CN113364684B - Information processing method, edge computing platform and storage medium - Google Patents
Information processing method, edge computing platform and storage medium Download PDFInfo
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- CN113364684B CN113364684B CN202110493895.7A CN202110493895A CN113364684B CN 113364684 B CN113364684 B CN 113364684B CN 202110493895 A CN202110493895 A CN 202110493895A CN 113364684 B CN113364684 B CN 113364684B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3009—Header conversion, routing tables or routing tags
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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
Abstract
The embodiment of the application discloses an information processing method, which is applied to a switching node with an IP distribution function in an edge computing platform and comprises the following steps: receiving a first service reply message sent by a first service node; the first service reply message is response information used for responding to the first service request message to provide the target service; analyzing a message Internet Protocol (IP) header of the first service reply message; if the header option of the IP header comprises target identification information, acquiring a first target IP address included in the IP header; determining a target service requested by the first service request message; and updating a message forwarding strategy corresponding to the target service based on the first target IP address. The embodiment of the application also discloses an edge computing platform and a storage medium.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an information processing method, an edge computing platform, and a storage medium.
Background
With the rapid development of communication network technology, edge Computing (Mobile Edge Computing) technology is becoming mature and widely used. In the MEC platform, applications are typically deployed in a service fashion in a platform (kubernets, k8 s) for managing container clusters. The service is stably provided to the outside in an Internet Protocol (IP) manner. Since the service backend can run on any one node in k8s, the service backend is easy to change and unstable, so there is an iptables rule on each node that resolves the virtual IP to direct the service request to the real backend.
When an external user or other internal components of a platform access k8s services through a service request, the external user or other internal components of the platform cannot dynamically sense the real back end of the service, and at present, the service request can only be sent to one node through a shunting strategy, a routing rule, a flow table and the like.
Content of application
In order to solve the above technical problems, embodiments of the present application desirably provide an information processing method, an edge computing platform, and a storage medium, so as to solve the problem that response time for providing a service is long when a service is requested in k8s at present, implement a method for quickly providing a service in k8s, effectively shorten response time for providing a service in k8s, and improve operation efficiency of an application in an MEC platform.
The technical scheme of the application is realized as follows:
in a first aspect, an information processing method is applied to a switching node with an IP offload function in an edge computing platform, and the method includes:
receiving a first service reply message sent by a first service node; wherein, the first service reply message is response information for responding to the first service request message to provide the target service;
analyzing a message Internet Protocol (IP) header of the first service reply message;
if the header option of the IP header comprises target identification information, acquiring a first target IP address included in the IP header;
determining a target service requested by the first service request message;
and updating a message forwarding strategy corresponding to the target service based on the first target IP address.
Optionally, after determining the target service requested by the first service request packet, the method further includes:
determining a source IP address corresponding to the first service request message;
and sending the first service reply message to a first service request node corresponding to the source IP address.
Optionally, after updating the packet forwarding policy corresponding to the target service based on the first target IP address, the method further includes:
receiving a second service request message sent by a second service request node; the second service request message is a message which is generated by the second service request node and is used for requesting the target service;
if the updated message forwarding strategy comprises a first target IP address corresponding to the target service, determining a second service node corresponding to the first target IP address;
sending the second service request message to the second service node; the second service request message is used for requesting the second service node to provide corresponding target service;
receiving a second service reply message sent by the second service node; the second service reply message is response information which is generated by the second service node in response to the second service request message and is used for providing the target service;
and sending the second service reply message to the second service request node.
Optionally, before receiving the first service reply packet sent by the first service node, the method further includes:
receiving a first service request message sent by a first service request node;
if the message forwarding strategy does not comprise the first target IP address, determining the first service node based on a node allocation strategy;
sending the first service request message to the first service node; the first service request packet is used to be forwarded to a second service node providing the target service through the first service node, so that the second service node generates a third service reply packet for providing the target service in response to the first service request packet, where the first service reply packet includes the third service reply packet.
Optionally, the updating the message forwarding policy corresponding to the target service based on the first target IP address includes:
if the switching node is a user plane function node, modifying the distribution strategy corresponding to the target service into the first target IP address; wherein the message forwarding strategy comprises the shunting strategy;
if the switching node is a virtual switch node which has an association relation with the first service request node, creating a flow table which is used for indicating that a destination IP address for providing the target service is the first destination IP address; wherein the packet forwarding policy includes the flow table.
In a second aspect, an information processing method applied to a first service node in an edge computing platform includes:
receiving a third service reply message sent by a second service node corresponding to the first target IP address with the target label; the third service reply message is information of a target service which is generated by the second service node in response to the received first service request message and is used for providing the target service;
acquiring target identification information;
obtaining a fourth service reply message based on the first target IP address and the third service reply message;
setting the target identification information at a header option of the fourth service reply message to obtain a first service reply message;
sending the first service reply message to a switching node; wherein the first service reply message is used for enabling the switching node to update the message forwarding policy corresponding to the target service.
Optionally, before receiving a third service reply packet sent by a second service node corresponding to a first target IP address having a target label, the method further includes:
receiving a first service request message which is sent by the switching node and used for requesting a target service; wherein the first service request message is sent to the switching node by a first service request node for requesting the target service;
if the first service node is determined to be incapable of providing the target service, determining a first target IP address for providing the target service;
and sending the first service request message to a second service node corresponding to the first target IP address.
