No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

MPLS Fails to Set up LDP Session in Interconnection between NE80E and S8016

Publication Date:  2012-07-27 Views:  241 Downloads:  0
Issue Description
According to the log of NE80E, LDP session has always been: %Sep 28 06:26:41 2005 HLD_212NE80E LDP/5/LOG:Session(221.202.117.253) received notification message on Open Received state.
The attachment includes the configuration files of both equipment and the debug mpls ldp information.
Alarm Information
Null
Handling Process
1. Open the LDP DEBUG of both S8016 and NE80E, and the following information is found at S8016: "9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): HandleSessionEvent: SsnState INITIALIZED Event INT_SEND_INIT *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): HandleSessionEvent: SsnState OPEN_SENT Event RECV_INIT *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Process Initialize Message *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Processes the common session parameters tlv *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Loop Detection Admin State mismatch! *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Processing of Init Msg Failed                     ///////////////////LDP session is deleted because detection for loop does not match *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Session is being deleted! *9/28/2005 7:48:33-LDP-8-Dbg:SESSION(PeerIP:202.107.109.251): Deleting the Peer label range - session deleted 
So it is the detection for loop at both sides does not match that fails the setup of session, and the LDP session is deleted. 
2. The problem is solved by configuring LDP loop detection for NE80E, and LDP session has been set up. 
Root Cause
The detection of LDP loop does not match. 
Suggestions
Null

END