import re


def is_interface_lag(name):
    """Function to evaluate if an interface is likely to be a lag.

    Args:
      name (str): name of the interface to evaluate

    Return:
      True, False or None
    """
    port_channel_intf = r"^port\-channel[0-9]+$"
    po_intf = r"^po[0-9]+$"
    ae_intf = r"^ae[0-9]+$"
    bundle_intf = r"^Bundle\-Ether[0-9]+$"

    if re.match(port_channel_intf, name.lower()):
        return True
    if re.match(ae_intf, name):
        return True
    if re.match(po_intf, name):
        return True
    if re.match(bundle_intf, name):
        return True

    return None