KR100809438B1 - Apparatus and method for vlan frame management for terminal control in gigabit-capable pon system - Google Patents

Abstract

An apparatus and a method for processing a VLAN frame for terminal control within a GPON system are provided to indirectly connect information about a terminal of a GPON(Gigabit Passive Optical Network) slave party in a switch by connecting terminated port ID information within a GPON master device to an upper switch through VLAN tag frame processing, thereby performing inter-complement between the GPON master device and the switch. An apparatus for processing a VLAN frame comprises the follows. An uplink input unit(221) receives uplink data, including a VLAN(Virtual Local Area Network) tag frame corresponding to port ID(Identification) information in a GPON(Gigabit Passive Optical Network) system, from a GPON master device(210). An uplink processor(222) extracts a VLAN ID from the VLAN tag frame, stores an MAC(Media Access Control) address of a termination terminal device as an origination address of the uplink data in an MAC table(223) together with the extracted VLAN ID, and transmits the uplink data to an upper switch(230). The MAC table stores the MAC address information of the terminal device and the VLAN ID information by learning or initial CPU(Central Processing Unit) setup. A downlink input unit(224) receives downlink data going to a lower GPON system from the switch. A downlink lookup unit(225) searches a destination address of the received downlink data from the MAC table, and confirms VLAN ID corresponding to the destination address. A downlink processor(226) includes the confirmed VLAN ID in the downlink data as a tag frame, and transmits the downlink frame to the GPON master device.

Description

Apparatus and Method for VLAN Frame Management for terminal control in Gigabit-capable PON system}

1 is a view showing the overall system configuration including a virtual LAN (VLAN) tag frame processing apparatus in a Gigabit-capable PON (GPON) system according to an embodiment of the present invention,

2 is a view showing the internal configuration of the VLAN tag frame processing apparatus according to an embodiment of the present invention,

3 is a view showing in detail the configuration of the VLAN tag frame processing apparatus in FIG. 2 according to an embodiment of the present invention.

4 is a flowchart illustrating a method for processing a VLAN tag frame for uplink data directed to an upper switch according to an embodiment of the present invention.

5 is a flowchart illustrating a method of processing a VLAN tag frame for downlink data directed to a lower GPON system according to an embodiment of the present invention.

6 is a diagram illustrating a MAC table configuration in a VLAN tag frame processing apparatus according to an embodiment of the present invention.

The present invention relates to a VLAN (Virtual LAN) frame processing apparatus and a method for processing the terminal in a Gigabit-capable PON (Gigabit-capable PON) system, in detail, located between the GPON master device and the Ethernet switch GPON via VLAN information The present invention relates to a processing apparatus and a method for enabling control to a slave terminal apparatus. In particular, the present invention relates to a VLAN frame processing method and a device for directly controlling a terminal device connected to a GPON slave in an upper switch device of a GPON system.

PON (Passive Optical Network) is a passive optical line network, and refers to a structural form of a connection system of a subscriber network in which a line is formed only of passive components such as an optical coupler, a splitter, an optical branch, and a combiner as a circuit configuration method in a subscriber system. The PON technology is divided into three technologies, BPON (Broadband PON), EPON (Ethernet PON), and GPON (Gigabit PON). In particular, GPON (Gigabit-capable PON) combines three services such as voice, data, and video into one. With the development of converged Internet services, the existing last kilometer-long access technology, representing xDSL, cannot meet subscribers' demand for bandwidth, and more and more carriers are beginning to adopt FTTP technology. (PON) is attracting a lot of attention because it is the cheapest technology of its kind. In addition, GPON is expected to emerge as the mainstream technology of the future as equipment manufacturers and telecommunications operators around the world adopt GPON technology.

Currently, Ethernet bridges connect two or more LANs. Other bridges can be connected to the bridge's ports, and terminals or routers can be directly connected. Since the bridge handles the data link layer (Layer 2), the router handling the network layer (Layer 3) basically looks the same as a general terminal from the bridge point of view. In addition, one-to-one link or shared bus bus LAN can be connected to the bridge port.

