CN116366516B - Editing method and device of route information, storage medium and electronic device - Google Patents
Editing method and device of route information, storage medium and electronic device Download PDFInfo
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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
- H04L45/34—Source routing
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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
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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
- H04L45/745—Address table lookup; Address filtering
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Abstract
The embodiment of the invention provides a method and a device for editing route information, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring an initial message to be routed, wherein the initial message is used for indicating routing according to a routing path matched with the initial message; inserting the first route segment set obtained by editing by the first editor into a target position of an initial message to obtain a first message; inserting second routing information corresponding to the second routing segment set obtained by editing by a second editor into the first message to obtain an intermediate message carrying intermediate routing information; and adjusting the intermediate routing information into target routing information to obtain a target message carrying the target routing information. The invention solves the problem of lower editing efficiency of the message routing path in the related technology, and achieves the effect of improving the editing efficiency of the message routing path.
Description
Technical Field
The embodiment of the invention relates to the field of message processing, in particular to a method and a device for editing route information, a storage medium and an electronic device.
Background
Segment Routing is a source Routing technology, and fig. 1 is a schematic diagram of a Segment Routing forwarding plane in the related art, as shown in fig. 1, where the Segment Routing forwarding plane is divided into: SR MPLS (Segment Routing Multi-Protocol Label Switching, multiprotocol label switching segment routing) data plane, SRv (Segment Routing Internet Protocol Version, segment routing based on internet protocol forwarding plane version six) data plane. SRv6 is an SR (Segment Routing) solution based on IPv6 (Internet Protocol Version, sixth edition of internet protocol) extensions. SRv6 the network programmability is further enhanced by backing up the IPv6 data plane, which is beneficial to supporting network and service programmability and opening end-to-end network channels.
Fig. 2 is a schematic diagram of a standard SRv message, such as the standard SRv message shown in fig. 2, which includes SRH (Segment Routing Header ) and outer IPv6, where the SRH is divided into two parts: first, SID List (SEGMENT ID LIST, segment route identification List), length 128 bits, and second, feature fields of SRH, such as: SEGMENT LEFT, LAST ENTRY (LAST ENTRY, number of segment route identification list SIDs), etc.
Fig. 3 is A schematic diagram illustrating SRv SID (SEGMENT ID, segment route identifier) editing, and as shown in fig. 3, when A first node SW-A of SRv receives A message, it determines whether to add SRv encapsulation according to the result of searching the message forwarding table entry. If the MAC dA (MEDIA ACCESS Control Destination Address ) of the received IPv6 packet is the same as the routing MAC (MEDIA ACCESS Control ) of the device, and the routing table entry searches for A hit, the next hop is A SRv forwarding path, and SW-A completes editing of the IPv6 encapsulation according to the routing search result.
The SRH encapsulating operation of SRv first nodes supported by the mainstream chip in the current industry is to add a SRv6 type Nexthop in the exchange chip to complete the editing of SRv SID List, support SRv to forward the traditional network device as the first node, and receive the data message when the ingress port, the specific processing procedure is shown in fig. 4, and fig. 4 is a schematic diagram of the SRH encapsulating operation of SRv first nodes in the related art, as shown in fig. 4, the implementation procedures of encapsulating and SID editing for the chip SRv SRH are as follows:
1, a chip receives a data packet, firstly carries out message analysis processing, acquires information such as messages MACDA, MACDA (MEDIA ACCESS Control Destination Address, media access control initial address), IPv6 DA, IPv6 SA and the like in an analysis module, and carries the message information acquired by analysis to a subsequent processing flow.
2, In the incoming direction pipeline, firstly, according to the message destination IP address IPDA, a forwarding table item is searched, and according to DestMap (destination table) corresponding to the searching result, nexthopPtr (Next Hop Point Record, next-hop pointer record) and other information are carried to the EPE pipeline for processing. Wherein NexthopPtr (Next Hop Point Record, next hop pointer record) is used to index SRv6 the encapsulated edit entry, destMap is used to identify the forwarding egress port.
And 3, in the queue scheduling module, the chip maps to different queues according to Priority (Priority) Priority of the data message and schedules according to the output port.
4, In the outgoing direction pipeline, the chip indexes DsNexthop (next hop encapsulation editing table) according to NextHopPtr in the lookup result of the incoming direction IPE forwarding table item, completes SRv6 SRH encapsulation according to SRv Edit table of DsNexthop, edits multi-layer SRv SID, and forwards the message from the outgoing port to the next hop network device after completing the message editing.
In SRv SRH encapsulation processing, the chip currently supporting SRv also encounters challenges, because the SID List in SRH is composed of a plurality of SEGMENT LIST with 128bit length, more than 3 SRv SID edits, and the resource consumption of the next hop editing table entry of the exchange chip is high. Under partial scenes, the flow rate of SRv is small, but the editing SID layer number is required to be large, and the cost is high by only expanding the Nexthop resource of the chip.
