Reference Guide

650 | Open Shortest Path First (OSPFv2 and OSPFv3)
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To suppress the interface’s participation on an OSPF interface, use the following command. This command
stops the router from sending updates on that interface.
To remove the passive interface from select interfaces, use the
no passive-interface interface
command.
To enable both receiving and sending routing updates, use the
no passive-interface interface
command
When you configure a passive interface, the
show ip ospf process-id interface command adds
the words
passive interface to indicate that hello packets are not transmitted on that interface (shown
in bold).
Command Syntax Command Mode Usage
passive-interface
{default | interface}
CONFIG-ROUTER-OSPF-id Specify whether all or some of the interfaces are
passive.
Entering the physical interface type, slot, and
number enable passive interface on only the
identified interface.
• For a port channel, enter the keywords
port-channel then a number from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the
keyword
TenGigabitEthernet then the slot/port
information (for example,
passive-interface ten
2/3
).
• For a VLAN, enter the keyword
vlan then a
number from 1 to 4094 (
for example,
passive-interface vlan 2222)
.
• For a 40-Gigabit Ethernet interface, enter the
keyword
fortyGigE then the slot/port
information.
The keyword default sets all interfaces on this OSPF process as passive.
To remove the passive interface from select interfaces, use the
no
passive-interface interface
command while passive interface
default is configured.