'Parses ip link help output, and gets vf block'

@classmethod
def get_vf_mgmt_section(cls):

    output = cls._get_ip_link_output()
    vf_block_pattern = re.search(cls.VF_BLOCK_REGEX, output, (re.DOTALL | re.MULTILINE))
    if vf_block_pattern:
        return vf_block_pattern.group('vf_block')
