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 20 lists the show l2tp command output fields.

Table 20: 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

Related Documentation