if (link.isPresent()) {
LinkBuilder linkBuilder = new LinkBuilder(link.get());
Link1Builder link1Builder = new Link1Builder(linkBuilder.augmentation(Link1.class));
-// link1Builder.setAdministrativeState(State.OutOfService);
linkBuilder.removeAugmentation(Link1.class);
linkBuilder.addAugmentation(Link1.class,link1Builder.build());
networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, linkIID.build(),