TWI396402B - A system that manages the client equipment of a high-speed digital subscriber network access network - Google Patents

Description

System for managing ultra-high speed digital subscriber loops to access network user equipment

The present invention relates to a system for managing a client device of an ultra-high-speed digital subscriber loop access network, in particular, a simple network management protocol (SNMP), a home network gateway (Home Gateway) , HGW) The system of the Customer Premise Network (CPE) after the routing mode (Routed) and the Network Address Translation (NAT) function are enabled.

In response to the booming of xDSL broadband access networks, telecom operators have adopted broadband VDSL2 networks instead of ADSL networks to provide multiple Internet services such as data access, voice and video. VDSL2 The road equipment includes equipment such as a DSL Access Multiplexer (DSLAM) and a user-side HGW. The DSLAM is responsible for performing the multi-service traffic offloading mechanism, according to the Ethernet type of the service ( Ethernet Type), for example: Point to Point over Ethernet (PPPoE) message, or Internet Protocol over Ethernet (IPoE) message, Source Network Protocol Address (Source IP) , Destination Network Protocol (Destination IP), Media Access Control Source (Source MAC), Media Access Control Destination (Destination MAC) or protocol type, for example: User Datagram Protocol (UDP) Or information such as the Transmission Control Protocol (TCP) for traffic offloading, and the traffic is mapped to different virtual local area networks (Virtual Local Area Network) , VLAN) and 802.1p/Type of Service (IP ToS) privilege level, while HGW only starts the bridge function, the service CPE connects the HGW through the Ethernet interface; as for the CPE network Address addressing mode, Internet service generally uses PPPoE to obtain dynamic IP, while voice and video services use fixed IP. For device management, SNMP server manages HGW and CPE devices through SNMP. HGW is a Bridge function. Therefore, the SNMP server can directly manage the SNMP client (client) device such as CPE through the IP address. The SNMP server uses UDP port=161 to directly execute SNMP commands such as “Get” or “Set” to the client. The client uses UDP port=162 to perform a "trap" action to report the event to the SNMP server.

In the future, telecom operators will consider the factors of strengthening network service separation and saving public IP address (Public IP address) resources, and gradually plan to separate multiple services into Internet service providers (ISPs). Integrating network services such as voice and video services, ISP Internet service uses PPPoE or Dynamic Host Configuration Protocol (DHCP) to obtain dynamic public IP addresses from ISP, and integrates networks. Services All services share an external IP address. The traffic offloading work will also be performed by the HGW. The HGW device needs to set the Bridged and Routed modes to meet the service provisioning requirements. The ISP Internet service is connected to the ISP via the Bridged route, and the voice and video integration service is connected to the service via the Routed route. Server (Server) side. The Routed mode needs to enable functions such as DHCP client and NAT. After the DHCP client first obtains a shared public IP address from the network, the service CPE IP address and the TCP/UDP port are converted to the public IP address and different TCP through the NAT function. The /UDP port is connected to the service server. However, this kind of architecture will cause the SNMP server to be unable to manage the CPE through SNMP. Because the CPE IP address and the SNMP UDP port are converted to another shared public IP address and different SNMP UDP ports through the HGW NAT function, the SNMP server is caused. It is not possible to directly pass the CPE IP address and SNMP UDP port=161 and 162 CPE problems. Therefore, in the VDSL2 access network to provide multiple network services, in the HGW set the Routed mode and start NAT and other functional architectures, it is an important issue to solve the problem that the SNMPserver cannot directly pass the CPE IP address and the SNMP UDP port to manage the CPE problem.

It can be seen that there are still many shortcomings in the above-mentioned conventional systems, which is not a good designer, but needs to be improved.

In view of the shortcomings derived from the above-mentioned conventional systems and methods, the inventors of the present invention have improved and innovated, and after years of painstaking research, finally succeeded in research and development of a user who manages the ultra-high-speed digital user loop access network. End device system.

The main purpose of the present invention is to provide a system for managing a client device of an ultra-high-speed digital subscriber loop access network, in response to a telecom operator using a VDSL2 access network to provide multiple network services such as data access, voice, and video. The client HGW device sets the Routed mode and starts the NAT and other functional network architectures, which causes the SNMP server to directly manage the CPE problem of the HGW backend, and proposes a solution to achieve the purpose of the SNMP server.

