Vyatta NOS documentation

Learn how to install, configure, and operate Vyatta Network Operating System (Vyatta NOS), which helps to drive our virtual networking and physical platforms portfolio.

Validating LDP session reset

You can check the LDP session specific parameters to validate that a session has been successfully reset.

  • The LDP session state transitions from OPERATIONAL to NON_EXISTANT upon clearing it. However, the states may quickly transition. In this case, the show mpls ldp session command shows the current state.
  • The LDP session-specific database is cleaned upon resetting the LDP session.
  • The TCP port number on the active end of the LDP session may have been changed once the LDP session comes up after the reset; the TCP port number before and after the reset may be different.
  • Syslog logs the event of a LDP session going down and then coming back up as a result of resetting the LDP session. Use the command show log to view the syslog events.

The following example shows the use of the show mpls ldp session command to validate the LDP session reset.

vyatta@vyatta:~$ show mpls ldp session
Peer IP Address            IF Name          My Role State          KeepAlive 
5.5.5.5                    dp0p1s3          Passive OPERATIONAL    30