The RSVP Bandwidth Reservation is done in control plane only ( not actual bandwidth reservation) so any traffic can utilize the underlying interfaces and compete with the TE tunnel traffic normally.
For your example:
- My question is lets bandwidth is available and the requested bandwidth for the tunnel is 10Mbps but the data that initiated the tunnel is much less than 10Mbps, so here again will the remaining bandwidth can't be reused by other data over the link as RSVP reserved it ?
Yes, the other data can normally use the remaining Mbps and competes with the TE tunnel data
I hope that i answered your question