.sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
.collect(Collectors.toList());
checkTransitionalLink(links.get(0), topoUuid, node1Uuid, node3Uuid, "DSR+XPDR1-NETWORK1",
.sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
.collect(Collectors.toList());
checkTransitionalLink(links.get(0), topoUuid, node1Uuid, node3Uuid, "DSR+XPDR1-NETWORK1",