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Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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passive-interface

Suppress both receiving and sending routing updates on an interface.

Syntax passive-interface {default | interface}

To enable both the receiving and sending routing, use the no passive-interface interface command.

To return all OSPF interfaces (current and future) to active, use the no passive-interface default command.

Parameters
default Enter the keyword default to make all OSPF interfaces (current and future) passive.
interface Enter the following keywords and slot/port or number information:
  • For Port Channel groups, enter the keywords port-channel then a number. The range is from 1 to 128.
  • For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then the slot/port information.
  • For a VLAN, enter the keyword vlan then a number from 1 to 4094.
Command Modes ROUTER OSPF
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.19.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information

Although the passive interface does not send or receive routing updates, the network on that interface is still included in OSPF updates sent using other interfaces.

The default keyword sets all interfaces as passive. You can then configure individual interfaces, where adjacencies are desired, using the no passive-interface interface command. The no form of this command is inserted into the configuration for individual interfaces when the no passive-interface interface command is issued while passive-interface default is configured.

This command behavior has changed as follows:

passive-interface interface
  • The previous no passive-interface interface is removed from the running configuration.
  • The ABR status for the router is updated.
  • Save passive-interface interface into the running configuration.
passive-interface default
  • All present and future OSPF interfaces are marked as passive.
  • Any adjacency is explicitly terminated from all OSPF interfaces.
  • All previous passive-interface interface commands are removed from the running configuration.
  • All previous no passive-interface interface commands are removed from the running configuration.
no passive-interface interface
  • Remove the interface from the passive list.
  • The ABR status for the router is updated.
  • If passive-interface default is specified, then save no passive-interface interface into the running configuration.
No passive-interface default
  • Clear everything and revert to the default behavior.
  • All previously marked passive interfaces are removed.
  • May update ABR status.

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