Optionally, after determining that the first service node cannot provide the target service and determining a first target IP address for providing the target service, the method further includes:
determining a second target IP address corresponding to the first service node;
acquiring a target label;
and based on the target label, performing labeling processing on the communication connection between the first target IP address and the second target IP address.
In a third aspect, an edge computing platform, the edge computing platform comprising at least: the system comprises a first service node, a first service request node, a switching node with an IP distribution function and a second service node; wherein:
the first service request node is configured to generate a first service request packet requesting to obtain a target service, and send the first service request packet to the switching node;
the switching node is configured to implement the steps of the information processing method according to any one of the above embodiments based on the first service request packet;
the first service node is configured to implement the steps of the information processing method according to any one of the above items;
the second service node is used for providing the target service.
In a fourth aspect, a storage medium has stored thereon an information processing program which, when executed by a processor, implements the steps of the information processing method as in any one of the above.
The embodiment of the application provides an information processing method, an edge computing platform and a storage medium, and the method comprises the steps that a first service node receives a third service reply message sent by a second service node corresponding to a first target IP address with a target label, after target identification information is obtained, a fourth service reply message is obtained based on the first target IP address and the third service reply message, the target identification information is set at a header option of the fourth service reply message, after the first service reply message is obtained, the first service reply message is sent to a switching node, then the switching node with an IP shunting function receives the first service reply message sent by the first service node, an IP header of the first service reply message is analyzed, if the header option of the IP header includes the target identification information, the first target IP address included by the IP header is obtained, target service requested by the first service request message is determined, and a message forwarding strategy corresponding to the target service is updated based on the first target IP address. Thus, after receiving a third service reply message sent by a second service node corresponding to a first target IP address with a target label, a first service node adds target identification information and the first target IP address to the third service reply message to obtain the first service reply message, so that a switching node detects the first service reply message after receiving the first service reply message, analyzes the first service reply message to obtain the first target IP address when detecting that the first service reply message includes the target identification information, and updates a message forwarding policy corresponding to the target service based on the first target IP address, so that when receiving the first service request message for requesting the target service next time, the first service request message can be directly forwarded to the first target IP address based on the updated message forwarding policy, the problem that the response duration is long when service is provided in the current k8s is solved, and the implementation method for rapidly providing service in k8s is implemented, thereby effectively shortening the response time for providing service in k8s, and improving the application efficiency of an MEC operating platform.
Drawings
Fig. 1 is a schematic flowchart of an information processing method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of another information processing method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another information processing method according to an embodiment of the present application;
fig. 4 is a schematic flowchart of an information processing method according to another embodiment of the present application;
fig. 5 is a schematic flowchart of another information processing method according to another embodiment of the present application;
fig. 6 is a schematic flowchart of another information processing method according to another embodiment of the present application;
fig. 7 is a schematic diagram of an application scenario provided in an embodiment of the present application;
fig. 8 is a schematic diagram of another application scenario provided in the embodiment of the present application;
fig. 9 is a schematic structural diagram of an IP header according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of an edge computing platform according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
An embodiment of the present application provides an information processing method, which is applied to a switching node with an IP offloading function in an edge computing platform, and is shown in fig. 1, where the method includes the following steps:
The first service reply message is response information for responding to the first service request message to provide the target service.
In the embodiment of the present application, both the switching node and the first service node belong to a k8s node. Applications in the MEC platform are generally deployed in k8s in a service manner, each service provides services to the outside in a virtual IP address manner, and a corresponding service backend runs on any node in k8 s. The switching node is an intermediate data switching node, and is used for connecting the first service node and the node for requesting the target service, and realizing the information transmission process between the two nodes. The first service reply message may be generated by the first service node in response to the first service request message, that is, the first service node is for the target service; the first service reply message may also be sent by the service providing node for providing the target service to the first service node, so as to reply the corresponding first service reply message to the node for requesting the target service through the first service node through the transmission path of the first service request message.
It should be noted that the nodes installed with the service may be configured to run at least one service, that is, each node may run at least one virtual IP address for providing the service.
In this embodiment of the present application, after receiving the first service reply packet, the switching node identifies the IP header content of the first service reply packet.
In this embodiment of the present application, if it is recognized that the header option of the IP header of the first service reply packet does not include the target identification information, the first service reply packet is directly forwarded to the service request node that sends the first service request packet without performing subsequent processing. The first target IP address is a virtual IP address for providing a service corresponding to the first service request packet.
And step 104, determining the target service requested by the first service request message.
In the embodiment of the present application, the switching node determines the target service requested by the first service request packet.
And 105, updating the message forwarding strategy corresponding to the target service based on the first target IP address.
In the embodiment of the application, the switching node updates the message forwarding policy in the switching node based on the first target IP address providing the target service, and the target IP address providing the target service corresponding to the target service in the message forwarding policy is updated to be the first target IP address, so that when a subsequent switching node receives a first service request message for requesting the target service, the switching node directly shunts a source IP address corresponding to the first service request message to the first target IP address.
