CN112019459B - Message processing method and system based on dynamic online and offline of equipment in stacking system - Google Patents
Message processing method and system based on dynamic online and offline of equipment in stacking system Download PDFInfo
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- CN112019459B CN112019459B CN202010941648.4A CN202010941648A CN112019459B CN 112019459 B CN112019459 B CN 112019459B CN 202010941648 A CN202010941648 A CN 202010941648A CN 112019459 B CN112019459 B CN 112019459B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/15—Interconnection of switching modules
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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
- H04L45/58—Association of routers
- H04L45/583—Stackable routers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
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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
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Abstract
The invention discloses a message processing method and a system based on dynamic online and offline of equipment in a stacking system, wherein the method comprises the following steps: configuring a first SFD value corresponding to a stacking port; receiving a message and extracting an SFD field in the message; and comparing the SFD field with the first SFD value, if the SFD field is consistent with the first SFD value, judging the message to be a stacked message, and if the SFD field is inconsistent with the first SFD value, judging the message to be a non-stacked message. According to the invention, through modification and verification of the SFD field of the message, the stacked message and the common message can be distinguished, the common message is prevented from entering the stacked port, and the stacked message is prevented from entering the common port, so that the problems of message analysis, abnormal forwarding and the like when the common port is connected with the stacked port are solved under the condition of not increasing any bandwidth overhead.
Description
Technical Field
The invention belongs to the technical field of message transmission, and particularly relates to a message processing method and system based on dynamic online and offline of equipment in a stacking system.
Background
In the existing network, when the network scale is continuously enlarged and the bandwidth requirement of the switch is increased, the new switch and the original switch form a stacking system to provide the port density, so as to achieve the purpose of increasing the bandwidth.
The adoption of the stacking technology can lead a plurality of switches to be regarded as an integral switching device logically, simplify the management and achieve the purpose of increasing the bandwidth at the same time.
Regardless of box stacking or frame stacking, the most core is actually the message going out from the stacking port, and a stacking head is additionally added to carry the information (such as an egress port, priority, etc.) searched and analyzed on the chip to the stacking port of the opposite end. The opposite end analyzes the stack head, and directly transmits the stack head to the corresponding port according to the information in the stack head, or analyzes the message again for transmitting.
In the prior art, if a port is configured as a stack port, all messages received from the port are identified as stack messages. That is, if a normal message comes, it will also be analyzed according to the stack message, and a forwarding port, an editing behavior, etc. will be obtained, and the message is processed according to the analyzed information, which may cause the occurrence of chip abnormality, etc.
Specifically, as shown in fig. 1, the first switching device Switch1 and the second switching device Switch2 start to operate as independent devices, and normal services are executed. The Port2 of the first switching device Switch1 and the Port2 of the second switching device Switch2 send and receive common ethernet packets, and the Port3 also sends and receives common ethernet packets.
Because the Switch1 and Switch2 need to build a stack system due to the service, before Port2 and Port3 are configured as stack ports, the opposite end is informed when to build a stack by sending C2C messages, and configure corresponding Port2 and Port3 as stack ports, and both sides are configured as stack ports in a C2C message synchronization state. However, since the previous ports 2 and 3 participate in normal service forwarding, it is still possible to receive normal ethernet packets when the ports 2 and 3 are configured as stacked ports, which results in erroneous parsing and abnormal forwarding.
Similarly, the Switch1 and the Switch2 already form a normal stacking system, and in the stable operation process, suddenly due to service change, the Switch1 and the Switch2 need to be operated as independent devices, and then the ports 2 and 3 need to be switched to normal ports, so that the situation that the stacked messages are still received after the ports 2 and 3 are switched to normal ports exists, which may cause the stacked messages to be incorrectly forwarded as service messages.
Therefore, in order to solve the above technical problems, it is necessary to provide a message processing method and system based on dynamic online and offline of devices in a stacking system.
Disclosure of Invention
In view of the above, the present invention provides a message processing method and system based on dynamic online and offline of devices in a stacking system.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
a message processing method based on dynamic online and offline of equipment in a stacking system comprises the following steps:
configuring a first SFD value corresponding to a stacking port;
receiving a message and extracting an SFD field in the message;
and comparing the SFD field with the first SFD value, if the SFD field is consistent with the first SFD value, judging the message to be a stacked message, and if the SFD field is inconsistent with the first SFD value, judging the message to be a non-stacked message.
In one embodiment, the method further comprises:
if the message is a stacked message, analyzing a stacked head of the stacked message, and performing corresponding logic processing or forwarding;
and if the message is a non-stack message, discarding the message.
In one embodiment, the method further comprises:
switching the stack port to a normal port;
configuring a second SFD value corresponding to the common port, wherein the second SFD value is different from the first SFD value;
and comparing the SFD field with the second SFD value, if the SFD field is consistent with the second SFD value, judging the message to be a common message, and if the SFD field is inconsistent with the second SFD value, judging the message to be a non-common message.
In one embodiment, the method further comprises:
if the message is a common message, analyzing a front header of the common message, and performing corresponding logic processing or forwarding;
and if the message is an abnormal message, discarding the message.
In an embodiment, the first SFD value and/or the second SFD value is stored in a register corresponding to a port.
The technical scheme provided by another embodiment of the invention is as follows:
a message processing method based on dynamic on-line and off-line of equipment in a stacking system is characterized by comprising the following steps:
configuring a first SFD value corresponding to a stacking port;
packaging the stacking head into a stacking message;
and updating the first SFD value into an SFD field of the stack head and transmitting.
In one embodiment, the method further comprises:
switching the stack port to a normal port;
configuring a second SFD value corresponding to the common port;
packaging the front leader into a common message;
and updating the second SFD value into the SFD field of the front head and transmitting.
In an embodiment, the first SFD value and/or the second SFD value is stored in a register corresponding to a port.
The technical scheme provided by the further embodiment of the invention is as follows:
a message processing system based on dynamic on-off-line of devices in a stacked system, the system comprising:
the first switching equipment is provided with a plurality of first ports for sending messages;
a first register for storing a first SFD value and configured at a first port;
and the first processing unit is used for updating the first SFD value into the SFD field of the stack head and sending the first SFD value.
The technical scheme provided by the further embodiment of the invention is as follows:
a message processing system based on dynamic on-off-line of devices in a stacked system, the system comprising:
the second switching equipment is provided with a plurality of second ports for receiving the messages;
a second register for storing the first SFD value and configured at the second port;
and the second processing unit is used for extracting the SFD field in the message, comparing the SFD field with the first SFD value, judging the message to be a stacked message if the SFD field is consistent with the first SFD value, and judging the message to be a non-stacked message if the SFD field is not consistent with the first SFD value.
The invention has the following beneficial effects:
according to the invention, through modification and verification of the SFD field of the message, the stacked message and the common message can be distinguished, the common message is prevented from entering the stacked port, and the stacked message is prevented from entering the common port, so that the problems of message analysis, abnormal forwarding and the like when the common port is connected with the stacked port are solved under the condition of not increasing any bandwidth overhead.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a prior art stacking system;
fig. 2 is a schematic flow chart of a message processing method according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a message processing method according to a second embodiment of the present invention;
fig. 4 is a schematic block diagram of a message processing system according to a third embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, a first embodiment of the present invention discloses a message processing method based on dynamic online and offline of devices in a stacking system, which corresponds to a message receiving end, and the message processing method includes:
configuring a first SFD value corresponding to a stacking port;
receiving a message and extracting an SFD field in the message;
and comparing the SFD field with the first SFD value, if the SFD field is consistent with the first SFD value, judging the message to be a stacked message, and if the SFD field is inconsistent with the first SFD value, judging the message to be a non-stacked message.
