CN101312400A - Method realizing IGMP interception function on modem device with 4 ethernet interfaces - Google Patents
Method realizing IGMP interception function on modem device with 4 ethernet interfaces Download PDFInfo
- Publication number
- CN101312400A CN101312400A CNA2007100412302A CN200710041230A CN101312400A CN 101312400 A CN101312400 A CN 101312400A CN A2007100412302 A CNA2007100412302 A CN A2007100412302A CN 200710041230 A CN200710041230 A CN 200710041230A CN 101312400 A CN101312400 A CN 101312400A
- Authority
- CN
- China
- Prior art keywords
- message
- forwarding
- igmp
- information
- ethernet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a method for realizing IGMP snooping on a quadri-Ethernet port modem device. The method comprises configuring a control register in a switching module to add redundant information to a retransmitted Ethernet message, wherein the redundant information comprises a receiving port of the message, intercepting and analyzing whether the Ethernet message is an IGMP message or not, if the Ethernet message is the IGMP message, sending the IGMP message by a system to a network drive module which judges the type of the IGMP message, then adding retransmitted information to an IGMP Report message, and deleting retransmitted information to an IGMP Leave message. The IGMP snooping method realized on a quadri-Ethernet port modem device guarantees multicast messages to be retransmitted to an accurate port, thereby effectively avoiding the waste of the bandwidth of exchange chips, reducing the dependency of choosing the exchange chips, increasing the flexibility of selection on the exchange chips for Modem devices factories, and largely reducing the manufacturing cost, simultaneously the working property is stable and reliable, and the application range is relatively wide.
Description
Technical field
The present invention relates to computer network field, particularly technical field of multicast in the network service specifically is meant the last method that realizes IGMP snooping (IGMP Snooping) by software of a kind of four Ethernet interface modem devices (being xDSL MODEM).
Background technology
At present, the television services (Web TV or IPTV) that is carried on the IP network is used more and more universal.The IPTV system by program server, telecommunication center office equipment (Digital Subscriber Line Access Multiplexer, DSLAM), four Ethernet interface modulator-demodulators (xDSLModem) and receiving terminal set-top box device formations such as (STB).
IPTV terminal----set-top box (STB) can send IGMP message control adding or leave certain program when the user is switched program according to Internet Group Management Protocol (IGMPv2), the all corresponding unique multicast group address of each program, corresponding program data stream is to send to STB by the IPTV program server via Modem by the UDP multicast message.Carrier as the IPTV video Data Transmission----four Ethernet interface xDSL Modem have constituted the important ring of IPTV operation system.XDSL Modem equipment is made of DSL master chip and exchange chip, and the DSL chip is generally the system level chip of embedded embedded type CPU, and embedded OS such as Linux, Vxworks etc. all may operate on the DSL chip.Modem provides a plurality of Ethernet interfaces by exchange chip, is used for multiple devices and surfs the Net simultaneously.
Under the normal condition, see also shown in Figure 1ly, exchange chip is transmitted to all ports with multicast message, and this not only wastes a large amount of network bandwidths, reduces offered load, has also caused security breaches.In order effectively to suppress the diffusion of multicast packet in double layer network, introduced IGMP Snooping function, by monitoring the IGMP message that detects process, form the corresponding relation of group membership and port, generate multicast forward table in view of the above, carry out the forwarding of duplicating of multicast.Make the port of only uploading the IGMP message just can receive the multicast message of adding group.
The part exchange chip can provide the support to IGMP Snooping function.Principle is: switch is monitored the IGMP session between main frame and the router.When switch listens to the IGMP Report message that main frame mails to certain group, switch joins the port of main frame in the forwarding list of this group, and is same, and when switch uppick IGMP Leave message, it is just with port deletion from transmit of main frame.When multicast packet, directly transmit accordingly according to multicast forward table, be not to transmit to all of the port, so the bandwidth of having saved switch effectively.