In the information processing method provided by the embodiment of the present application, a switching node with an IP offload function receives a first service reply packet sent by a first service node, and parses an IP header of the first service reply packet, if a header option of the IP header includes target identification information, obtains a first target IP address included in the IP header, determines a target service requested by a first service request packet, and updates a packet forwarding policy corresponding to the target service based on the first target IP address. Therefore, after receiving the first service reply message, the switching node detects the first service reply message, when detecting that the first service reply message includes the target identification information, the switching node analyzes the first service reply message to obtain a first target IP address, and updates a message forwarding strategy corresponding to the target service based on the first target IP address, so that when receiving a first service request message for requesting the target service next time, the switching node can directly forward the first service request message to the first target IP address based on the updated message forwarding strategy, thereby solving the problem that the response time length is longer when service is provided when the service is requested in k8s at present, realizing the method for quickly providing the service in k8s, effectively shortening the response time length for providing the service in k8s, and improving the operation efficiency of the application in the MEC platform.
Based on the foregoing embodiments, an embodiment of the present application provides an information processing method, as shown in fig. 2, where the method is applied to a first service node in an edge computing platform, and the method includes the following steps:
The third service reply message is information of the target service which is generated by the second service node in response to the received first service request message and is used for providing the target service.
In this embodiment of the application, the target label is obtained by identifying the first target IP address by the first service node, the first service node sends the first service request packet to the second service node corresponding to the first target IP address, and because the first service node cannot provide the target service, the first service node marks the connection between the first service node and the first target IP address by using the target label, so that when receiving a third service reply packet sent by the second service node corresponding to the first target IP address, the third service reply packet is quickly processed.
In this embodiment of the present application, the target identification information may be identification information used to indicate that the corresponding offloading policy needs to be updated according to a target IP address in a message with the target identification information.
In this embodiment of the present application, the first destination IP address and the third service reply packet are processed, for example, the first destination IP address may be packed, or the first destination IP address may be set in the packet content of the third service reply packet, and the fourth service reply packet is obtained.
In this embodiment of the present application, the target identification information is set at the header option of the fourth service reply packet, so that when the switching node receives the first service reply packet, the target identification information can be quickly identified and obtained from the header option.
The first service reply message is used for enabling the switching node to update the message forwarding strategy corresponding to the target service.
In the embodiment of the application, the first service node sends the first service reply message to the switching node, so that the switching node updates a message forwarding policy corresponding to the target service according to the first service reply message, and sends the first service reply message to a service request node for requesting the target service.
The information processing method provided by the embodiment of the application includes the steps that a first service node receives a third service reply message sent by a second service node corresponding to a first target IP address with a target label, after target identification information is obtained, a fourth service reply message is obtained based on the first target IP address and the third service reply message, the target identification information is arranged at a header option of the fourth service reply message, after the first service reply message is obtained, the first service reply message is sent to a switching node, the switching node with an IP shunting function receives the first service reply message sent by the first service node, an IP header of the first service reply message is analyzed, if the header option of the IP header includes the target identification information, a first target IP address included by the IP header is obtained, target service requested by a first service request message is determined, and a message forwarding strategy corresponding to the target service is updated based on the first target IP address. Thus, after receiving a third service reply message sent by a second service node corresponding to a first target IP address with a target label, a first service node adds target identification information and the first target IP address to the third service reply message to obtain the first service reply message, so that a switching node detects the first service reply message after receiving the first service reply message, analyzes the first service reply message to obtain the first target IP address when detecting that the first service reply message includes the target identification information, and updates a message forwarding policy corresponding to the target service based on the first target IP address, so that when receiving the first service request message for requesting the target service next time, the first service request message can be directly forwarded to the first target IP address based on the updated message forwarding policy, the problem that the response duration is long when service is provided in the current k8s is solved, and the implementation method for rapidly providing service in k8s is implemented, thereby effectively shortening the response time for providing service in k8s, and improving the application efficiency of an MEC operating platform.
Based on the foregoing embodiments, an embodiment of the present application provides an information processing method, as shown in fig. 3, the method including the following steps:
step 301, the first service node receives a third service reply packet sent by the second service node corresponding to the first target IP address having the target label.
The third service reply message is information of the target service which is generated by the second service node in response to the received first service request message and is used for providing.
In this embodiment, taking an example that a target tag is a tag that is marked on a connection between a first service node and a second service node corresponding to a first target IP address by using a connmark technology, after receiving a first service request message, a first target IP address running in the second service node and used for providing a target service responds to the first service request message, generating a third service reply message, and sending the third service reply message to the first service node, and after receiving a third service reply message sent by the second service node corresponding to the first target IP address by using the connmark technology tag, the first service node performs subsequent processing on the third service reply message.
Step 302, the first service node obtains the target identification information.
Step 303, the first service node obtains a fourth service reply message based on the first target IP address and the third service reply message.
In this embodiment, the first service node may set the first target IP address in a header option of the third service reply packet, to obtain a fourth service reply packet.
Step 304, the first service node sets the target identification information at the header option of the fourth service reply packet to obtain the first service reply packet.
In this embodiment, the first service node also sets the target identification information in a header option of the fourth service reply packet to obtain the first service reply packet.
Step 305, the first service node sends a first service reply message to the switching node.
The first service reply message is used for enabling the switching node to update the message forwarding strategy corresponding to the target service.