When transmitting an Ethernet frame, it has a MAC address (DA) of a destination in the beginning of the frame and a MAC address (SA) of a source in the next. When a bridge receives these frames, it delivers them to the port where the destination is located. Whenever a frame is input, the bridge looks at the port where the frame is entered and records in the internal table that the SA MAC address is located at the corresponding input port.

In addition, the table entry corresponding to the DA value is found and read to determine which port can be connected to the corresponding destination, and send it to the corresponding port. The information about this DA value is recorded when the frame entered with SA is inputted before. In this way, bridged terminals or routers can communicate with each other without knowing their physical location using MAC addresses.

If the destination address is broadcast on the LAN, the frame is broadcast to all segments, and the bridge will float to all ports when it does not know where the destination is. The bridge also checks the entries in the table and deletes any entry that is not entered on any port as an SA.

This is to prevent flooding after the entry is deleted because the frame destined for the terminal is changed by using the old information when the port in which the terminal is located is changed to the wrong port. It is a means for resuming communication within a short time for the flooding occurred. An entry for a MAC address that is normally SA-free for five minutes is deleted. This process is called Aging.

In a bridged LAN, the network can be divided into multiple virtual LANs (VLANs). In this case, only terminals connected to the same VLAN are connected, and networks belonging to different VLANs are operated in such a manner that they are not connected to each other. These VLANs are used to reduce the overall network traffic by preventing frames from being broadcast between LAN segments that do not need to communicate with each other when the bridged network grows, and for security reasons restrict frame forwarding to specific groups. It is also used for.

When a VLAN is used, the Ethernet frame has an indication of which VLAN the frame belongs to. This is called a VLAN tag, and there is a VLAN identifier (VID) with a priority of the frame. A bridge with VLAN capability knows which ports belong to its members for each VLAN, so when it broadcasts, it broadcasts only to port groups belonging to that VLAN. VLAN tagging can be done while sending frames from the terminal, but VLAN tagging is usually done on the network, and it can be attached on a port-by-port or protocol-by-network basis.

The division of bridged networks into VLANs is done by provision, and this information can be set manually for each bridge, and information set in one bridge is propagated to all bridges connected to the LAN through the Generic VLAN Registration Protocol (GVRP). Each bridge in the network can then be known which port is a member port of which VLAN. A port can be a port member of multiple VLANs.

ITU-T 984 established a standard specification for Gigabit PON (GPON), where Port ID is included in the header area of the G-PON Encapsulation Module (GEM) for delivering variable-length packets to provide 4096 to provide traffic multiplexing. Used as the unique traffic identifier.

In this regard, in the GPON master device accommodating the above-mentioned standard, the terminal device can be identified by the port ID using the Port ID, but there is no method of identifying the identifier thereof in the upper switch. Therefore, there is a problem in that direct processing from the upper switch to the ONT terminal device is impossible.

The present invention proposes a VLAN frame processing apparatus for terminal control in a GPON system of an upper switch and a processing method thereof, and provides a VLAN tag for port ID information terminated in a GPON master device to an upper switch. With the configuration providing the function of learning the frame and the source address, if the upper switch sends down the destination address that matches the source address, the configuration is looked up, the VLAN Tag frame is inserted, and sent down to the GPON master device. As a result, it is possible to restore the Port ID to the GPON master device, so that control from the switch to the ONT terminal is possible.

In one preferred embodiment of the present invention for achieving the above technical problem, a VLAN frame processing apparatus for controlling a terminal in a GPON system of an upper switch may include a VLAN (Virtual LAN) corresponding to Port ID information in a Gigabit Passive Optical Network (GPON) system. An uplink input unit for receiving uplink data including a tag frame from a GPON master device, and extracting a VLAN ID from the VLAN tag frame and extracting a VLAN ID from the VLAN tag frame to a MAC table of an end terminal device which is the source address of the uplink data. And a MAC table storing MAC address information and VLAN ID information of the terminal device by learning or initial CPU setting, and downlink data from the upper switch to the lower GPON system by an upstream processor for transmitting the upstream data to the upper switch. Downlink input unit for receiving, the destination address of the received downlink data to the MAC table And a downlink lookup unit for searching for and identifying a VLAN ID corresponding to the destination address, and a downlink processor for including the identified VLAN ID as a tag frame in the downlink data and transmitting the downlink frame to a GPON master device.

