OSPF Configuration Commands 211Parameterseconds Enter the amount of dead time allowed, in seconds, in the range 1 to65535.DescriptionUsing the ospf timer dead command, you can configure the amount of deadtime allowed to OSPF neighbors, in seconds.Using the undo ospf timer dead command, you can restore the default value.By default, the dead time allowed to OSPF neighbors is 40 seconds.If no Hello message is received from a neighbor in the specified time, the neighboris considered unresponsive or down. The timer dead value should be at leastfour times that of the timer hello value. The timer dead value for routers onthe same network segment must be identical.Related commands: ospf timer hello.ExampleTo set the dead time to 80 seconds on interface Vlan-interface 1, enter thefollowing:system-viewSystem View: return to User View with Ctrl+Z.[SW5500]interface Vlan-interface 1[SW5500-Vlan-interface1]ospf timer dead 80ospf timer hello Syntaxospf timer hellosecondsundo ospf timer helloViewVLAN Interface ViewParameterseconds Enter the Hello interval time allowed, in seconds, in the range 1 to 255.DescriptionUsing the ospf timer hello command, you can configure the Hello interval timeallowed for an interface.Using the undo ospf timer hello command, you can restore the interval to thedefault value. By default, the amount of time allowed is 10 seconds for aninterface of p2p or broadcast type, and 30 seconds for an interface of nbma orp2mp type.Related command: ospf timer dead.ExampleTo set a time interval of 20 seconds for transmitting Hello messages on theinterface Vlan-interface 1, enter the following:
