1262008 九、發明說明： 【發明所屬之技術領域】 本發明涉及數據通訊網路，尤苴涉及丨一 播數據封包處理方法。 八 又換设備及其組 【先前技術】 網路srtfr廣泛使用，局域網越來越普及的同時電腦和 • (st ^斤進? °在網際網路上，多媒體業務諸如·攻媒 傳送的重要域部分，_流量將會增加 息 ，播大量數據的設備也在不斷發展。點對===路 ，器必須為每-個接收者提供一個相同早内= 呀網路上也重複地傳輸相同的内容報文，佔用 ， 這種情況下基於組播技術的數據傳輸將會越來越普及的貝源’在 -種習知支援_傳輸的LAN如第—圖所示。1 =和1002 ’根據IP地址來轉發組播數據；通訊控制單^ ‘ 02和1103，根據MAC地址來交換數據封包的輸入 器聰作為多埠收發器；主機蘭儒分別勺作輸為=出，集線 了主於習知組播技術之主機加入組播群組圖，其揭露 了钱成為、、且播群組成貝的過程。第三圖係基於習知 二，组播群組圖，其揭露了主機離開組播群組的過程。支 圖人弟^圖之路由器1〇01和主機顧、13〇5與第—圖 和丨路由器讀週期發出隊列訊息來詢問主機聰 ，告訴組播路由器麵其想成為組播群組中的^員。:如 果此日顿有其他主機向組齡由器_發送加 器1001將最先接收到報文的相應主機加入組播群組文，、且播路由 其次，如果主機1305想要離開組播路由器1〇〇1，並 讎開報文至IP地址224. 〇. 〇. 2，_路由器腿接❹^報文 1262008 群;:狀群組隊列至組播群組地址，來檢查其他路由器 基於硬it技術:有早一物理終端地址數據封包的轉換要 包报難區要傳輸的多媒體數據封 ίΐ據ΐί ’所以組播數據封包將會傳送到所有埠。由ίΐ多产 :，持输據流和大量數翻是移細像，這導致通訊控^ 大的侷限性’即數據處理速率變慢長， 也影響到單-傳播數據封包的傳送。 長而且 為了解決上述問題，故需要一種組播戒量控 ΐ發==趣_，鮮奴、準物 路群目ί在於提供一種交換設備，其使用了網際網 M & 理協墩監聽模組（IGMP Snooping，internet Γ S_Ping)來控制域數_傳播，並可 阻基不需要之訊息，以減少網路流量。 1 方法本二的在於提供—種交換設備_數據封包處理 據與父換設備相連主機之需求從網路上獲取組播數 康亚可阻基不需要之訊息，以減少網路流量。 達成ΐ述之發明目的，本發明提供的交換設備包括有一網 心..罔路群組管理協議監聽模組、一路由器硬體抽象層（灯_狀匕，1262008 IX. Description of the Invention: [Technical Field] The present invention relates to a data communication network, and more particularly to a method for processing packet data packets. Eight and another equipment and its group [previous technology] Network srtfr is widely used, the LAN is becoming more and more popular at the same time computer and • (St ^ Jin Jin? ° on the Internet, multimedia services such as · important areas of the transmission of the media In part, _ traffic will increase interest rates, and devices that broadcast large amounts of data are constantly evolving. Point ====, the device must provide the same early for each recipient = ah, the same content is repeatedly transmitted on the network. Packets, occupied, in this case, data transmission based on multicast technology will become more and more popular. The source of the 'in the case of the conventional support_transport LAN as shown in the figure. 1 = and 1002 'based on IP Address to forward multicast data; communication control list ^ ' 02 and 1103, according to the MAC address to exchange data packets of the input device Cong as a multi-turn transceiver; host Lan Ru respectively to lose to = output, the line is mainly in the custom The host of the multicast technology joins the multicast group map, which exposes the process of money becoming and broadcasting groups. The third picture is based on the conventional two, multicast group diagram, which exposes the host leaving the multicast. The process of the group. 1〇01 and the host Gu, 13〇5 and the first graph and the router read cycle send a queue message to ask the host Cong, tell the multicast router that it wants to be a member of the multicast group.: If this day has The other host adds the corresponding host that first received the packet to the multicast group message to the group age router_sender adder 1001, and broadcasts the route second, if the host 1305 wants to leave the multicast router 1〇〇1, and Open the message to IP address 224. 〇. 〇. 2, _ router leg ❹ ^ message 1262008 group;: group group queue to multicast group address, to check other routers based on hard IT technology: one early The conversion of the physical terminal address data packet is required to report the multimedia data to be transmitted in the difficult area. Therefore, the multicast data packet will be transmitted to all ports. By ΐ ΐ ΐ : , : : : : : : : : : : : : : : : : : The fine image, which leads to the limitation of the communication control, that is, the data processing rate becomes slower and longer, and also affects the transmission of the single-propagation data packet. In order to solve the above problem, a multicast quantity control burst is required. =趣趣_,鲜奴,准物路群目For a switching device, it uses the Internet M & MSDN Snooping (internet Γ S_Ping) to control the number of domains _ propagation, and can block unwanted messages to reduce network traffic. The second method is to provide a kind of switching device _ data packet processing according to the needs of the host connected to the parent device to obtain the information that the multicast number does not need to be obtained from the network to reduce the network traffic. According to the object of the present invention, the switching device provided by the present invention includes a network core: a network group management protocol monitoring module, and a router hardware abstraction layer (lights,
Hard齋e Abstractlon Layer)模組及一數據封包發送模 、:且二、、.罔際網路群組管理協議監聽模組用於接收從主機或路由哭笋 =來的IGMP加人或離開數據封包’ i且轉發組播資料數據封: 路由器硬體抽象層模組用於根據接收到的IGMp加入數據封 =播資料數據封包轉寄表格。數據封包發送模組用於暫存從主 機或者是路由器發送給網際網路群組管理協議監聽模組的㈣加 入或離開數據封包。 1262008 如下發明所提供的交換設備組播數據封包處 理方法，其包括有 否°了=2)接收了網路數據封包；（11)判斷該數據封包是 斷ί ί「ΜΡ ί!!封包’ 111 ) f該數據封包是IGMP輯封包，判 據封包是否屬於指統址顧數據群組；㈤當該 加Ιίίίί不屬定地址範隨據群組，判斷其是否是· 2數^包；⑺當該IGMP數據封包是·加人數據封包， ^ 入數據封包；（Vi)當該1GMP數據封包不是腿 據封包’麟其是轉_ _數猶包；（vii)當該 IGMP數據封包不{腿離開數據封包，則發送至各 【實施方式】 參閱第四圖，係為本發較換設備模關。在本發明之實施 1式中1^交換設備包括有—網際網路群組管職議監聽模組 咋々行介面402、一 Web介面403、一設置管理器404、一 器4〇5、一週期服務管理器概、一路由器硬體抽象層 CRT—HAL，Router Hardware Abstracti〇n Layer)模组術、一 數據封包發送模組408及一交換機驅動器4〇卜本實施方式中， 換設備係一交換機。 網際網路群組管理協議監聽模組4〇1用於接收從主機（圖中 未畫出）或路由器發送來的IGMP加入或離開數據封包（IGMp jommg or leaving packet)，根據該訊息來確定主機是否存在 組播群組中，抑或離開組播群組，並且可以控制組播訊息流的傳 輸和其傳輸的有效性。前述之；[GMP數據封包只是控制數據封包， 只有當IGMP完成組播發送的路徑之後，組播資料數據封包才能到 達正確的位置。IGMP數據封包先寄存在與網際網路群組管理協議 監聽模組401直接相連的數據封包發送模組4〇8内，由數據封包 發送模組408送至網際網路群組管理協議監聽模組4〇1中。當主 機想要成為組播群組成員時，它會向網際網路群组營理協續於舯 模組4〇1⑨送-個加入數據封包，請求加入組;群；里以忒 路群組管理協議監聽模組4〇1接收到這個加入數據封包後，經判 1262008 糾映射和益 送-個隊列訊息至所有主機，模組也會定期發 播群組，想要成為組播群組成員的否有主機要加入至組 據封包，告知網際網路群組管一個1GMP加入數 際網路群組管理協議監聽模組4〇1 侧其想加入，網 封包的交換機琿添加至轉寄表格中，亥1GMP加入數據 換機埠與主機埠之間的對應，戶;:$表格記錄的是交 管理協議監聽模組·可以_^^^===組 對於交換設備連接的路由器發逆的童 L相應的主機。 IGMP I® Ϊί 動態變化’網際網路群組管理協議監聽模 官理協議監聽模組衝的事件f理器4Q5 :=比r前的埠映射和現在彻成二 ;皇』,、:射之間2比較，從埠映射中刪除不屬於現在VLAN成員的 阜，亚、知路由器硬體抽象層模組4〇 墟收加人數顯包，如料停止触任何加入數據封 i，=際網路群'ϊ官理協議監聽模'组4〇1將從埠映射中移除此 ’、，：，知路由器硬體抽象層模组407將此璋從轉寄表格中移 要移除不屬於此時VLAN之璋，此項功能由連接在網際 士路f、、且了理協議監聽模組401上的週期服務管理器4〇6來完 μ路由器硬體抽象層模組407與數據封包發送模組棚通過交 動器409相連接。與網際網路群組管理協議監聽模組4〇1 』、、接的^令行介面402和Web介面403控制其運作，並且獲得 二運作狀怨。網際網路群組管理協議監聽模組4〇1將其設置數據 存儲在與其連接的設置管理器4〇4中。 、 1262008 口芩閱第五圖，係為本發明之交換設備處理組播數據封包之流 耘圖。首先’數據封包發送模組4〇8從網路上獲取各種數據封包。 在步驟S501 ’網際網路群組管理協議監聽模組4〇1判斷接收到的 數據封包疋否疋IGMP數據封包^如果不是，則忽略。如果是I· ，據封包’财步驟S5G2巾，網際網輯組管職議監聽模組 οι·判斷此數據封包是否屬於224·〇 〇·χ (IANA (比忧爪的Hardai e Abstractlon Layer) module and a data packet sending module, and: Second, the network group management protocol listening module is used to receive IGMP adding or leaving data from the host or routing crying Packet 'i and forward multicast data block: The router hardware abstraction layer module is used to join the data block/cast data packet forwarding table according to the received IGMp. The data packet sending module is used for temporarily storing (4) adding or leaving data packets sent from the host or the router to the Internet Group Management Protocol listening module. 1262008 The method for processing a multicast data packet of a switching device provided by the following invention includes: (2) receiving a network data packet; (11) determining that the data packet is broken ί ΜΡ ί ί ί ί ί f) The data packet is an IGMP packet, and whether the packet belongs to the referral site data group; (5) when the tagged address is not determined by the group, it is judged whether it is a packet or not; (7) The IGMP data packet is a data packet, and the data packet is encapsulated; (Vi) when the 1GMP data packet is not a leg packet, the lining is a _ _ number of packets; (vii) when the IGMP data packet is not {legs After leaving the data packet, it is sent to each [Embodiment] Referring to the fourth figure, it is a mode change device for the present invention. In the implementation method of the present invention, the 1^ switching device includes the network community management. The monitoring module execution interface 402, a web interface 403, a setting manager 404, a device 4〇5, a periodic service manager, a router hardware abstraction layer CRT-HAL, Router Hardware Abstracti〇n Layer) Module, a data packet sending module 408 and a delivery In this embodiment, the switching device is a switch. The Internet Group Management Protocol listening module 4〇1 is used to receive IGMP joins or leaves sent from a host (not shown) or a router. The data packet (IGMp jommg or leaving packet), according to the message to determine whether the host exists in the multicast group, or leave the multicast group, and can control the transmission of the multicast message stream and the validity of its transmission. [The GMP data packet is only used to control the data packet. Only after IGMP completes the multicast transmission path, the multicast data packet can reach the correct location. The IGMP data packet is first registered directly with the Internet Group Management Protocol listening module 401. The connected data packet sending module 4〇8 is sent by the data packet sending module 408 to the Internet group management protocol listening module 4〇1. When the host wants to be a member of the multicast group, it will To the Internet Group Management Coordination, the 舯 Module 4〇19 is sent to join the data packet, request to join the group; the group; the 群组路群管理协议 listening module 4〇1 received After joining the data packet, after 1262008 arbitrage mapping and benefit-sending queue messages to all hosts, the module will also broadcast the group periodically. If you want to be a member of the multicast group, there is a host to join the group packet. Inform the Internet community that a 1GMP joins the Inter-Network Group Management Protocol listening module on the 4〇1 side and wants to join it. The network packet is added to the forwarding form, and the 1GMP joins the data exchange. The correspondence between the host and the user; the $table record is the management protocol listening module. The _^^^=== group is the host corresponding to the child L of the router connected to the switching device. IGMP I® Ϊί Dynamic Change 'Internet Group Management Protocol Monitor Mode Protocol Protocol Module rushing event 4 processor 4Q5 := 埠 mapping before r and now is two; Huang 』,,: Shooting In the comparison between the two, the 不 mapping does not belong to the current VLAN member 阜, Ya, know the router hardware abstraction layer module 4 〇 收 收 收 收 收 收 收 收 收 收 收 收 收 收 收 收The group 'ϊ官理协议听模' group 4〇1 will remove this ',,:, know that the router hardware abstraction layer module 407 removes this 璋 from the forwarding table to be removed. After the VLAN, this function is completed by the periodic service manager 4〇6 connected to the network protocol f, and the protocol monitoring module 401. The router hardware abstraction layer module 407 and the data packet transmission mode are completed. The booths are connected by a transfer 409. The Internet Group Management Protocol Listening Module 4〇1, the Connected Interface 402 and the Web Interface 403 control its operation and obtain two operational complaints. The Internet Group Management Protocol listening module 4〇1 stores its setting data in the setting manager 4〇4 connected thereto. 1262008 refers to the fifth figure, which is a flow diagram of the processing of the multicast data packet by the switching device of the present invention. First, the data packet transmission module 4〇8 obtains various data packets from the network. In step S501', the Internet Group Management Protocol listening module 4〇1 determines whether the received data packet is an IGMP data packet. If not, it is ignored. If it is I·, according to the package, the S5G2 towel, the Internet network management group monitor module οι·determine whether this data packet belongs to 224·〇 〇·χ (IANA (than the worries)
Assigned Numbers Authority，網際網路地址指派機構）指定的 用於路由協議的地址範圍，其範圍是224· Q· Q· Q到224· Q· ◦· 群組。如果屬於224·0· 〇·χ群組，則將接收到的數據封包傳輸至 ^同VLAN巾所有埠。如果不屬於224·。·。』群組，則在步驟細 中，網際網路群組管理協議監聽模、组4〇1判斷此數據封包 IGMP加入數據封包。如果是IGMp加入數據封包，在步驟難中， 輯封包。如絲是1GMP加人雜封包，則在 二、i際鱗群組管理協議監聽模組401判斷此數據封 包疋否疋IGMP離開數據封包。如果是，則忽略。如果不是，則在 =驟S505中，網際網路群組管理協議監聽模組4〇1認為該數 匕係一不明確之數據封包，故將此數據封包傳送至相同VLAn中 有埠。 &。參閱第六圖，係為本發明交換設備處理IGMp加入數據封包之 抓私圖首先，網際網路群組管理協議監聽模組4〇1接收一 igmp 。妹㈣G1，檢查此猜加人賴封包組播申且 疋古存在。如果不存在，則在步驟邠〇2建立網際網路群袓 ==1=在步驟漏，向树射添加接賤驗加入 ίΐΐΐιί添加此蜂。如果上述組播群組存在，則在步驟 S605桉查接收该丨GMp加入數據封包交換機埠是否在埠映射中。如 刪和S6Q4。如果是，則在步驟_， 綜上所述，本發明符合發明專利要件，爰依法提出專利申請。 10 1262008 惟，以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之 人士，在爰依本案發明精神所作之等效修飾或變化，皆應包含於 以下之申請專利範圍内。 【圖式簡單說明】 第一圖係一種習知支援組播傳輸的LAN結構圖。 第二圖係基於習知組播技術之主機加入組播群組圖。 第三圖係基於習知組播技術之主機離開組播群組圖。 第四圖係本發明交換設備模組圖。 第五圖係本發明交換設備處理組播數據封包之流程圖。 第六圖係本發明交換設備接收IGMP加入數據封包流程圖。 【主要元件符號說明】 網際網路群組管理協議監聽模組 401 命令行介面 402Assigned Numbers Authority, the address range specified by the Internet Protocol Assignment Authority for routing protocols, in the range 224· Q· Q· Q·224· Q· ◦· Group. If it belongs to the 224·0· 〇·χ group, the received data packet is transmitted to the same VLAN. If it does not belong to 224·. ·. In the step, the Internet Group Management Protocol listening mode and group 4〇1 determine that the data packet IGMP joins the data packet. If IGMp joins the data packet, it is difficult to process the packet. If the silk is a 1GMP add-on packet, then the second and the i-scale group management protocol monitoring module 401 determines whether the data packet is IGMP leaving the data packet. If yes, ignore it. If not, then in step S505, the Internet Group Management Protocol listening module 4〇1 considers the number to be an ambiguous data packet, so the data packet is transmitted to the same VLAn. &. Referring to the sixth figure, the switching device of the present invention processes the IGMp to join the data packet. First, the Internet Group Management Protocol listening module 4〇1 receives an igmp. Sister (4) G1, check this guess and add people to the packet and apply for it. If it does not exist, then create an internet group in step 袓2 ==1=In the step of the leak, add a connection to the tree shot and add ίΐΐΐιί to add this bee. If the above multicast group exists, it is checked in step S605 whether the 丨GMp join data packet switch is received or not. For example, delete and S6Q4. If yes, then in step _, in summary, the invention meets the requirements of the invention patent, and the patent application is filed according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art to the present invention are included in the following claims. [Simple Description of the Drawings] The first figure is a LAN structure diagram of a conventional support for multicast transmission. The second figure is based on the host of the conventional multicast technology to join the multicast group map. The third figure is based on the host of the conventional multicast technology leaving the multicast group map. The fourth figure is a block diagram of the switching device of the present invention. The fifth figure is a flow chart of processing the multicast data packet by the switching device of the present invention. The sixth figure is a flow chart of receiving the IGMP join data packet by the switching device of the present invention. [Main component symbol description] Internet Group Management Protocol Listening Module 401 Command Line Interface 402
Web介面 403 設置管理器 404 事件管理器 405 週期服務管理器 406 路由器硬體抽象層模組 407 數據封包發送模組 408 交換機驅動器 409Web Interface 403 Settings Manager 404 Event Manager 405 Periodic Service Manager 406 Router Hardware Abstraction Layer Module 407 Data Packet Sending Module 408 Switch Driver 409