In one preferred embodiment of the present invention for achieving the above technical problem, a method for processing an uplink VLAN frame for controlling a terminal in a GPON system of a higher switch includes a VLAN corresponding to Port ID information in a Gigabit Passive Optical Network (GPON) system. LAN) receiving uplink data including a tag frame from a GPON master device, extracting a VLAN ID from the VLAN tag frame, together with the extracted VLAN ID, the MAC address of an end terminal device as the source address of the uplink data And storing the MAC table including the MAC address information and the VLAN ID information of the terminal for the data that has passed through, and transmitting the upstream data to an upper switch after storing the MAC table.

According to an embodiment of the present invention for achieving the above technical problem, a method of processing a downlink VLAN frame for controlling a terminal in a GPON system of an upper switch may receive downlink data from a higher switch to a lower Gigabit Passive Optical Network (GPON) system. The method may further include: recognizing a VLAN ID corresponding to the destination address by searching in a MAC table including MAC address information and VLAN ID information of the terminal for data passing through the destination address of the received downlink data. Including the VLAN ID in the downlink data as a tag frame and transmitting the downlink data including the tag frame to a GPON master device.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating an overall system configuration including an apparatus for processing a virtual LAN (VLAN) tag frame in a Gigabit-capable PON (GPON) system according to an exemplary embodiment of the present invention.

In the GPON system, the terminal device 100 under the GPON slave 111 as the optical network terminator 110 may transmit Port ID information to the optical line termination 130 through the splitter 120. The GPON master device 131 is provided. However, the Port ID information provided in this way is replaced by the VLAN tag in the GPON master device 131 and transmitted to the Ethernet switch 133 which is the upper network. In this case, the VLAN tag frame processing device 132 of the present invention transmits the GPON master device ( 131 and the Ethernet switch device 133 to process the VLAN tagged frame.

In the present invention, the VLAN tag frame processing apparatus 132 is located between the GPON master device 131 and the Ethernet switch 133 in the GPON system as mentioned above, and the lower terminal device 100 of the ONT 110. If the information of MAP is mapped to Port ID information by the GPON slave 111 and sent to the upper level, the information converted into the VLAN tag converted by the GPON master device 131 is stored in the MAC table and the frame is transferred to the upper switch. Send to complete the upstream process.

In the case of downlink, the information about the frame sent from the upper switch to the lower GPON system is checked in the MAC table so that the required GPON master port can be connected and connected to the corresponding port. It will work smoothly.

2 is a diagram showing the internal configuration of a VLAN tag frame processing apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the VLAN frame processing apparatus 220 receives uplink data including a VLAN (Virtual LAN) tag frame corresponding to Port ID information from a GPON master device 210 in a Gigabit Passive Optical Network (GPON) system. Extracts a VLAN ID from the upstream input unit 221 and the VLAN tag frame and stores the MAC (Media Access Control) address of the end terminal device, which is the source address of the uplink data, together with the extracted VLAN ID in the MAC table 223. And an upstream processor 222 for transmitting the upstream data to the upper switch 230, a MAC table 223 for storing MAC address information and VLAN ID information of the terminal device by learning or initial CPU setting, and a lower GPON from the upper switch. A downlink input unit 224 for receiving downlink data directed to a system, and searching the MAC table 223 for a destination address of the received downlink data corresponding to the destination address; And a downlink lookup unit 225 for identifying a VLAN ID and a downlink processor 226 for including the identified VLAN ID as a tag frame in the downlink data and then transmitting the downlink frame to the GPON master device.

In particular, the upstream input unit 221 stores the received upstream data in an upstream input buffer, and provides length information on the data located in front when the stored upstream data is one or more. The uplink data to be processed is extracted from the uplink input buffer based on the length information on the data located in the upstream input buffer according to the order, and the VLAN ID is extracted from the VLAN tag frame.

In detail, the upstream processor 222 extracts a VLAN ID from the VLAN tag frame of the upstream data and stores the MAC address of the terminal device, which is the source address of the upstream data, together with the extracted VLAN ID, in the MAC table 223. An uplink storage unit for storing the uplink data, an uplink VLAN tag remover for removing the VLAN tag frame used to extract the VLAN ID from the uplink data, and a new frame check sequence field (FCS) value after the removal of the VLAN tag frame; It consists of an uplink transmitter for transmitting to the upper switch. The upstream processor 222 checks the MAC address of the terminal device, which is the source address of the uplink data, in the MAC table 223, and if the corresponding value exists, extracts the extracted VLAN ID and the MAC address from the MAC table ( 223).

Each entry in the MAC table 223 has a different entry associated with it, and the upstream processor 222 checks the MAC address of the terminal device, which is the source address of the uplink data, in the MAC table 223 when the MAC address is checked. And confirming together another entry associated with the entry for, the down lookup unit 225 retrieves another entry associated with the entry for the destination address upon retrieving the destination address of the received downlink data from the MAC table 223. It is assumed that the VLAN ID corresponding to the destination address is searched together. The upper switch 230 is assumed to be an Ethernet switch of the upper network. One MAC table 223 exists for each GPON master device 210 to manage each GPON master device 210.

As such, the VLAN tag frame processing apparatus 220 replaces Port ID information terminated in the GPON master device 210 with VLAN Tag frame information so that frames inputted and outputted to the upper network port are discarded after learning the corresponding VLAN Tag frame. The frame input / output to the lower PON port is a device that allows the GPON master device 210 to recognize the corresponding Port ID by looking up and reproducing the VLAN Tag frame. In the case of the same GPON master device 210, up to three 1 gigabit ports are managed and processed by one MAC table 223, so that even when the up and down ports are different, the learned addresses are easier to look up and unnecessary broadcast frames are generated. When the switch 230 is directed downward, when the lookup fails, the broadcast VLAN ID is inserted into the VLAN tag frame and processed to prevent the lookup from being flooded due to the failure of the lookup. Let's do it.

3 is a view showing in detail the configuration of the VLAN tag frame processing apparatus of FIG. 2 according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating the internal configuration of the VLAN tag frame processing apparatus 220 in detail according to the flow of data.

Referring to FIG. 3, the downlink input buffer 301 stores a frame input from the outside and, if there is more than one frame, provides the frame to the down lookup unit 302 while providing the length information of the frame in front of it. Inform the process.

The downlink lookup unit 302 receives a request from the downlink input buffer 301 and the downlink input buffer when the space remaining in the downlink output buffer 305 is larger than the length of the frame waiting in front of the downlink input buffer 301. 301 reads the MAC table 320 for the DA value, finds the VLAN ID corresponding to the destination, and sends it to the VLAN tag insertion unit 303.

In this case, if the corresponding VLAN ID is not found, the corresponding VLAN ID value is sent to the GPON master device. In particular, by mapping three ports to one FDB table (MAC table, 320), even if the location of the input port and output port is different, it is possible to find the VLAN ID more easily when the same GPON master device is sourced. . The frame check sequence field generation unit 304 calculates a new FCS value for the frame processed by the VLAN tag insertion unit 303 and inserts the new FCS value into the frame. The frame check sequence field (FCS) is used for error detection of frame content, and a CRC code is generally used.

The downlink output buffer 305 stores frames before the frame passing through the downlink multicast block is read by the downlink transmitter and actually transmitted. When the read signal is received, the frame is transmitted to the downlink transmitter.

The upstream input buffer 306 is a place waiting to process a frame transmitted from the GPON master device. When there is one or more frames inside, the upstream input buffer 306 is provided to the upstream learner 307 together with the length information of the frame in front of the queue. When a read signal is received due to processing, the frame is transmitted to the uplink learner 307.

If there is a frame in the upstream input buffer 306, the upstream learner 307 learns the SA value for all frames inputted by reading the VLAN ID value in the VLAN tag frame to which UE the corresponding MAC address comes from. Is extracted and recorded in the MAC table 320.

The uplink VLAN tag remover 308 removes a VLAN tag frame used for VLAN ID extraction from the frame received from the uplink learner 307. Thereafter, a new FCS value is calculated by the FCS generator 309 and connected to the upstream output buffer 310.

The upstream output buffer 310 is a frame where the frame is stored before being output to the network port, and functions to read and output the frame according to the speed of the output port.

The MAC table 320, also called a filtering DB (FDB) table, has SA and VLAN ID information, which is port information on which it is located, for each MAC address learned or set by the CPU. In addition, each entry has a V bit indicating whether the entry is valid, an S bit indicating whether the entry is a static entry by setting the CPU, not created by learning, and an A indicating that the entry is an old entry (old entry). Contains a bit.

The A bit is set to 1 periodically by the CPU and is reset to 0 by hardware whenever a frame with the entry's MAC address is SA, as long as the CPU reads the entry the next time and is still 1 It lets you know that an entry is an old entry that was not observed during the cycle, so that it can be cleared.

4 is a flowchart illustrating a method of processing a VLAN tag frame for uplink data directed to an upper switch according to an exemplary embodiment of the present invention.

This is a process of processing a VLAN tag frame in uplink data, which is a frame transmitted from a GPON master device to an upper Ethernet switch. Referring to FIG. 4, a VLAN corresponding to Port ID information in a Gigabit Passive Optical Network (GPON) system is illustrated. Virtual LAN) After receiving the uplink data including the tag frame from the GPON master device (401), the VLAN ID is extracted from the VLAN tag frame (402) and the terminal which is the source address of the uplink data together with the extracted VLAN ID. In operation 403, the MAC address of the terminal device is stored in a MAC table including MAC address information and VLAN ID information of the terminal for data passing through the MAC address. After storing the MAC table, the uplink data is transmitted to an upper switch (404).

When storing the address of the lower terminal that is the source address together with the VLAN ID in the MAC table (403), if the MAC address of the terminal device that is the source address of the upstream data is checked in the MAC table, the corresponding value exists. The extracted VLAN ID and the MAC address are not stored in the MAC table, and when the MAC address of the end terminal device, which is the source address of the uplink data, is checked in the MAC table, each entry in the MAC table is associated with another entry. It is assumed that other entries associated with the entry for the MAC address are checked together.

5 is a flowchart illustrating a VLAN tag frame processing method for downlink data directed to a lower GPON system according to an exemplary embodiment of the present invention.

This is a process of processing a VLAN tag frame in downlink data, which is a frame transmitted from an upper switch to a lower GPON master device. Referring to FIG. 5, the downlink data received from the upper switch to the lower Gigabit Passive Optical Network (GPON) system is received. Afterwards (501), the destination address of the received downlink data is searched in the MAC table including the MAC address information and the VLAN ID information of the terminal for the data and confirms the VLAN ID corresponding to the destination address ( 502). The identified VLAN ID is included in the downlink data as a tag frame (503), and the downlink data including the tag frame is transmitted to the GPON master device (504).

Each entry in the MAC table has a different entry associated with it, so that when a destination address of the received downlink data is retrieved from the MAC table to determine a VLAN ID corresponding to the destination address (502), an entry for the MAC address is obtained. It is assumed that other entries associated with and are searched together.

When the checked VLAN ID is included in the downlink data as a tag frame (503), when the VLAN ID corresponding to the destination address is confirmed (502), if the VLAN ID is not confirmed, it corresponds to a broadcast. It is assumed that a VLAN ID is included in the downlink data as a tag frame.

6 is a diagram illustrating a MAC table configuration in a VLAN tag frame processing apparatus according to an embodiment of the present invention.

This is an example of the MAC table. Since the MAC address is 48 bits and can have 2 ⁴⁸ values, in order to learn or look up with limited memory, multiple MAC addresses must share less storage space. In the case of 4K entries, a 12-bit entry address must be obtained using a 48-bit MAC address.

This entry address is easily obtained by dividing the MAC address by CRC32 calculation, which is a common method, and taking the lower 11 bits. In the present invention, in order to utilize the resources of the table more efficiently, the entry address thus obtained can be used simultaneously with the associated address located at a certain offset.

This is possible by looking at the associated address at the same time when looking up or learning. In other words, while learning the address obtained by the hash and other address associated with it at the same time, the information about the MAC is not recorded yet. Look at other related addresses at the same time and select if there is information about the MAC. By doing this, the chances of not being able to learn or look up due to lack of space due to the same hash value in the MAC table can be much lowered.

The invention can also be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention belongs.

Such a method and apparatus of the present invention have been described with reference to the embodiments shown in the drawings for clarity, but these are merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand. Therefore, the above description is just one embodiment for implementing a scalable MCID allocation method for transmitting IPv6 multicast packets in an IEEE 802.16 / WiBro network according to the present invention. Without departing from the gist of the present invention as claimed in the following claims, the technical spirit of the present invention to the extent that various modifications can be made by those skilled in the art to which the invention belongs. Will be said. In addition, the true technical protection scope of the present invention will be defined by the appended claims.

The present invention relates to a VLAN (Virtual LAN) frame processing device for terminal control in a Gigabit-capable PON (GPON) system and a processing method thereof, and connects Port ID information terminated in a GPON master device to a higher switch using VLAN Tag frame processing technology. By indirectly connecting the information on the terminal of the GPON slave side in the switch to propose a complementary method between the GPON master device and the switch. It performs the learning function on the frame going up through the MAC table and the look up function on the frame going down to enable the terminal control in the GPON system in the Ethernet switch and maximize the overall bandwidth allocation efficiency of the GPON system. By providing the functions necessary for the commercialization of the GPON system.

Claims (21)

An upstream input unit for receiving uplink data including a virtual LAN (VLAN) tag frame corresponding to Port ID information from a GPON master device in a Gigabit Passive Optical Network (GPON) system; An upstream processor configured to extract a VLAN ID from the VLAN tag frame, store a MAC address of an end terminal device, which is a source address of the upstream data, together with the extracted VLAN ID in a MAC table, and transmit the upstream data to an upper switch; A MAC table for storing MAC address information and VLAN ID information of the terminal device by learning or initial CPU setting; A downlink input unit configured to receive downlink data from an upper switch to a lower GPON system; A downlink lookup unit configured to search for a destination address of the received downlink data in the MAC table to determine a VLAN ID corresponding to the destination address; And VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch, characterized in that it comprises a; downlink processing unit for transmitting the downlink frame to the GPON master device after including the identified VLAN ID in the downlink data; . The method of claim 1, The upstream input unit stores the received upstream data in an upstream input buffer and provides length information on the data located in front when the stored upstream data is one or more. The upstream processor extracts a VLAN ID from a VLAN tag frame by acquiring upstream data to be processed from the upstream input buffer based on length information of data located ahead of the data in the upstream input buffer. VLAN frame processing device for terminal control in GPON system. The method of claim 1, The upstream processor An upstream storage unit for extracting a VLAN ID from the VLAN tag frame of the upstream data and storing the MAC address of an end terminal device, which is the source address of the upstream data, together with the extracted VLAN ID in a MAC table; An uplink VLAN tag remover configured to remove a VLAN tag frame used for extracting the VLAN ID from the uplink data; And VLAN frame for terminal control in the GPON system of the upper switch, characterized in that consisting of; uplink transmission unit for transmitting the uplink data to the upper switch by calculating a new frame check sequence field (FCS) value after removing the VLAN tag frame. Processing unit. The method of claim 1, Each entry in the MAC table includes a first bit indicating whether the entry is valid, a second bit indicating whether the entry is generated by initial CPU setting, and whether the entry is an old entry without a call for a period of time. VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch comprising at least one of the third bit. The method of claim 4, wherein The third bit is periodically initialized by the CPU and when the value of the third bit is changed when new VLAN ID information is stored in the entry, whether or not the call is in the period of the entry can be confirmed. VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch. The method of claim 1, The upstream processor checks the MAC address of the end terminal device, which is the source address of the uplink data, in the MAC table and does not store the extracted VLAN ID and the MAC address in the MAC table when a corresponding value exists. VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch. The method of claim 6, Each entry in the MAC table has a different entry associated with it, The upstream processor checks the MAC address of the terminal device, which is the source address of the uplink data, in a MAC table, together with other entries associated with the entry for the MAC address. The downlink lookup unit, when searching for the destination address of the received downlink data in the MAC table, searches for another entry associated with the entry for the destination address together to identify a VLAN ID corresponding to the destination address. VLAN frame processing device for terminal control in GPON system of switch. The method of claim 1, The downlink input unit stores the received downlink data