def init_vpc_entries(nexus_ip, vpc_list):
    """Initialize switch/vpc entries in vpc alloc data base.

    param: nexus_ip  ip addr of the nexus switch for this interface
    param: vpc_list  list of vpc integers to create
    """

    LOG.debug("init_vpc_entries() called")

    if not vpc_list:
        return
    session = bc.get_writer_session()

    for vpc in vpc_list:
        vpc_alloc = nexus_models_v2.NexusVPCAlloc(
            switch_ip=nexus_ip,
            vpc_id=vpc,
            learned=False,
            active=False)
        session.add(vpc_alloc)
    session.flush()