Question: In an IMS core network implementing MCVideo, when a SIP request with a Resource-Priority header for MCVideo is received by the P-CSCF, what information does the P-CSCF provide to the PCRF to set corresponding PCC rules?
Option 1: Only Reservation-Priority AVP
Option 2: Only MCVideo-Identifier AVP and AF-Application-Identifier AVP
Option 3: Both Reservation-Priority AVP and MCVideo-Identifier AVP
Option 4: Neither Reservation-Priority nor MCVideo-Identifier AVP; only AF-Application-Identifier AVP
Explanation: To adjust the priority of an MCVideo session based on the received SIP request with a Resource-Priority header, the P-CSCF needs to provide specific information to the PCRF. This includes both the Reservation-Priority AVP (to indicate the priority level) and the MCVideo-Identifier AVP (to identify the MCVideo service). The AF-Application-Identifier AVP is not explicitly mentioned as being sent in this context for setting PCC rules.