One Comment on “Which packet type does the router use to request up-to-date link-state information?”

1. Tonetone says:

   September 10, 2014 at 5:53 pm

   When a Services Router receives a CSNP, it checks the database entries again its own local link-state database. If it detects missing information, the router requests specific LSP details using a partial sequence number PDU (PSNP).

   
   
   
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