Flashcards in OSPF handout quiz Deck (22):
what is Adjacency Database?
LSDB... Link State Database?
what command is used to see the neighbor table (adjacency database?)
show ip ospf neighbor. table shows a routers connections have been made between this router and neighbor routers.
what command is used to see the LSDB table?
show ip ospf database
-shows the link state database table. represents the network topology.
what command is used to see the forwarding database ?
show ip route
-unique on all routers, used to show where to send packets to other routers.
how are neighbor ejacancies made?
hello packets are sent out all interfaces that are ospf enabled. used to establish/ attempt to establish adjacencies with neighbors.
what are LSA?
link state advertisements: after neighbor adjacency is established- LSA send out cost and state of each connected link. used to tell all other routers.
what is LSDB?
link state database: based on the link state advertisements received this is used to build the topology of the network.
what are the 5 types of OSPF packets?
hello packet, database description packet, link site request packet, link state update packet and link state acknowledgement packet
discovers neighbors and builds adjacency with them.
command 'database description' does what?
check for database synchronization between routers
requests specific link state records from router to router
link state update?
sends requested link state records
link state acknowledgement
acknowledges other packet types.
what addresses are used to send multiaccess hello packets to ospf routers?
ipv4 = 224.0..0.5
ipv6 network address is referred to as the?
ipv6 subnet mask is referred to as the?
serial links, fao or ga0/ links are they broadcast links?
serial links are not broadcast links but the others are
what command is used to reset the device id when u change it or set it for the 1st time?
clear ip ospf process