Users Guide

ip ospf mtu-ignore
Disables MTU size detection on received Database Descriptor (DBD) packets when forming OSPFv3 adjacency.
Syntax
ip ospf mtu-ignore
Parameters None
Default Not configured
Command Mode INTERFACE
Usage
Information
If the MTU size of the peer interface is greater than the local interface, switches that run OSPF do not
form adjacencies with neighbors. Use this command to override this behavior and form adjacency.
If you try to disable a neighborship using the no ip ospf mtu-ignore command after a neighborship
is formed using the ip ospf mtu-ignore command, the neighborship still continues. To remove a
neighborship after it is formed using the ip ospf mtu-ignore command, use the clear ipv6
ospf process command.
Example
OS10(conf-if-vl-10)# ip ospf mtu-ignore
Supported
Releases
10.2.0E or later
ip ospf network
Sets the network type for the interface.
Syntax
ip ospf network {point-to-point | broadcast}
Parameters
● point-to-point — Sets the interface as part of a point-to-point network.
● broadcast — Sets the interface as part of a broadcast network.
Default Broadcast
Command Mode INTERFACE
Usage
Information
The no version of this command resets the value to the default.
Example
OS10(conf-if-eth1/1/1)# ip ospf network broadcast
Supported
Releases
10.2.0E or later
ip ospf passive
Configures an interface as a passive interface and suppresses both receiving and sending routing updates to the passive
interface.
Syntax
ip ospf passive
Parameters None
Default Not configured
Command Mode INTERFACE
Usage
Information
You must configure the interface before setting the interface to Passive mode. The no version of the this
command disables the passive interface configuration.
NOTE: As loopback interfaces are implicitly passive, the configuration to suppress sending and
receiving of OSPF routing updates does not take effect on the loopback interfaces. However,
network information corresponding to these loopback interfaces is still announced in OSPF LSAs
that are sent through other interfaces configured for OSPF.
Layer 3 953