In this embodiment of the application, the first service node sends the first service reply packet to the switching node, so that the switching node forwards the first service reply packet to a request node for requesting a target service, analyzes the received first service reply packet, and determines whether a packet forwarding policy of the corresponding target service needs to be updated according to the first service reply packet.
Step 306, the switching node receives the first service reply message sent by the first service node.
The first service reply message is response information for responding to the first service request message to provide the target service.
Step 307, the switching node parses the packet IP header of the first service reply packet.
In this embodiment of the present application, the switching node processes the IP header content of the received first service reply packet in an analytic manner, so as to identify the IP header content of the first service reply packet.
Step 308, if the header option of the IP header includes the destination identification information, the switching node obtains the first destination IP address included in the IP header.
In this embodiment of the present application, if it is recognized that the header option of the IP header includes the destination identification information, the switching node acquires the first destination IP address from the header option of the IP header.
Step 309, the switching node determines the target service requested by the first service request packet.
Step 310, the switching node updates the message forwarding policy corresponding to the target service based on the first target IP address.
In the embodiment of the application, the switching node updates the destination IP address in the message forwarding policy corresponding to the target service to the first target IP address. Therefore, when a first service request message aiming at the target service and sent by other source IP addresses is received again in the follow-up process, the switching node can directly, effectively and accurately shunt the other source IP addresses to the first target IP address quickly according to the updated message forwarding strategy without forwarding through other service nodes, so that the time delay caused in the message forwarding process is effectively shortened, and the information transmission efficiency is improved.
Step 311, the switching node determines a source IP address corresponding to the first service request packet.
In the embodiment of the present application, the source IP address is an IP address that sends out the first service request packet to request the target service.
Step 312, the switching node sends the first service reply packet to the first service request node corresponding to the source IP address.
In this embodiment of the present application, a first service request node corresponding to a source IP address, that is, the aforementioned service request node for requesting a target service, sends a first service reply packet to the first service request node by an exchange node, so as to implement a service response to the first service request packet sent by the first service request node, so as to provide the target service for the first service request node.
It should be noted that, step 311 and step 309 may be executed simultaneously, or may be executed before step 309, and similarly, step 312 and step 310 may be executed simultaneously, step 312 may also be executed before step 310, and the specific execution sequence between step 310 and step 312 may be determined according to an actual application scenario, which is not limited in any way.
Based on the foregoing embodiments, in other embodiments of the present application, referring to fig. 4, after the switching node performs step 310, the switching node is further configured to perform steps 313 to 317; wherein:
step 313, the switching node receives a second service request packet sent by the second service request node.
The second service request message is a message generated by the second service request node and used for requesting a target service.
In the embodiment of the application, after receiving a relevant access operation of a user for content displayed by a second service request node, the second service request node generates a second service request message based on the relevant access operation, and sends the second service request message to a switching node. The second service request node may be the first service request node, or may be another service request node other than the first service request node.
Step 314, if the updated message forwarding policy includes a first target IP address corresponding to the target service, the switching node determines a second service node corresponding to the first target IP address.
In this embodiment, if the updated packet forwarding policy does not include the first target IP address corresponding to the target service, the switching node may randomly determine a random service node according to the second service request packet, and send the second service request packet to the random service node, and when the random service node cannot provide the second service request packet, determine, based on the second service request packet, the first target IP address capable of providing the target service, and send the second service request packet to the second service node corresponding to the first target IP address, so that the second service node provides the corresponding target service.
Step 315, the switching node sends the second service request message to the second service node.
The second service request message is used for requesting the second service node to provide a corresponding target service.
Step 316, the switching node receives a second service reply packet sent by the second service node.
The second service reply message is response information which is generated by the second service node in response to the second service request message and is used for providing the target service.
Step 317, the switching node sends the second service reply packet to the second service request node.
It should be noted that steps 313 to 317 may be executed after step 312. In some application scenarios, steps 313-317 may also be performed as a stand-alone embodiment.
Based on the foregoing embodiment, in another embodiment of the present application, as shown in fig. 5, before the switching node performs step 306, the switching node is further configured to perform steps 318 to 323:
step 318, the switching node receives the first service request packet sent by the first service request node.
Step 319, if the first destination IP address is not included in the packet forwarding policy, the switching node determines the first service node based on the node allocation policy.
In the embodiment of the application, the node allocation policy may be to randomly determine a service node from service nodes included in the MEC platform to obtain a first service node; or determining a service node currently in an idle state from service nodes included in the MEC platform to obtain a first service node.
Step 320, the switching node sends the first service request message to the first service node.
The first service request message is used for being forwarded to a second service node providing the target service through the first service node, so that the second service node responds to the first service request message to generate a third service reply message for providing the target service, and the first service reply message comprises the third service reply message.
Step 321, the first service node receives a first service request packet for requesting a target service, which is sent by the switching node.
The first service request message is sent to the switching node by a first service request node for requesting a target service.
Step 322, if it is determined that the first service node cannot provide the target service, the first service node determines a first target IP address for providing the target service.
