CN114124867A - Group-sending instant message transmission method under two-layer and three-layer hybrid network structure - Google Patents
Group-sending instant message transmission method under two-layer and three-layer hybrid network structure Download PDFInfo
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- CN114124867A CN114124867A CN202111372110.7A CN202111372110A CN114124867A CN 114124867 A CN114124867 A CN 114124867A CN 202111372110 A CN202111372110 A CN 202111372110A CN 114124867 A CN114124867 A CN 114124867A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
Abstract
The invention discloses a group sending instant message transmission method under a two-layer and three-layer mixed network structure, which relates to the technical field of communication.A group sending instant message is firstly sent to a central server by a message sending host, and the central server pushes a received group sending instant message data packet to a central switch of a two-layer sub-network domain where each target host is located; the central switch of the two-layer sub-network domain which receives the group instant message data packet sends the group instant message to all the hosts in the sub-network domain in a mode of two-layer Ethernet broadcast frame; and finally, the host computer which receives the broadcast frame of the mass instant message obtains the mass instant message by analyzing the broadcast frame. The invention reduces the forwarding times of the central server and greatly reduces the bandwidth and performance pressure of the central server.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a group instant message transmission method under a two-layer and three-layer hybrid network structure.
Background
In some large enterprises or organizations, which often include work areas scattered in multiple geographic locations (e.g., across cities and areas), in order to implement network connection in each work area, a two-layer and three-layer hybrid network structure is usually adopted, specifically, the interior of each work area is connected through a two-layer ethernet network, and the areas are connected through a three-layer IP routing network.
The traditional instant messaging method is to use a central server with a cross-region, and all hosts in all regions establish network connection pipelines (generally, a long connection method) with the central server.
When sending a unicast message, for example, a host a1 in zone a needs to send a unicast message to host B1 in zone B, the message is first sent from the a1 host to the central server, and then the central server transmits the message to host B1 in zone B according to the destination address of the message.
For the mass-sending message, for example, the host a1 in the area a needs to send a message to all hosts in the entire area, and the message is first sent from the a1 host to the central server, and then the central server sends the message to each destination host one by one according to the destination address of the message (all hosts in the entire network).
Disclosure of Invention
In view of this, the present invention provides a method for transmitting mass-sending instant messages in a two-layer and three-layer hybrid network structure, which performs optimized transmission on the mass-sending instant messages in the two-layer and three-layer hybrid network structure to reduce bandwidth and performance pressure of a central server.
Therefore, the invention provides the following technical scheme:
the invention provides a group sending instant message transmission method under a two-layer and three-layer mixed network structure, wherein the two-layer and three-layer mixed network structure comprises the following steps: two-layer sub-network domains used for internal network connection of each working area, wherein each two-layer sub-network domain comprises a central switch and a plurality of hosts; three-layer IP routing network for network connection between working areas; a central server which can be directly accessed by all the hosts in the working area is arranged in the network; the method is applied to the central server and comprises the following steps:
when a data packet with a group instant message identifier is received, analyzing the data packet, and taking out an MAC address of a target host; the data packet is sent to the central server by a message sending host, and the data packet at least comprises a group sending instant message identifier and a target host list to which the group sending instant message needs to be sent;
according to the MAC address information of the target host, counting the two-layer subnet domain information of each target host and the IP address of the central switch corresponding to each subnet domain from the mapping relation table locally stored by the central server;
repackaging the received data packet according to the transmission mode of the two-layer subnet broadcast frame of the two-layer subnet domain where each destination host is located;
the repackaged data packet is pushed to a central switch of a two-layer subnet domain where each target host is located, so that the central switch of the two-layer subnet domain receiving the data packet broadcasts the group-sending instant message to all the hosts in the subnet domain; the host computer receiving the broadcast frame of the group instant message analyzes whether the host computer exists in the receiving target host computer list of the broadcast frame, if so, the message body content in the broadcast frame is analyzed.
