CN102413028A - User terminal equipment access number limitation method for multimedia over Coax alliance (MoCA) system - Google Patents

Abstract

The invention discloses a user terminal equipment access number limitation method for a multimedia over Coax alliance (MoCA) system. In the method, media access control (MAC) addresses, forwarded by a certain terminal and recorded by an MoCA head terminal, of user terminal equipment are counted on the central address memory (CAM) management part of a c.LINK driver of an MoCA; when the number of the MAC addresses reaches a permitted maximum access digital value which is configured in the c.LINK driver through an upper-layer user application program or a c.LINK application program, the recording of MAC addresses of the other user terminal equipment is stopped; and corresponding MAC addresses are not recorded in a CAM table, and data packets of the user terminal equipment cannot be forwarded, so the function of forbidding the network accessing of users is realized.

Description

The subscriber terminal equipment of MoCA system inserts the restricted number method

Technical field

The subscriber terminal equipment that the present invention relates to a kind of MoCA system inserts the restricted number method, belongs to adopt the communication technique field of MOCA technical scheme as access device.

Background technology

Along with the expansion of network unification of three nets, in conjunction with the national conditions of China, the access way of FTTB (FTTB) just the most suitable present CHINA RFTCOM Co Ltd change the net demand.But behind the FTTB, how to solve the transmission problem (last 100 meters problems) of building, become the radio and TV operator and developed multiple services bottleneck to the family.For addressing this problem, derive several kinds of EOC technology thus.MoCA is as a kind of important technology in numerous EOC technology; Its formulation from standard all is the transmission medium of coaxial cable as its signal; Have that high QOS (service quality) guarantees, extremely low shake and time-delay, therefore become more potential a kind of access technology in the EOC technology.

MoCA is as a kind of brand-new access technology, and is the same with other EOC technology, and the forwarding of data of just accomplishing is not carried out too much management to the user.But,, much count the radio and TV operator also on probation, stage of fumbling because the integration of three networks just just begins; Also be not equipped with BRAS equipment such as (Broadband Remote Access Server), the user can arbitrarily connect many station terminals equipment (referring to network access equipments such as computer, STB) and surf the Net, and causes Internet resources seriously to be taken; Make that the network bandwidth of other validated users is seized; Cause the online network speed to wait situation slowly, make reporting for repairment of user increase, increased maintenance workload; Also make the user that whole CHINA RFTCOM Co Ltd is produced unstable, insecure idea, the CHINA RFTCOM Co Ltd of influence is carried out the fltting speed of the integration of three networks.

Summary of the invention

The subscriber terminal equipment that technical problem to be solved by this invention provides a kind of MoCA system inserts the restricted number method, and this method can effectively solve a plurality of equipment of user and insert the problem that causes bandwidth-hogging.

In order to solve above-mentioned technical problem, technical scheme of the present invention is:

1) MAC Address that sends each terminal through user application or c.LINK application call c.LINK API storehouse to the c.LINK driver N that limits to a number or amount;

2) after the c.LINK driver receives the upstream data bag, in content-addressable memory, search the source destination address and whether exist;

3) if exist, then transmit data;

4) if do not exist, the quantity that detects the subscriber terminal equipment MAC Address in content-addressable memory whether＜N;

5) if the quantity＜N of the subscriber terminal equipment MAC Address in content-addressable memory or forbid limiting number of addresses then joins this subscriber terminal equipment MAC Address in the content-addressable memory, transmit data again;

6) if the quantity >=N of the subscriber terminal equipment MAC Address in content-addressable memory; Then the subscriber terminal equipment MAC Address quantity of expression record has reached maximum; Can't record this MAC Address in the content-addressable memory this moment; The MAC Address of this packet of MoCA system discovery is not in content-addressable memory, just this data packet discarding.

