ASBRs generate Type 4 LSAs.
- Optimizing OSPF Behavior
- from Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide: (CCNP ROUTE 300-101)
- Publisher: Cisco Press
- Released: January 2015
ABRs generate Type 4 LSAs. An ASBR advertises and Type 1 LSA with a special external bit set. It is up to the ABR to translate this LSA to a type 4.
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