[SCTP] clarification about HB.Max.Burst parameter

Ash Kat <[email protected]>
Newsgroups gmane.ietf.sigtran
Message-ID <[email protected]>
Hello All,
 
SCTP RFC 4690 has mentioned a parameter HB.Max.Burst.
As per RFC 4960 section 4.5 :
   The number of HEARTBEATS sent at each RTO SHOULD be limited by the
   HB.Max.Burst parameter.
 
During the Path verification when an RTO expires, SCTP will re-send the Heartbeat to that address.
Please clarify me, how HB.Max.Burst parameter will control the number of Heartbeat sent to that address.
Shouldn't the number of Heartbeat send to a particular address at any time will always be 1? 
If Yes, then why HB.Max.Burst is required?
If No, then please make me understand that how this parameter is used.
 
Thanks & Regards,
Ashwani Kathuria


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