
Customizing WAN Interfaces
114078 Rev. A 4-7
Setting the Maximum Transmission Unit (MTU)
By default, the MTU on the ATM FRE-2 interface is 4608 octets. You can set the
largest packet size that the router can transmit on this interface to a value from 1
through 9188 octets.
Enabling or Disabling Data Path Notify
If the physical interface stops operating (for example, the cable becomes
disconnected from the ATM FRE-2 module), the router disables the interface
between the driver and the higher-level software (the data path interface) after a
period of time you specify with the Data Path Notify Timeout parameter.
You can disable and reenable Data Path Notify for this interface.
If you select Disable, the router does not disable the data path interface when the
physical interface stops operating.
If you select Enable, be sure to set an appropriate value for the Data Path Notify
Timeout parameter.
Setting the Data Path Notify Timeout
When the Data Path Notify parameter is enabled, the router waits a default value
of 3 seconds before disabling the interface. You can set the timeout period to a
value from 0 to 3600 seconds on this interface.
Enabling or Disabling the SVC Inactivity Timeout
With the SVC Inactivity Timeout parameter enabled, the router disables any
switched virtual circuit (SVC) on which it receives or transmits no cells, for the
number of seconds you specify using the SVC Inactivity Timeout (Secs)
parameter.
Site Manager: Interface MTU parameter: page A-24
Site Manager: Data Path Enable parameter: page A-24
Site Manager: Data Path Notify Timeout parameter: page A-24
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