Command Reference OSPFv2 Commands
2.29 ip ospf hello-interval
Use this command to set the interval for sending Hello packets in interface configuration mode. Use
the no form of this command to restore the default setting.
ip ospf hello-interval seconds
no ip ospf hello-interval
Interval for sending Hello packets in seconds. The range is from1 to
65535.
The defaults are as follows:
10secons for Ethernet
10seconsfor PPP or HDLC encapsulated interfaces
10secons for frame relay PTP interfaces
30secons for non-frame relay PTP sub-interface and X.25 interfaces
Interface configuration mode
The interval of sending the Hello packets is included in the Hello packet. A shorter interval means that
OSPF detects the topological change faster, which will increase network traffic. The Hello packet
sending intervals for all the devices in the same network segment must be the same. To manually
modify the interval to determine neighbor death, ensure that the Hello packet sending interval cannot
be greater than dead-interval of the neighbor.
The following example configures the interval of sending the Hello packets on fastEthernet 0/1 to15.
Ruijie(config)# interface fastEthernet 0/1
Ruijie(config-if-FastEthernet 0/1)# ip address172.16.10.1 255.255.255.0
Ruijie(config-if-FastEthernet 0/1)# ip ospf hello-interval15
Sets the interval for determining the death of
the OSPF neighbor.
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