This parses tags from a dn designator. They look like this:
    topology/pod-1/node-101/sys/phys-[eth1/6]/CDeqptMacsectxpkts5min

def parse_capacity_tags(dn):
    """
    This parses tags from a dn designator. They look like this:
    topology/pod-1/node-101/sys/phys-[eth1/6]/CDeqptMacsectxpkts5min
    """
    tags = []
    pod = get_pod_from_dn(dn)
    if pod:
        tags.append("fabric_pod_id:{}".format(pod))
    node = get_node_from_dn(dn)
    if node:
        tags.append("node_id:{}".format(node))

    return tags