Aiming at the problem of lower editing efficiency of a message forwarding path in the related technology, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides a method and a device for editing route information, a storage medium and an electronic device, which are used for at least solving the problem of low editing efficiency of a message forwarding path in the related technology.
According to an embodiment of the present invention, there is provided an editing method of routing information, including: acquiring an initial message to be routed, wherein the initial message is used for indicating routing according to a routing path matched with the initial message; inserting a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor; inserting second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first message to obtain the intermediate message carrying the intermediate routing information, wherein the second routing information is used for indicating routing according to a path corresponding to the second routing segment set, the plurality of routing segments comprise routing segments in the first routing segment set and routing segments in the second routing segment set, the number of the routing segments included in the second routing segment set is matched with the routing segment editing attribute of the second editor, the second editor is used for editing the routing information in a format matched with the second editor, the plurality of editors comprise the first editor and the second editor, the intermediate routing information has a corresponding relation with the first routing segment set and the second routing segment set, and the target routing segments represented by the first routing segment set and the second routing segment set are matched with the initial message; and adjusting the intermediate routing information into target routing information to obtain a target message carrying the target routing information, wherein the target routing information is used for indicating the target message to be routed according to the target routing path.
Optionally, the inserting the first route segment set edited by the first editor into the target position of the initial packet, to obtain a first packet includes: acquiring first route information corresponding to a first route segment set edited by a first editor, wherein the first route information is used for indicating routing according to a route corresponding to the first route segment set; and inserting the first route segment set included in the first route information into a target position of the initial message to obtain the first message.
Optionally, the inserting the first route segment set included in the first route information into the target position of the initial packet, to obtain the first packet includes: inserting the first routing information into a target position of the initial message to obtain a second message carrying the first routing information; and deleting a protocol message header indicated by a target offset value from the second message to obtain the first message carrying the first route segment set, wherein the first route information comprises the protocol message header and the first route segment set.
Optionally, the inserting the second routing information corresponding to the second routing segment set edited by the second editor into the first packet includes: acquiring a destination routing node of the first message, wherein the destination routing node is a destination of a routing path; determining the target routing path in a target routing table according to the target routing node, wherein the target routing table stores the target routing path pointing to the target routing node; determining a second identifier of the route information of the route segment set to be edited in the target route path; acquiring the second routing information edited by the second editor matched with the second identifier, wherein the second routing information comprises an initial routing message header and the second routing segment set; and inserting the second routing information into the target position of the first message.
Optionally, the adjusting the intermediate routing information to the target routing information to obtain the target packet carrying the target routing information includes: determining route segment information corresponding to the plurality of route segments carried in the intermediate message; obtaining a routing message header to be processed according to the first field change of the initial routing message header of the intermediate routing information by the plurality of routing segments of the target routing path, wherein the first field is used for indicating the field lengths of the plurality of routing segments carried in the intermediate message; changing a second field in the header of the routing message to be processed into a target routing segment to obtain the target message carrying the target routing information, wherein the target routing segment is a second segment routing segment in the plurality of routing segments ordered according to the target routing path, and the second field is used for indicating the next routing segment of the message.
According to still another embodiment of the present invention, there is also provided an editing apparatus of routing information, including: the device comprises an acquisition module, a routing module and a routing module, wherein the acquisition module is used for acquiring an initial message to be routed, and the initial message is used for indicating to route according to a routing path matched with the initial message; the first inserting module is used for inserting a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor; a second inserting module, configured to insert second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first packet to obtain the intermediate packet carrying the intermediate routing information, where the second routing information is used to instruct routing according to a path corresponding to the second routing segment set, the plurality of routing segments include routing segments in the first routing segment set and routing segments in the second routing segment set, the number of routing segments included in the second routing segment set matches with a routing segment editing attribute of the second editor, the second editor is configured to edit routing information in a format matched with the second editor, the plurality of editors include the first editor and the second editor, the intermediate routing information has a corresponding relationship with the first routing segment set and the second routing segment set, and the first routing segment set and the second routing segment set indicate that a target path in the first routing segment set and the second routing segment set matches with the initial routing path; the adjusting module is used for adjusting the intermediate routing information into target routing information to obtain a target message carrying the target routing information, wherein the target routing information is used for indicating the target message to be routed according to the target routing path.