Further, before receiving the data packet with the mass instant message identifier, the method further includes:
a network connection is initially established.
Further, initially establishing a network connection, comprising:
all the hosts in each working area establish network connection with the central server and ensure that all the hosts in each working area are stably connected with the central server through the network;
each host registers the MAC address of the host and the IP address of the central switch of the two-layer sub-network domain to the central server;
the central server stores the mapping relation table of the MAC address of each host and the IP address of the central switch of the two-layer subnet domain.
Further, all hosts are installed with client software capable of receiving mass instant messages, and the client software is used for receiving mass instant message broadcast frames of the two-layer sub-network domain.
Further, still include: if the receiving destination host of the broadcast frame does not have the host in the list, the broadcast frame is discarded.
Further, the method is applied to mass instant messaging inside the bank enterprise.
The invention has the advantages and positive effects that:
in the method for transmitting the group-sending instant message, the group-sending instant message is firstly sent to a central server, and the central server pushes a received group-sending instant message data packet to a central switch of a two-layer sub-network domain where each target host is located; then the central exchanger of the two-layer sub-network domain which receives the group instant message data packet broadcasts the group instant message to all the host computers in the sub-network domain; and finally, the host computer which receives the broadcast frame of the mass instant message obtains the mass instant message by analyzing the broadcast frame. For example, the group-sending instant message is transmitted in m sub-network domains and n hosts of each sub-network domain, and each of the traditional transmission methods needs to be forwarded m times by n times through the central server, so that the number of the transmission methods is reduced to m times of the transmission methods, and the bandwidth and performance pressure of the central server are greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for transmitting a mass-sending instant message in a two-layer/three-layer hybrid network structure according to an embodiment of the present invention;
FIG. 2 is a flow chart of an initial connection establishment procedure in an embodiment of the present invention;
FIG. 3 is a flow chart of a host sending a message to a central server in an embodiment of the present invention;
fig. 4 is a flowchart illustrating a central server forwarding a message to each local host according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an optimized transmission method for mass instant messages under a two-layer and three-layer mixed network structure. Wherein, two three-layer hybrid network structure includes:
the two-layer sub-network domain is used for the internal network connection of each working area, each two-layer sub-network domain comprises a central switch and a plurality of hosts, the central switch establishes network connection with a central server, and the central switch establishes network connection with each host;
and the three-layer IP routing network is used for network connection among the working areas.
The method comprises the steps that a central server which can be directly accessed by all hosts in all areas is arranged in a network, all hosts in the areas are in network connection with the central server, the MAC addresses of the hosts registered by the hosts to the central server and the IP addresses of central switches of subnet areas where the hosts are located are stored, and a mapping relation table of the MAC addresses of the hosts and the IP addresses of the central switches of the subnet areas where the hosts are located is stored in the central server.
The method for transmitting the mass instant message under the network structure is applied to a central server, and specifically comprises the following steps:
when a data packet with a group instant message identifier is received, analyzing the data packet, and taking out an MAC address of a target host; according to the MAC address information of the target host, the two-layer subnet domain information of the target host and the IP address of the central switch corresponding to each subnet domain are counted from the mapping relation table locally stored by the central server; repackaging the received data packet according to the transmission mode of the two-layer subnet broadcast frame of the two-layer subnet domain where each destination host is located; the repackaged data packet is pushed to a central switch of a two-layer subnet domain where each target host is located, so that the central switch of the two-layer subnet domain receiving the data packet broadcasts the group-sending instant message to all the hosts in the subnet domain; the host computer receiving the broadcast frame of the group instant message analyzes whether the host computer exists in the receiving target host computer list of the broadcast frame, if so, the message body content in the broadcast frame is analyzed.
The method provided by the invention is suitable for enterprises or organizations, such as bank enterprises, under the network architecture of the enterprises, the method can store the switch information of all the two-layer sub-network domains in the central server (which is almost impossible in the large-scale range of the Internet), and the central switch of the two-layer sub-network domains can send the mass instant messages to all the hosts in the sub-network domains in a two-layer Ethernet broadcast frame mode, thereby reducing the forwarding times of the central server and greatly reducing the bandwidth and performance pressure of the central server.
