3Com 3031 Command Reference Manual page 592

592 C 6: R P
HAPTER OUTING
ospf trans-delay
peer
ROTOCOL
Description
Using the ospf timer retransmit command, you can configure the interval for LSA
re-transmitting on an interface. Using the undo ospf timer retransmit command,
you can 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 retransmission, this
LSA will be re-transmitted. According to RFC2328, the LSA retransmission
between adjacent routers should not be set too short. Otherwise, unexpected
retransmission will be caused.
Example
Specify the retransmission for LSA transmitting between the interface serial1/0/0
and the adjacent routers to 12 seconds.
[3Com] interface serial1/0/0
[3Com-serial1/0/0] ospf timer retransmit 12
Syntax
ospf trans-delay seconds
undo ospf trans-delay
View
Interface view
Parameter
seconds: Transmitting delay of LSA on an interface. It is in seconds and ranges
from 1 to 3600. By default, the value is 1 second.
Description
Using the ospf trans-delay command, you can configure the LSA transmitting
delay on an interface. Using the undo ospf trans-delay command, you can restore
the default value of the LSA transmitting delay on an interface.
LSA will age in the "link state database" (LSDB) of the router as time goes by (add
1 for every second), but it will not age during network transmission. Therefore, it is
necessary to add a period of time set by this command to the aging time of LSA
before transmitting it.
Example
Specify the trans-delay of transmitting LSA on the interface serial1/0/0 as 3
seconds.
[3Com] interface serial1/0/0
[3Com-serial1/0/0] ospf trans-delay 3
Syntax
peer ip-address [ dr-priority dr-priority-number ]
undo peer ip-address