3Com 5500G-EI Command Reference Guide - Page 211

OSPF Configuration Commands 211 Parameter seconds Enter the amount of dead time allowed, in seconds, in the range 1 to 65535. Description Using the ospf timer dead command, you can configure the amount of dead time 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 neighbor is considered unresponsive or down. The timer dead value should be at least four times that of the timer hello value. The timer dead value for routers on the same network segment must be identical. Related commands: ospf timer hello. Example To set the dead time to 80 seconds on interface Vlan-interface 1, enter the following: system-view System View: return to User View with Ctrl+Z. [SW5500]interface Vlan-interface 1 [SW5500-Vlan-interface1]ospf timer dead 80 ospf timer hello Syntax ospf timer hello seconds undo ospf timer hello View VLAN Interface View Parameter seconds Enter the Hello interval time allowed, in seconds, in the range 1 to 255. Description Using the ospf timer hello command, you can configure the Hello interval time allowed for an interface. Using the undo ospf timer hello command, you can restore the interval to the default value. By default, the amount of time allowed is 10 seconds for an interface of p2p or broadcast type, and 30 seconds for an interface of nbma or p2mp type. Related command: ospf timer dead. Example To set a time interval of 20 seconds for transmitting Hello messages on the interface Vlan-interface 1, enter the following: