WO2006123456A1 - パケット処理装置、通信システム、パケット処理方法、および当該方法を実行させるプログラム - Google Patents
パケット処理装置、通信システム、パケット処理方法、および当該方法を実行させるプログラム Download PDFInfo
- Publication number
- WO2006123456A1 WO2006123456A1 PCT/JP2006/302227 JP2006302227W WO2006123456A1 WO 2006123456 A1 WO2006123456 A1 WO 2006123456A1 JP 2006302227 W JP2006302227 W JP 2006302227W WO 2006123456 A1 WO2006123456 A1 WO 2006123456A1
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- Prior art keywords
- packet
- processing device
- repetitive
- transmitted
- communication
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/50—Overload detection or protection within a single switching element
- H04L49/505—Corrective measures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2557—Translation policies or rules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Definitions
- Packet processing apparatus communication system, packet processing method, and program for executing the method
- the present invention relates to a packet processing apparatus that performs processing related to a packet, a communication system including the packet processing method, a packet processing method, and a program that executes the method.
- a predetermined packet is repeatedly transmitted to a server device.
- the communication processing device is, for example, a router having a network address translation (hereinafter referred to as NAT) function.
- NAT network address translation
- One purpose for the information processing device to repeatedly transmit the packet to the server device is to maintain the port of the communication processing device, and the other purpose is for a predetermined process in the server device.
- a communication processing device having a NAT function such as a router
- packets are transferred from the local area network (hereinafter referred to as LAN) side to the wide area network (hereinafter referred to as WAN) side.
- LAN local area network
- WAN wide area network
- IP private Internet protocol
- the packet is passed to the information processing apparatus by performing filter processing according to a predetermined reception filter rule and performing reverse conversion of address conversion.
- the receive filter rule that determines the possibility of receiving a packet from the WAN side is only from the address that sent the packet from that port. Addresses that only receive packets There is a sensitive 'filter, a port' sensitive filter that only receives packets from the port that sent the packet from that port, and a filter that does not exist!
- a time for performing such address conversion is set. Specifically, after a certain period of address translation is performed between the WAN side and the LAN side and the power has passed for a predetermined period, the address translation for the received packet is not performed. In other words, new address translation is performed on the packet received from the LAN side. That is, the packet from the WAN side is not received by the information processing device, and the information processing device cannot be accessed from the external device such as a mobile phone via the server device.
- the predetermined period is referred to as a port maintenance time. Therefore, in order to maintain the port of the communication processing device so that the external device power information processing device such as a mobile phone can be accessed via the server device, that is, the packet from the WAN side is the communication processing device. In order to be transmitted to the information processing device via the packet, the packet is transmitted repeatedly.
- the predetermined process in the server is, for example, a process for determining whether or not the IP address on the WAN side of the communication processing device has changed.
- the IP address on the WAN side of the communication processing device may be changed every predetermined period depending on the setting of the connection provider.
- the server device if the server device is informed of the address change, the server device cannot transmit information to the information processing device via the communication processing device.
- the information processing device cannot be accessed from the external device via the server device. Therefore, the packet is repeatedly transmitted so that the server apparatus can perform processing such as knowing a change in the address of the communication processing apparatus.
- the present invention provides a packet processing apparatus capable of reducing a packet processing burden on a server apparatus in a system including an information processing apparatus that repeatedly transmits a packet and a server apparatus that receives the packet.
- a communication system including the same, and a packet processing method are provided.
- the receiving unit that receives the packet, and whether the packet received by the receiving unit is a repetitive packet that is a packet that is repeatedly transmitted to the server device with respect to the information processing device.
- a packet determining unit that determines whether the packet is determined to be a repetitive packet by the packet determining unit, a packet that is determined not to be a repetitive packet by the packet determining unit, and a transmission
- a transmission unit that transmits a packet that is determined to be transmitted by the determination unit, and that does not transmit a packet that is determined not to be transmitted by the transmission determination unit.
- the transmission determining unit may determine that a predetermined percentage of repetitive packets are not transmitted among repetitive packets. According to this, a predetermined percentage of repetitive packets will not reach the server device, and the proportion of repetitive packets reaching the server device can be reliably reduced, and the processing load on the server device can be reliably reduced. it can. On the other hand, since repetitive packets other than a predetermined ratio of repetitive packets are transmitted to the server device, the server device can also perform processing using the repetitive packets.
- the transmission determination unit may determine that the repetitive packet satisfying a predetermined condition is not transmitted to the server device among the repetitive packets. With such a configuration, it is possible to prevent a repetitive packet that satisfies a predetermined condition from reaching the server device. By appropriately setting the predetermined condition, the repeated packet to be received by the server device may be transmitted to the server device and may not be received by the server device. It can also be made so that it is not sent to.
- the repetitive packet includes first address information that is information related to a source address set in a header of the repetitive packet, and a payload of the repetitive packet by the information processing device. And the second address information that is information related to the address set in the transmission packet, and the transmission determination unit matches the first packet information and the second address information included in the second packet. May be determined not to be transmitted to the server device.
- the first address information included in the repetitive packet may be set by a transmission processing device having an address conversion function via the repetitive packet. According to this, for example, when the address of the communication processing device held by the information processing device has been changed, the repetitive packet is transmitted to the server device. Otherwise, the repetitive packet is transmitted to the server device. It can be done without sending to.
- a communication system of the present invention is a communication system including the above-described packet processing device and a switch device that extracts only packets transmitted to a server device from packets communicated on a communication line,
- the receiving unit of the packet processing device receives the packet extracted by the switch device.
- FIG. 1 is a diagram showing a configuration of a communication system including a packet processing device according to a first embodiment of the present invention.
- FIG. 2 is a flowchart showing the operation of the packet processing apparatus in the embodiment.
- FIG. 3 is a diagram showing an example of a configuration of a repetitive packet processed by the packet processing device in the embodiment.
- FIG. 4 is a diagram showing an example of reception count information in the packet processing device in the embodiment.
- FIG. 5 is another diagram showing an example of the configuration of a repetitive packet processed by the packet processing device in the embodiment.
- FIG. 6 shows an example of the configuration of a repetitive packet processed by the packet processing apparatus in the embodiment. It is another figure which shows an example.
- FIG. 7 is a diagram showing a configuration of a communication system including a packet processing device in a second embodiment of the present invention.
- a communication system including a packet processing apparatus according to a first embodiment of the present invention will be described with reference to the drawings.
- FIG. 1 is a diagram illustrating a configuration of a communication system including a packet processing device according to the present embodiment.
- the communication system includes an information processing device 1, a communication processing device 2, a packet processing device 3, and a server device 4.
- the communication processing device 2, the packet processing device 3, and the server device 4 are connected by wired or wireless communication lines 100 and 200.
- the communication lines 100 and 200 are, for example, the Internet, an intranet, and a public telephone line network.
- the packet processing device 3 exists in one of the relay nodes in the communication lines 100 and 200 between the communication processing device 2 and the server device 4.
- the information processing apparatus 1 is, for example, a computer, a microwave oven, a telephone set, a printer, Equipment, refrigerators, washing machines, air conditioners, televisions, video recorders, set-top boxes, etc.
- the information processing apparatus 1 repeatedly transmits the repeated packet.
- the repetitive packet is a packet that the information processing apparatus 1 repeatedly transmits.
- “Repeatedly send” means to send repeatedly and repeatedly, and the transmission cycle may be constant, for example, every 5 minutes, or, for example, 4 to 20 minutes It may be indefinite, such as changing between.
- the cycle for transmitting repetitive packets is normally set shorter than the port maintenance time of communication processing device 2.
- the payload of this repetitive packet may or may not contain any information.
- the repetitive packet is, for example, a packet of a user “datagram protocol” (hereinafter referred to as “UDP”) or a transmission control protocol (hereinafter referred to as “TCP”).
- UDP user “datagram protocol”
- TCP transmission control protocol
- the communication processing device 2 performs processing related to communication between the information processing device 1, the server device 4, and the like.
- the communication processing device 2 may have the function of a transmission processing device having a NAT function for performing address translation, or may be a device having a packet filtering firewall function, or its The apparatus which has both may be sufficient.
- packet filtering is, for example, selection of received packets based on reception filter rules.
- the reception filter rules include, for example, an address “sensitive” filter, a port “sensitive” filter, and a no-one filter as described above. Even when the communication processing device 2 is a device having only a firewall function, it is assumed that the port maintenance time is set in the communication processing device 2 in the same manner as described above.
- the packet processing device 3 includes a reception unit 31, a packet determination unit 32, a transmission determination unit 33, a transmission unit 34, a program execution unit 37, and a recording medium 38.
- the packet processing device 3 will be described only when the packet processing device 3 processes a packet transmitted to the communication line 200 side as well as the communication line 100 side. Do the process of sending the sent packet to the communication line 100 side.
- the program execution unit 37 and the recording medium 38 will be described later.
- the receiving unit 31 receives a packet transmitted from the communication line 100 side.
- the packet is For example, it is a packet transmitted from the information processing device 1 via the communication processing device 2.
- the receiving unit 31 may or may not include a receiving device for receiving, for example, a modem or a network card. When the receiving unit 31 does not include a receiving device, a receiving device (not shown) exists between the receiving unit 31 and the communication line 100.
- the receiving unit 31 may be realized by hardware or may be realized by software such as a driver that drives the receiving device.
- the packet determination unit 32 determines whether the packet received by the reception unit 31 is a repetitive packet that is a packet that is repeatedly transmitted from the information processing device 1 to the server device 4. For example, if the repetitive packet includes information indicating that the packet is a repetitive packet, the packet determination unit 32 uses the information to determine whether the packet is a repetitive packet. May be. Further, for example, when information on the source address of the repetitive packet and information on the destination address are determined, the packet determination unit 32 repeats the packet based on the address included in the packet header. You may decide whether it is a packet.
- the address-related information may be, for example, an IP address or a port number or both.
- the packet determination unit 32 determines whether the port number of the destination of the packet is the port number of the destination of the repetitive packet. It is also possible to determine whether or not the packet is a repetitive packet based on the determination result. For example, when the format of the repetitive packet is determined, the packet determination unit 32 may determine whether the packet is a repetitive packet based on the packet format.
- the packet format is, for example, a packet size or a packet protocol such as UDP or TCP.
- the packet determination unit 32 may determine by combining them. For example, when the protocol of the repetitive packet, the destination port number, and the size are determined, the packet determining unit 32 may determine that the packet satisfying all the conditions is a repetitive packet. . Further, the determination method by the packet determination unit 32 is not limited to these, and it is a matter of course!
- the packet determining unit 32 may determine that the packet is a repetitive packet. May be determined not to be a repetitive packet, or both. If the packet judgment unit 32 determines whether the packet received by the reception unit 31 is a repetitive packet based on the result of the judgment by the packet judgment unit 32, what is the result of the judgment by the packet judgment unit 32? May be.
- the transmission determining unit 33 determines whether or not to transmit the packet determined by the packet determining unit 32 to be a repetitive packet. Specifically, the determination may be made as follows. Needless to say, the judgment method is not limited to the following explanation. Further, the transmission determining unit 33 may determine whether to transmit the repetitive packet to the server apparatus 4 or may determine not to transmit the repetitive packet to the server apparatus 4, or may determine both. Good. If the result of the judgment by the transmission judgment unit 33 indicates whether the repetitive packet is to be transmitted or not, what kind of result is the judgment by the transmission judgment unit 33?
- the transmission determining unit 33 may determine not to transmit a predetermined percentage of repetitive packets among repetitive packets, for example. Specifically, the transmission determining unit 33 or other component power included in the packet processing device 3 Information regarding the source address of the repetitive packet, information regarding the destination address, and the number of times the repetitive packet has been received. If the number of receptions is a predetermined value, for example, if the value of the first digit of the number of receptions is ⁇ 1 '', it is determined that a repetitive packet is to be transmitted. You may decide not to send repetitive packets.
- the random number generator generates a value between 0 and 9 every time a repeated packet is received, and the value generated by the random number generator is a predetermined value. In some cases, for example, when the value S generated by the random number generator is S “l”, the transmission determination unit 33 determines to transmit a repetitive packet. Otherwise, the transmission determination unit 33 does not transmit the repetitive packet. You may judge.
- the transmission determining unit 33 may determine not to transmit a repetitive packet that satisfies a predetermined condition among repetitive packets. Specifically, in the information processing apparatus 1, a flag indicating that transmission is unnecessary is set for some repetitive packets, and the transmission determination unit 33 transmits based on the flag included in the repetitive packet. It may be determined whether or not. For example, When “1” is set in the flag indicating that transmission is not required, the transmission determination unit 33 determines that transmission is not performed, and when “0” is set in the flag, it determines that transmission is performed. May be.
- a count value corresponding to the number of times the repetitive packet is transmitted is set in the repetitive packet, and the transmission determining unit 33 sets the count value included in the repetitive packet to a predetermined value. In some cases, for example, when the value of the first digit of the count value is “1”, it may be determined that a repetitive packet is transmitted. If the communication processing device 2 has the function of a transmission processing device having an address conversion function (NAT function), the address and port number of the repetitive packet transmission source are the communication line 100 side of the communication processing device 2. This is the address and port number.
- NAT function address conversion function
- the information processing apparatus 1 sets information related to the address on the communication line 100 side of the communication processing apparatus 2 in the payload of the repeated packet and transmits the information.
- the repetitive packet received by the receiving unit 31 includes first address information that is information on an address set by the communication processing device 2 having an address change through the repetitive packet, and 2nd address information which is the information regarding the address set by the information processing apparatus 1 is included.
- the first address information is set in the header of the repeated packet, and the second address information is set in the payload of the repeated packet.
- the address information may be an IP address or a port number, for example, and may be both.
- the transmission determining unit 33 determines that the repetitive packet is transmitted to the server device 4 when the first address information and the second address information included in the repetitive packet do not match. You may decide not to send.
- the server device 4 detects this and relates to the address on the communication line 100 side of the communication processing device 2 held by the information processing device 1. Processing for changing information can be performed on the information processing apparatus 1.
- Transmitting unit 34 transmits a packet that is determined not to be a repetitive packet by packet determining unit 32. Further, the transmission unit 34 transmits a packet that has been determined to be a repetitive packet by the packet determination unit 32 and has been determined to be transmitted by the transmission determination unit 33. The transmission unit 34 does not transmit a packet that is determined to be a repetitive packet by the packet determination unit 32 and is determined not to be transmitted by the transmission determination unit 33.
- the transmission unit 34 transmits a packet
- the packet received by the reception unit 31 is transmitted as it is without rewriting the header.
- the transmission unit 34 may transmit the packet as described above. Therefore, for example, a packet that is determined not to be transmitted by the transmission determination unit 33 among the packets received by the reception unit 31 is not passed to the transmission unit 34, and thus may not be transmitted as a result.
- the transmission unit 34 may or may not include a transmission device for performing transmission, such as a modem or a network card.
- a transmission device (not shown) exists between the transmission unit 34 and the communication line 200.
- the transmitting unit 34 may be realized by hardware or software such as a driver that drives the transmitting device.
- the server device 4 receives a packet transmitted from the information processing device 1 or the like.
- the server apparatus 4 may perform predetermined processing on the repetitive packet.
- the predetermined process is, for example, the following process.
- Server device 4 determines whether or not the information on the address registered in advance matches the information on the source address of the received repetitive packet.
- the information processing device 1 may change the information about the address held by the server device 4 based on the information about the source address of the repetitive packet.
- the server device 4 may send an instruction to execute processing for changing the address information, or the information processing device 1 may include a packet including information on the address of the source of the repetitive packet in the payload. You can send it to. In this way, any processing performed in the server device 4 may be performed.
- FIG. 2 is a flowchart showing the operation of the packet processing device according to this embodiment.
- the receiving unit 31 determines whether or not the packet has been received (step S101). If a packet is received (Y in step S101), the process proceeds to step S102. If not (N in step S101), the process in step S101 is repeated until a packet is received.
- the packet determining unit 32 determines whether the packet received by the receiving unit 31 is a repetitive packet (step S102). If it is a repetitive packet (Y in step S102), the process proceeds to step S103. If not (i.e., step S102), the process proceeds to step S104.
- the transmission determining unit 33 determines whether to transmit a repetitive packet (step S 103).
- step S103 When transmitting (step S103, step S103), the process proceeds to step S104.
- step S103 When not transmitting (step S103, step S103), the process returns to step S101.
- the transmission unit 34 transmits a packet that is not a repetitive packet or a repetitive packet that the transmission determination unit 33 determines to transmit (step S104). Then, the process returns to step S101.
- the process ends when the power is turned off or the process is terminated.
- the packet processing device 3 in the present embodiment will be described using a specific example.
- the packet processing device 3 is a so-called router.
- the addresses of the devices are as follows.
- Information processing apparatus 1 192. 168. 0. 11
- Communication processing device 2 (information processing device 1 side): 192. 168. 0. 1
- Communication processor 2 (communication line 100 side): 155. 32. 10. 10
- Packet processing device 3 (communication line 100 side): 202. 132. 10. 6
- Packet processing device 3 (communication line 200 side): 202. 198. 105. 10
- the packet determination unit 32 determines whether the packet is a repetitive packet based on the packet type identification information that is information for identifying the type of packet included in the repetitive packet. .
- the transmission determination unit 33 compares the transmission source address, port number, and transmission destination address of the repetitive packet with the first digit of the number of times the repetitive packet is received. If there is information on the number of times of reception, which is the information to be attached, and the first digit of the number of times of reception is s “i”, it is determined that a repetitive packet is to be transmitted. It shall be judged.
- FIG. 3 is a diagram illustrating an example of a configuration of a repetitive packet processed by the packet processing device according to the present embodiment.
- the packet type identification information included in the repetitive packet includes that the packet type is a repetitive packet.
- the repetitive packet is address-converted by the communication processing device 2 and received by the receiving unit 31 of the packet processing device 3 (step S101).
- the packet determination unit 32 refers to the packet type identification information included in the payload of the repetitive packet, and determines that the packet type identification information is a repetitive packet because the packet type identification information indicates that the packet type is a repetitive packet (step S 102).
- FIG. 4 is a diagram illustrating an example of reception count information in the packet processing device according to the present embodiment.
- the transmission judgment unit 33 acquires the source address, port number, destination address, and port number of the header of the repetitive packet, and increments the corresponding reception count “10” by 1 to “11”. To do. Further, since the number of receptions after the increment is “11”, the transmission determining unit 33 determines to transmit the repetitive packet, and passes that fact to the transmitting unit 34 (step S 103).
- Transmitting section 34 transmits the repetitive packet received by receiving section 31 (step S104).
- the packet is received by the server device 4.
- the subsequent processing in the server device 4 is optional as described above.
- the transmission determination unit 33 determines not to transmit the repetitive packet, and passes that fact to the transmission unit 34 (step S 103).
- the repetitive packet received by the receiving unit 31 is not transmitted.
- the packet determining unit 32 determines that the packet is not a repetitive packet (step S102) and is transmitted from the transmitting unit 34. (Step S104).
- the packet determination unit 32 determines the type of packet included in the repeated packet. Based on the packet type identification information that is information for identifying the packet, it is determined whether the packet is a repetitive packet. In Specific Example 2, it is assumed that the communication processing device 2 has an address conversion function. In addition, the information processing apparatus 1 sets the address and port number on the communication line 100 side of the communication processing apparatus 2 held by the information processing apparatus 1 in the payload of the repetitive packet and transmits it.
- the transmission determination unit 33 also sets the address and port number set by the information processing device 1 in the payload of the repeated packet, and the source address and port number set by the communication processing device 2 in the header of the repeated packet. If the two match, it is determined that the repetitive packet is not transmitted, and if they do not match, it is determined that the repetitive packet is transmitted.
- FIG. 5 is another diagram showing an example of the configuration of a repetitive packet processed by the packet processing apparatus in the present embodiment.
- SA is a source address, which is a source address
- SP is a source port
- DA is , Destination Address, Destination Address
- D PJ is Destination Port, Destination Port Number, Destination Port Number.
- the transmission determining unit 33 reads the source address “155. 32.10.10” and the source port number “12345” set by the communication processing device 2 as the header power of the repeated packet. Further, the transmission determination unit 33 reads the source address “155. 32. 10. 10” and the source port number “12345” set by the information processing device 1 from the payload of the repeated packet. . As a result of comparison between the two, the transmission judgment unit 33 responds because the two match. It is determined not to send a return packet (step S103). As a result, the repetitive packet is not transmitted to the server device 4 and is discarded by the packet processing device 3.
- a connection provider that provides an address on the communication line 100 side of the communication processing device 2 changes the address on the communication line 100 side of the communication processing device 2 to "155. 32. 10. 20". To do. If the repetitive packet is transmitted when the address on the communication line 100 side of the communication processing device 2 is not yet updated, the repetitive packet received by the receiving unit 31 is stored in the information processing device 1! Is as shown in FIG. FIG. 6 is another diagram showing an example of the configuration of a repetitive packet processed by the bucket processing apparatus in the present embodiment.
- the packet determination unit 32 determines that the packet is a repetitive packet (step S102). Similar to the above description, the transmission determining unit 33 reads the source address “155. 32. 10. 20” and the source port number “11111” set by the communication processing device 2 for the header power of the repetitive packet. . Further, the transmission judgment unit 33 reads the source address “155. 32.10.10” and the source port number “12345” set by the information processing device 1 from the payload of the repetitive packet.
- the transmission determining unit 33 determines to transmit the repetitive packet, and passes that fact to the transmitting unit 34 (step S103). Then, the transmission unit 34 transmits the repetitive packet received by the reception unit 31 (Step S104). The repeated packet is received by the server apparatus 4 via the communication line 200. What is the processing after receiving it?
- the server device 4 notifies the information processing device 1 of the changed address and port number on the communication line 100 side of the communication processing device 2, and the address based on the changed address. An instruction to execute the registration process is notified. As a result, the information processing apparatus 1 performs the process of registering the changed address and port number for the server apparatus 4 and at the same time the communication line 100 of the communication processing apparatus 2 held by the information processing apparatus 1. Processing to change the address and port number on the side to a new one may be performed.
- communication processing device 2 may not have an address conversion function.
- the transmission determination unit 33 of the packet processing device 3 sets the first address information that is information related to the source address set in the header of the repeated packet and the payload of the repeated packet. If the second address information does not match, it may be determined that the repetitive packet is transmitted to the server device 4, and if they match, it may be determined that the repetitive packet is not transmitted to the server device 4.
- the first address information set in the header of the repetitive packet is set in the payload of the repetitive packet, which may be set by the communication device of the information processing apparatus 1, for example.
- the set second address information may be set by an application of the information processing apparatus 1, for example.
- an application or the like that exists in the user space of the information processing apparatus 1 can directly connect to an address provider or a port number that exists in the powerful space of the information processing apparatus 1 without being referred to. It can be determined whether or not the address of the information processing apparatus 1 set by, for example, has been changed.
- the packet processing device 3 when the received packet is a repetitive packet, some of the repetitive packets are not transmitted to the server device 4 in some repetitive manners. By not transmitting a packet, the number of repetitive packets received by the server device 4 can be reduced. As a result, the processing load on the server device 4 can be reduced. In particular, in the server device 4, for example, when processing is performed with a large burden such as comparing whether the address of the source of the repetitive packet matches the address registered in the server device 4. The effect of reducing the processing burden is remarkable.
- a predetermined ratio of repetitive packets is transmitted to server device 4;
- the server device 4 can notify the information processing device 1 that the address or port number on the communication line 100 side of the communication processing device 2 has been changed. sell.
- the repetitive packet that requires processing in the server device 4 is transmitted to the server device 4 and the server device The processing burden in 4 can be reduced.
- the repetitive packet transmitted from the information processing apparatus 1 passes through the communication processing apparatus 2. Therefore, when the information processing device 1 transmits the repetitive packet at an interval shorter than the port maintenance time of the communication processing device 2, the information processing device 1 transmits the packet transmitted from the server device 4 to the communication processing device. Will be able to receive at any time via 2.
- the communication system according to the second embodiment of the present invention includes a switch device 5 and a packet processing device 3, and only the packets that are determined to be transmitted to the server device 4 by the switch device 5 in the packet processing device 3. It is determined whether transmission is possible.
- FIG. 7 is a diagram showing a configuration of a communication system including a packet processing device according to the second embodiment of the present invention.
- the communication system in the present example is the same as that of the first embodiment except that a switch device 5 is newly provided, and the description thereof is omitted.
- Switch device 5 extracts only packets transmitted to server device 4 from packets communicated on communication line 100. Then, the packet extracted by the switch device 5 is transferred to the packet processing device 3 and received by the receiving unit 31 of the packet processing device 3.
- the switch device 5 is, for example, a so-called network layer 3 switch, and the address of the server device 4 is set.
- the packet matches the address of the server device 4 Is passed to the packet processing device 3, and if they do not match, the packet is communicated as it is.
- the switch device 5 is installed, for example, between so-called routers in a communication line such as the Internet.
- the packet passed from the switch device 5 to the packet processing device 3 is subjected to the same processing as in the first embodiment, and is a repetitive packet, and a packet that is determined not to be transmitted is not transmitted.
- the other packets are transmitted from the packet processing device 3 to the communication line 200.
- the operation of the packet processing device 3 is the same as that of the first embodiment, and the description thereof is omitted.
- the packet transmitted to the server device 4 is extracted using the switch device 5, and the packet processing device 3 processes the packet.
- the processing load on the packet processing device 3 is reduced. be able to.
- the processing load on the switch device 5 is smaller than the processing load on the packet processing device 3, and the overall processing load can be reduced.
- the packet processing device 3 may be a so-called router that has an address, or a so-called bridge device that does not have an address. There may be.
- the position of the packet processing device 3 is not limited as long as the packet processing device 3 exists in any relay node in the communication line between the communication processing device 2 and the server device 4. For example, when the packet processing device 3 exists in a relay node close to the information processing device 1, it is possible to reduce the traffic of the entire communication line by reducing the number of repetitive packet transmissions.
- a plurality of packet processing devices 3 may be arranged on the communication line as in each region.
- the packet processing device 3 may be connected to the server device 4 which may exist in a relay node close to the server device 4. That the packet processing device 3 is connected to the server device 4 means that all packets transmitted to the server device 4 pass through the packet processing device 3. Therefore, when the packet processing device 3 is connected to the server device 4, no packet is transmitted to the server device 4 without passing through the packet processing device 3, and the server device 4 is effectively Can be reduced.
- the method for the information processing apparatus 1 to acquire the address or the like is as follows. It doesn't matter.
- the information processing apparatus 1 may receive a predetermined server apparatus transmitted address or the like, or may use a function such as universal plug and play (hereinafter referred to as UPn P) or the like. You can get the address from 2.
- the information processing device 1 may perform communication via two or more communication processing devices.
- the communication protocol in each of the above embodiments may be, for example, IP version 4 (hereinafter referred to as v4) or IP version 6 (hereinafter referred to as v6).
- each process or each function is a single device or a single system. It may be realized by centralized processing by a system, or may be realized by distributed processing by a plurality of devices or a plurality of systems.
- each component may be configured by dedicated hardware, or the component that can be realized by software is realized by executing a program. Also good.
- the software program recorded on the recording medium 38 such as a hard disk or a semiconductor memory is read and executed by a program execution unit 37 such as a central processing unit (hereinafter referred to as a CPU) to execute each program. Elements can be realized.
- the software that realizes the packet processing device in each of the above embodiments is the following program.
- a packet determination step to determine, a transmission determination step to determine whether to transmit a packet determined to be a repetitive packet in the packet determination step, a packet determined to be not a repetitive packet in the packet determination step, and a transmission determination A packet that is determined to be transmitted in the step is transmitted, and a transmission step that does not transmit a packet that is determined not to be transmitted in the transmission determination step is executed.
- processing that is performed only by hardware, for example, a modem or an interface card in the transmission step. At least the processing to be performed is not included.
- This program may be executed by being downloaded by a server or the like, for example, by reading a program recorded on a predetermined recording medium such as an optical disk such as a CD-ROM, a magnetic disk, or a semiconductor memory. May be executed.
- a predetermined recording medium such as an optical disk such as a CD-ROM, a magnetic disk, or a semiconductor memory. May be executed.
- there may be one or more computers that execute this program. That is, centralized processing or distributed processing may be performed.
- the packet processing device, the communication system including the packet processing device, and the packet processing method according to the present invention reduce the number of repetitive packets that are repeatedly transmitted to the server device. Therefore, it is possible to reduce the processing load on the server device, which is useful in a system including an information processing device that repeatedly transmits a packet and a server device that receives the packet.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060713370 EP1883187A1 (en) | 2005-05-17 | 2006-02-09 | Packet processing device, communication system, packet processing method, and program executing the method |
US11/911,422 US20090073877A1 (en) | 2005-05-17 | 2006-02-09 | Packet processing apparatus, communication system, packet processing method and program that executes this method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005143739A JP2006324737A (ja) | 2005-05-17 | 2005-05-17 | 通信システム、パケット処理装置、及びパケット処理方法 |
JP2005-143739 | 2005-05-17 |
Publications (1)
Publication Number | Publication Date |
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WO2006123456A1 true WO2006123456A1 (ja) | 2006-11-23 |
Family
ID=37431039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/302227 WO2006123456A1 (ja) | 2005-05-17 | 2006-02-09 | パケット処理装置、通信システム、パケット処理方法、および当該方法を実行させるプログラム |
Country Status (5)
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US (1) | US20090073877A1 (ja) |
EP (1) | EP1883187A1 (ja) |
JP (1) | JP2006324737A (ja) |
CN (1) | CN101160867A (ja) |
WO (1) | WO2006123456A1 (ja) |
Families Citing this family (4)
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JP2009088934A (ja) * | 2007-09-28 | 2009-04-23 | Saxa Inc | 無線lanアクセスポイントおよびプログラム |
JP4623177B2 (ja) * | 2008-09-17 | 2011-02-02 | 富士ゼロックス株式会社 | 情報処理システム |
JP2011211618A (ja) * | 2010-03-30 | 2011-10-20 | Sony Corp | 送信装置、送信方法およびプログラム |
US9276841B2 (en) * | 2014-01-31 | 2016-03-01 | Edgecast Networks, Inc. | Adapting network control messaging for anycast reliant platforms |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000261469A (ja) * | 1999-03-10 | 2000-09-22 | Toshiba Corp | 同報伝送方式 |
JP2001197119A (ja) * | 2000-01-13 | 2001-07-19 | Nec Corp | サーバ装置、ネットワークシステム、及びその受信負荷制御方法 |
JP2002359635A (ja) * | 2001-05-30 | 2002-12-13 | Mitsubishi Electric Corp | アクセス網中継装置 |
JP2003110479A (ja) * | 2002-06-10 | 2003-04-11 | Jisedai Joho Hoso System Kenkyusho:Kk | 中継装置および中継方法 |
WO2004030292A1 (ja) * | 2002-09-30 | 2004-04-08 | Matsushita Electric Industrial Co., Ltd. | 情報処理装置および受信装置 |
JP2004342041A (ja) * | 2003-05-19 | 2004-12-02 | Fujitsu Ltd | トラフィック削減装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6144658A (en) * | 1996-12-20 | 2000-11-07 | Cisco Technology, Inc. | Repetitive pattern removal in a voice channel of a communication network |
US5978951A (en) * | 1997-09-11 | 1999-11-02 | 3Com Corporation | High speed cache management unit for use in a bridge/router |
JP2003204345A (ja) * | 2002-01-08 | 2003-07-18 | Nec Corp | 通信システム、パケット中継装置、パケット中継方法、及び中継プログラム |
JP2006033275A (ja) * | 2004-07-14 | 2006-02-02 | Fujitsu Ltd | ループフレーム検知装置およびループフレーム検知方法 |
US7680104B2 (en) * | 2004-11-09 | 2010-03-16 | Cisco Technology, Inc. | Address tagging for network address translation (NAT) traversal |
-
2005
- 2005-05-17 JP JP2005143739A patent/JP2006324737A/ja not_active Withdrawn
-
2006
- 2006-02-09 CN CNA2006800125871A patent/CN101160867A/zh active Pending
- 2006-02-09 WO PCT/JP2006/302227 patent/WO2006123456A1/ja not_active Application Discontinuation
- 2006-02-09 EP EP20060713370 patent/EP1883187A1/en not_active Withdrawn
- 2006-02-09 US US11/911,422 patent/US20090073877A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000261469A (ja) * | 1999-03-10 | 2000-09-22 | Toshiba Corp | 同報伝送方式 |
JP2001197119A (ja) * | 2000-01-13 | 2001-07-19 | Nec Corp | サーバ装置、ネットワークシステム、及びその受信負荷制御方法 |
JP2002359635A (ja) * | 2001-05-30 | 2002-12-13 | Mitsubishi Electric Corp | アクセス網中継装置 |
JP2003110479A (ja) * | 2002-06-10 | 2003-04-11 | Jisedai Joho Hoso System Kenkyusho:Kk | 中継装置および中継方法 |
WO2004030292A1 (ja) * | 2002-09-30 | 2004-04-08 | Matsushita Electric Industrial Co., Ltd. | 情報処理装置および受信装置 |
JP2004342041A (ja) * | 2003-05-19 | 2004-12-02 | Fujitsu Ltd | トラフィック削減装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1883187A1 (en) | 2008-01-30 |
JP2006324737A (ja) | 2006-11-30 |
CN101160867A (zh) | 2008-04-09 |
US20090073877A1 (en) | 2009-03-19 |
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