Quick Reference Guide

436 | OSPF Commands
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ip ospf mtu-ignore
This command disables OSPF maximum transmission unit (MTU) mismatch detection. OSPF
Database Description packets specify the size of the largest IP packet that can be sent without
fragmentation on the interface. When a router receives a Database Description packet, it examines the
MTU advertised by the neighbor. By default, if the MTU is larger than the router can accept, the
Database Description packet is rejected and the OSPF adjacency is not established.
Syntax
[no] ip ospf mtu-ignore
The no version of this command enables the OSPF MTU mismatch detection.
Default
Enabled
Mode
Interface Config; Interface VLAN; Interface Range, which is indicated by the
(conf-if-range-interface)# prompt, such as (conf-if-range-vlan 10-20)#.
Command
History
ip ospf priority
This command sets the OSPF priority for the specified router interface.
Syntax
ip ospf priority 0-255
The priority of the interface is an integer from 0 to 255. A value of 0 indicates that the router is not
eligible to become the designated router on this network.
The no ip ospf priority command sets the OSPF priority to the default for the specified router
interface.
Default
1 (which is the highest router priority)
Mode
Interface Config; Interface VLAN; Interface Range, which is indicated by the
(conf-if-range-interface)# prompt, such as (conf-if-range-vlan 10-20)#.
Command
History
ip ospf retransmit-interval
This command sets the OSPF retransmit interval for the specified interface. The retransmit interval is
specified in seconds.
Version 2.3 Added Interface Range and Interface VLAN modes.
Related
Commands
interface range Defines an interface range and accesses the Interface Range mode
interface vlan Creates a VLAN or selects an existing one and enters the Interface VLAN mode.
Version 2.3 Added Interface Range and Interface VLAN modes.
Related
Commands
interface range Defines an interface range and accesses the Interface Range mode
interface vlan Creates a VLAN or selects an existing one and enters the Interface VLAN mode.