For ease of understanding, the method for mass instant messaging provided by the present invention is described in an interactive manner below. Referring to fig. 1, a flowchart of a method for group instant messaging in a two-three layer hybrid network structure according to an embodiment of the present invention is shown, where in an application scenario of group instant messaging (group chat), the method includes:
s101, initially establishing network connection;
it is necessary to establish network connection between all message receiving and sending hosts and a central server, and store the registered MAC addresses of the hosts and the IP addresses of the central switches in the subnet areas in the central server for reading the host addresses during communication.
S102, the message sending host sends the mass instant message data packet to a central server;
the message sending host end can be a host in any region. The data packet at least comprises the identification of the mass instant message and a list of destination hosts to which the mass instant message needs to be delivered.
S103, after receiving a data packet with a group-sending instant message identifier, the central server analyzes a target host list in the data packet, extracts the MAC address of the target host, counts two-layer subnet domain information of the target host and the IP address of a central switch corresponding to each subnet domain from a mapping relation table locally stored by the central server according to the MAC address information of the target host, and repacks the received data packet according to the transmission mode of two-layer subnet broadcast frames of each subnet domain;
s104, the central server pushes the repackaged data packet to a central switch of a two-layer sub-network domain where each target host is located;
s105, the central switch of the two-layer sub-network domain which receives the data packet broadcasts the group-sending instant message to all the hosts in the sub-network domain;
s106, the host receiving the broadcast frame of the mass instant message analyzes whether the host exists in a receiving target host list of the broadcast frame, and if so, the message body content in the broadcast frame is analyzed; if not, discarding the broadcast frame;
all the hosts are provided with corresponding chat client software and can receive the mass instant message broadcast frame of the two-layer sub-network domain.
For ease of understanding, the following description specifically describes the process of initially establishing a network connection. As shown in fig. 2, the process of initially establishing a network connection includes:
s201, firstly, a central server which can be directly accessed by all hosts in all areas needs to be set in a network, and all hosts in the areas establish network connection with the central server and ensure that all hosts in the areas are stably in network connection with the central server;
s202, after network connection is established, each host registers the MAC address of the host and the IP address of a central switch of a subnet area where the host is located to a central server;
s203, the central server stores the mapping relation table of the MAC address of each host and the IP address of the central switch of the subnet where the host is located, so that after the MAC address of the target host is read and taken out in the message transmission process, the two-layer subnet domain information where the target host is located and the IP address of the central switch corresponding to each subnet domain are counted from the mapping relation table locally stored in the central server according to the MAC address information of the target host.
For ease of understanding, the steps of the host sending a message to the central processor are described in detail below. The message sending host sends a mass-sending instant message data packet containing a mass-sending instant message identifier and a mass-sending instant message destination host list to the central server, and the central server obtains relevant transmission information by analyzing the data packet, as shown in fig. 3, the specific flow is as follows:
s301, a message sending host needs to send a group sending instant message to all hosts in the whole area, firstly, a group sending instant message data packet is sent to a central server, and the data packet can have an identification of the group sending instant message and a target host list to which the group sending instant message needs to be sent;
s302, after receiving a data packet with a mass-sending instant message identifier, a central server analyzes a target host list in the data packet and takes out an MAC address of a target host;
s303, according to the MAC address information of the target host, the information of the two-layer sub-network domain where the target host is located and the IP address of the central switch corresponding to each sub-network domain are counted from the mapping relation table locally stored by the central server.