Specifically, the first SFD value is stored in the register, and the first SFD value corresponding to each stack port is different, and the first SFD value is different from an SFD field (start frame delimiter, which indicates the start of a frame) in the header of the normal packet, for example, the standard SFD field in this embodiment is 0xD5, and the first SFD value is configured to be 0x 5D. When a stack port is configured, the SFD value of the corresponding stack port is configured to be 0x 5D.
After receiving the message, firstly extracting an SFD field in the message, if the SFD field in the message is consistent with a first SFD value (0x5D), judging the message to be a stacked message, analyzing a stacking head of the stacked message, and performing corresponding logic processing or forwarding; if the SFD field in the message is not consistent with the first SFD value (0x5D), the message is judged to be a non-stack message, and the message is directly discarded.
Further, when the stack port is switched to the normal port, the corresponding operation is as follows:
configuring a second SFD value corresponding to the common port, wherein the second SFD value is different from the first SFD value;
and comparing the SFD field with the second SFD value, if the SFD field is consistent with the second SFD value, judging the message to be a common message, and if the SFD field is inconsistent with the second SFD value, judging the message to be a non-common message.
Specifically, the second SFD value is stored in the register, and the second SFD value corresponding to each stack port is different, and in addition, the second SFD value may be the same as or different from an SFD field (start frame delimiter, which indicates the start of a frame) in the normal packet preamble header, for example, in this embodiment, the second SFD value is configured as a default SFD field (0xD5) in the normal packet preamble header.
After receiving the message, firstly extracting an SFD field in the message, if the SFD field in the message is consistent with a second SFD value (0xD5), judging that the message is a common message, analyzing a front header of the common message, and performing corresponding logic processing or conversion; if the SFD field in the message is not consistent with the second SFD value (0xD5), the message is judged to be an abnormal message, and the message is directly discarded.
In this embodiment, the first SFD value and the second SFD value corresponding to different ports may be stored in the same register, or may be stored in different registers, which is not described herein any more.
Referring to fig. 3, a second embodiment of the present invention discloses a message processing method based on dynamic online and offline of devices in a stacking system, which corresponds to a message sending end, and the message processing method includes:
configuring a first SFD value corresponding to a stacking port;
packaging the stacking head into a stacking message;
and updating the first SFD value into an SFD field of the stack head and transmitting.
Specifically, the first SFD value is stored in the register, and the first SFD value corresponding to each stack port is different, and the first SFD value is different from an SFD field (start frame delimiter, which indicates the start of a frame) in the header of the normal packet, for example, the standard SFD field in this embodiment is 0xD5, and the first SFD value is configured to be 0x 5D. When a stack port is configured, the SFD value of the corresponding stack port is configured to be 0x 5D.
After the stack port is configured, normal packaging of the stack message is carried out, when the stack message needs to be sent outwards, the first SFD value (0x5D) configured in the corresponding stack port register is updated to the SFD field of the stack head, and then the stack message is directly sent.
Further, when the stack port is switched to the normal port, the corresponding operation is as follows:
configuring a second SFD value corresponding to the common port;
packaging the front leader into a common message;
and updating the second SFD value into the SFD field of the front head and transmitting.
Specifically, the second SFD value is stored in the register, and the second SFD value corresponding to each stack port is different, and in addition, the second SFD value may be the same as or different from an SFD field (start frame delimiter, which indicates the start of a frame) in the normal packet preamble header, for example, in this embodiment, the second SFD value is configured as a default SFD field (0xD5) in the normal packet preamble header.
Referring to fig. 4, a third embodiment of the present invention discloses a message processing system based on dynamic online and offline of devices in a stacking system, which includes:
a first switch device 10 having a plurality of first ports 11-14 for sending messages;
a first register 11 for storing a first SFD value and configured at the first port;
the first processing unit 12 is configured to update the first SFD value into an SFD field of the stack header and send the updated first SFD value;
a second switch device 20 having a plurality of second ports 21-24 for receiving packets;
a second register 21 for storing the first SFD value and configured at the second port;
the second processing unit 22 is configured to extract an SFD field in the message, compare the SFD field with the first SFD value, determine that the message is a stacked message if the SFD field is consistent with the first SFD value, and determine that the message is a non-stacked message if the SFD field is inconsistent with the first SFD value.
