3Com Switch 7750 Configuration Guide Guide

304 CHAPTER 34: OSPF CONFIGURATION
interval, you can lighten the negative affection caused by frequent network
changes.
Disabling OSPF Packet
Transmission on an
Interface
To prevent OSPF routing information from being acquired by the routers on a
certain network, use the silent-interface command to disable OSPF packet
transmission on the corresponding interface.
n
■ On the same interface, you can disable multiple OSPF processes from
transmitting OSPF packets. The silent-interface command, however, only
applies to the OSPF interface where the specified process has been enabled,
without affecting the interface for any other process.
■ After an OSPF interface is set to be in silent status, the interface can still
advertise its direct route. However, the Hello packets from the interface will be
blocked, and no neighboring relationship can be established on the interface.
This enhances OSPF networking adaptability, thus reducing the consumption of
system resources.
Configuring OSPF
Authentication
Tabl e 227 Set the SPF calculation interval
Operation Command Description
Enter system view system-view -
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
-
Set the SPF calculation interval
spf-schedule-interval
interval
Optional
By default, the SPF calculation
interval is five seconds.
Tabl e 228 Disable OSPF packet transmission through an interface
Operation Command Description
Enter system view system-view -
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
-
Disable OSPF packet
transmission on a specified
interface
silent-interface
silent-interface-type
silent-interface-number
Required
By default, all the interfaces
are allowed to transmit OSPF
packets.
Tabl e 229 Configure OSPF authentication
Operation Command Description
Enter system view system-view -
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
-
Enter OSPF area view area area-id -
Configure the authentication
mode of the OSPF area
authentication-mode {
simple | md5 }
Required
By default, no authentication
mode is configured for an
area.
Return to OSPF view quit -