Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 4 OSPF Configuration4-17Note:OSPF is a dynamic routing protocol based on link state, with routing informationhidden in LSAs. Therefore, OSPF cannot filter any advertised or received LSA. In fact,the filter-policy import command filters the routes calculated by OSPF; only theroutes passing the filter can be added to the routing table.4.6.4 Configuring the Cost for Sending Packets on an OSPF InterfaceFollow these steps to configure the cost for sending packets on an OSPF interface:To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Configure the costfor sending packetson an OSPFinterfaceospf cost valueRequiredBy default, OSPF calculates thecost for sending packets on aninterface according to the currentbaud rate on the interface. For aVLAN interface on the switch,this value is fixed at 1.4.6.5 Setting OSPF Route PrioritySince multiple dynamic routing protocols may be running on one router, the problemof route sharing and selection between various routing protocols arises. The systemsets a priority for each routing protocol (which you can change manually), and whenmore than one route to the same destination is discovered by different protocols, theroute with the highest priority will take preference over other routes.Follow these steps to set OSPF route priority:To do... Use the command... RemarksEnter system view system-view —Enter OSPF view ospf [ process-id [ router-idrouter-id ] ] —Set OSPF routepriority preference [ ase ] valueRequiredBy default, the OSPF routepriority is 10 and the priorityof OSPF ASE is 150.
