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LSAs » History » Revision 2

Revision 1 (Vince Lehman, 02/17/2015 09:56 AM) → Revision 2/3 (Ashlesh Gawande, 06/21/2017 10:42 AM)

LSAs 
 ==== 

 NLSR no longer uses a combined sequence number as [1523](https://redmine.named-data.net/issues/1523) has been merged. 
 It uses a separate sequence number for each type of LSA. 

 ## Combined Sequence Number 

 The sequence numbers for each LSA type are combined and synced as one 64-bit sequence number. 

 The Name LSA sequence number is represented by a 24-bit value. 

 The Adjacency LSA and Coordinate LSA sequence numbers are represented by 20-bit values. 

 The sequence numbers are combined as follows: 

     Combined sequence number = (Name LSA SeqNo << 40) | (Coordinate LSA SeqNo << 20) | (Adjacency LSA SeqNo)