JUNOSe 9.1.x Broadband Access Configuration Guide > Monitoring L2TP and L2TP Dial-Out > Monitoring Detailed Configuration Information about Specified Tunnels

Monitoring Detailed Configuration Information about Specified Tunnels

Purpose

Display detailed configuration information about specified tunnels.

Action

To display detailed configuration information about specified tunnel by ip address:

host1#show l2tp tunnel virtual router default ip 172.31.1.98

L2TP tunnel 1/xyz is Up with 13 active sessions 

L2TP tunnel 1/aol.com is Up with 13 active sessions 

L2TP tunnel 1/isp.com is Up with 13 active sessions 

L2TP tunnel 1/msn.com is Up with 13 active sessions 

L2TP tunnel 1/mv.com is Up with 12 active sessions 

5 L2TP tunnels found 

To display detailed configuration information about specified tunnel:

host1#show l2tp tunnel detail 1/xyz 

L2TP tunnel 1/xyz is Up with 13 active sessions 

Configuration 

  Administrative state is enabled 

  SNMP traps are enabled 

Tunnel address 

  Transport ipUdp 

  Virtual router default 

  Local address 192.168.1.230, peer address 172.31.1.98

  Local UDP port 1701, peer UDP port: 1701

Tunnel status 

  Effective administrative state is enabled 

  State is established 

  Local tunnel id is 14529, peer tunnel id is 34 

Sub-interfaces    total   active   failed 

  Sessions        13      13       0 

Statistics    packets      octets       discards   errors 

  Control rx  14           683          0          0 

  Control tx  41           4666         0          0 

  Data rx     67900944     67900944     0          0 

  Data tx     67900944     67900944     0          0 

Control channel statistics 

  Receive window size = 4 

  Receive ZLB = 17 

  Receive out-of-sequence = 0 

  Receive out-of-window = 0 

  Transmit window size = 4 

  Transmit ZLB = 12 

  Transmit queue depth = 0 

  Retransmissions = 8 

Tunnel operational configuration 

  Peer host name is 'Juniper-POS' 

  Peer vendor name is 'XYZ, Inc.' 

  Peer protocol version is 1.1 

  Peer firmware revision is 0x1120 

  Peer bearer capabilities are digital and analog 

  Peer framing capabilities are sync and async 

Meaning

Table 89

Table 89: show l2tp tunnel Output Fields 

Field Name	Field Description
Configuration	Configured status of the tunnel enabled
Administrative state	Administrative status of the enabled tunnel: enabled—No restrictions on creation and operation of sessions for this tunnel disabled—Router disabled existing sessions and will not create new sessions on this tunnel drain—Router will not create new sessions on this tunnel
SNMP traps	Whether or not the router sends traps to SNMP for operational state changes
Tunnel address	Tunnel address information.
Transport	Method used to transfer traffic
Virtual router	Name of the virtual router on which the tunnel is configured
Local and peer addresses	IP addresses of the local and remote ends of the tunnel. If the router is set up to ignore address and port changes in SCCRP packets, both the transmit and receive addresses are listed for the peer.
Local and peer UDP ports	UDP ports for the local and remote ends of the tunnel. If the router is set up to accept address and port changes in SCCRP packets, both the transmit and receive UDP ports are listed for the peer.
Tunnel status	Tunnel status information.
Effective administrative state	Most restrictive of the following administrative states: E-series router, destination, and tunnel. This setting, rather than the administrative state of the tunnel, determines whether the router can create new sessions on a tunnel or whether the sessions on a tunnel are disabled or not.
State	Status of the enabled tunnel: idle connecting established disconnecting
Local and peer tunnel id	Names the router used to identify the tunnel locally and remotely
Sub-interfaces:	Sub-interface information for the enabled tunnel: total—Number of sessions that the router has created on this tunnel active—Number of operational sessions on the tunnel failed—Number of requests that did not reach an operational state
Statistics	Information about the traffic sent and received
Control channel statistics	Tunnel control channel information
Receive window size	Number of packets that the peer can transmit without receiving an acknowledgment from the router.
Receive ZLB	Number of acknowledgments that the router has received from the peer.
Receive out-of-sequence	Number of received control packets that were out of order.
Receive out-of-window	Number of packets that arrived at the router outside the receiving window.
Transmit window size	Number of packets that the router can transmit before receiving an acknowledgment from the peer.
Transmit ZLB	Number of acknowledgments that the router has sent to the peer.
Transmit queue depth	Number of packets that the router is waiting to send to the peer, plus the number of packets for which the peer has not yet acknowledged receipt.
Tunnel operation configuration	Information received from the peer when the tunnel was created

lists the show l2tp tunnel command output fields.

Related Topics

• show l2tp tunnel command