372 | Open Shortest Path First (OSPFv2)w w w . d e l l . c o m | s u p p o r t . d e l l . c o m To view which LSAs are transmitted, use the show ip ospf database process-id database-summary commandsyntax in EXEC Privilege mode (Figure 20-12).Figure 20-12. show ip ospf process-id database database-summary Command ExampleTo view information on areas, use the show ip ospf process-id command in EXEC Privilege mode.Configure LSA Throttling TimersConfigured LSA timers replace the standard transmit and acceptance times for LSAs. Configure LSAthrottling timers in milliseconds, with the interval time increasing exponentially until a maximum time hasbeen reached. If the maximum time is reached, the system continues to transmit at the max-interval. If thesystem is stable for twice the maximum interval time, the system reverts to the start-interval timer and thecycle begins again. To configure the LSA throttling timers, use the commands below.Enable Passive InterfacesA passive interface is one that does not send or receive routing information. Enabling passive interfacesuppresses routing updates on an interface. Although the passive interface will neither send nor receiverouting updates, the network on that interface is still included in OSPF updates sent using other interfaces.Command Syntax Command Mode Usagetimers throttle lsa all{start-interval | hold-interval |max-interval}CONFIG-ROUTER-OSPF-id Specify the interval times for all LSA transmissions• start-interval: Set the minimum interval betweeninitial sending and resending the same LSA.Range: 0-600,000 milliseconds• hold-interval: Set the next interval to send thesame LSA. This is the time between sending thesame LSA after the start-interval has beenattempted.Range: 1-600,000 milliseconds• max-interval: Set the maximum amount of timethe system waits before sending the LSA.Range: 1-600,000 millisecondstimers throttle lsa arrivalarrival-timeCONFIG-ROUTER-OSPF-id Specify the interval for LSA acceptance.• arrival-time: Set the interval between receivingthe same LSA repeatedly, to allow sufficienttime for the system to accept the LSA.Range: 0-600,000 millisecondsFTOS#show ip ospf 34 database database-summaryOSPF Router with ID (10.1.2.100) (Process ID 34)Area ID Router Network S-Net S-ASBR Type-7 Subtotal2.2.2.2 1 0 0 0 0 13.3.3.3 1 0 0 0 0 1FTOS#