In this embodiment of the application, if the first service node can provide the target service, the first service node responds to the first service request packet, generates a corresponding reference service reply packet, and sends the reference service reply packet to the switching node, so that the switching node sends the service reply packet to the first service request node, that is, does not need to forward the first service request packet. In some application scenarios, if the first service node can provide the target service, the first target IP address for providing the target service may also be determined, then a reference service reply packet is generated in response to the first service request packet, and the first target IP address and the target identification information are set in an IP header option of the reference service reply packet, so that the switching node updates its forwarding packet policy according to the reference service reply packet in which the first target IP address and the target identification information are set.
Step 323, the first service node sends the first service request message to a second service node corresponding to the first target IP address.
Based on the foregoing embodiment, in other embodiments of the present application, referring to fig. 6, after the first service node performs step 301, the first service node is further configured to perform steps 324 to 326; wherein:
in step 324, the first service node determines a second target IP address corresponding to the first service node.
Step 325, the first service node obtains the target label.
Step 326, the first service node performs tagging processing on the communication connection between the first target IP address and the second target IP address based on the target tag.
In this embodiment, the tagging of the communication connection between the first target IP address and the second target IP address by the first service node may be implemented by using a Connmark tag technology.
Based on the foregoing embodiments, in other embodiments of the present application, step 312 may be implemented by step 312a or step 312 b; wherein:
step 312a, if the switching node is a user plane function node, the switching node modifies the offloading policy corresponding to the target service to the first target IP address.
The message forwarding strategy comprises a shunting strategy.
In this embodiment of the present application, when the switching node is a User Plane Function (UPF) node, the offloading policy corresponding to the target service in the UPF node is modified to be the first target IP address.
Step 312b, if the switching node is a virtual switch node having an association relationship with the first service request node, the switching node creates a flow table for indicating that the destination IP address providing the destination service is the first destination IP address.
The message forwarding strategy comprises a flow table.
In this embodiment, when the switching node is a virtual switch node operating in the same network as the second service node, the virtual switch node creates a flow table indicating that a destination IP address providing the target service is the first destination IP address.
Based on the foregoing embodiments, an application scenario in which an external user node generates a first service request packet for requesting a target service is provided in the embodiments of the present application, where a packet forwarding policy of a UPF node does not include a first target IP address corresponding to the target service, as shown in fig. 7, the application scenario includes: an external user node A1, a UPF node A2, a first node A3 and a second node A4; wherein:
step a11, an external user node A1 generates a first service request message for requesting a target service according to the operation of a user, and sends the first service request message to a UPD node A2;
step a12, after receiving a first service request message, the UPF node A2 determines, according to a preset offloading policy, that one node is assumed to be a first node A3 from at least two nodes (only two first nodes and two second nodes for providing services are shown in fig. 7) for providing services in the MEC platform; the UPF node A2 distributes the first service request message to a first node A3;
step a13, after receiving the first service request message, the first node A3 determines, based on the first service request message, a first target IP address capable of providing a target service when determining that the first node itself cannot provide the target service in response to the first service request message, and determines a second node running the first target IP address; the first node A3 adopts Connmark technology to mark Connmark labels on the connection between the own IP address and the first target IP address; the first node A3 forwards the first service request message to a second node corresponding to the first target IP address;
step a14, the second node A4 responds to the first service request message forwarded by the first node, generates a third service reply message, and sends the third service reply message to the first node A3;
step a15, if the first node detects that the third service reply message is sent by the second node with a Connmark label, the first node A3 sets the first target IP address and the target identification information, for example, 0x87, at the header option of the IP header of the third service reply message, so as to obtain the first service reply message; the first node A3 sends the first service reply message to the UPF node A2 through the switch;
a16, detecting an IP head of a received first service reply message by a UPF node A2; if the UPF node A2 detects target identification information, for example, 0x87, from the header option of the IP header of the first service reply packet, acquiring a first target IP address from the header option of the IP header of the first service reply packet; the UPF node A2 modifies a destination IP address used for providing the target service in the shunting strategy into a first destination IP address; meanwhile, the UPF node A2 also sends the first service reply message to the external user node A1 so as to realize the response to the first service request message of the external user node;
step a17, when the UPF node receives a second service request message for requesting a target service, which is sent by another external user node, again, the UPF node directly shunts the IP address of the other external user node to a second node A4 corresponding to the first target IP address according to the updated shunting policy, that is, the second service request message is sent to the second node A4 corresponding to the first target IP address; the second node A4 responds to the second service request message and generates a second service reply message for providing the target service; the second node A4 sends a second service reply message to the UPF node; and the UPF node sends the second service reply message to other external user nodes.
It should be noted that the implementation flows in steps a11 to a16 may refer to the direction of the solid arrow in fig. 7 to indicate the data flow direction; when the data flow process in step a17 is described by taking another external user node as the external user node A1 as an example, the data flow process may be described with reference to the dotted arrow in fig. 7. The external user node is the first service request node, the UPF node is the switching node, the first node is the first service node, and the second node is the second service node. For such an application scenario, roles of the first service node and the second service node may be interchanged.
