What is Administrative Distance when dealing with routing protocols?
It is how the IOS will rank the reliability of a route to a network.
What is the default Administrative Distance of a connected network?
A connected network default AD is 0.
What is the default Administrative Distance of a static route?
A static route default AD is 1.
What is the default Administrative Distance of an EIGRP route?
EIGRP default AD is 90.
What is the default Administrative Distance of an OSPF route?
OSPF default AD is 110.
What is the default Administrative Distance RIPv2?
RIPv2 default AD is 120.
What is route poisoning?
It is when a network goes down and the router changes the cost to the network to infinity causing the neighbor routers to mark it as unreachable.
When will the router remove the hold down timer for a route update?
If the router receives an update that has a lower metric than the original it will be removed, but if it is higher then it will be ignored and wait for the timer to run out.
Which routing protocols use automatic route summarization, RIP,RIP,OSPF,EIGRP?
RIPv2,and EIGRP auto-summarize. RIP is class-full so there is no net to summarize