hasPort := err == nil

		// attempt to expand shortname to FQDN
		requestedName := name
		if hasPort {
			requestedName = host
		}
		allNames := []string{requestedName}
		if fqdn := tryFindFQDN(requestedName, node); fqdn != "" {
			allNames = append(allNames, fqdn)
		}

		for _, name := range allNames {
			ln, ok := filter[name]
			if !ok {
				ln = listenerName{RequestedNames: sets.New[string]()}