But, provide the exchange chip price of IGMP Snooping function expensive, many low side exchange chips also can't be supported, have limited the flexibility of Modem equipment producer selection exchange chip like this.And the IGMP Snooping function of exchange chip support generally can't directly be revised and transmit.The demand that IPTV program multicast message need be forwarded to fixed port for some application scenario is difficult to satisfy.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of can realize multicast message send to the port of appointment, effectively save the network bandwidth, reduce the method that dependence that Modem equipment selects exchange chip, stable and reliable working performance, the scope of application realize the IGMP snooping function comparatively widely on the four Ethernet interface modem devices.
In order to realize above-mentioned purpose, realize on the four Ethernet interface modem devices of the present invention that the method for IGMP snooping function is as follows:
Realize the method for IGMP snooping function on this four Ethernet interfaces modem device, comprise Switching Module and network-driven module in this modem device, its main feature is that described method may further comprise the steps:
(1) system carries out initialization operation;
(2) system is provided with the control register in the described Switching Module, makes this Switching Module add the redundant information that comprises this message sink mouth for the Ethernet message of transmitting;
(3) system intercepts and captures the Ethernet message, and whether this Ethernet message of analysis and judgement is the IGMP message;
(4) if not, then system carries out non-IGMP message and handles operation, and finishes;
(5) if then system delivers to the network-driven module with this IGMP message;
(6) the network-driven module judges that this IGMP type of message is IGMP Report message or IGMP Leave message;
(7) if IGMP Report message then carries out forwarding information and adds processing;
(8) if IGMP Leave message then carries out the forwarding information deletion and handles;
(9) system carries out IGMP message post-treatment operations.
The redundant information that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device can also comprise " Egress Trailer " additional information or middle " Special Tag " additional information of adding of Ethernet message that the Ethernet message adds later.
The non-IGMP message processing operation that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) judges whether this message is added with redundant information;
(2) if redundant information is arranged, then remove corresponding redundant information;
(3) system delivers to subsequent module with this message and handles.
The forwarding information interpolation processing that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) system sets up this forwarding-table item data structure under the situation of not setting up the forwarding-table item data structure as yet, and each forwarding-table item wherein comprises multicast group address information and forwarding list information;
(2) from this IGMP message, take out corresponding multicast group address and source port information;
(3) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(4), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(5) if there is no, then in this forwarding list, add this source port information, and carry out switch static mac address list item and add the renewal processing; If exist, then directly return;
(6) if this multicast group address does not have the forwarding-table item coupling, then in this forwarding-table item data structure, create new forwarding-table item and will insert corresponding multicast group address information and forwarding list information, carry out switch static mac address list item then and add the renewal processing.
The switch static mac address list item interpolation renewal processing that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(2) interpolation comprises the source MAC of this message and the static mac address list item of described source port information in this mac address forwarding table.
The forwarding information deletion processing that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) from this IGMP message, takes out corresponding multicast group address and source port information;
(2) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(3), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(4) if exist, then from forwarding list, reject source port;
(5) judge that whether this forwarding list at this moment is empty, if be empty, then deletes corresponding forwarding-table item from this forwarding-table item data structure;
(6) carry out switch static mac address table entry deletion and upgrade processing.
The switch static mac address table entry deletion renewal processing that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(2) deletion comprises the source MAC of this message and the static mac address list item of described source port information in this mac address forwarding table.
The IGMP message post-treatment operations that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device may further comprise the steps:
(1) judges whether this message is added with redundant information;
(2) if redundant information is arranged, then remove corresponding redundant information;
(3) system delivers to subsequent module with this message and handles.
The redundant information that removes that realizes the method for IGMP snooping function on this four Ethernet interfaces modem device comprises following steps:
(1) judges that this redundant information is that " Special Tag " additional information of adding in the middle of " Egress Trailer " additional information or the Ethernet message is added in Ethernet message back;
(2) if " Egress Trailer " additional information then removes " Egress Trailer " additional information at end of message;
(3) if " Special Tag " additional information then removes " Special Tag " additional information in the middle of message.
