Action on SeqNumberMismatch

[Igor Miroshnik <[e-mail]>]

All,

RFC 2328 says:

"  State(s):  Exchange or greater

     Event:  SeqNumberMismatch

 New state:  ExStart

    Action:  The (possibly partially formed) adjacency is torn
      down, and then an attempt is made at
      reestablishment.  The neighbor state first
      transitions to ExStart.  The Link state
      retransmission list, Database summary list and Link
      state request list are cleared of LSAs.  Then the
      router increments the DD sequence number in the
      neighbor data structure, declares itself master
      (sets the master/slave bit to master), and starts
      sending Database Description Packets, with the
      initialize (I), more (M) and master (MS) bits set.
      This Database Description Packet should be otherwise
      empty (see Section 10.8)."

Questions:

1) Is the Database Description Packet sent empty?
2) If so, what is the meaning of the word "otherwise" in the end of the
quotaton?

Thanks,
Igor