Monitoring Dynamic DVMRP Tunnels

Purpose

Display information about dynamic DVMRP tunnels. You can specify the detail keyword to view detailed information about tunnels. You can specify the state keyword and the state of the tunnel (disabled, down, enabled, lower-down, not-present, up) to view the number of tunnels in a specific state. To view the state of a specific tunnel, specify a tunnel name. To view the number of tunnels associated with that IP address, specify an IP address. You can specify an IP address with the virtual-router keyword and the name of the virtual router to view the number of tunnels associated with an IP address on the virtual router.

Action

To display three dynamic DVMRP tunnels:

host1:vr11#show dvmrp tunnel
DVMRP tunnel mvpn-dynamic-1 is Up
DVMRP tunnel mvpn-dynamic-2 is Up
DVMRP tunnel mvpn-dynamic-3 is Down
3 DVMRP tunnels found
3 tunnels were created dynamic 

To display the detail of a dynamically created DVMRP tunnel for the data MDT application:

host1:vr11#show dvmrp tunnel detail mvpn-dynamic-1
DVMRP tunnel mvpn-dynamic-1 is Up
tunnel is dynamic
Application is MVPN
Tunnel operational configuration
  Tunnel mtu is '5000'
  Tunnel source address is '1.1.1.1'
  Tunnel destination address is '2.2.2.2'
  Tunnel transport virtual router is vr1
  Tunnel mdt is disabled
  Tunnel up/down trap is enabled
  Tunnel-server location is 4/0
  Tunnel administrative state is Up
Statistics    packets              octets               discards   errors
  Data rx     0                    0                    0          0
  Data tx     0                    0                    0          0
1 DVMRP tunnel found 
1 tunnel was created dynamically

To display the detail of a dynamically created DVMRP tunnel for the Mobile IP application:

host1:vr12#show dvmrp tunnel detail mobileIp-dynamic-1
DVMRP tunnel mobileIp-dynamic-1 is Up 
tunnel is dynamic
Application is Mobile-IP
Tunnel operational configuration
  Tunnel mtu is '5000'
  Tunnel source address is '6.6.6.6'
  Tunnel destination address is '3.3.3.3'
  Tunnel transport virtual router is vr1
  Tunnel mdt is disabled
  Tunnel checksum option is disabled
  Tunnel sequence number option is disabled
  Tunnel key is disabled
  Tunnel up/down trap is enabled
  Tunnel-server location is 6/0
  Tunnel administrative state is Up
Statistics    packets              octets               discards   errors
  Data rx     0                    0                    0          0
  Data tx     0                    0                    0          0

To display a summary of information about DVMRP tunnels:

host1#show dvmrp tunnel summary
Administrative status   enabled   disabled
                        1         0
Operational status      up        down     not-present
                        1         0        0 

Meaning

Table 35 lists the show dvmrp tunnel command output fields.

Table 35: show dvmrp tunnel Output Fields

Field Name

Field Description

DVMRP tunnel

Name and state of the dynamic DVMRP tunnel:

  • Up—Tunnel is operational
  • Down—Tunnel is not operational
  • not-present—Tunnel is not operational, because the hardware (such as a line module) supporting the tunnel is inaccessible

Application

Name of the application that created the tunnel

Tunnel mtu

Value of the maximum transmission unit for the tunnel

Tunnel source address

IP address of the source of the tunnel

Tunnel destination address

IP address of the destination of the tunnel

Tunnel transport virtual router

Name of the virtual router associated with the tunnel

Tunnel mdt

Tunnel MDT state

Tunnel checksum option

State of the checksum feature: enabled or disabled

Tunnel sequence number option

State of the sequence number feature; enabled or disabled

Tunnel up/down trap is enabled

Indicates whether or not the E Series router sends traps to SNMP when the operational state of the tunnels changes

Tunnel server location

Location of the tunnel server in slot/port format (ERX7xx models, ERX14xx models, and the ERX310 router) or slot/adapter/port format (E120 and E320 routers).

Tunnel secured by ipsec transport interface

IPsec interface that secures the tunnel

Tunnel administrative state

Configured state of the tunnel: Up or Down

Statistics

Details of packets received or transmitted by the tunnel

packets

Number of packets received or transmitted by the tunnel

octets

Number of octets received or transmitted by the tunnel

discards

Number of packets not accepted by the tunnel

Errors

Number of packets with errors received or transmitted by the tunnel

Data rx

Received data

Data tx

Transmitted data

DVMRP tunnels found

Total number of DVMRP tunnels found

Tunnels were created dynamic

Number of tunnels created dynamically

Administrative status

Administrative status:

  • enabled—Tunnel is available for use
  • disabled—Tunnel is not available for use

Operational status

Operational status:

  • up—Tunnel is operational
  • down—Tunnel is not operational
  • not-present—Tunnel is not operational, because the hardware (such as a line module) supporting the tunnel is inaccessible

Related Documentation