Having the MoCA system that subscriber terminal equipment inserts restricted number, can effectively limit disabled user's access, is the bandwidth that validated user can make full use of oneself, has reduced radio and TV operator's maintenance difficulties, has improved the reliability of whole M oCA system.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.

Fig. 1 is the block architecture diagram of MoCA head-end system.

Fig. 2 is the flow chart of the inventive method.

Embodiment

As shown in Figure 1, whole M oCA head-end system has comprised pci interface and parts such as driver, c.LINK driver, the bridge based on the linux system, Ethernet interface driver, c.LINK API storehouse, c.LINK application program and user application.

The c.LINK driver is responsible for management, the forwarding of data of registration, the content-addressable memory at initialization, the terminal of MoCA system, control request of response upper level applications etc., and other relevant issues of MoCA agreement.

So-called content-addressable memory, i.e. Content Addressable Memory is used for MAC Address in the packet that dynamically recording transmits, and processing such as wear out, and when having only MAC Address when packet in content-addressable memory, packet could be transmitted.

The content-addressable memory of MoCA is realized by c.LINK software, when the upstream data bag is transmitted, at first in content-addressable memory, searches the source MAC that whether has this packet, if do not have, then writes down this address.

Utilize this principle; The present invention is in the CAM administrative section of the c.LINK of MoCA driver; Add up the subscriber terminal equipment MAC Address quantity that transmit at a certain terminal of MoCA head end record; When reaching the greatest measure that upper-layer user's application program or c.LINK application deployment insert to the permission of c.LINK driver, stop the record of other subscriber terminal equipment MAC Addresss; Owing in content-addressable memory, do not write down corresponding M AC address, the packet of these subscriber terminal equipments just can not be transmitted, thereby plays the effect of forbidding user access network.

As shown in Figure 2, idiographic flow is following:

1) MAC Address that sends each terminal through user application or c.LINK application call c.LINK API storehouse to the c.LINK driver N that limits to a number or amount;

2) after the c.LINK driver receives the upstream data bag, in content-addressable memory, search the source destination address and whether exist;

3) if exist, then transmit data;

4) if do not exist, the quantity that detects the subscriber terminal equipment MAC Address in content-addressable memory whether＜N;

5) if the quantity＜N of the subscriber terminal equipment MAC Address in content-addressable memory or forbid limiting number of addresses then joins this subscriber terminal equipment MAC Address in the content-addressable memory, transmit data again;

6) if the quantity >=N of the subscriber terminal equipment MAC Address in content-addressable memory; Then the subscriber terminal equipment MAC Address quantity of expression record has reached maximum; Can't record this MAC Address in the content-addressable memory this moment; The MAC Address of this packet of MoCA system discovery is not in content-addressable memory, just this data packet discarding.

The foregoing description does not limit the present invention in any way, and every employing is equal to the technical scheme that replacement or the mode of equivalent transformation obtain and all drops in protection scope of the present invention.

Claims (1)

1. the subscriber terminal equipment of a MoCA system inserts the restricted number method, it is characterized in that may further comprise the steps:

1) MAC Address that sends each terminal through user application or c.LINK application call c.LINK API storehouse to the c.LINK driver N that limits to a number or amount;

2) after the c.LINK driver receives the upstream data bag, in content-addressable memory, search the source destination address and whether exist;

3) if exist, then transmit data;

4) if do not exist, the quantity that detects the subscriber terminal equipment MAC Address in content-addressable memory whether＜N;

5) if the quantity＜N of the subscriber terminal equipment MAC Address in content-addressable memory or forbid limiting number of addresses then joins this subscriber terminal equipment MAC Address in the content-addressable memory, transmit data again;

6) if the quantity >=N of the subscriber terminal equipment MAC Address in content-addressable memory; Then the subscriber terminal equipment MAC Address quantity of expression record has reached maximum; Can't record this MAC Address in the content-addressable memory this moment; The MAC Address of this packet of MoCA system discovery is not in content-addressable memory, just this data packet discarding.

Images