Why are loopbacks advertised as /32 host routes in OSPF?
Which command in OSPF shows the network LSA information?
What command would you use to create a totally stubby area?
What the Hello packet carries when we enable OSPF ?
What are LSA types?
What are area types? Why there are different area concepts?
What is the main importance of STUB network? Why it is been
developed in OSPF?
What will happen if we redistribute between different
process ?
What are the adjacency type? Is adjacency is formed in
between all the OSPF enabled routers or not ?
What are EXSTART and EXCHANGE state?
If router ID are same between OSPF enabled routers will they
form adjacency or not?
What is LSA 7 and how it can be used?
How we can connect a normal area to a backbone area if they
are not directly connected?
What is LSA in case of OSPF? It resemblance to which
properties of EIGRP?
What is OSPF’s metric? How is it identified in routing
table? Does it support redistribution?
What are the states used in OSPF when forming neighbor ship?
What are the packet types does OSPF use? Explain Hello, Dead
Timers, LSA, LSU, LSR packets.
What will be Hello/Dead timers in network having link
capacity of >T1 and <=T1?
What is OSPF Router ID and how is it elected?
What is the DR/BDR in OSPF? How these are elected and in
what scenario?
What are the multicast IPs used by OSPF? What multicast IP
does DR/BDR router and non-DR use?
How do I change the reference bandwidth in OSPF?
How to generate default route in OSPF?
How external routes are advertised generally (E1 or E2)? How
to change from E2 to E1?
What are the LSA’s available in STUB and totally stub
network?
What is OSPF super Back Bone area?
What is the concept of auto-cost in OSPF?
IS there any DR and BDR concept in /31 network?
What are the different network types in OSPF?
How does OSPF calculate its metric or cost?
What algorithm is used by OSPF if equal cost routes exist?
Are OSPF routing protocol exchanges authenticated?
What is the link-state retransmit interval, and what is the
command to set it?
What is the purpose of the variable IP-OSPF-Transmit-Delay?
Can an OSPF default be originated into the system based on
external information on a router that does not itself have a default?
Can I use the distribute-list in/out command with OSPF to
filter routes?
How can I give preference to OSPF interarea routes over
intra-area routes?
Do I need to manually set up adjacencies for routers on the
Switched Multimegabit Data Service (SMDS) cloud with the OSPF neighbor subcommand?
When routes are redistributed between OSPF processes, are
all shortest path first algorithm (SPF) metrics preserved, or is the default
metric value used?
How does Cisco accommodate OSPF routing on partial-mesh
Frame Relay networks?
Which address-wild-mask pair should I use for assigning an unnumbered
interface to an area?
Can I have one numbered side and leave the other side
unnumbered in OSPF?
Why do I receive the "cannot allocate router id"
error message when I configure Router OSPF One?
Why do I receive the "unknown routing protocol"
error message when I configure Router OSPF One?
Is it true that only the static option of the virtual link
in OSPF allows discontiguous networks, regardless of the mask propagation
properties?
Are the multicast IP addresses mapped to MAC-level multicast
addresses?
Does the Cisco OSPF implementation support IP TOS-based
routing?
Does the offset-list subcommand work for OSPF?
Do I need any special commands to run OSPF over BRI/PRI
links?
Which Cisco IOS Software release began support for
per-interface authentication type in OSPF?
How can you detect the topological changes rapidly?
How does OSPF use two Multilink paths to transfer packets?
Can we have OSPF run over a GRE tunnel?
Is there a way to manipulate and prefer the Type 3 LSAs to
originate from two different areas sent to the non-backbone area?
What is the maximum number of OSPF processes (VRF aware) on
7600/6500 platforms?
Is there a way to compare Cisco NX-OS/IOS OSPF commands?
Is there any feature of OSPF protocol for quick convergence
and a slow reconvergence of routes?
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