Cheatsheet: Difference between revisions
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= OSPF =
*
Down
Attempt
Line 388:
Full LSDB of ngbr are fully syncd
*
Type 1 - Router LSAs Sent from router to other routers in the same area, has info reg router's int in the same area, int IPs, adjacent routers
Type 2 - Network LSAs Generated by the DR on a multi access segment, similar to LSA Type 1
Type 3 - Network Summary LSA Generated by ABRs, contain the subnets & costs
Type 4 - ASBR summary LSA Same as summary LSA except the destination advertised by ABR is ASBR, ABR in same area as the ASBR will originate the Type 4 LSA.
Type 5 - AS external LSA Generated by ASBRs, Flooded throughout the AS to advertise a route external to OSPF
Type 7 - NSSA External LSA Generated by the ASBR in an NSSA area, Converted into a type 5 LSA by the ABR when leaving the area
▲*;Packet Types
Type 1 - Hello
Type 2 - Database Description (DBD)
Type 3 - Link-State request (LSR)
Type 4 - LSU (Contain LSAs)
Type 5 - LSAck
▲*;Neighbor Requirements:
Same area
Same authentication config
Line 412 ⟶ 409:
Same hello/dead interval
Matching stub flags
* LSA Details
[[File:OSFF LSA 2.png|center]]
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