According to a further embodiment of the invention, there is also provided a computer readable storage medium having stored therein a computer program, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
According to a further embodiment of the invention, there is also provided an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
According to the invention, the initial message to be routed is obtained, wherein the initial message is used for indicating to route according to the routing path matched with the initial message; inserting a first route segment set obtained by editing by a first editor into a target position of an initial message to obtain the first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor; inserting second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first message to obtain an intermediate message carrying intermediate routing information, wherein the second routing information is used for indicating routing according to a path corresponding to the second routing segment set, the plurality of routing segments comprise routing segments in the first routing segment set and routing segments in the second routing segment set, the number of the routing segments included in the second routing segment set is matched with the editing attribute of the routing segments of the second editor, the second editor is used for editing the routing information in a format matched with the second editor, the plurality of editors comprise a first editor and a second editor, the intermediate routing information has a corresponding relation with the first routing segment set and the second routing segment set, and the target routing path represented by the routing segments in the first routing segment set and the second routing segment set is matched with the initial message; the method comprises the steps of adjusting intermediate route information into target route information to obtain target message carrying the target route information, wherein the target route information is used for indicating the target message to be routed according to a target route path, namely, after the intermediate route information is adjusted, the editor is used for editing the route information in a matching format with the editor, when the initial message for indicating the route according to the route path matched with the initial message is obtained, the route information of the initial message is edited through a first editor and a second editor to obtain a plurality of route sections corresponding to the route path of the initial message, a plurality of route sections obtained through editing the first editor and the second editor are inserted into the initial message, and then the intermediate message carrying the intermediate route information with the corresponding relation with the plurality of route sections is obtained, after the intermediate route information is adjusted, the target message carrying the target route information can be obtained, the purpose that when the initial message is edited into the route path, a plurality of route sections in the first editor and the second editor are used, the route is edited, the route information is not edited through a plurality of route sections in the first editor, the second editor is used, the route sections are edited through the first editor, the route section is not only, the route sections can be edited through a plurality of route sections, the device can be edited through the route sections, the low-cost is reduced, the capacity of the device can meet the requirement of the required editing device, and the cost is reduced, and the capacity is achieved, and the device can meet the purpose that the required to edit the route editing demands is reduced, and the cost, after the cost is achieved, the editing efficiency of the message routing path is improved.
Drawings
FIG. 1 is a schematic diagram of a Segment Routing forwarding plane in the related art;
FIG. 2 is a diagram of a standard SRv message;
FIG. 3 is a SRv SID edit schematic diagram;
FIG. 4 is a schematic diagram of an SRH encapsulation operation of the SRv head node in the related art;
Fig. 5 is a block diagram of a mobile terminal hardware structure of a method for editing routing information according to an embodiment of the present invention;
fig. 6 is a flowchart of an editing method of routing information according to an embodiment of the present invention;
FIG. 7 is an alternative route segment insertion schematic according to an embodiment of the invention;
FIG. 8 is a message diagram of an alternative first time insertion of a routing message according to an embodiment of the present invention;
FIG. 9 is an alternative intermediate routing information schematic in accordance with an embodiment of the present invention;
FIG. 10 is a flowchart of an alternative target routing path editing method according to an embodiment of the present invention;
FIG. 11 is an alternative message loop back diagram in accordance with an embodiment of the present application;
Fig. 12 is a block diagram of a configuration of an editing apparatus of route information according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided in the embodiments of the present application may be performed in a mobile terminal, a computer terminal or similar computing device. Taking the operation on the mobile terminal as an example, fig. 5 is a block diagram of the hardware structure of the mobile terminal according to the method for editing routing information according to the embodiment of the present application. As shown in fig. 5, the mobile terminal may include one or more processors 502 (only one is shown in fig. 5) (the processor 502 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 504 for storing data, wherein the mobile terminal may further include a transmission device 506 for communication functions and an input-output device 508. It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely illustrative and not limiting of the structure of the mobile terminal described above. For example, the mobile terminal may also include more or fewer components than shown in fig. 5, or have a different configuration than shown in fig. 5.
The memory 504 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to an editing method of routing information in an embodiment of the present invention, and the processor 502 executes the computer program stored in the memory 504 to perform various functional applications and data processing, that is, implement the above-mentioned method. Memory 504 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 504 may further include memory located remotely from the processor 502, which may be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 506 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 506 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 506 may be a Radio Frequency (RF) module, which is used to communicate with the internet wirelessly.
In this embodiment, there is provided a method for editing route information, and fig. 6 is a flowchart of a method for editing route information according to an embodiment of the present invention, as shown in fig. 6, the flowchart includes the following steps:
Step S602, obtaining an initial message to be forwarded, wherein the initial message is used for indicating to route according to a route path matched with the initial message;
step S604, inserting a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor;
Step S606, inserting second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first message to obtain the intermediate message carrying the intermediate routing information, where the second routing information is used to instruct routing according to a path corresponding to the second routing segment set, the plurality of routing segments include routing segments in the first routing segment set and routing segments in the second routing segment set, the number of routing segments included in the second routing segment set matches with a routing segment editing attribute of the second editor, the second editor is used to edit routing information in a format matched with the second editor, the intermediate routing information has a correspondence with the first routing segment set and the second routing segment set, and the target routing paths represented by the routing segments in the first routing segment set and the second routing segment set match with the initial message;
Step S608, adjusting the intermediate routing information to target routing information, to obtain a target packet carrying the target routing information, where the target routing information is used to instruct routing the target packet according to the target routing path.
Through the steps, the editor is used for editing the route information in the matching format with the editor, when the initial message for indicating to carry out the route according to the route path matched with the initial message is obtained, the route information of the initial message is edited through the first editor and the second editor, a plurality of route sections corresponding to the route path of the initial message are obtained, the plurality of route sections obtained through editing by the first editor and the second editor are inserted into the initial message, further, an intermediate message carrying intermediate route information with a corresponding relation with the plurality of route sections is obtained, after the intermediate route information is regulated, the target message carrying the target route information can be obtained, the plurality of route sections in the route path are edited by using the first editor and the second editor when the route path is edited by the initial message, instead of only using one editor to edit the plurality of route sections, the requirement on the editing capacity of the route sections of equipment when the route information is edited is reduced, the pressure of the editor is reduced, the capacity of the device passing through the route sections is reduced, the capacity of the device is higher than the capacity of the device for editing the route section, and the capacity of the device is higher than the capacity of the device is achieved, and the capacity of the device is higher than the capacity of the device is required to realize, and the capacity of the device is higher than the capacity of the device is required to have the capacity to realize the capacity to edit the capacity of the device.
In the technical solution provided in step S602, the initial message may be an IPv6 message or an IPv4 message, which is not limited in this aspect.
Optionally, in this embodiment, the initial packet may carry a target field, according to which information that routes with a routing path of the initial packet can be determined, for example, a destination routing node of the packet and a starting routing node of the packet are carried in a header of the initial packet, and according to which a matched routing path can be determined, or may also be that the initial packet carries identification information for indicating the path, and according to which the routing path matched with the identification information can be determined.
In the technical solution provided in step S604, the target routing path may include only one first routing segment set, or may include a plurality of first routing segment sets, and when the target routing path includes a plurality of first routing segment sets, only the first editor needs to be repeatedly called to edit, so as to obtain a plurality of first routing segment sets.
Alternatively, in this embodiment, the editor is used to edit the routing information, and the editor may be in the form of an edit table in which a fixed field for editing the routing information is stored, or may be a packaged script packet containing a code for editing the routing information, which is not limited in this scheme.
In the technical solution provided in step S606, the target routing path may include only one second routing segment set, or may include a plurality of second routing segment sets, for example, when the target routing segment set includes two second routing segment sets, a second editor needs to be called twice to edit second routing information corresponding to the second routing segment set, and the routing header of the second routing information inserted for the first time in the two second routing information is deleted by setting an offset value.
Optionally, in this embodiment, the second editors of different devices have different editing capabilities, and the number of route segments included in the second route segment set is less than or equal to the maximum number of route segments allowed to be edited by the route segment editing attribute of the second editor, for example, the second editor can edit 3 route segments at a time, and one second route segment set may include 3 route segments or two route segments, which is not limited in this aspect
Optionally, in this embodiment, the intermediate routing information includes a plurality of routing segments in the routing path and a header in the destination format, for example, the intermediate routing information may include a plurality of routing segments included in the destination routing path and an SRH (Segment Routing Header ).
In the solution provided in step S608, the adjustment of the intermediate routing information to the target routing information may be to adjust a fixed field in the header, or may also be to adjust the ordering of multiple routing paths, for example, the intermediate routing information is the routing information in SRv format, and the adjustment is performed on related fields in the SRH (for example, SL (SEGMENT LEFT, the remaining number of segment routing identifiers), LE (LAST ENTRY, the number of segment routing identifier list SID), etc.
As an optional embodiment, the inserting the first route segment set edited by the first editor into the target location of the initial packet, to obtain the first packet includes:
acquiring first route information corresponding to a first route segment set edited by a first editor, wherein the first route information is used for indicating routing according to a route corresponding to the first route segment set;
And inserting the first route segment set included in the first route information into a target position of the initial message to obtain the first message.
Optionally, in this embodiment, the first routing information may include, but is not limited to, a header and a routing segment in the first routing segment set, and inserting the first routing segment set included in the first routing information into the target position of the initial packet may be performed by acquiring only the first routing segment set in the first editor, or inserting the first routing information into the initial packet, and deleting the header in the first routing information after inserting the first routing segment set into the target position of the initial packet.
Alternatively, in this embodiment, the target location may be, but is not limited to, a location immediately after the protocol header in the initial message.
As an optional embodiment, the inserting the first route segment set included in the first route information into the target location of the initial packet, to obtain the first packet includes:
inserting the first routing information into a target position of the initial message to obtain a second message carrying the first routing information;
and deleting a protocol message header indicated by a target offset value from the second message to obtain the first message carrying the first route segment set, wherein the first route information comprises the protocol message header and the first route segment set.
FIG. 7 is an alternative route segment insertion schematic according to an embodiment of the present invention, which may be applied to segment routing by IPv6 protocol message editing SRv, as shown in FIG. 7, may include, but is not limited to, the following operations: the method comprises the steps that first route information of a first route segment set, namely an IPv6 Packet in a graph, is obtained through editing of a first editor, the IPv6 Packet comprises a protocol message Header IPv6 Header and two route segments, the two route segments are respectively stored in an IPv6 SA and an IPv6 DA position of the protocol message, each time of insertion, the IPv6 Packet is packaged to a SRv payload position, an offset value is set after insertion, the IPv6 Header of 8 bytes is cut off, and IPv6 DA and IPv6 SA are reserved and used as SRv SIDs.
As an optional embodiment, the obtaining the first route information corresponding to the first route segment set edited by the first editor includes:
acquiring a destination routing node of the initial message, wherein the destination routing node is a destination of a routing path;
determining the target routing path in a target routing table according to the target routing node, wherein the target routing table stores the target routing path pointing to the target routing node;
Determining a first identifier of route information of a route segment set to be edited in the target route path;
And acquiring the first route information edited by the first editor matched with the first identifier.
Optionally, in this embodiment, the first identifier is an identifier for indicating a route segment to be edited, and the first identifier may be a number of the route segment in a route path, or may be information of a start node or information of an end node of the route segment, or the like, which is not limited in this scheme.
Optionally, in this embodiment, the method for determining the route information of the set of route segments to be edited in the target route path may be, but not limited to, determining the route segments included in the target route path according to matching the edited route segments included in the packet, or determining the information of the termination nodes of the edited route segments included in the packet, and then determining the information of the route segments arranged behind the termination nodes according to the ordering of the route segments in the target route path.
As an optional embodiment, the inserting the second routing information corresponding to the second routing segment set edited by the second editor into the first packet includes:
acquiring a destination routing node of the first message, wherein the destination routing node is a destination of a routing path;
determining the target routing path in a target routing table according to the target routing node, wherein the target routing table stores the target routing path pointing to the target routing node;
Determining a second identifier of the route information of the route segment set to be edited in the target route path;
Acquiring the second routing information edited by the second editor matched with the second identifier, wherein the second routing information comprises an initial routing message header and the second routing segment set;
And inserting the second routing information into the target position of the first message.
Alternatively, in this embodiment, the target location may be, but is not limited to, a location immediately after the protocol header in the initial message.
As an optional embodiment, the adjusting the intermediate routing information to the target routing information, to obtain the target packet carrying the target routing information includes:
Determining route segment information corresponding to the plurality of route segments carried in the intermediate message;
Obtaining a routing message header to be processed according to the first field change of the initial routing message header of the intermediate routing information by the plurality of routing segments of the target routing path, wherein the first field is used for indicating the field lengths of the plurality of routing segments carried in the intermediate message;
Changing a second field in the header of the routing message to be processed into a target routing segment to obtain the target message carrying the target routing information, wherein the target routing segment is a second segment routing segment in the plurality of routing segments ordered according to the target routing path, and the second field is used for indicating the next routing segment of the message.
Optionally, in this embodiment, the second editor may be used to edit the second routing information, that is, the routing message including the routing Header and the second set of routing segments, where the second editor is used to edit the routing message, and the second editor may edit two routing segments at a time, where the second set of routing segments includes the routing segment of the start node of the target routing path, insert the second routing information into the initial message, then insert the first set of routing segments edited by the first editor into the initial message into which the second routing information has been inserted, where the first editor is used to edit the protocol message, such as the target routing path includes 10 routing segments, and in order from the start point to the end point of the routing path, SID1, SID2, … …, SID9, SID10, and then edit the routing information of SID1 and SID2 using the second editor, and fig. 8 is a schematic diagram of an alternative message in which the routing message is first inserted according to an embodiment of the present invention, as shown in fig. 8, but not limited to, a protocol Header IPv6 Header including an initial message, where the protocol Header includes a destination routing node IPv6 DA0 of a destination routing path and a start routing node IPv6SA0 of the destination routing path, the inserted second routing information includes SRH, SID1 and SID2, after inserting the second routing information, SID3 to SID10 are edited using a first editor, the first editor edits two routing segments at a time, the first editor is an editor editing a protocol message in IPv6 format, where, because the field lengths of IPv6 DA and IPv6SA of the first routing information of the first editor are both 128 bytes and equal to the byte length of the SID, the fields of IPv6 DA and IPv6SA in the first routing information edited by the first editor are made to be corresponding routing segments, and after inserting the fields of IPv6 DA and IPv6SA in the first routing information into SRH fields, fig. 9 is a schematic diagram of alternative intermediate routing information according to an embodiment of the present invention, where SID3 to SID10 are routing segments edited by invoking the first editor, and after obtaining an intermediate message containing intermediate routing information, field information of SID1 to SID10 modifies fields in SRH of the intermediate routing information to obtain a target message containing target routing information.
Fig. 10 is a flowchart of an alternative target routing path editing method according to an embodiment of the present invention, in which a scheme for enhancing the editing capability of a switch chip to SRv SID is implemented, based on being fully compatible with an existing chip architecture design, by matching the IPv6 editing capability of the chip with a chip loopback mechanism, to implement SRv SID editing capability with more layers, as shown in fig. 10, which may include, but is not limited to, the following steps:
S1001, the chip receives the data packet, firstly carries out message analysis processing, acquires information such as a message MACDA, MACSA, IPv DA, an IPv6 SA and the like in an analysis module, and carries the analyzed and acquired message information to a subsequent processing flow.