Based on the foregoing embodiment, an application scenario in which a target service is requested between service nodes inside an MEC platform is further provided in the embodiment of the present application, and it is assumed that there is no flow table of a first IP target address corresponding to a first service request packet in a virtual switch node, as shown in fig. 8, the application scenario includes: a third node B1, a fourth node B2, a fifth node B3, and a virtual switch node B4 operating in the same network as the third node, the fourth node, and the fifth node; wherein:
step B11, assuming that a running Virtual Machine (VM) (not shown) in the third node B1 generates a first service request packet for requesting a target service, and sends the first service request packet to the Virtual switch node B4;
step B12, after receiving the first service request packet, the virtual switch node B4 determines that one node is assumed to be a fourth node B2 from at least two nodes (only two fourth nodes and two fifth nodes for providing services except the third node are shown in fig. 8) included in the MEC platform, where the at least two nodes are except the third node; the virtual switch node B4 distributes the first service request message to a fourth node B2;
step B13, when the fourth node B2 receives the first service request message and determines that it cannot respond to the first service request message to provide the target service, it determines a first target IP address capable of providing the target service based on the first service request message and determines a fifth node running the first target IP address; the fourth node B2 adopts the Connmark technology to print a Connmark label on the connection between the own IP address and the first target IP address; the fourth node B2 forwards the first service request message to a fifth node corresponding to the first target IP address;
step B14, the fifth node B3 responds to the first service request message forwarded by the first node, generates a third service reply message, and sends the third service reply message to the fourth node B2;
step B15, if the fourth node detects that the third service reply message is sent by the fifth node with a Connmark label, the fourth node B2 sets the first target IP address and the target identification information, for example, 0x87, at the header option of the IP header of the third service reply message, so as to obtain the first service reply message; the fourth node B2 sends the first service reply message to a node B4 of the virtual switch through the switch;
step B16, the virtual switch node B4 detects the IP head of the received first service reply message; if the virtual switch node B4 detects target identification information, for example, 0x87, from the header option of the IP header of the first service reply packet, acquiring a first target IP address from the header option of the IP header of the first service reply packet; the virtual switch node B4 generates a flow table including a destination IP address providing a destination service as a first destination IP address; meanwhile, the virtual switch node B4 also sends the first service reply message to the third node B1, so as to implement a response to the first service request message of the external user node;
step B17, if the virtual switch node B4 receives the second service request message for requesting the target service sent by the other node again, directly shunting the IP address sent by the other node to the first target IP address according to the flow table corresponding to the target service, that is, the virtual switch node B4 sends the second service request message to the fifth node B3 according to the flow table; the fifth node B3 responds to the second service request message, generates a second service reply message for providing the target service, and sends the second service reply message to the virtual switch node B4; the virtual switch node B4 sends a second service reply message to the third node B1.
The structure of the IP header may be as shown in fig. 9, and includes: a version bit having a length Of 4 bits, a header length bit having a length Of 4 bits, a Type Of Service (TOS) bit having a length Of 8 bits, a total length (number Of bytes) bit having a length Of 16 bits, an identification bit having a length Of 16 bits, a flag bit having a length Of 3 bits, a slice offset bit having a length Of 13 bits, a Time To Live (TTL) bit having a length Of 8 bits, a protocol bit having a length Of 8 bits, a header checksum bit having a length Of 16 bits, a 32-bit source IP address bit, a 32-bit destination IP address bit, an option bit, and a data bit. The header option of the aforementioned IP header is the option bit in fig. 9.
It should be noted that the implementation flow in steps b11 to b16 can refer to the direction of the solid arrow in fig. 8 to indicate the data flow direction; regarding the data flow process in step B17, taking another node as the third node B1 as an example, the data flow process can be described with reference to the dotted arrow in fig. 8. The third node is the first service request node and the second service request node, the virtual switch node is the switch node, the fourth node is the first service node, and the fifth node is the second service node. In this application scenario, roles of the first service node, the second service node, the first service request node, and the second service request node may be interchanged.
It should be noted that, for the description of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the description in the other embodiments, which is not repeated herein.
The information processing method includes the steps that first, a first service node receives a third service reply message sent by a second service node corresponding to a first target IP address with a target label, after target identification information is obtained, a fourth service reply message is obtained based on the first target IP address and the third service reply message, the target identification information is arranged at a header option of the fourth service reply message, after the first service reply message is obtained, the first service reply message is sent to a switching node, then, the switching node with an IP shunting function receives the first service reply message sent by the first service node, an IP header of the first service reply message is analyzed, if the header option of the IP header includes the target identification information, a first target IP address included by the IP header is obtained, target service requested by a first service request message is determined, and a message forwarding strategy corresponding to the target service is updated based on the first target IP address. Thus, after receiving a third service reply message sent by a second service node corresponding to a first target IP address with a target label, a first service node adds target identification information and the first target IP address to the third service reply message to obtain the first service reply message, so that a switching node detects the first service reply message after receiving the first service reply message, analyzes the first service reply message to obtain the first target IP address when detecting that the first service reply message includes the target identification information, and updates a message forwarding policy corresponding to the target service based on the first target IP address, so that when receiving the first service request message for requesting the target service next time, the first service request message can be directly forwarded to the first target IP address based on the updated message forwarding policy, the problem that the response duration is long when service is provided in the current k8s is solved, and the implementation method for rapidly providing service in k8s is implemented, thereby effectively shortening the response time for providing service in k8s, and improving the application efficiency of an MEC operating platform.