A secondary object of the present invention is to provide a system for managing a client device of an ultra-high-speed digital subscriber loop access network, and to activate a DHCP server function for the HGW, and the CPE obtains an IP address from the HGW using a DHCP method, and how to use the CPE. The DHCP method obtains a fixed IP address problem and proposes a solution. The SNMP server can be based on the CPE fixed IP address to the CPE.

A system for managing a client device of an ultra-high-speed digital subscriber loop access network is achieved by the HGW performing a conversion between an SNMP UDP port and a CPE IP address, or performing an SNMP UDP port and a CPE. IP+UDP port=161 or 162 conversion corresponding mechanism setting, and the SNMP server can be set to use different UDP port to manage CPE, so as to achieve the goal of letting the SNMP server correctly manage CPE; a super high speed management can achieve the above object A system in which a digital subscriber loop accesses a network of client devices, including:

1. If the managed CPE device provides the change of the SNMP UDP port function, the original SNMP UDP port=161 and 162 settings can be changed, and different UDP ports are set through the SNMP server, except for 161 and 162, the different CPEs are managed, and By setting the mapping mechanism between the SNMP UDP port and the CPE IP address by the HGW, the server can use a UDP port, except for 161 and 162, to perform a "Get" or "Set" action on a specific CPE, and CPE Use another UDP port to execute the "trap" action to report the event to the server, so that the SNMP server can correctly manage the CPE through the HGW.

2. If the CPE cannot provide the UDP port function to change the SNMP management, that is, the original SNMP UDP port=161 and 162 settings must still be used, then different UDP ports are set through the SNMP server, except for 161 and 162, the different CPEs are managed, and By HGW executing the SNMP UDP port and CPE IP+UDP port=161 or 162 conversion corresponding mechanism setting, the server can use a UDP Port, except for Port 161 and Port 162, converted to IP address and UDP via HGW. Port=161 performs the "Get" or "Set" action on the CPE, and the CPE uses UDP port=162 to convert the HGW to another IP address and UDP port. Except for 161 and 162, the "trap" action is executed to event (event ) to the server, to achieve the purpose of the SNMP server to correctly manage the CPE through the HGW;

3. In addition, the HGW starts the DHCP server function, and the CPE uses the DHCP mode to configure the IP address structure by the HGW. The HGW sets the DHCP optional parameter bit segment (DHCP option) to 60/61/125 message corresponding to the fixed IP address. The address function, according to the CPE, carries the DHCP option 60/61/125 message to assign a fixed IP address to the CPE, so as to achieve the goal of the CPE to obtain a fixed IP address by using the DHCP method, and enable the SNMP server to fix the IP according to the CPE. The address is managed to the CPE.

Referring to FIG. 1 , a functional module diagram of a system for managing a client device of an ultra-high-speed digital subscriber loop access network for implementing the present invention is a network gateway for receiving a network home in a VDSL 2 (HGW). The device is configured to implement an SNMP UDP port/DHCP option traffic detection and processing module 10, and the SNMP UDP port/DHCP option traffic detection and processing module 10 is configured to execute an SNMP UDP port and a DHCP option 60. /61/125 traffic detection and corresponding processing work, further includes: an SNMP UDP port traffic detecting unit 11, the SNMP UDP port traffic detecting unit 11 is used for detecting and judging the SNMP server or the home CPE The agreement is a UDP protocol and an SNMP UDP port value message; an SNMP UDP port message processing unit 12, the SNMP UDP port message processing unit 12 will read the UDP protocol read by the SNMP UDP port message detecting unit 11. Analyze and judge the UDP port value and perform corresponding processing. According to the SNMP UDP port value read and the UDP port value and IP corresponding table set in the HGW, if the value is consistent with the previously set value, it will automatically respond. To set IP or IP+UDP port=161 or 162 value; a DHCP option message detecting unit 13 for detecting whether the message sent by the home CPE device is a DHCP option 60 a message of 61 or 125; a DHCP option message processing unit 14, the DHCP option message processing unit 14 internally identifies the DHCP option 60, 61, or 125 message read by the DHCP option message detecting unit 13. The parameter (Identifier) is used for analysis and judgment, and the program including the option 60 message is described in detail as the identification parameter is the Vendor Class parameter, the Option 61 information identity identifier (IAID) and the dynamic host configuration protocol single. The DHCP Unique Identifier (DUID) Client Identifier identification parameter, or the Vendor-Identifying Vendor Class Identifier of the option 125 message, and the HGW based on the read DHCP option 60, 61 or 125 message internal identification parameters. The identification parameter set in advance is corresponding to the table for analysis and comparison. If the identification parameter is consistent with the previously set parameter value, Corresponds to the fixed IP address is automatically set, and configure the CPE device addresses to IP addresses.