S1002, in the incoming direction pipeline, firstly, a forwarding table item is searched according to a message destination IP address IPDA, and information such as an output port, a NextHop and the like corresponding to a search result is carried to an EPE pipeline for processing. Wherein, nextHop is used to index SRv the encapsulated edit entry and outport is used to identify the forwarding egress port.
S1003, in a queue scheduling module, the chip maps to different queues according to Priority of the data message and schedules according to the output port.
S1004, in the outgoing direction pipeline, the chip forwards NextHopPtr index in the table item searching result to the next hop in the incoming direction IPE (INGRESSPIPELINE, entry channel), and completes editing of IPv6 SA and IPv6 DA according to an IPv6 Header editing table of the next hop and editing of 8 bytes before an IPv6 Header. Where IPv6 DA and IPv6 SA are used here as 2 SIDs in SRv SRH, if more SRv SIDs need to be added, which needs to be looped back again through the chip to the IPE pipeline processing.
S1005, it is determined whether the switch back mechanism needs to be executed, if not, step S1007 is executed, and if so, step S1006 is executed.
S1006, executing a switching mechanism, when the IPE pipeline is looped back again, firstly, carrying out message analysis processing, obtaining information such as message IPv6 DA, IPv6 SA and the like in an analysis module, carrying the analyzed and obtained message information to a subsequent processing flow, and secondly, entering the direction pipeline by IPE, firstly, searching ACL (access control list) table entries according to a message destination IP address IPv6 DA, and according to a strip_offset=8 in a searching result, representing that 8 bytes before the IPv6 Header corresponding to the offset is cut off, and in addition, carrying information such as an output port, a next hop and the like corresponding to the ACL searching result to EPE (EGRESS PIPELINE, an outlet channel) pipeline processing. When the SID to be edited by the IPv6 editing table is not completely edited, the next hop is used for indexing the IPv6 encapsulated editing table item, and when the SID to be edited by the IPv6 editing table is not completely edited, the next hop is used for indexing the IPv6 encapsulated editing table item, the output port is used for identifying a forwarding output port, and the pipeline is in the output direction for the second time after Loop, at the moment, the IPv6 message is cut off by 8 bytes before the IPv6 Header. The chip can enter a next hop index in the result of the search of the table item of the direction IPEACL, and finish the editing of the IPv6 SA and the IPv6 DA at the appointed Offset position according to the IPv6 header editing table of the next hop.
S1007, outputting the target message carrying the target route path.
FIG. 11 is an alternative message looping back diagram, which is applied to a chip of the flow chart of the routing path editing method of FIG. 10, according to an embodiment of the present application, where the chip shown In FIG. 11 may include, but is not limited to, the following, where a message is input to an IPE from an IPv6 Packet In port of a switch, after parsing of the message is completed, the parsed information is carried to an EPE pipeline process, and one route segment editing is completed, and when a switch back process is required, the message after the EPE process loops back to the IPE pipeline process again, and the TM (TRAFFIC MANAGE, schedule management) is used for queue scheduling, and may be mapped to different queues according to Priority of the data message, and scheduled according to an output port.
According to the invention, through the IPv6 editing capability of the chip and the cooperation of a chip loop-back mechanism, SRv SID editing capability with more layers is realized, the challenge that the number of layers is insufficient in one-time SRv SID editing of the chip is solved, and the cost and complexity of the chip in editing capability design are reduced; the IPv6 table entry and the loopback mechanism of the chip are fully multiplexed, firstly, the pressure of table entry resource consumption of SRv Nexthop is reduced, and secondly, the extra 2-layer 128bit SRv6 SID editing capability is realized under the condition that the complexity of chip design is not required to be increased.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
There is also provided an editing apparatus of routing information in the present embodiment, and fig. 12 is a block diagram of the editing apparatus of routing information according to an embodiment of the present invention, as shown in fig. 12, the apparatus including:
An obtaining module 1202, configured to obtain an initial packet to be routed, where the initial packet is used to instruct routing according to a routing path that matches the initial packet;
A first inserting module 1204, configured to insert a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, where the number of route segments included in the first route segment set is matched with a route segment editing attribute of the first editor, where the route segment editing attribute is used to indicate the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used to edit route information in a format matched with the first editor;
a second inserting module 1206, configured to insert second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first packet to obtain the intermediate packet carrying the intermediate routing information, where the second routing information is used to instruct routing according to a path corresponding to the second routing segment set, the plurality of routing segments include routing segments in the first routing segment set and routing segments in the second routing segment set, the number of routing segments included in the second routing segment set matches with a routing segment editing attribute of the second editor, the second editor is used to edit routing information in a format matched with the second editor, the plurality of editors include the first editor and the second editor, the intermediate routing information has a correspondence with the first routing segment set and the second routing segment set, and the first routing segment set and the second routing segment set indicate that the target paths in the first routing segment set and the second routing segment set match with the initial routing paths;
The adjusting module 1208 is configured to adjust the intermediate routing information to target routing information, so as to obtain a target packet carrying the target routing information, where the target routing information is used to instruct routing the target packet according to the target routing path.