Based on the foregoing embodiments, an embodiment of the present application provides an edge computing platform, where the edge computing platform may be applied to the information processing method provided in the embodiments corresponding to fig. 1 to 6, and as shown in fig. 10, the edge computing platform 4 may at least include: a first service node 41, a first service request node 42, a switching node 43 with IP forking function and a second service node 44, wherein:
the first service request node is used for generating a first service request message requesting to obtain a target service and sending the first service request message to the switching node;
the switching node is used for receiving a first service reply message sent by the first service node; the first service reply message is response information used for responding to the first service request message to provide the target service; analyzing a message Internet Protocol (IP) header of the first service reply message; if the header option of the IP header comprises the target identification information, acquiring a first target IP address included by the IP header; determining a target service requested by the first service request message; updating a message forwarding strategy corresponding to the target service based on the first target IP address;
the first service node is used for receiving a third service reply message sent by a second service node corresponding to a first target IP address with a target label; the third service reply message is information of a target service which is generated by the second service node in response to the received first service request message and is used for providing the target service; acquiring target identification information; obtaining a fourth service reply message based on the first target IP address and the third service reply message; setting target identification information at a header option of the fourth service reply message to obtain a first service reply message; sending a first service reply message to a switching node; the first service reply message is used for enabling the switching node to update a message forwarding strategy corresponding to the target service;
and the second service node is used for providing the target service.
In other embodiments of the present application, after the switching node performs the step of determining the target service requested by the first service request packet, the switching node is further configured to perform the following steps:
determining a source IP address corresponding to the first service request message;
and sending the first service reply message to a first service request node corresponding to the source IP address.
In other embodiments of the present application, the edge computing platform further comprises: the second service request node, correspondingly, after the switching node executes the step of updating the message forwarding policy corresponding to the target service based on the first target IP address, is further configured to execute the following steps:
receiving a second service request message sent by a second service request node; the second service request message is a message which is generated by a second service request node and is used for requesting a target service;
if the updated message forwarding strategy comprises a first target IP address corresponding to the target service, determining a second service node corresponding to the first target IP address;
sending a second service request message to a second service node; the second service request message is used for requesting the second service node to provide corresponding target service;
receiving a second service reply message sent by a second service node; the second service reply message is response information which is generated by the second service node in response to the second service request message and is used for providing the target service;
and sending a second service reply message to the second service request node.
In other embodiments of the present application, before the switching node performs the step of receiving the first service reply packet sent by the first service node, the switching node is further configured to perform the following steps:
receiving a first service request message sent by a first service request node;
if the message forwarding strategy does not comprise the first target IP address, determining a first service node based on a node allocation strategy;
sending a first service request message to a first service node; the first service request message is used for being forwarded to a second service node providing the target service through the first service node, so that the second service node responds to the first service request message to generate a third service reply message for providing the target service, and the first service reply message comprises the third service reply message.
In other embodiments of the present application, the step performed by the switching node based on the first target IP address may be implemented by the following steps when updating a packet forwarding policy corresponding to a target service:
if the switching node is a user plane function node, modifying a distribution strategy corresponding to the target service into a first target IP address; the message forwarding strategy comprises a shunting strategy;
if the switching node is a virtual switch node which has an association relation with the first service request node, establishing a flow table for indicating that a destination IP address for providing the target service is a first target IP address; the message forwarding strategy comprises a flow table.
In other embodiments of the present application, before the step performed by the first service node receives the third service reply packet sent by the second service node corresponding to the first target IP address having the target label, the step is further configured to perform the following steps:
receiving a first service request message which is sent by a switching node and used for requesting a target service; the first service request message is sent to the switching node by a first service request node for requesting a target service;
if the first service node is determined to be incapable of providing the target service, determining a first target IP address for providing the target service;
and sending the first service request message to a second service node corresponding to the first target IP address.
In other embodiments of the present application, if it is determined that the first service node cannot provide the target service, after determining the first target IP address for providing the target service, the first service node further performs the following steps:
determining a second target IP address corresponding to the first service node;
acquiring a target label;
and based on the target label, performing labeling processing on the communication connection between the first target IP address and the second target IP address.
It should be noted that, in this embodiment, a specific implementation process of the step executed by each node may refer to an implementation process in the processing method provided in the embodiments corresponding to fig. 1 to 6, and is not described here again.
An edge computing platform provided in an embodiment of the present application, first, a first service node receives a third service reply packet sent by a second service node corresponding to a first target IP address having a target label, obtains target identification information, and then obtains a fourth service reply packet based on the first target IP address and the third service reply packet, and sets the target identification information at a header option of the fourth service reply packet, and after obtaining the first service reply packet, sends the first service reply packet to a switching node, and then, the switching node having an IP offloading function receives the first service reply packet sent by the first service node, and parses an IP header of the first service reply packet, and if the header option of the IP header includes the target identification information, obtains a first target IP address included in the IP header, determines a target service requested by a first service request packet, and updates a packet forwarding policy corresponding to the target service based on the first target IP address. Thus, after the first service node receives the third service reply message sent by the second service node corresponding to the first target IP address with the target label, the target identification information and the first target IP address are added to the third service reply message to obtain the first service reply message, so that the switching node detects the first service reply message after receiving the first service reply message, when the first service reply message is detected to include the target identification information, the first service reply message is analyzed to obtain the first target IP address, and a message forwarding strategy corresponding to the target service is updated based on the first target IP address, so that when the first service request message for requesting the target service is received next time, the first service request message can be directly forwarded to the first target IP address based on the updated message forwarding strategy, the problem that the response time length is long when the service is requested in the current k8s is solved, the implementation method for rapidly providing the service in the k8s is realized, the response of providing the service in the k8s is effectively shortened, and the application efficiency of the MEC operating platform is improved.
