What is LSA? How many types of LSA used by OSPF version 2??
- 2 Answers
- 17382 Views
- Hathway, IBM, I also Faced
- E-Mail Answers
Answer Posted / jm
LSA = link state
Following are the types of LSAs you would usually find in an
OSPF network:
Type 1: router LSA -- A router sends this to describe
neighbors and its own interfaces.
Type 2: network LSA -- For broadcast networks only; this LSA
is flooded by the DR and lists OSPF-speaking routers on the
network.
Type 3: network summary LSA -- Sent by an ASBR to advertise
networks reachable through it. A stub area router will also
use this for the default route.
Type 4: ASBR-summary LSA -- Sent by ASBR, but only
internally. This describes to the others how to get to the
ASBR itself, and uses only internal metrics.
Type 5: AS-external LSA -- Used to describe external routes
to internal areas. Can be used to advertise “this is the way
to the Internet” (or some subset of).
Type 6: Group summary -- Used in multicast (MOSPF). Ignore
this.
Type 7: NSSA area import.
Type 8: External Attributes LSA –- This is very rarely
deployed and is used when BGP information is carried across
OSPF AS.
Type 9, 10, 11 are Opaque LSAs -- They are designated for
future specifically for application specific purpos
| Is This Answer Correct ? | 13 Yes | 1 No |
Post New Answer View All Answers
What do you mean by Port Mirroring?
Which ipsec rule is used for the olympia branch and what does it define?
What does protocol mean?
What is difference between tcp/ip and osi model?
What is protocol data unit in ccna?
Explain the difference between tftp and ftp application layer protocols?
what is Bandwidth capping
Which protocols are link states?
What are the ranges of private ips?
What are the different types of password used in securing a cisco router?
On which interface we always apply access-list?
what are the different asymmetric algorithms?
How does Hold-downs work?
Mention what is the difference between tcp and udp?
What is the difference between simple authentication and md5?
