Type 1 is a router LSA. They are produced by every router and are flooded only within the area in which they originated.
Type 2 is a network LSA. They are produced by the DR and represents a pseudonode (virtual).
It lists all attached routers and is only flooded within originating area.
Type 3 is a Network summary LSA. They are produced by an ABR. They are sent into a single area to advertise destinations outside it.
Type 4 is an ASBR Summary LSA. They are produced by an ABR. They are the same as a type 3 but advertise the destination to an ASBR not a network. This will be a host address as it is a route to a router.
Type 5 is an AS External LSA . Produced by an ASBR and advertise external destinations (outside the OSPF AS) or a default route. They are flooded within the AS.
Type 7 is a NSSA External LSA. Originated by an ASBR within a not so stubby area. It is like a type 5 but instead of it being flooded within the AS it is only flooded within the NSSA where it came from.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.