DGS-6604
ip ospf mtu-ignore
CLI Reference Guide
296
ip ospf mtu-ignore
To disable OSPF MTU mismatch detection on receiving DBD packets, use the ip
ospf mtu-ignore command in interface configuration mode. To reset to default,
use the no form of this command.
ip ospf mtu-ignore
no ip ospf mtu-ignore
Syntax
Description
None
Default
OSPF MTU mismatch detection is enabled.
Command Mode
Interface configuration
Usage Guideline
OSPF checks whether neighbors are using the same MTU on a common
interface. This check is performed when neighbors exchange Database
Descriptor (DBD) packets. If the receiving MTU in the DBD packet is higher than
the IP MTU configured on the incoming interface, OSPF adjacency will not be
established.
Example
The following example disables MTU mismatch detection on receiving DBD
packets.
Switch# configure terminal
Switch(config)# interface vlan1
Switch(config-if)# ip ospf mtu-ignore