Configuring The Mtu Field In Dd Packets; Enabling Ospf Logging Of Neighbor State Changes - 3Com 5500-EI PWR Install Manual

Return to OSPF view
Return to system view
Enter interface view
Configure the authentication mode
of the OSPF interface
OSPF supports packet authentication and receives only those packets that are successfully
authenticated. If packet authentication fails, no adjacencies will be established.
The authentication modes for all routers in an area must be consistent. The authentication
passwords for all routers on a network segment must also be consistent.

Configuring the MTU Field in DD Packets

By default, an interface uses value 0 instead of its actual MTU value when transmitting DD packets.
After the following configuration, the actual interface MTU is filled in the MTU field in DD packets.
Follow these steps to configure to fill the MTU field when an interface transmits DD packets:
To do...
Enter system view
Enter interface view
Enable the interface to fill in the
MTU field when transmitting
DD packets

Enabling OSPF Logging of Neighbor State Changes

Follow these steps to enable OSPF logging of neighbor state changes:
To do...
Enter system view
To do...
system-view
interface interface-type
interface-number
ospf mtu-enable
system-view
Use the command...
quit
quit
interface interface-type
interface-number
ospf authentication-mode
{ simple password | md5 key-id
key }
Use the command...
Use the command...
4-25
Remarks
—
—
—
Optional
By default, OSPF packets
are not authenticated on an
interface.
Remarks
—
—
Required
By default, the MTU value is 0
when an interface transmits DD
packets. That is, the actual
MTU value of the interface is
not filled in.
Remarks
—