Service Manual
passive-interface
Disable (suppress) sending routing updates on an interface.
Syntax
passive—interface interface
To enable sending routing updates on an interface, use the no passive-interface interface 
command.
Parameters
interface
Enter the following keywords and slot/port or number information:
• For a 10-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet then the slot/port/subport information.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the 
slot/port information.
•
For a port channel interface, enter the keywords port-channel then a 
number. The range is from 1 to 128.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
Defaults Enabled, that is sending of routing updates are enabled by default.
Command Modes
ROUTER OSPF for OSPFv2
ROUTER OSPFv3 for OSPFv3
Command History
Version Description
9.2(1.0) Introduced on the Z9500.
9.1.(0.0) Introduced support for OSPFv3 on the S4810 and Z9000.
8.3.19.0 Introduced on the S4820T.
7.8.1.0 Added support for the C-Series.
7.4.1.0 Introduced on the E-Series.
Usage Information
By default, no interfaces are passive. Routing updates are sent to all interfaces on which the routing protocol 
is enabled.
If you disable the sending of routing updates on an interface, the particular address prex continues to be 
advertised to other interfaces, and updates from other routers on that interface continue to be received and 
processed.
OSPFv3 for IPv6 routing information is not sent or received through the specied router interface. The 
specied interface address appears as a stub network in the OSPFv3 for IPv6 domain.
On conguring suppression using the passive-interface command, the state of the OSPF neighbor does not 
change to INIT; instead, the state of the OSPF neighbor changes to DOWN after the dead-timer expires.
998
Open Shortest Path First (OSPFv2 and OSPFv3)