Referring to FIG. 1 and FIG. 2, an architecture diagram of a system for managing a client device of an ultra-high-speed digital subscriber loop access network includes: a CPE device 2, which is a home internal network. Technology, such as Ethernet, Wireless, HomePNA, or HomePlug, connects to Home Network Gateway (HGW)1; a family Network gateway (HGW) 1, the home network gateway (HGW) 1 further includes an SNMP UDP port/DHCP option traffic detection and processing module 10 to perform SNMP UDP port/DHCP option communication The detection and corresponding mechanism, and the VDSL2 access network is connected to the DSLAM device 3 of the computer room; an SNMP server device 5, the SNMP server device 5 performs "Read" or "Set" on the management CPE device 2 ( The Set) command, the management CPE device 2 will respond to send a "trap" to the server after receiving the command, and actively bring out the SNMP UDP port message, and through the home network gateway (HGW) 1 according to the SNMP server device 5 or The SNMP UDP port message carried out by the CPE device 2 performs the corresponding work of the traffic, and then passes through the DSLAM device 3 Connected to the IP backbone network 4, and transmits it to the SNMP server apparatus 5; wherein the traffic information detection unit DHCP option 13 and DHCP option The corresponding processing unit 14 operates in such a manner that the CPE device 2 actively brings out the DHCP option 60, 61 or 125 message and transmits the DHCP option 60, 61 or 125 through the home network gateway (HGW) 1 according to the CPE device 2. The message performs the corresponding work of the traffic, and corresponds to the set fixed IP, and then connects to the IP backbone network 4 via the DSLAM device 3 of the network terminal.

In addition, the home network gateway (HGW) 1 must have SNMP UDP port and DHCP option traffic detection and corresponding mechanism, and must provide SNMP UDP port and DHCP option 60/61/125 numerical analysis and corresponding functions, which can The SNMP UDP port traffic corresponds to the correct IP or IP+UDP port=161/162, or the DHCP option 60/61/125 traffic is mapped to the correct fixed IP address, ensuring that the carrier uses VDSL2 to access the network. When the client HGW device starts the function of Routed mode and NAT, the SNMP server can correctly manage the CPE through SNMP.

The system for managing the user equipment of the ultra-high-speed digital user loop access network is provided by the present invention, and has the following advantages when compared with other conventional technologies:

1. The invention uses the HGW to perform the conversion corresponding setting between the SNMP UDP port and the CPE IP, or performs the conversion corresponding mechanism setting between the SNMP UDP port and the CPE IP+UDP port=161 or 162, and can be set differently with the SNMP server. The UDP port manages the CPE, and solves the problem that the carrier VDSL2 accesses the network in the HGW setting the Routed mode and starts the NAT function, so that the SNMP server cannot directly connect to the HGW back-end CPE.

2. The present invention is to perform the conversion between the SNMP UDP port and the CPE IP by using the HGW under the function of setting the Routed mode and starting the NAT by the HGW, or performing the SNMP UDP port and the CPE IP+UDP port=161 or 162. The conversion corresponding mechanism is set to solve the problem that the SNMP server cannot directly manage the CPE.

3. The present invention uses the HGW to set the Routed mode and activates the NAT and DHCP server functions, and the CPE uses the DHCP method to obtain the IP address from the HGW, and the HGW sets the DHCP option 60/61/125 message corresponding to the fixed IP address function. The DHCP option 60/61/125 message sent by the CPE assigns a fixed IP address to the CPE, which solves the problem that the CPE uses the DHCP method to obtain a fixed IP address.

4. The present invention is based on the CPE configuration method in which the CPE uses the HGW to configure the IP address, and the first place uses the HGW to set the DHCP option 60/61/125 message corresponding to the fixed IP address function, according to the DHCP option 60/61/ brought by the CPE. The 125 message assigns a fixed IP address to the CPE, and solves the problem that the CPE uses the DHCP method to obtain a fixed IP address.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

To sum up, this case is not only innovative in terms of technical thinking, but also able to enhance the above-mentioned multiple functions compared with conventional articles. It should fully comply with the statutory invention patent requirements of novelty and progressiveness, and apply in accordance with the law. I urge you to approve this article. Invention patent application, in order to invent invention, to the sense of virtue.