Adopted the method that realizes the IGMP snooping function on the four Ethernet interface modem devices of this invention, because it has realized IGMP Snooping function by software mode, thereby guaranteed that multicast message is forwarded to accurate port, effectively avoided the waste of exchange chip bandwidth, and method of the present invention has also reduced the dependence that exchange chip is selected, increased the flexibility that Modem equipment producer is selected exchange chip, the while stable and reliable working performance, greatly reduce production cost, the scope of application is comparatively extensive.
Description of drawings
Fig. 1 be in the prior art under the normal condition switch to the forwarding schematic diagram of multicast message.
Fig. 2 is a flow chart of realizing the method for IGMP snooping function on the four Ethernet interface modem devices of the present invention.
Fig. 3 is for using the IPTV system architecture schematic diagram of realizing the method for IGMP snooping function on the four Ethernet interface modem devices of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 2ly, realize on this four Ethernet interfaces modem device the method for IGMP snooping function comprising Switching Module and network-driven module in this modem device that its main feature is that described method may further comprise the steps:
(1) system carries out initialization operation;
(2) system is provided with the control register in the described Switching Module, make this Switching Module add the redundant information that comprises this message sink mouth for the Ethernet message of transmitting, this redundant information can also comprise " EgressTrailer " additional information or middle " Special Tag " additional information of adding of Ethernet message that the Ethernet message adds later;
(3) system intercepts and captures the Ethernet message, and whether this Ethernet message of analysis and judgement is the IGMP message;
(4) if not, then system carries out non-IGMP message and handles operation, and finishes; This non-IGMP message is handled operation and be may further comprise the steps:
(a) judge whether this message is added with redundant information;
(b) if redundant information is arranged, then remove corresponding redundant information;
(c) system delivers to subsequent module with this message and handles;
(5) if then system delivers to the network-driven module with this IGMP message;
(6) the network-driven module judges that this IGMP type of message is IGMP Report message or IGMP Leave message;
(7) if IGMP Report message then carries out forwarding information and adds processing, may further comprise the steps:
(a) system sets up this forwarding-table item data structure under the situation of not setting up the forwarding-table item data structure as yet, and each forwarding-table item wherein comprises multicast group address information and forwarding list information;
(b) from this IGMP message, take out corresponding multicast group address and source port information;
(c) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(d), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(e) if there is no, then in this forwarding list, add this source port information, and carry out switch static mac address list item and add the renewal processing; If exist, then directly return; This switch static mac address list item adds the renewal processing and may further comprise the steps:
(i) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(ii) in this mac address forwarding table, add and comprise the source MAC of this message and the static mac address list item of described source port information;
(f) if this multicast group address does not have the forwarding-table item coupling, then in this forwarding-table item data structure, create new forwarding-table item and will insert corresponding multicast group address information and forwarding list information, carry out switch static mac address list item then and add the renewal processing, this processing procedure is identical with said process;
(8) if IGMP Leave message then carries out the forwarding information deletion and handles, may further comprise the steps:
(a) from this IGMP message, take out corresponding multicast group address and source port information;
(b) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(c), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(d) if exist, then from forwarding list, reject source port;
(e) judge that whether this forwarding list at this moment is empty, if be empty, then deletes corresponding forwarding-table item from this forwarding-table item data structure;
(f) carry out switch static mac address table entry deletion and upgrade processing, may further comprise the steps:
(i) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(ii) deletion comprises the source MAC of this message and the static mac address list item of described source port information in this mac address forwarding table;
(9) system carries out IGMP message post-treatment operations, may further comprise the steps:
(a) judge whether this message is added with redundant information;
(b) if redundant information is arranged, then remove corresponding redundant information, may further comprise the steps:
(i) judge that this redundant information is that " Special Tag " additional information of adding in the middle of " Egress Trailer " additional information or the Ethernet message is added in Ethernet message back;
(ii) if " Egress Trailer " additional information then removes " Egress Trailer " additional information at end of message;
(iii) if " Special Tag " additional information then removes " Special Tag " additional information in the middle of message;
(c) system delivers to subsequent module with this message and handles.
In the middle of practical application, basic thought of the present invention is that the method by software has realized IGMP Snooping function on four Ethernet interface modulator-demodulators, its effect is that the restriction multicast message copies to all of the port, realize that it sends to accurate port, therefore provide convenience for saving bandwidth, in addition, realize that by software IGMP Snooping has also reduced the dependence that Modem equipment is selected exchange chip.
Adopt the operating process of method of the present invention as follows:
1, the control register of softward interview exchange chip the inside is provided with exchange chip and adds redundant information for the Ethernet message of transmitting, and must comprise this message sink message breath in the redundant information.
It should be noted that, the mode that different manufacturers exchange chip redundant information is added may be different, have plenty of in all Ethernet message back and add the additional information that is called " Egress Trailer ", the exchange chip that has can be specified at the IGMP message and add " Special Tag " in the middle of message.
2, the operating system that operates on the DSL chip is intercepted and captured the IGMP message, and analyzes and handle.
For non-IGMP message, if exchange chip all adds " Egress Trailer " to all messages, need remove redundant information earlier, transfer to other resume module of operating system again.
Operating system is at first set up and is safeguarded that is transmitted a data structure FDB, and each list item of FDB comprises three members:
● whether Occupied---it is occupied to write down this list item
● MulticastID---be used to write down multicast group address
● PortMap---forwarding list is used to write down this multicast group data message and transmits the purpose network interface
The detailed process process is, each message that the network-driven module monitors receives, if the IGMP message enters following steps:
(1) multicast group address and the source port information in the taking-up message handled respectively according to the type of message then;
(2) if IGMP Report message, whether this multicast group address of search has the list item coupling in FDB.If coupling is arranged, check that source port whether in this list item forwarding list, if do not exist, then adds this port in forwarding list PortMap, upgrade exchange chip static state (fixing) MAC Address list item according to step 3; If in forwarding list, then directly enter step 4;
If this multicast group address does not mate list item in FDB, take out unappropriated list item among the FDB, create new list item and assignment.Upgrade exchange chip static state (fixing) MAC Address list item according to step 3;
(3) if IGMP Leave message, whether this multicast group address of inquiry has the list item coupling in FDB equally.If have, from forwarding list, reject source port, if at this moment forwarding list is empty, then from FDB, delete this list item.Upgrade exchange chip static state (fixing) MAC Address list item according to following steps 3 again.If this multicast group address does not have occurrence in FDB, need not to do any action, directly enter following steps 4.
3, upgrade exchange chip static state (fixing) MAC Address list item.
Exchange chip is operated in data link layer, E-Packets according to MAC Address, and switch is preserved a mac address table, and mac address table has shown the MAC Address of main frame and the mapping relations between the switch ports themselves.When main frame sent a message, switch was received the source MAC of message with inspection, and searched the item that is complementary with it in the mac address table.If no, switch will write down this MAC Address and receive the switch ports themselves of this data message in mac address table, and this process is known as address learning.Switch is also searched coupling with the target MAC (Media Access Control) address and the mac address table of message, and when occurrence, switch will be forwarded to this message the port of this occurrence appointment.The exchange chip support is by writing register access MAC Address list item, can add, modification, remove entries.It is dynamic or static that a MAC Address list item can indicate.Add address table from an address and pick up counting later on, each port does not receive that source address is the message of this MAC Address in ageing time, and so, this list item will be deleted from mac address table.The static mac address list item is not subjected to the address aging time effects.Can specify this address message to forward by adding the static mac address list item, till this list item is deleted from fixed port.
4, the redundant information that exchange chip adds in the deletion IGMP message, and give other modules of operating system with message and continue to handle.At the different redundant information append mode of exchange chip, take diverse ways to remove.If added " Egress trailer " in the IGMP message, at this moment need remove " Egress Trailer " at end of message.For the message that " Special Tag " mode of employing is added, only need in the middle of message, to remove " Special Tag ".
