Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Related Documentation


    Monitoring LDP


    Display information about LDP.


    To display LDP information:

    host1#show ldp
      LSR ID is
      FEC Deaggregation is off
      Egress label: implicit-null
      Label distribution control mode: ordered control
      LDP session retry  0 times at interval 10
      LDP session hold time: 180
      LDP session keepalive interval: 20
      LDP targeted-hello hold time: 45
      LDP targeted-hello interval: 15
      Topology Driven LSP enabled 
      LSPs used for IP forwarding
          for host addresses only

    Note: The mpls keyword is optional and is provided for compatibility with non–E Series implementations.


    Table 1 lists the show ldp command output fields.

    Table 1: show ldp Output Fields

    Field Name

    Field Description

    LSR ID

    IP address of label-switched router

    FEC Deaggregation

    State of FEC deaggregation, on or off

    Egress label

    Type of label advertised for the LSR that is the egress router for the prefix, implicit null, explicit null, or a non-null label

    Label distribution control mode

    Label distribution control mode used by LDP for label distribution, independent control, or ordered control

    LDP session retry

    Configured values for the number of LDP session retry attempts and the retry interval

    LDP session hold time

    Configured value for the LDP session hold time

    LDP session keepalive interval

    Interval at which LDP sends session keepalive messages, in seconds

    LDP targeted-hello hold time

    LDP targeted-hello hold time, in seconds

    LDP targeted-hello interval

    LDP targeted-hello interval, in seconds

    Topology Driven LSP

    Status of topology-driven LSP, enabled or disabled

    LSPs used for IP forwarding

    LSPs are placed in the IP routing table for forwarding plain IP traffic; displayed only when the mpls ldp ip-forwarding command has been configured. Indicates whether the LSPs that are used for IP forwarding are host only, subject to a specified access list, or subject to a specified prefix list.

    LDP proto stats

    LDP protocol statistics


    Number of LDP peers discovered


    Number of LDP adjacencies established


    Number of LDP sessions established


    Number of FEC elements


    Number of FECs


    Number of in labels (sent to upstream neighbor)


    Number of out labels (received from downstream neighbor)


    Number of constraint-based routed LSPs set up


    Number of constraint-based routed LSPs deleted


    Related Documentation


    Published: 2014-08-18