Operation Manual – Routing ProtocolH3C S5600 Series Ethernet Switches Chapter 4 OSPF Configuration4-28To do... Use the command... RemarksConfigure theauthentication mode of theOSPF interfaceospf authentication-mode{ simple password | md5key-id key }OptionalBy default, OSPFpackets are notauthenticated on aninterface.Note:z OSPF supports packet authentication and receives only those packets that aresuccessfully authenticated. If packet authentication fails, no adjacencies will beestablished.z The authentication modes for all routers in an area must be consistent. Theauthentication passwords for all routers on a network segment must also beconsistent.4.7.7 Configuring the MTU Field in DD PacketsBy default, an interface uses value 0 instead of its actual MTU value whentransmitting DD packets. After the following configuration, the actual interface MTU isfilled in the MTU field in DD packets.Follow these steps to configure to fill the MTU field when an interface transmits DDpackets:To do... Use the command... RemarksEnter system view system-view —Enter interfaceviewinterface interface-typeinterface-number —Enable theinterface to fill inthe MTU fieldwhen transmittingDD packetsospf mtu-enableRequiredBy default, the MTU value is 0when an interface transmits DDpackets. That is, the actual MTUvalue of the interface is not filled in.
