def populate_peer_info(neighbors, fanout_info, port):
    """
    Build the peer_info map which will be used by the storm generation class

    Args:
        neighbors (dict): fanout info for each DUT port
        fanout_info (dict): fanout graph info
        port (string): test port

    Returns:
        peer_info (dict): all PFC params needed for fanout for storm generation
    """
    peer_dev = neighbors[port]['peerdevice']
    peer_port = neighbors[port]['peerport']
    peer_info = {'peerdevice': peer_dev,
                 'hwsku': fanout_info[peer_dev]['device_info']['HwSku'],
                 'pfc_fanout_interface': peer_port
                }
    return peer_info