in a downlink input buffer and provides length information about downlink data located in front of the downlink data when the stored downlink data is one or more. The downlink lookup unit reads the downlink data into the downlink output buffer when the downlink output buffer has a space larger than the length of the downlink data located ahead of the downlink input buffer in order in the downlink input buffer. VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch, characterized in that the VLAN ID corresponding to the destination address. The method of claim 1, If the downlink processing unit fails to identify the VLAN ID corresponding to the destination address of the downlink data in the downlink lookup unit, the downlink data includes the VLAN ID corresponding to the broadcast as the tag frame in the downlink data and then includes the downlink data in the GPON master. VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch characterized in that the transmission to the device. The method of claim 1, The upper switch is a VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch, characterized in that the Ethernet switch of the upper network. The method of claim 1, The MAC table exists one for each GPON master device to manage each of the GPON master device VLAN frame processing apparatus for the terminal control in the GPON system of the upper switch. Receiving uplink data including a virtual LAN (VLAN) tag frame corresponding to Port ID information from a GPON master device in a Gigabit Passive Optical Network (GPON) system; Extracting a VLAN ID from the VLAN tag frame; Storing the MAC address including the MAC address information and the VLAN ID information of the terminal for the data passing through the MAC address of the terminal device that is the source address of the uplink data together with the extracted VLAN ID; And And transmitting the upstream data to an upper switch after storing the MAC table. The upstream VLAN frame processing method for controlling a terminal in a GPON system of an upper switch. The method of claim 12, The transmitting of the upstream data to an upper switch, Removing the VLAN tag frame used for extracting the VLAN ID from the upstream data; And Calculating a new frame check sequence field (FCS) value for the uplink data and transmitting the uplink data to an upper switch; uplink VLAN processing for controlling a terminal in a GPON system of an upper switch Way. The method of claim 12, Each entry in the MAC table includes a first bit indicating whether the entry is valid, a second bit indicating whether the entry is generated by initial CPU setting, and whether the entry is an old entry without a call for a period of time. The uplink VLAN frame processing method for controlling the terminal in the GPON system of the upper switch comprising at least one of the third bit. The method of claim 14, The third bit is periodically initialized by the CPU and when the value of the third bit is changed when new VLAN ID information is stored in the entry, whether or not the call is in the period of the entry can be confirmed. Upstream VLAN frame processing method for the terminal control in the GPON system of the upper switch. The method of claim 12, In the step of storing the address of the lower terminal which is a source address with the VLAN ID in the MAC table, The MAC address of the end terminal device, which is the source address of the uplink data, is checked in a MAC table, and if there is a corresponding value, the extracted VLAN ID and the MAC address are not stored in the MAC table. Uplink VLAN frame processing method for terminal control in GPON system. The method of claim 16, Each entry in the MAC table has another associated entry, In the step of storing the address of the lower terminal which is a source address with the VLAN ID in the MAC table, The uplink VLAN frame for controlling the terminal in the GPON system of the upper switch, when the MAC address of the terminal device, the source address of the uplink data, is checked in a MAC table, the other entry associated with the entry for the MAC address. Treatment method. Receiving downlink data from an upper switch to a lower Gigabit Passive Optical Network (GPON) system; Confirming a VLAN ID corresponding to the destination address by searching in a MAC table including MAC address information and VLAN ID information of the terminal for data passing through the destination address of the received downlink data; Including the identified VLAN ID in the downlink data as a tag frame; And And transmitting the downlink data including the tag frame to a GPON master device. The downlink VLAN frame processing method for controlling a terminal in a GPON system of an upper switch. The method of claim 18, Each entry in the MAC table has a different entry associated with it, Searching for the destination address of the received downlink data in the MAC table to determine a corresponding VLAN ID; And searching for another entry associated with the entry for the MAC address to determine a VLAN ID corresponding to the destination address. The method of claim 18, Including the identified VLAN ID in the downlink data as a tag frame, In the case where the VLAN ID corresponding to the destination address is not checked when the VLAN ID is not identified, the VLAN ID corresponding to the broadcast is included in the downlink data as a tag frame in the GPON system of the upper switch. Downlink VLAN frame processing method for terminal control. The method of claim 18, The upper switch is a downlink VLAN frame processing method for the terminal control in the GPON system of the upper switch, characterized in that the Ethernet switch of the upper network.

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