Ip Ospf Mtu - Allied Telesis SwitchBlade x908 Series Software Reference Manual

The following example shows configuring OSPF authentication on the interface VLAN2 for the
IP address 1.1.1.1. (If the interface has two IP addresses assigned-- 1.1.1.1 & 2.2.2.2, OSPF
authentication will be enabled only for the IP address 1.1.1.1)

ip ospf mtu

This command sets the MTU size for OSPF. Whenever OSPF constructs packets, it uses
interface MTU size as Maximum IP packet size. This command forces OSPF to use the specified
value, overriding the actual interface MTU size.
This command allows an administrator to configure the MTU size recognized by the OSPF
protocol. It does not configure the MTU settings on the interface. OSPF will not recognize
MTU size configuration changes made to the kernel until the MTU size is updated through the
CLI.
By default, OSPF uses interface MTU derived from the interface.
The no form of this command to returns the MTU size to the default value.
Syntax ip ospf mtu <576-65535>
no ip ospf mtu
Interface mode
Mode
Examples
C613-50007-01 REV B
awplus# configure terminal
awplus(config)# interface VLAN2
awplus(config-if)# ip ospf 1.1.1.1 authentication message-
digest
awplus(config-if)# ip ospf 1.1.1.1 message-digest-key 2 md5
yourpass
awplus# configure terminal
awplus(config)# interface vlan2
awplus(config-if)# ip ospf mtu 1480
Software Reference for SwitchBlade® x908, x900 and x600 Series Switches
TM
AlliedWare Plus Operating System - Software Version 5.3.1
OSPF Commands
36.35