3com 8807 참조 가이드

seconds: Interval in seconds for an interface to transmit hello packet. It ranges 
from 1 to 255.

Use the ospf timer hello command to configure the interval for transmitting 
Hello packets on an interface.

Use the undo ospf timer hello command to restore the interval to the default 
value.

By default, the interval is 10 seconds for an interface of broadcast type to 
transmit Hello packets.

Related command: ospf timer dead.

# Configure the interval for transmitting Hello packets on the interface 
Vlan-interface 10 to 20 seconds.

[SW8800] interface Vlan-interface 10

 

[3Com-Vlan-interface10] ospf timer hello 20 

ospf timer retransmit interval

Interface view

interval: Interval in seconds for re-transmitting LSA on an interface. It ranges from 
1 to 65,535. The default value is 5 seconds.

Use the ospf timer retransmit command to configure the interval for LSA 
re-transmitting on an interface.

Use the undo ospf timer retransmit command to restore the default interval 
value for LSA re-transmitting on the interface.

If a router running OSPF transmits a "link state advertisement" (LSA) to the peer, it 
needs to wait for the acknowledgement packet from the peer. If no 
acknowledgement is received from the peer within the LSA retransmit, this LSA 
will be re-transmitted. This command can change the interval of re-transmitting 
LSA. However, according to RFC2328, the LSA retransmit between adjacent 
routers should not be set too short. Otherwise, unexpected re-transmission will be 
caused.