10‧‧‧Traffic Detection and Corresponding Processing Module

11‧‧‧SNMP UDP port traffic detection unit

12‧‧‧SNMP UDP port traffic processing unit

13‧‧‧DHCP option traffic detection unit

14‧‧‧DHCP option traffic processing unit

1‧‧‧Home Network Gateway (HGW)

2‧‧‧CPE equipment

3‧‧‧DSLAM equipment

4‧‧‧IP backbone network

5‧‧‧SNMP Server equipment

1 is a schematic diagram of a functional module of a system for managing a user equipment of an ultra-high speed digital subscriber loop access network; and FIG. 2 is a user equipment for managing an ultra-high speed digital subscriber loop access network The architecture diagram of the system.

1‧‧‧Home Network Gateway (HGW)

10‧‧‧Traffic Detection and Corresponding Processing Module

2‧‧‧CPE equipment

3‧‧‧DSLAM equipment

4‧‧‧IP backbone network

5‧‧‧SNMP Server equipment

Claims (4)

A system for managing a client device of an ultra-high-speed digital subscriber loop access network includes: a client device that connects to a home network gateway using home network technology; and a home network gateway The home network gateway further includes a traffic detection and corresponding processing module to perform a traffic detection and corresponding mechanism, and connect the network to the digital terminal of the computer room by using an ultra-high speed digital user loop. The loop accesses the multiplexer device; a simple network management protocol server device, the simple network management protocol server device executes the program to manage the client device, and the client device responds to send the message through the home network gateway device. The message sent by the simple network management protocol server device or the client device performs the corresponding task of the communication, and then the multiplexer device is connected to the network protocol backbone network through the digital circuit loop, and then transmitted to the simple network management protocol. The server device; the traffic detection and corresponding processing module of the home network gateway further comprises: a network simple management protocol user data report protocol The detection unit, the network simple management protocol user data report protocol, the traffic detection unit is used for detecting and judging the agreement brought by the simple network management protocol server device or the home client device as the user datagram. The numerical information of the agreement and the simple management agreement user data report protocol; a network simple management protocol user data report protocol, the traffic corresponding processing unit, the network simple management protocol user data report protocol, the traffic corresponding processing unit According to the read network management protocol, the user data report protocol value is compared with the user data protocol agreement set in the home network gateway device and the network protocol address corresponding table. If the value is If the values set in advance are the same, they will automatically correspond to the set network. Protocol Addressing or Network Protocol Addressing + User Datagram Protocol 埠 Value = 161 or 162 values. A system for managing a client device of an ultra-high-speed digital subscriber loop access network, as described in claim 1, wherein the home network gateway device includes a traffic detection and corresponding processing module; The dynamic host configuration protocol parameter segment traffic detection unit, the dynamic host configuration protocol parameter segment traffic detection unit is configured to detect whether the message brought by the user equipment is a dynamic host configuration protocol parameter bit segment 60, a message of 61 or 125; a dynamic host configuration protocol parameter bit segment corresponding to the processing unit, the dynamic host configuration protocol parameter bit segment corresponding to the processing unit will dynamically configure the protocol parameter bit segment, and read the dynamic host configuration protocol parameter The internal identification parameter of the bit segment 60, 61, or 125 is analyzed and judged. If the identification parameter is consistent with the previously set parameter value, it automatically corresponds to the set fixed network protocol address, and the network protocol address is configured. Client device. A system for managing a client device of an ultra-high speed digital subscriber loop access network, as described in claim 2, wherein the dynamic host configuration protocol parameter segment 60, 61 or 125 message may include a parameter bit segment 60 message. The identification parameter, the parameter bit segment 61, the message identification related parameter and the dynamic host configuration protocol single identification parameter identification parameter, or the parameter bit segment 125 message identification parameter. A system for managing a client device of an ultra-high-speed digital subscriber loop access network, as described in claim 1, wherein the home network gateway activates a simple network management protocol server device function, the user The end device shall take the initiative to bring out the dynamic host configuration protocol parameter segment 60, 61 or 125 message.