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What is the metric that OSPF uses?
OSPF uses the path cost metric to determine the best route to a destination network. The path cost is based on the bandwidth of the link. Lower path costs indicate faster or more desirable paths.
Which two commands can be used to modify the default OSPF metric calculation of a link?
The "ip ospf cost" command can be used to manually set the cost of an OSPF-enabled interface. The "bandwidth" command can indirectly affect OSPF metric calculation by adjusting the bandwidth on an interface, which in turn affects the OSPF metric calculation.
What is an OSPF link?
an interface
Is OSPF link state or distance vector or path vector protocol?
OSPF is a link-state routing protocol.
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.
Which ospf neighbor indicate that two neighbors are synchronized and have formed adjacencies?
Full
What is OSPF adjacencies?
OSPF is a link-state routing protocol that helps Routers exchange IP routes. OSPF Adjacencies is the established "neighborship" between two OSPF routers in order to make the exchange of routes. In this case, Adjacency means the same as "peering", that the OSPF speakers (routers) are able to "talk" to each other.
In OSPF router updates are sent in what form?
link state advertisement
Is OSPF a classful or classless link-state routing protocol?
OSPF is a classless link-state routing protocol. RIP version 1 and IGRP are both classful distance vector routing protocols, EIGRP is a hybrid protocol that supports classless addressing.
Which two link state routing protocol challenges does OSPF resolve through the election of a DR?
the extensive flooding of LSAs throughout the OSPF areathe excessive adjacencies when the number of routers increases
Compare and contrast the advertisements by RIP and OSPF?
RIP is an Interior Gateway Protocol and the most widely accepted routing protocol. It is also known by the name of the Unix daemon program routed. RIP is straightforward: it arranges to have routers to broadcast their entire current routing database periodically OSPF is a link-state algorithm. OSPF specifies a class of messages called link-state advertisements (LSAs) that allow routers to update each other about the LAN and WAN links to which they are connected. When a change is made to the network, LSAs flow between routers. OSPF routers receive link-state updates and store them in a topology database in memory. OSPF networks as an end-station-to-router protocol. OSPF addresses all the deficiencies of RIP, without affecting connectivity to RIP based networks.