Based on the foregoing embodiments, embodiments of the present application provide a computer-readable storage medium, referred to as a storage medium for short, where one or more programs are stored in the computer-readable storage medium, so as to implement an implementation process in the information processing method provided in the embodiments corresponding to fig. 1 to 6, which is not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (10)
1. An information processing method, the method is applied to a switching node with an IP distribution function in an edge computing platform, and the method comprises the following steps:
receiving a first service reply message sent by a first service node; wherein, the first service reply message is response information for responding to the first service request message to provide the target service;
analyzing a message Internet Protocol (IP) header of the first service reply message;
if the header option of the IP header comprises target identification information, acquiring a first target IP address included in the IP header; the target identification information is identification information used for indicating that the distribution strategy is updated according to a first target IP address;
determining a target service requested by the first service request message;
and updating a message forwarding strategy corresponding to the target service based on the first target IP address.
2. The method of claim 1, after determining the target service requested by the first service request message, the method further comprising:
determining a source IP address corresponding to the first service request message;
and sending the first service reply message to a first service request node corresponding to the source IP address.
3. The method of claim 1, after updating the packet forwarding policy corresponding to the target service based on the first target IP address, the method further comprising:
receiving a second service request message sent by a second service request node; the second service request message is a message which is generated by the second service request node and is used for requesting the target service;
if the updated message forwarding strategy comprises a first target IP address corresponding to the target service, determining a second service node corresponding to the first target IP address;
sending the second service request message to the second service node; the second service request message is used for requesting the second service node to provide corresponding target service;
receiving a second service reply message sent by the second service node; the second service reply message is response information which is generated by the second service node in response to the second service request message and is used for providing the target service;
and sending the second service reply message to the second service request node.
4. The method of claim 1, wherein prior to receiving the first service reply message sent by the first service node, the method further comprises:
receiving a first service request message sent by a first service request node;
if the message forwarding strategy does not comprise the first target IP address, determining the first service node based on a node allocation strategy;
sending the first service request message to the first service node; the first service request packet is used to be forwarded to a second service node providing the target service through the first service node, so that the second service node generates a third service reply packet for providing the target service in response to the first service request packet, where the first service reply packet includes the third service reply packet.
5. The method according to any one of claims 1 to 4, wherein the updating the message forwarding policy corresponding to the target service based on the first target IP address comprises:
if the switching node is a user plane function node, modifying the distribution strategy corresponding to the target service into the first target IP address; wherein, the message forwarding strategy comprises the shunting strategy;
if the switching node is a virtual switch node which has an association relation with a first service request node, a flow table for indicating that a destination IP address for providing the target service is the first destination IP address is created; wherein the packet forwarding policy includes the flow table.
6. An information processing method applied to a first service node in an edge computing platform, the method comprising:
receiving a third service reply message sent by a second service node corresponding to the first target IP address with the target label; the third service reply message is information of a target service which is generated by the second service node in response to the received first service request message and is used for providing the target service; the target label is obtained by a first service node identifying a first target IP address;
acquiring target identification information; the target identification information is identification information used for indicating that the distribution strategy is updated according to a first target IP address;
obtaining a fourth service reply message based on the first target IP address and the third service reply message;
setting the target identification information at a header option of the IP header of the fourth service reply message to obtain a first service reply message;
sending the first service reply message to a switching node; wherein the first service reply packet is used for enabling the switching node to update the packet forwarding policy corresponding to the target service.
7. The method according to claim 6, wherein before receiving the third service reply message sent by the second service node corresponding to the first target IP address with the target tag, the method further comprises:
receiving a first service request message which is sent by the switching node and used for requesting a target service; wherein the first service request message is sent to the switching node by a first service request node for requesting the target service;
if the first service node is determined to be incapable of providing the target service, determining a first target IP address for providing the target service;
and sending the first service request message to a second service node corresponding to the first target IP address.
8. The method of claim 7, wherein after determining that the first serving node is unable to provide the target service and determining a first target IP address for providing the target service, the method further comprises:
determining a second target IP address corresponding to the first service node;
acquiring a target label;
and based on the target label, performing labeling processing on the communication connection between the first target IP address and the second target IP address.
9. An edge computing platform, the edge computing platform comprising at least: the system comprises a first service node, a first service request node, a switching node with an IP distribution function and a second service node; wherein:
the first service request node is configured to generate a first service request packet requesting to obtain a target service, and send the first service request packet to the switching node;
the switching node, configured to implement the steps of the information processing method according to any one of claims 1 to 5 based on the first service request packet;
the first service node, configured to implement the steps of the information processing method according to any one of claims 6 to 8;
the second service node is used for providing the target service.
10. A storage medium having stored thereon an information processing program which, when executed by a processor, implements the steps of the information processing method according to any one of claims 1 to 5 or claims 6 to 8.
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