ITU-T G.9973 PDF

Various kinds of Internet protocol (IP) terminal devices, such as PCs, digital TVs, gaming devices, and portable music devices, have recently been, and continue to be, connected to the IP home network. Furthermore, their number is increasing. The kinds of transmission media (PLC, wireless, UTP, etc.) used to connect each IP terminal are also becoming more varied. Under such circumstances, most users are unable to troubleshoot the IP home network by themselves, without the availability of appropriate network services. It is desired to introduce a simple and easy IP home network management that can localize the fault in each device and network and help recover from trouble.

[ITU-T G.9971] describes three kinds of management requirements for the IP home network: configuration management, fault management, and performance management. Based on [ITU-T G.9971], this Recommendation specifies the configuration management protocol that is described in [TTC JJ-300.00]. This protocol is used to manage devices in the IP home network for the purpose of showing the Layer 2 (L2) home network topology to users within the home network only (behind the access gateway (AGW)). On the other hand, [b-BBF TR-069] called CPE WAN Management Protocol is the candidate for the remote home network management protocol from outside of the AGW. Although it may be necessary in the future to study the interaction between this management protocol and the CPE WAN Management Protocol, it is out of the scope in this Recommendation.

This Recommendation does not identify devices on multiple links, but on a single link, as shown in Figure 8-1. Note that "a single link" means the one-data link layer, which constitutes one IP domain between the AGW and the IP terminal. As the deployment of new link-layer technologies such as [b-IEEE 802.15.4] will enable and require the use of multiple links in the home network, ITU-T G.9973 may in the future be extended to cover multiple links composed of IP and non-IP devices.

Home network security is important. A device using ITU-T G.9973 to collect information about the home network will be required to take certain steps to ensure that the information is not accessible through the wide area network (WAN) interface of the AGW.