If you have the switches in bays 1 and 2, this should allow the servers embedded NICs to access the network. I haven't worked with the Cisco blade switches in years. I don't recall if there is any configuration required on the switch other than conencting a cable to the rest of the network. If the c7000 and components had been previously configured there may already be switch settings that need to be cleared or modified.
iLO network access is provided via the OA network port. There are settings within the OA on how the iLOs will get an IP address, either DHCP, or EBIPA (Enclosure Based IP Addressing).
I'd suggesting looking here for documents on setting up the enclosure and blade servers