multi-homing association

Hi,

I have question, Is it possible or mandatory for the upper layer to know 
that the SCTP endpoints(source and destination) are multi-homed? and 
also the list of destination ip address available with the SCTP 
multi-homed destination?

Consider if the SCTP layer is multi-homed(source and peer end) and the 
upper layer knows only about a single address, through which the upper 
layer asks the SCTP to initiate a association. Suppose during this 
initiation if the peer end address through which initiation is 
happening, is down. Is there any approach where the upper layer knows 
the list of multihomed destination ip addresses, and it tries to initate 
the through the other destination ip addresses?
If not possible,  is it that the association between these to endpoints 
will never come up untill the known destination ip address comes up?

Please clarify...

Thanks and regards,
devayya