Configure EIGRP on these routers with a lower administrative distance
All routers should be configured for backbone Area 1
R1 and R3 have been configured in different areas
The hello and dead interval timers are not configured the same values on R1 and R3
Bandwidth, Delay and MTU
Bandwidth and MTU
Bandwidth, MTU, Reliability, Delay and Load
The OSPF area is not configured properly.
The priority on R1 should be set higher.
The cost on R1 should be set higher.
The hello and dead timers are not configured properly.
A backup designated router needs to be added to the network.
The OSPF process ID numbers must match.
SAP messages sent by other routers
LSAs from other routers
Beacons received on point-to-point links
Routing tables received from other link-state routers
TTL packets from designated routers
Show ip ospf link-state
Show ip ospf lsa database
Show ip ospf neighbors
Show ip ospf database
The loopback addresses are on different subnets.
The values of the dead timers on the routers are different.
Route summarization is enabled on both routers.
The process identifier on router A is different than the process identifier on router
It is used for type 1 router LSA
Highest IP address of the loopback is used
Router-id needs to be matched on ospf neighbors
Router-id is 16 bit
It identifies the source of Type 1 LSA
It should be the same on all routers in an OSPF routing instance
By default, the lowest IP address on the router becomes the OSPF router ID
The router automatically chooses the IP address of a loopback as the OSPF Router ID
It is created using the MAC Address of the loopback interface
It is less CPU intensive for routers in the single area.
It reduces the types of LSAs that are generated.
It removes the need for virtual links.
It increases LSA response times.
It reduces the number of required OSPF neighbor adjacencies.