See also shown in Figure 3ly again, wherein STB-B sends certain channel program of IGMP Report message request program request; When IGMP message process exchange chip, can be coupled with redundant information, wherein comprise this message source port numbers 4; After driver module captures the IGMPReport message,, add static (fixing) list item, indicate this multicast group data message and be forwarded to port 4 by the mac address forwarding table of visit exchange chip the inside.Remove the redundant information in the message then, and transfer to other modules of operating system and continue to handle.
When the IPTV program server receives that order request is replied, can send the program multicast message, (DSLAM, DSL Access Multiplexer) is transferred to Modem equipment through Digital Subscriber Line Access Multiplexer; Exchange chip inquires the corresponding port 4 of this multicast message in forwarding list, so it is forwarded to this port 4; Thereby STB-B just can successfully receive the program multicast message.
Adopted the method that realizes the IGMP snooping function on the four above-mentioned Ethernet interface modem devices, because it has realized IGMP Snooping function by software mode, thereby guaranteed that multicast message is forwarded to accurate port, effectively avoided the waste of exchange chip bandwidth, and method of the present invention has also reduced the dependence that exchange chip is selected, increased the flexibility that Modem equipment producer is selected exchange chip, the while stable and reliable working performance, greatly reduce production cost, the scope of application is comparatively extensive.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1, realize the method for IGMP snooping function on a kind of four Ethernet interface modem devices, comprise Switching Module and network-driven module in this modem device, it is characterized in that described method may further comprise the steps:
(1) system carries out initialization operation;
(2) system is provided with the control register in the described Switching Module, makes this Switching Module add the redundant information that comprises this message sink mouth for the Ethernet message of transmitting;
(3) system intercepts and captures the Ethernet message, and whether this Ethernet message of analysis and judgement is the IGMP message;
(4) if not, then system carries out non-IGMP message and handles operation, and finishes;
(5) if then system delivers to the network-driven module with this IGMP message;
(6) the network-driven module judges that this IGMP type of message is IGMP Report message or IGMP Leave message;
(7) if IGMP Report message then carries out forwarding information and adds processing;
(8) if IGMP Leave message then carries out the forwarding information deletion and handles;
(9) system carries out IGMP message post-treatment operations.
2, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 1, it is characterized in that described redundant information also comprises " Egress Trailer " additional information or middle " Special Tag " additional information of adding of Ethernet message that the Ethernet message adds later.
3, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 1 and 2, it is characterized in that described non-IGMP message is handled operation and be may further comprise the steps:
(1) judges whether this message is added with redundant information;
(2) if redundant information is arranged, then remove corresponding redundant information;
(3) system delivers to subsequent module with this message and handles.
4, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 1 and 2, it is characterized in that described forwarding information adds processing and may further comprise the steps:
(1) system sets up this forwarding-table item data structure under the situation of not setting up the forwarding-table item data structure as yet, and each forwarding-table item wherein comprises multicast group address information and forwarding list information;
(2) from this IGMP message, take out corresponding multicast group address and source port information;
(3) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(4), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(5) if there is no, then in this forwarding list, add this source port information, and carry out switch static mac address list item and add the renewal processing; If exist, then directly return;
(6) if this multicast group address does not have the forwarding-table item coupling, then in this forwarding-table item data structure, create new forwarding-table item and will insert corresponding multicast group address information and forwarding list information, carry out switch static mac address list item then and add the renewal processing.
5, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 4, it is characterized in that described switch static mac address list item adds the renewal processing and may further comprise the steps:
(1) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(2) interpolation comprises the source MAC of this message and the static mac address list item of described source port information in this mac address forwarding table.
6, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 1 and 2, it is characterized in that described forwarding information deletion is handled and be may further comprise the steps:
(1) from this IGMP message, takes out corresponding multicast group address and source port information;
(2) in this forwarding-table item data structure, carry out match search according to this multicast group address;
(3), then check in the forwarding list of this forwarding-table item whether have corresponding source port information if this multicast group address has forwarding-table item coupling;
(4) if exist, then from forwarding list, reject source port;
(5) judge that whether this forwarding list at this moment is empty, if be empty, then deletes corresponding forwarding-table item from this forwarding-table item data structure;
(6) carry out switch static mac address table entry deletion and upgrade processing.
7, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 6, it is characterized in that described switch static mac address table entry deletion upgrades to handle and may further comprise the steps:
(1) the network-driven module is by corresponding M AC addresses forwarding table in the Switching Module access switch;
(2) deletion comprises the source MAC of this message and the static mac address list item of described source port information in this mac address forwarding table.
8, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 1 and 2, it is characterized in that described IGMP message post-treatment operations may further comprise the steps:
(1) judges whether this message is added with redundant information;
(2) if redundant information is arranged, then remove corresponding redundant information;
(3) system delivers to subsequent module with this message and handles.
9, realize the method for IGMP snooping function on the four Ethernet interface modem devices according to claim 8, it is characterized in that the described redundant information that removes comprises following steps:
(1) judges that this redundant information is that " Special Tag " additional information of adding in the middle of " Egress Trailer " additional information or the Ethernet message is added in Ethernet message back;
(2) if " Egress Trailer " additional information then removes " Egress Trailer " additional information at end of message;
(3) if " Special Tag " additional information then removes " Special Tag " additional information in the middle of message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100412302A CN101312400B (en) | 2007-05-25 | 2007-05-25 | Method for realizing IGMP interception function on modem device with 4 ethernet interfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100412302A CN101312400B (en) | 2007-05-25 | 2007-05-25 | Method for realizing IGMP interception function on modem device with 4 ethernet interfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101312400A true CN101312400A (en) | 2008-11-26 |
| CN101312400B CN101312400B (en) | 2011-03-30 |
Family
ID=40100832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100412302A Expired - Fee Related CN101312400B (en) | 2007-05-25 | 2007-05-25 | Method for realizing IGMP interception function on modem device with 4 ethernet interfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101312400B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448003B (en) * | 2008-12-23 | 2012-02-01 | 杭州华三通信技术有限公司 | Method and device for processing IGMP message |
| CN102447567A (en) * | 2011-11-16 | 2012-05-09 | 上海大亚科技有限公司 | Ethernet switching equipment and method switching multicast to unicast based on IGMP protocol |
| CN102647359A (en) * | 2012-04-26 | 2012-08-22 | 网经科技（苏州）有限公司 | Method for implementing network bridge IGMP (internet group management protocol) Snooping based on DSA TAG (digital signature algorithm tag) and user-defined protocol stack |
| CN102970152A (en) * | 2012-11-23 | 2013-03-13 | 上海斐讯数据通信技术有限公司 | Method for statically realizing Internet group management protocol (IGMP) Snooping |
| CN105721314A (en) * | 2016-02-05 | 2016-06-29 | 华为技术有限公司 | Method and equipment for sending data packet |
| CN106330645A (en) * | 2015-06-16 | 2017-01-11 | 中兴通讯股份有限公司 | Fast convergence method and device of Ethernet ring network multicast Proxy mode business |
| CN112152943A (en) * | 2020-09-07 | 2020-12-29 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Method and system for controlling executive body based on processor mimicry switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1318628B1 (en) * | 2001-12-10 | 2005-01-12 | Alcatel | Method and apparatus of directing multicast traffic in an Ethernet MAN |
