3 ANNEX A: Use case for OPNFV Brahmaputra
4 =======================================
6 A basic resource reservation use case to be realized for OPNFV B-release may
9 * Step 0: Shim-layer is monitoring/querying available capacity at NFVI
11 * Step 0a: Cloud operator creates a new OpenStack tenant user and updates
12 quota values for this user
14 * Step 0b: The tenant user is creating and instantiating a simple VNF
15 (e.g. 1 network, 2 VMs)
17 * Step 0c: OpenStack is notifying shim-layer about capacity change for
20 * Step 0d: Cloud operator can visualize the changes using the GUI
22 * Step 1: Consumer(NFVO) is sending a reservation request for future use to
25 * Step 2: Shim-layer is checking for available capacity at the given time
28 * Step 3: Shim-layer is responding with reservation identifier
30 * Step 4 (optional): Consumer(NFVO) is sending an update reservation request
31 to shim-layer (startTime set to now) -> continue with Steps 2 and 3.
33 * Step 5: Consumer(VNFM) is requesting the allocation of virtualised resources
34 using the reservation identifier in Step 3