Address borrowing method in multiple Ethernet/PPPoE (point-to-point protocol over Ethernet) network hybrid transmission channels

Abstract

The invention discloses an address borrowing method in multiple Ethernet / PPPoE (point-to-point protocol over Ethernet) network hybrid transmission channels. According to the invention, through setting a processor in a core switch, and carrying out processing on data by the processor according to the scheme of the invention, under the condition that IPTV (internet protocol television) services are transmitted through a PPPoE network, a communication network enables the PPPoE network and the Ethernet to be simultaneously accessed into a network layer under the jurisdiction of a second-tier operator, thereby solving the problem that the communication outage is caused because switching equipment can not identify which Ethernet messages are used for bearing the IPTV services and which Ethernet messages are used for bearing common Ethernet-mode communication.

Description

technical field [0001] The invention relates to a communication technology, in particular to an address borrowing method in a multi-channel Ethernet and PPPoE network hybrid transmission channel. Background technique [0002] IPTV, or Interactive Network Television, is a brand-new technology that utilizes broadband cable TV network and integrates Internet, multimedia, communication and other technologies to provide home users with various interactive services including digital television. Users can enjoy IPTV services in two ways at home: (1) computer, (2) network set-top box + ordinary TV; it can well adapt to the current trend of rapid network development and fully and effectively use network resources. [0003] Due to the emergence of IPTV, the existing network structure has undergone significant changes: the network structure before the emergence of IPTV is as follows: figure 1 As shown, among them, the same first-level operator generally provides a single type of netwo...

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Problems solved by technology

[0004] The network structure after the appearance of IPTV is as follows: figure 2 As shown, with the emergence of IPTV, in order to promote its IPTV business, a first-tier operator needs to set up a DHCP server for line 1 on the network layer under its jurisdiction (see figure 2 Mark 10 in the center), the addition of a DHCP server is determined by the hardware conditions necessary for IPTV services, because the data stream of IPTV services is transmitted through Ethernet, so it is necessary to add a DHCP server; the change brought about is that only Line 1 that transmits PPPoE signals needs to transmit PPPoE signals and Ethernet signals at the same time; in this case, if the secondary operator continues to use the operation mode of mixed access of Line 1 and Line 2, the problem that will arise is: In order to provide IPTV business, the DHCP server shown in mark 10 will assign IP addresses to end customers (before the appearance of IPTV, because the line one bears the PPPoE signal, so no DHCP server is needed); at the same time, in order to ensure the operation of line two, the mark 20 shows The DHCP server will also assign IP addresses to end customers (and the DHCP server shown in mark 20 always exists due to the needs of Ethernet communication). When the Layer 2 switch at the intersection of two (the Layer 2 switch at this intersection can also be considered as a distribution gateway, it can connect PPPoE users to line 1 and Ethernet users to line 2 at the same time), because the Layer 2 The switch cannot identify whether the address of the end user is allocated by the DHCP server indicated by the mark 10 or by the DHCP server indicated by the mark 20. (As mentioned above, IPTV packets are transmitted in Ethernet mode) are randomly transmitted to the server on line 1 or line 2, which causes the Layer 2 switch to fail to ensure that the data transmitted in Ethernet mode communicates with the correct server, resulting in communication interruption ;At the same time, since the PPPoE signal is transmitted on the line 1 at the same time, the PPPoE signal contains definite address information. Relatively speaking, the IP address of the Ethernet signal is dynamically allocated by the DHCP server. It does not contain address information, which is one of the reasons why the Layer 2 switch cannot be recognized. Therefore, the communication of end users who only use PPPoE mode will not be affected

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