icegem-cache-utils/src/main/java/com/googlecode/icegem/cacheutils/replication/GuestNode.java
private String createReceivedAtKey(String fromClusterName,
		String toClusterName) {

		return KEY_PREFIX + fromClusterName + "-" + toClusterName
			+ KEY_POSTFIX_DURATION;
	}
private String createReceivedAtKey(String fromClusterName,
		String toClusterName) {

		return KEY_PREFIX + fromClusterName + "-" + toClusterName
			+ KEY_POSTFIX_DURATION;
	}
Creates the receivedAt key

@param fromClusterName
- the name of cluster from which the entry received
@param toClusterName
- the name of cluster on which the entry received
@return - the receivedAt key