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What is true about the router ID in a single area OSPF network?
The router ID is used to uniquely identify each router in the OSPF routing domain.If no loopback interfaces are configured, the router chooses the highest active IP address of any of its physical interfaces.
Does a Local Area network uses a router?
The highest MAC address among the active interfaces of the network will be used. There will be no router ID until a loopback interface is configured. The highest IP address among the active FastEthernet interfaces that are running OSPF will be used. The highest IP address among the active interfaces will be used.
What are two advantages of using loopback interface on a router with oSPF enabled?
loop back never goes down, helps maintaining adjacency of routers if used with routing protocols
At what layer in the osi model would you find protocols such as rip and ospf?
OSPF and RIP are used in the network layer of the ISO model.
What does routing protocol ospf?
OSPF, or Open Shortest Path First Protocol is an industry standard link state routing protocol used to determine best paths across an IP v4 computer network. OSPF v3 is currently completing development and will provide best path information through IPV6 networks. Link State routing protocols rely on the flooding of Link State Advertisments between neighboring routers in a network to build a database of the interfaces and the neighbor routers connected to those interfaces. This information is then processed using the SPF or Dyksrta algorythm in order to build a "map" of the network. Costs, based on the bandwidth of the individual interfaces, can be calculated to determine the best (lowest cost) path from the router to any network in the domain. OSPF is officially described in RFC 2328 and is an open standard. It is probably the most popular interior gateway protocol in use today.
What is the advantage of adding networks with a wildcard mask instead of using classful network addresses?
In OSPF, interfaces can be assigned to different areas. Many times, a router will be routing inside of a major network, but different interfaces will belong to different areas. You need the level of control given by wildcard masks to assign different interfaces to their appropriate areas, and not restrict an entire major network to be in one area.
What is ospf throttle?
OSPF LSA throttling helps the dampening of LSA updates in OSPF during times of network instability.
What type of protocol is OSPF?
OSPF is short form of open shortest path first. OSPF is based on linked state routing.
What type of routing protocol is OSPF?
OSPF is short form of open shortest path first. OSPF is based on linked state routing.
Which is classified as a link-state routing protocol?
There are actually two OSPF and IS-IS
What does the Cisco IOS use to calculate the OSPF cost to a destination network?
OSPF stands for open shortest path first. OSPF is an exterior routing protocol. OSPF uses Path vector routing algorithm.
Why we r using rip instead of ospf?
Could be because your routers do not support OSPF.
