Hi all,

The Unsolicited Synchronization message (as defined in section 5.1 in 
draft-ietf-anima-grasp-distribution) is greatly leveraged in this document to 
allow the access authentication point to pass IP to Group mapping info to 
policy enforcement point. 

That would make the information retrieval more efficient compared to request 
and reply (sync) mode.

I guess a missing part is to a flag to be added to objective-flag, i.e.

      objective-flag = &(
        F_DISC: 0    ; valid for discovery
        F_NEG: 1     ; valid for negotiation
        F_SYNCH: 2   ; valid for synchronization
        F_NEG_DRY: 3 ; negotiation is a dry run
        F_UNSLC_SYNCH: 4 ; this is a missing line to indicate valid for 
unsolicited synchronization
      )

Looks like the future grasp objectives would require to consider if they are 
valid for unsolicited synchronization or not. 


Rgds,
Yizhou

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