How does the routing protocol publish timeout resolve?

A link state broadcast is a grouping used by the link state Protocol, which includes information about the cost of neighbors and channels, and each ospflsa has a lifetime indicating whether the LSA is still valid. Once the LSA reaches the maximum lifetime, it is discarded, and this article is going to show you how to solve the timeout if it happens.

First, the network environment

Network, in Mercury A, mercury B and Mercury C, the configuration of the OSPF protocol between Mercury C and mercury a link between the Mercury C interface GE1/0/1 IP address for 1.1.1.73/30, Mercury a interface GE1/0/1 IP address for 1.1.1.74/30, after the configuration is completed, Why is it that the router cannot be generated correctly on the routers?

Second, failure analysis

1, in Mercury A, mercury B, mercury C on the implementation of display OSPF routing command, found that the router does not normally generate routes.

2, on Mercury b perform display OSPF interface gigabitethernet 1/0/1 Discovery interface state is down.

3. Perform the display OSPF LSDB command on Mercury A, discovering that the network LSA age of the segment is 3600 and the LSA is aging.

4, on Mercury B on the implementation of display interface Gigabitethernet 1/0/1, found router B-Port GE1/0/1 IP for 1.1.1.73/30, and Mercury C GE1/0/1 Port IP address configuration consistent.

5, Mercury b port GE1/0/1 IP for 1.1.1.73/30, when the network segment for the OSPF route release, Mercury B Port GE1/0/1 has been shutdown processing.

6, in the configuration of mercury A and mercury C and the OSPF router released, Mercury b received the network segment of the network LSA found the LSA ID and the IP address of its own interface exactly the same, and also to determine its own interface for down state, on Mercury B issued an aging time to the LSA aging. Routes cannot be generated properly on other routers.

Third, the fault handling

1. Execute Interface {gigabitethernet | Gigabitethernet} Interface-numbe, enter the specified Ethernet interface view.

2, the implementation of IP address ip-address ip-mask [Sub], configure the Ethernet interface IP addresses

3, execute the QUIT command, into the system view.

4, the implementation of OSPF [Process-id], into the OSPF process view.

5, execute Area area-id, enter the OSPF district view.

6. Perform network ip-address wildcard-mask, configure the network segments contained in the zone, or perform the Undo command to remove the IP address 1.1.1.73/30 and OSPF configuration of the GE1/0/1 interface on Mercury B.

After the completion of the above operation, OSPF routing can be normal release, troubleshooting, network IP address to reasonable planning, to avoid the network IP address conflicts, more problems in the router, interested users can see the rest of the site.