Huawei Quidway S6500 Series Operation Manual page 192

Operation Manual - Routing Protocol
Quidway S6500 Series Ethernet Switches
4.2.26 Configuring to Fill the MTU Field When an Interface Transmits DD
Packets
OSPF-running routers use the DD (Database Description) packets to describe their
own LSDBs when synchronizing the databases.
You can manually specify an interface to fill in the MTU field in a DD packet when it
transmits the packet. The MTU should be set to the real MTU on the interface.
Perform the following configuration in Interface view:
Table 4-27 Configuring Whether the MTU Field will be Filled in when an Interface
Transmits DD Packets
Enable an interface to fill in the MTU
field when transmitting DD packets
Disable the interface to fill MTU when
transmitting DD packets
By default, the interface does not fill in the MTU field when transmitting DD packets. In
other words, MTU in the DD packets is 0.
4.2.27 Disabling the Interface to Send OSPF Packets
To prevent OSPF routing information from being acquired by the routers on a certain
network, use the silent-interface command to disable the interface to transmit OSPF
packets.
Perform the following configuration in OSPF view.
Table 4-28 Disabling the interface to send OSPF packets
Disable the interface to send OSPF
packets
Enable the interface to send OSPF
packets
By default, all the interfaces are allowed to transmit and receive OSPF packets.
After an OSPF interface is set to be in silent status, the interface can still advertise its
direct route. However, the OSPF hello packets of the interface will be blocked, and no
neighboring relationship can be established on the interface. Thereby, the capability for
Operation
Operation
Huawei Technologies Proprietary
4-24
Chapter 4 OSPF Configuration
Command
ospf mtu-enable
undo ospf mtu-enable
Command
silent-interface
interface-number
undo silent-interface
interface-number
interface-type
interface-type