• Intra-area traffic
• Inter-area traffic
• External traffic
The switches support the following types of LSAs, which are described in RFCs 2328 and 3101:
Table 30: OSPF LSA types
LSA type
LSA name
Use
1
Router link
Describes the state of each interface on a router for a given area. Not
propagated to backbone area.
2
Network link
Describes the OSPF routers in a given network. Not propagated to
backbone area.
3
Summary link
Describes the route to networks in another OSPF area of the same AS.
Propagated through backbone area to other areas.
4
Autonomous System
(AS) summary link
Describes the route to an ASBR in an OSPF normal or backbone area of
the same AS. Propagated through backbone area to other areas.
5
AS external link
Describes the route to a destination in another AS (external route.)
Originated by ASBR in normal or backbone areas of an AS and
propagates through backbone area to other normal areas.
For injection into an NSSA, ABR converts type-5 LSAs to a type-7 LSA
advertising the default route (0.0.0.0/0.)
7
AS external link in an
NSSA
Describes the route to a destination in another AS (external route.)
Originated by ASBR in NSSA.
ABR converts type-7 LSAs to type-5 LSAs for injection into the backbone
area.
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Aruba 3810 / 5400R Multicast and Routing Guide for ArubaOS-
Switch 16.08