Optionally, the first insertion module includes: the first acquisition unit is used for acquiring first route information corresponding to a first route segment set edited by a first editor, wherein the first route information is used for indicating routing according to a route corresponding to the first route segment set; the first inserting unit is configured to insert the first route segment set included in the first route information into a target position of the initial packet, so as to obtain the first packet.
Optionally, the first inserting unit is configured to: inserting the first routing information into a target position of the initial message to obtain a second message carrying the first routing information; and deleting a protocol message header indicated by a target offset value from the second message to obtain the first message carrying the first route segment set, wherein the first route information comprises the protocol message header and the first route segment set.
Optionally, the second insertion module includes: a second obtaining unit, configured to obtain a destination routing node of the first packet, where the destination routing node is an end point of a routing path; a first determining unit, configured to determine, according to the destination routing node, the destination routing path in a destination routing table, where the destination routing table stores the destination routing path pointing to the destination routing node; a second determining unit, configured to determine, in the target routing path, a second identifier of routing information of a set of routing segments to be edited; a third obtaining unit, configured to obtain the second routing information edited by the second editor that matches the second identifier, where the second routing information includes an initial routing packet header and the second routing segment set; and the second inserting unit is used for inserting the second routing information into the target position of the first message.
Optionally, the adjusting module includes: a third determining unit, configured to determine route segment information corresponding to the plurality of route segments carried in the intermediate packet; a first changing unit, configured to change a first field of an initial routing header of the intermediate routing information according to the plurality of routing segments of the target routing path to obtain a routing header to be processed, where the first field is used to indicate field lengths of the plurality of routing segments carried in the intermediate message; and a second changing unit, configured to change a second field in the to-be-processed routing packet header to a target routing segment, to obtain the target packet carrying the target routing information, where the target routing segment is a second segment routing segment in the plurality of routing segments ordered according to the target routing path, and the second field is used to indicate a next routing segment of the packet.
It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; or the above modules may be located in different processors in any combination.
Embodiments of the present invention also provide a computer readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
In one exemplary embodiment, the computer readable storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing a computer program.
An embodiment of the invention also provides an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
In an exemplary embodiment, the electronic apparatus may further include a transmission device connected to the processor, and an input/output device connected to the processor.
Specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the exemplary implementation, and this embodiment is not described herein.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for editing routing information, comprising:
Acquiring an initial message to be routed, wherein the initial message is used for indicating routing according to a routing path matched with the initial message;
Inserting a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor;
Inserting second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first message to obtain an intermediate message carrying intermediate routing information, wherein the second routing information is used for indicating routing according to a path corresponding to the second routing segment set, a plurality of routing segments comprise routing segments in the first routing segment set and routing segments in the second routing segment set, the number of the routing segments included in the second routing segment set is matched with the routing segment editing attribute of the second editor, the second editor is used for editing the routing information in a format matched with the second editor, the intermediate routing information has a corresponding relation with the first routing segment set and the second routing segment set, and a target routing path represented by the routing segments in the first routing segment set and the second routing segment set is matched with the initial message;
And adjusting the intermediate routing information into target routing information to obtain a target message carrying the target routing information, wherein the target routing information is used for indicating the target message to be routed according to the target routing path.
2. The method of claim 1, wherein inserting the first set of route segments edited by the first editor into the target location of the initial message to obtain the first message comprises:
acquiring first route information corresponding to a first route segment set edited by a first editor, wherein the first route information is used for indicating routing according to a route corresponding to the first route segment set;
And inserting the first route segment set included in the first route information into a target position of the initial message to obtain the first message.
3. The method of claim 2, wherein inserting the first set of route segments included in the first route information into the target location of the initial message, obtaining the first message comprises:
inserting the first routing information into a target position of the initial message to obtain a second message carrying the first routing information;
and deleting a protocol message header indicated by a target offset value from the second message to obtain the first message carrying the first route segment set, wherein the first route information comprises the protocol message header and the first route segment set.
4. The method of claim 1, wherein inserting second routing information corresponding to the second set of routing segments edited by the second editor into the first message comprises:
acquiring a destination routing node of the first message, wherein the destination routing node is a destination of a routing path;
determining the target routing path in a target routing table according to the target routing node, wherein the target routing table stores the target routing path pointing to the target routing node;
Determining a second identifier of the route information of the route segment set to be edited in the target route path;
Acquiring the second routing information edited by the second editor matched with the second identifier, wherein the second routing information comprises an initial routing message header and the second routing segment set;
And inserting the second routing information into the target position of the first message.