| CN1192574C (en) * | 2002-01-30 | 2005-03-09 | 华为技术有限公司 | Controlled group broadcasting system and its realizing method |
-
2007
- 2007-05-25 CN CN2007100412302A patent/CN101312400B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448003B (en) * | 2008-12-23 | 2012-02-01 | 杭州华三通信技术有限公司 | Method and device for processing IGMP message |
| CN102447567A (en) * | 2011-11-16 | 2012-05-09 | 上海大亚科技有限公司 | Ethernet switching equipment and method switching multicast to unicast based on IGMP protocol |
| CN102647359A (en) * | 2012-04-26 | 2012-08-22 | 网经科技（苏州）有限公司 | Method for implementing network bridge IGMP (internet group management protocol) Snooping based on DSA TAG (digital signature algorithm tag) and user-defined protocol stack |
| CN102647359B (en) * | 2012-04-26 | 2014-10-08 | 网经科技（苏州）有限公司 | Method for implementing network bridge IGMP (internet group management protocol) Snooping based on DSA TAG (digital signature algorithm tag) and user-defined protocol stack |
| CN102970152A (en) * | 2012-11-23 | 2013-03-13 | 上海斐讯数据通信技术有限公司 | Method for statically realizing Internet group management protocol (IGMP) Snooping |
| CN106330645A (en) * | 2015-06-16 | 2017-01-11 | 中兴通讯股份有限公司 | Fast convergence method and device of Ethernet ring network multicast Proxy mode business |
| CN106330645B (en) * | 2015-06-16 | 2020-06-05 | 中兴通讯股份有限公司 | Method and device for fast convergence of Ethernet ring multicast Proxy mode service |
| CN105721314A (en) * | 2016-02-05 | 2016-06-29 | 华为技术有限公司 | Method and equipment for sending data packet |
| CN112152943A (en) * | 2020-09-07 | 2020-12-29 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Method and system for controlling executive body based on processor mimicry switch |
| CN112152943B (en) * | 2020-09-07 | 2022-06-14 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Method and system for controlling executive body based on mimic switch processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101312400B (en) | 2011-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101312400B (en) | Method for realizing IGMP interception function on modem device with 4 ethernet interfaces | |
| CN101409685B (en) | Forwarding method based on virtual LAN mapping and access equipment | |
| EP2356775B1 (en) | Central controller for coordinating multicast message transmissions in distributed virtual network switch environment | |
| US7751394B2 (en) | Multicast packet relay device adapted for virtual router | |
| US8121124B2 (en) | Applying adaptive thresholds to multicast streams within computer networks | |
| US7616634B2 (en) | Gateway device connecting multicast-supported network to multicast-unsupported L2 network | |
| CN100566282C (en) | The Apparatus and method for of control transmitting multicast data | |
| CN200990617Y (en) | Intermediate network equipment | |
| US8010696B2 (en) | Passing information from a forwarding plane to a control plane | |
| CN100417141C (en) | Group broadcasting business realizing method | |
| CN100361470C (en) | Method for realizing multicast by using secondary frame in access for digital subscriber line | |
| CN100407704C (en) | Method of dynamically learning address on MAC layer | |
| CN101136730A (en) | Credible synchronization method of distributed network equipment | |
| US20060274771A1 (en) | Electronic device | |
| US20070242655A1 (en) | Method and apparatus for managing quality of service for multimedia applications | |
| JP5295273B2 (en) | Data stream filtering apparatus and method | |
| CN101877671A (en) | Sending method of mirror image message, switch chip and Ethernet router | |
| US7327730B2 (en) | Data packet transmission method and network switch applying same thereto | |
| CN100492985C (en) | Managing method of network apparatus based on access controlling layer of Ethernet medium | |
| CN100499549C (en) | Apparatus and base station equipment for transmitting IP message in WiMAX network | |
| CN101009669B (en) | A method and system and route device for transmitting the multicast message | |
| CN100359875C (en) | Method for realizing backup and load shared equally based on proxy of address resolution protocol | |
| CN1925468B (en) | Internet set managerial protocol report inhibiting method and communications network system | |
| CN110660205B (en) | Alarm information processing method and device, electronic equipment and readable storage medium | |
| JP2006101259A (en) | Method and system for transmitting data and network repeater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20170525 |