bgp.py 文件源码

def encode_attr_cluster_list(cluster_list):
    """ Encode string cluster_list into a BGP CLUSTER_LIST attribute TLV

        :param cluster_list:      String space delimited list of cluster id's

        :return: BGP attribute TLV ready to be written
    """
    encode_cluster_list = ""

    try:
        for cluster_id in cluster_list.split(' '):
            encode_cluster_list += socket.inet_pton(socket.AF_INET, cluster_id)

        return ATTR_TYPE_CLUSTER_LIST + pack('!B', len(encode_cluster_list)) + encode_cluster_list

    except:
        return ''