05 Flashcards
(22 cards)
OSPF is a _____________ protocol
Link State
_____ contain routing and link state summary information in order to form an adjacency
LSAs
What command shows me a full mapping oof OSPF on a network similar to cdp
show ospf neighbor
What command shpws my Routers ID and Process ID and OSPF?
show ip ospf database
What is this OSPF Router role?
____ uses the multicast ip 224.0.0.5 to send updates to other Routers (updates information on other routers in the network)
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
DR
What is this OSPF Router role?
______ there backup for a DR
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
BDR
What is this OSPF Router role?
Routers with at least one interface connected to area zero are reffrered to as ______________
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
Backbone Routers
What is this OSPF Router role?
__________ whose interfaces all belong to the OSPF area
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
Internal Router
What is this OSPF Router role?
____________ are Routers connected to more than one OSPF area
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
Area Border Router (ABR)
What is this OSPF Router role?
Routers that inject external LSAs into the OSPF database
Backbone Router
DR
BDR
Internal Router
Area Border Router
ASBR
ASBR Autonomous System Boundary Router
What is this LSA type?
Generated by every router in the area
Produced by every router and includes router’s links, interfaces, state of links, and cost.
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
1-Router LSA
What is this LSA type?
Generated by DRs on all non-point-to-point links
used to build the shortest Path tree
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
2-Network LSA
What is this LSA type?
generated by Area Border Rouiters (ABRs)
sends one LSA representing all Type 1 and Type 2 LSAs in an area
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
3-Summary LSA
What is this LSA type?
generated by ABRs connected to an area where external routes are originated
Originated by area border routers (ABRs), It advertises autonomously system boundary routers
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
4-ASBR Summary LSA
What is this LSA type?
Routers with the redistribute command that are not in a NSSA area
Originated by ASBrs. advertises destinations external to the OSPF autonomous system (AS)
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
5-AS External LSA
What is this LSA type?
Routers with the redistribute command that are not in a NSSA area
Originated by ASBRs in a not-so-stubby are (NSSA) It is not flooded throughout the OSPF autonomous
1-Router
2-Network
3-Summary
4-ASBR Summary
5-AS External
7-NSSA External
7-NNSA External LSA
Area 0 is reserved for the ________ _____ which is responsible for distributing routing information between routers
back bone area
What OSPF area type is this?
Able to propagate and receive all LSAs and routes
contains 1,2,3,4, and 5 LSA types
Standard Area
Stub Area
Totally Stub Area
Not-so-stubby area
Transit area
Standard area
What OSPF area type is this?
Prevents AS external (type 5) LSAs form flooding the area
contsind 1,2,3 Lsa’s
Standard Area
Stub Area
Totally Stub Area
Not-so-stubby area
Transit area
Stub Area
What OSPF area type is this?
Prevents type 3 and type 5 Lsa’s from flooding the area
only contain 1,2 Lsa’s
Standard Area
Stub Area
Totally Stub Area
Not-so-stubby area
Transit area
Totally Stubby Area
What OSPF area type is this?
Allows NNSA External (type 7) LSA into area
implement stub/ totally stubby functionallity yet contain an asrb
Standard Area
Stub Area
Totally Stub Area
Not-so-stubby area
Transit area
NSSA
Consists of a virtual link between areas
Standard Area
Stub Area
Totally Stub Area
Not-so-stubby area
Transit area
transmit area