For ease of understanding, the following description specifically describes the steps of the central server forwarding messages to the zone hosts. The central server repackages the parsed group sending instant message data packet according to the transmission mode of the broadcast frame, sends the repackaged data packet to each regional switch, each regional switch broadcasts the received broadcast frame to all hosts in each region, each host parses the broadcast frame through the chat client software after receiving the broadcast frame and judges whether the host exists in the target host list, as shown in fig. 4, the specific flow is as follows:
s401, the central server repackages the received group-sending instant message data packets according to the transmission mode of the two-layer subnet broadcast frame of each subnet domain;
s402, the central server pushes the re-encapsulated group-sending instant message data packet to a central switch of each two-layer sub-network domain;
s403, broadcasting the group instant message to all hosts in the sub-network domain through the central switch;
s404, all the hosts are provided with corresponding chat client software and can receive the mass instant message broadcast frame of the two-layer sub-network domain;
s405, analyzing whether the host exists in a receiving target host list of the broadcast frame, and if so, analyzing the message body content in the broadcast frame; if the receiving destination host does not have the host in the list, the broadcast frame is discarded.
In the method for transmitting the mass-sending instant message, the central server broadcasts and forwards the mass-sending instant message by means of the two-layer sub-network domain. The group sending instant message is firstly sent to a central server, and the central server pushes the received group sending instant message data packet to a central switch of a two-layer sub-network domain where each target host is located; then the central exchanger of the two-layer sub-network domain which receives the group instant message data packet broadcasts the group instant message to all the host computers in the sub-network domain; and finally, the host computer which receives the broadcast frame of the mass instant message obtains the mass instant message by analyzing the broadcast frame. For example, the group instant message is transmitted in m sub-network domains and n hosts of each sub-network domain, and each of the traditional transmission methods needs to be forwarded m times by n times through the central server, so that the number of the transmission methods is reduced to m times of the transmission methods, and the bandwidth and performance pressure of the central server are greatly reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for transmitting group-sending instant messages under a two-layer and three-layer hybrid network structure is characterized in that the two-layer and three-layer hybrid network structure comprises the following steps: two-layer sub-network domains used for internal network connection of each working area, wherein each two-layer sub-network domain comprises a central switch and a plurality of hosts; three-layer IP routing network for network connection between working areas; a central server which can be directly accessed by all the hosts in the working area is arranged in the network; the method is applied to the central server and comprises the following steps:
when a data packet with a group instant message identifier is received, analyzing the data packet, and taking out an MAC address of a target host; the data packet is sent to the central server by a message sending host, and the data packet at least comprises a group sending instant message identifier and a target host list to which the group sending instant message needs to be sent;
according to the MAC address information of the target host, counting the two-layer subnet domain information of each target host and the IP address of the central switch corresponding to each subnet domain from the mapping relation table locally stored by the central server;
repackaging the received data packet according to the transmission mode of the two-layer subnet broadcast frame of the two-layer subnet domain where each destination host is located;
the repackaged data packet is pushed to a central switch of a two-layer subnet domain where each target host is located, so that the central switch of the two-layer subnet domain receiving the data packet broadcasts the group-sending instant message to all the hosts in the subnet domain; the host computer receiving the broadcast frame of the group instant message analyzes whether the host computer exists in the receiving target host computer list of the broadcast frame, if so, the message body content in the broadcast frame is analyzed.
2. The method of claim 1, further comprising, before receiving the packet with the group instant message identifier:
a network connection is initially established.
3. The method of claim 2, wherein the initial establishment of the network connection comprises:
all the hosts in each working area establish network connection with the central server and ensure that all the hosts in each working area are stably connected with the central server through the network;
each host registers the MAC address of the host and the IP address of the central switch of the two-layer sub-network domain to the central server;
the central server stores the mapping relation table of the MAC address of each host and the IP address of the central switch of the two-layer subnet domain.
4. The method as claimed in claim 1, wherein all hosts are installed with client software capable of receiving mass instant messages, and the client software is configured to receive mass instant message broadcast frames of the two-layer sub-network domain.
5. The method of claim 1, further comprising: if the receiving destination host of the broadcast frame does not have the host in the list, the broadcast frame is discarded.
6. The method as claimed in claim 1, wherein the method is applied to group instant messaging within bank enterprises.
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