5. The method of claim 1, wherein the adjusting the intermediate routing information to target routing information to obtain a target message carrying the target routing information comprises:
Determining route segment information corresponding to the plurality of route segments carried in the intermediate message;
Obtaining a routing message header to be processed according to the first field change of the initial routing message header of the intermediate routing information by the plurality of routing segments of the target routing path, wherein the first field is used for indicating the field lengths of the plurality of routing segments carried in the intermediate message;
Changing a second field in the header of the routing message to be processed into a target routing segment to obtain the target message carrying the target routing information, wherein the target routing segment is a second segment routing segment in the plurality of routing segments ordered according to the target routing path, and the second field is used for indicating the next routing segment of the message.
6. An editing apparatus for route information, comprising:
The device comprises an acquisition module, a routing module and a routing module, wherein the acquisition module is used for acquiring an initial message to be routed, and the initial message is used for indicating to route according to a routing path matched with the initial message;
The first inserting module is used for inserting a first route segment set obtained by editing by a first editor into a target position of the initial message to obtain a first message, wherein the number of route segments included in the first route segment set is matched with route segment editing attributes of the first editor, the route segment editing attributes are used for indicating the number of route segments allowed to be edited when the editor edits route information once, and the first editor is used for editing the route information in a format matched with the first editor;
The second inserting module is configured to insert second routing information corresponding to a second routing segment set obtained by editing by a second editor into the first packet to obtain an intermediate packet carrying intermediate routing information, where the second routing information is used to instruct routing according to a path corresponding to the second routing segment set, a plurality of routing segments include routing segments in the first routing segment set and routing segments in the second routing segment set, the number of routing segments included in the second routing segment set matches with a routing segment editing attribute of the second editor, the second editor is configured to edit the routing information in a format matched with the second editor, the intermediate routing information has a correspondence with the first routing segment set and the second routing segment set, and a target routing path represented by a routing segment in the first routing segment set and the second routing segment set matches with the initial packet;
The adjusting module is used for adjusting the intermediate routing information into target routing information to obtain a target message carrying the target routing information, wherein the target routing information is used for indicating the target message to be routed according to the target routing path.
7. The apparatus of claim 6, wherein the first insertion module comprises:
The first acquisition unit is used for acquiring first route information corresponding to a first route segment set edited by a first editor, wherein the first route information is used for indicating routing according to a route corresponding to the first route segment set;
the first inserting unit is configured to insert the first route segment set included in the first route information into a target position of the initial packet, so as to obtain the first packet.
8. The apparatus of claim 7, wherein the first insertion unit is configured to:
inserting the first routing information into a target position of the initial message to obtain a second message carrying the first routing information;
and deleting a protocol message header indicated by a target offset value from the second message to obtain the first message carrying the first route segment set, wherein the first route information comprises the protocol message header and the first route segment set.
9. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, wherein the computer program, when being executed by a processor, implements the steps of the method according to any of the claims 1 to 5.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of any one of claims 1 to 5 when the computer program is executed.
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| CN202111621056.5A CN116366516B (en) | 2021-12-27 | 2021-12-27 | Editing method and device of route information, storage medium and electronic device |
| PCT/CN2022/142480 WO2023125563A1 (en) | 2021-12-27 | 2022-12-27 | Routing information editing method and apparatus, and storage medium and electronic apparatus |
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| CN103577643A (en) * | 2013-11-06 | 2014-02-12 | 中国空间技术研究院 | SRAM type FPGA single event upset effect simulation method |
| CN112787927A (en) * | 2021-03-26 | 2021-05-11 | 新华三信息安全技术有限公司 | Segmented routing message forwarding method and device and preset logic circuit unit |
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| US9525419B2 (en) * | 2012-10-08 | 2016-12-20 | Efinix, Inc. | Heterogeneous segmented and direct routing architecture for field programmable gate array |
| WO2016102008A1 (en) * | 2014-12-23 | 2016-06-30 | Telefonaktiebolaget L M Ericsson (Publ) | Path computation in a segment routing network |
| CN106411738A (en) * | 2015-07-30 | 2017-02-15 | 中兴通讯股份有限公司 | Processing method and apparatus of packaging of IPV6 message |
| CN105635167A (en) * | 2016-01-25 | 2016-06-01 | 盛科网络（苏州）有限公司 | Method and device for realizing message edition function by using hardware |
| CN111314219B (en) * | 2020-02-24 | 2022-12-09 | 苏州盛科通信股份有限公司 | Efficient forwarding method and device for IPv6 segmented routing |
| US11777846B2 (en) * | 2020-05-06 | 2023-10-03 | Nokia Solutions And Networks Oy | Ultra reliable segment routing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103577643A (en) * | 2013-11-06 | 2014-02-12 | 中国空间技术研究院 | SRAM type FPGA single event upset effect simulation method |
| CN112787927A (en) * | 2021-03-26 | 2021-05-11 | 新华三信息安全技术有限公司 | Segmented routing message forwarding method and device and preset logic circuit unit |
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