3Com Switch 7750 Configuration Guide Guide

OSPF Network Adjustment and Optimization 305
n
■ OSPF supports packet authentication and receives only those packets that are
successfully authenticated. If packet authentication fails, no neighboring
relationship 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 to Fill the
MTU Field When an
Interface Transmits 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 MTU value
of the interface is filled in the Interface MTU field of the DD packets.
Enabling OSPF Logging
Configuring OSPF
Network Management
System (NMS)
Return to system view quit -
Enter interface view
interface interface-type
interface-number
-
Configure the authentication
mode of the OSPF interface
ospf authentication-mode {
simple password | md5
key-id key }
Required
By default, OSPF packets are
not authenticated on an
interface.
Table 229 Configure OSPF authentication
Operation Command Description
Table 230 Configure to fill the MTU field when an interface transmits DD packets
Operation Command Description
Enter system view system-view -
Enter Ethernet interface view
interface interface-type
interface-number
-
Enable the interface to fill in
the MTU field when
transmitting DD packets
ospf mtu-enable
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.
Table 231 Enable OSPF logging
Operation Command Description
Enter system view system-view -
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
-
Enable the logging of
neighbor status changes
log-peer-change
Optional
Log neighbor status changes.
Table 232 Configure OSPF MIB binding
Operation Command Description
Enter system view system-view -