def METHOD_NAME(interface):
    """
    PFC handler to display asymmetric PFC information.
    """
    header = ('Interface', 'Asymmetric')
    configdb = ConfigDBConnector()
    configdb.connect()
    if interface:
        db_keys = configdb.keys(configdb.CONFIG_DB, 'PORT|{0}'.format(interface))
    else:
        db_keys = configdb.keys(configdb.CONFIG_DB, 'PORT|*')
    table = []
    for i in db_keys or [None]:
        key = None 
        if i:
            key = i.split('|')[-1]
        if key and key.startswith('Ethernet'):
            entry = configdb.get_entry('PORT', key)
            table.append([key, entry.get('pfc_asym', 'N/A')])
    sorted_table = natsorted(table)
    click.echo()
    click.echo(tabulate(sorted_table, headers=header, tablefmt="simple", missingval=""))
    click.echo()