Switch 7700 Command reference Guide, v2.0

152 CHAPTER 5: USING ROUTING PROTOCOL COMMANDS
View
VLAN interface view
Parameter
None.
Description
Using the ospf mtu-enable command, you can enable the interface to write the
MTU value when sending DD packets.
Using the undo ospf mtu-enable command, you can restore the default. By
default, the MTU value is 0 when sending DD packets, that is the MTU value of the
interface is not written.
DD packets (Database Description Packet) are used to describe its own LSDB when
the router running OSPF protocol is synchronizing the database.
Example
To set interface Vlan-interface 3 to write the MTU value when sending DD packets,
enter the following:
[SW7700]interface Vlan-interface 3
[SW7700-Vlan-interface 3]ospf mtu-enable
ospf network-type Syntax
ospf network-type { broadcast | nbma | p2mp | p2p }
undo ospf network-type
View
VLAN interface view
Parameter
broadcast: Change the interface network type to broadcast.
nbma: Change the interface network type to NBMA.
p2mp: Change the interface network type to p2mp.
p2p: Change the interface network type to point-to-point.
Description
■ Use the ospf network-type command to configure the network type of OSPF
interface.
■ Use the undo ospf network-type command to restore the default network
type of the OSPF interface.
OSPF divides networks into four types by link layer protocol:
■ Broadcast: If Ethernet or FDDI is adopted, OSPF defaults the network type to
broadcast.