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    Monitoring Global Configuration Status on E Series Routers

    Purpose

    Display the global configuration and status for L2TP on E Series routers, including switched sessions.

    Action

    To display the global configuration and status for L2TP on E Series routers, including switched sessions:

    host1#show l2tp 
    Configuration
      L2TP administrative state is enabled
      Dynamic interface destruct timeout is 600 seconds
      Data packet checksums are disabled
      Receive data sequencing is not ignored
      Tunnel switching is disabled
      Retransmission retries for established tunnels is 5
      Retransmission retries for not-established tunnels is 5
      Tunnel idle timeout is 60 seconds
      Failover within a preference level is disabled
      Weighted load balancing is disabled
      Tunnel authentication challenge is enabled
      Calling number avp is enabled
      L2TP fast path hello processing during ISSU is enabled
      Reject remote transmit address change is enabled for ip address
      Ignore remote transmit address change is disabled 
      Disconnect-cause avp generation is enabled
      Default receive window size is system chooses 
      Rx speed avp when equal is enabled 
      Destination lockout timeout is 300 seconds 
      Destination lockout test is disabled 
      Failover resync is silent-failover 
    Sub-interfaces      total      active     failed     auth-errors
      Destinations      0          0          0          n/a
      Tunnels           0          0          0          0
      Sessions          0          0          0          n/a
      Switched-sessions 0          0          0          n/a 

    Meaning

    Table 1 lists the show l2tp command output fields.

    Table 1: show l2tp Output Fields

    Field Name

    Field Description

    Configuration

    Configuration and status for L2TP on E Series routers, including switched sessions

    L2TP administrative state

    Status of L2TP on the router; enabled or disabled

    Dynamic interface destruct timeout

    Number of seconds that the router maintains dynamic destinations, tunnels, and sessions after they have terminated

    Data packet checksums

    Status of checking data integrity via UDP; enabled or disabled

    Receive data sequencing

    Whether the router processes or ignores sequence numbers in incoming data packets

    Tunnel switching

    Enabled or disabled

    Retransmission retries for established tunnels

    Number of retries configured for established tunnels

    Retransmission retries for not-established tunnels

    Number of retries configured for tunnels not established

    Tunnel idle timeout

    Length of the tunnel idle timeout, in seconds

    Failover within a preference level

    Enabled or disabled

    Weighted load balancing

    Enabled or disabled

    Tunnel authentication challenge

    Enabled or disabled

    Calling number avp

    Whether the E Series LAC sends Calling-Station-Id and Called-Station-Id AVPs in ICRQ packets, enabled or disabled

    L2TP fast path hello processing during ISSU

    Status of handling L2TP hello packets in fast path during unified ISSU; enabled or disabled.

    Reject remote transmit address change

    Enabled or disabled for IP address, UDP port, or both

    Ignore remote transmit address change

    Enabled or disabled for IP address, UDP port, or both

    Disconnect-cause avp generation

    Enabled or disabled

    Default receive window size

    Default L2TP RWS for a tunnel on both the LAC and the LNS; displays either the configured value or the default behavior, indicated by system chooses (that is, the RWS value is set as 64)

    Rx speed avp when equal

    Enabled or disabled

    Destination lockout timeout

    Number of seconds that L2TP destinations remain in the lockout state after they become unavailable

    Destination lockout test

    Status of the L2TP destination lockout test, enabled or disabled

    Failover resync

    Global L2TP peer resynchronization configuration

    Sub-interfaces

    Sub-interface information about L2TP

    total

    Number of destinations, tunnels, and sessions that the router created

    active

    Number of operational destinations, tunnels, and sessions

    failed

    Number of requests that did not reach an operational state

    auth-errors

    Number of requests that failed because the tunnel password was invalid

     

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    Published: 2014-08-20