[lisp] draft-ermagan-lisp-nat-traversal question

[Albert López <[e-mail]>]

Dear all,

In section 5.3 of the draft  draft-ermagan-lisp-nat-traversal which 
describe the RTR processing, it says that when the RTR receive and 
ECM-ed Map Notify, once it is validated, it changes the state of the 
associated map-cache entry to verified for the duration of the Map 
Register TTL.  What does it mean by Map Register TTL?  it means the TTL 
of the record of the Map Register or it is the same concept of the Map 
Register TTL of the Map Server which is 3 minutes? If I understand 
correctly, if we don't receive more Encap Map Register / Map Notify to 
renew this verified period, the map-cache entry of the RTR expires, at 
least the locator of the map-cache entry associated with the Encap Map 
register.

    "Once the authenticity of the message is verified,
    RTR can confirm that the Map-Register message for the ETR with the
    matching xTR-ID was accepted by the Map-Server.  At this point the
    RTR can change the state of the associated map-cache entry to
    verified for the duration of the Map-Register TTL"

Thank you in advance.

Albert López