OSPF Flashcards
Manually configure the OSPF router ID:
R1(config-router)# […]
router-id a.b.c.d
Does the OSPF process ID have to match for two routers to become OSPF neighbors?
No
Does single-area OSPF have to use area 0?
No
An […] is an OSPF router that connects the OSPF network to an external network.
autonomous system boundary router (ASBR)
OSPF: What does ASBR stand for?
Autonomous System Boundary Router
Reset the OSPF process on the local router:
R1# […]
clear ip ospf process
OSPF Router ID selection priority:
1. Manual configuration
2. Highest IP address on a loopback interface
3. […]
Highest IP address on a physical interface
OSPF Router ID selection priority:
1. Manual configuration
2. […]
3. Highest IP address on a physical interface
Highest IP address on a loopback interface
OSPF Router ID selection priority:
1. […]
2. Highest IP address on a loopback interface
3. Highest IP address on a physical interface
Manual configuration
Configure the maximum number of paths an OSPF router will use to perform ECMP load-balancing:
R1(config-router)# […]
maximum-paths number
Modify the OSPF AD on the local router:
R1(config-router)# […]
distance value
Configure an OSPF router to advertise its default route into the OSPF domain:
R1(config-router)# […]
default-information originate
Prevent an OSPF router from sending OSPF messages out of an OSPF-enabled interface:
R1(config-router)# […]
passive-interface interface-id
Enable OSPF on interfaces in the specified range:
R1(config-router)# […]
network ip-address wildcard-mask area area
Enter OSPF configuration mode:
R1(config)# […]
router ospf process-id
OSPF: An […] route is a route to a destination in a different OSPF area.
interarea
OSPF: An […] route is a route to a destination inside the same OSPF area.
intra-area
OSPF: Routers connected to the backbone area (area 0) are called […] routers.
backbone
OSPF: It is recommend that you connect an ABR to a maximum of […] areas.
2
OSPF: What does ABR stand for?
Area Border Router
OSPF: Routers with interfaces in multiple areas are called […].
area border routers (ABRs)
OSPF: Routers with all interfaces in the same area are called […] routers.
internal
OSPF: The backbone area (area […]) is an area that all other areas must connect to.
0
OSPF: The […] area (area 0) is an area that all other areas must connect to.
backbone