Preferably, the second SFD value in this embodiment is configured as an SFD field 0xD5 in the preamble of the normal packet, and the first SFD value is configured as 0x5D, although in other embodiments, the first SFD value and the second SFD value corresponding to different ports may also be configured as other values.
In addition, in this embodiment, the first SFD values and the second SFD values of all ports on the first switch device are stored in the same first register, and the first SFD values and the second SFD values of all ports on the second switch device are stored in the same second register.
The message processing method and the message processing system can be suitable for sending and receiving messages of various chips, such as ASIC (application specific integrated circuit) chips, FPGA (field programmable gate array) chips or NP (network processor) chips and the like.
According to the technical scheme, the invention has the following advantages:
according to the invention, through modification and verification of the SFD field of the message, the stacked message and the common message can be distinguished, the common message is prevented from entering the stacked port, and the stacked message is prevented from entering the common port, so that the problems of message analysis, abnormal forwarding and the like when the common port is connected with the stacked port are solved under the condition of not increasing any bandwidth overhead.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, the functionality of the modules may be implemented in the same one or more software and/or hardware implementations in implementing one or more embodiments of the present description.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of one or more embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, one or more embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, one or more embodiments of the present description 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, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
One or more embodiments of the present description may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. One or more embodiments of the specification may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A message processing method based on dynamic on-line and off-line of equipment in a stacking system is characterized by comprising the following steps:
configuring a first SFD value corresponding to a stacking port;
receiving a message and extracting an SFD field in the message;
comparing the SFD field with the first SFD value, if the SFD field is consistent with the first SFD value, judging the message to be a stacked message, and if the SFD field is inconsistent with the first SFD value, judging the message to be a non-stacked message;
the first SFD value is stored in the register, the first SFD value corresponding to each stacking port is different, the first SFD value is different from an SFD field in a common message front head, and the SFD is a frame start delimiter and represents the start of a frame;
the method further comprises the following steps:
switching the stack port to a normal port;
configuring a second SFD value corresponding to the common port, wherein the second SFD value is different from the first SFD value;
comparing the SFD field with the second SFD value, if the SFD field is consistent with the second SFD value, judging the message to be a common message, and if the SFD field is inconsistent with the second SFD value, judging the message to be a non-common message;
and the second SFD value is stored in the register, the second SFD value corresponding to each stacking port is different, and the second SFD value is the same as or different from the SFD field in the common message front header.
2. The method according to claim 1, further comprising:
if the message is a stacked message, analyzing a stacked head of the stacked message, and performing corresponding logic processing or forwarding;
and if the message is a non-stack message, discarding the message.
3. The method according to claim 1, further comprising:
if the message is a common message, analyzing a front header of the common message, and performing corresponding logic processing or forwarding;
and if the message is an abnormal message, discarding the message.
4. A message processing method based on dynamic on-line and off-line of equipment in a stacking system is characterized by comprising the following steps:
configuring a first SFD value corresponding to a stacking port;
packaging the stacking head into a stacking message;
updating the first SFD value into an SFD field of the stack head, and sending;
the first SFD value is stored in the register, the first SFD value corresponding to each stacking port is different, the first SFD value is different from an SFD field in a common message front head, and the SFD is a frame start delimiter and represents the start of a frame;
the method further comprises the following steps:
switching the stack port to a normal port;
configuring a second SFD value corresponding to the common port;
packaging the front leader into a common message;
updating the second SFD value to the SFD field of the leading head, and sending;
and the second SFD value is stored in the register, the second SFD value corresponding to each stacking port is different, and the second SFD value is the same as or different from the SFD field in the common message front header.
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