pppoe client IFNET/5/LINK_UPDOWN: Line protocol state on the interface Virtual-Access0 changed to up. 

%Jan 1 00:45:24:571 2011 pppoe client IFNET/5/LINK_UPDOWN: Line protocol state on the interface Virtual-Access0 changed to down. 

%Jan 1 00:45:24:571 2011 pppoe client IFNET/3/PHY_UPDOWN: Physical state on the interface Virtual-Access0 changed to down. 

*Jan 1 00:45:24:577 2011 pppoe client PPP/7/EXTERNAL_EVENT_0: