CN112039790B - Method and device for realizing INT information editing in stacking system - Google Patents
Method and device for realizing INT information editing in stacking system Download PDFInfo
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- H—ELECTRICITY
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- H04L49/00—Packet switching elements
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- H04L49/25—Routing or path finding in a switch fabric
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- H—ELECTRICITY
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Abstract
The invention has disclosed a method for realizing INT information editing in the system of piling up and apparatus, the method includes while transmitting the business message, insert the edge chip to monitor and keep the OAM information produced while transmitting the current message, and according to OAM information that users need to be carried in the current message of configuration, produce OAM data section and insert in the current message; the transmission chip and the edge-out chip monitor and store OAM information generated when the current message is forwarded, acquire the OAM information carried by the current message, calculate and acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded, and replace the corresponding OAM information in the message with the new OAM information. The invention enables the input edge chip to insert the OAM data segment required by the message, and the transmission chip and the output edge chip to update the OAM data segment carried by the message, thereby realizing the INT function in the stacking system.
Description
Technical Field
The present invention relates to the field of network technologies, and in particular, to a method and an apparatus for implementing INT information editing in a stacking system.
Background
Management of networks is generally divided into three main categories: operation (Operation), management (Administration) and Maintenance (Maintenance), called OAM (Operation Administration and Maintenance), wherein the Operation mainly completes the analysis, prediction, planning and configuration of the daily network and service; the maintenance mainly completes the test and fault management of the network and its service. At present, there are two OAM implementation schemes, one is to complete the corresponding OAM function through an OAM protocol message, and the other is to complete the corresponding OAM function by carrying OAM information In a service message, which is called as In-band OAM (In-band OAM), also called as INT (In-band OAM). The in-band OAM is synchronous with the service data message, so that the network management work can be realized more accurately and more comprehensively, but the in-band OAM needs to dynamically insert OAM information in the forwarding process of the network equipment, so that the network equipment needs to meet the following requirements (1) that the insertion of the OAM information does not influence the forwarding of the original service message completely, such as time delay, forwarding performance and the like, in the processing process; (2) the method carries comprehensive and accurate OAM information, wherein the comprehensive OAM information can cover the whole process of processing from an input port to an output port of the network equipment, and the accurate OAM information needs to be in a real-time state when the current message is processed. Currently, the INT function is only applicable to a non-stack system, and in the non-stack system, when a service packet is forwarded, a network device modifies a service packet structure in real time and inserts INT information (INT Metadata data), but is not applicable to the stack system.
Disclosure of Invention
The present invention aims to overcome the defects of the prior art and provide a method and a device capable of realizing INT function in a stacking system.
In order to achieve the purpose, the invention provides the following technical scheme: a method of enabling INT information editing in a stacked system, the method comprising:
during service message forwarding, an edge chip is inserted to monitor and store OAM information generated when the current message is forwarded, an OAM data segment is generated according to the OAM information required to be carried by the current message configured by a user, and the OAM data segment is inserted into the current message;
the transmission chip and the edge-out chip monitor and store OAM information generated when the current message is forwarded, acquire the OAM information carried by the current message, calculate and acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded, and replace the corresponding OAM information in the message with the new OAM information.
Preferably, the user configures OAM information to be carried by the current packet in the following manner:
and judging whether the message carries an INT (INT) header, if so, matching an Instruction Bitmap field in the INT header, and configuring OAM (operation administration and maintenance) information required to be carried by the service message according to the Instruction Bitmap field, otherwise, configuring the OAM information required to be carried by the service message through the matching message characteristic field.
Preferably, the OAM data segment is generated as follows:
judging whether a bit corresponding to OAM information required to be carried by the current message is set or not, if so, enabling the OAM information generated when the current message is forwarded to be valid, further generating a corresponding OAM data segment according to the value of the OAM information generated when the current message is forwarded, otherwise, disabling the OAM information generated when the current message is forwarded, and further generating a corresponding OAM data segment according to a preset value.
Preferably, the transmission chip and the edge output core acquire OAM information carried in a current message in the following manner:
and analyzing the INT header in the message to obtain the OAM information carried by the current message.
Preferably, the new OAM information is obtained by:
and taking a value corresponding to OAM information generated during message forwarding as a first numerical value, taking a value corresponding to the OAM information carried by the message as a second numerical value, calculating the value of an expression according to an expression configured by a user, the first numerical value and the second numerical value, and forming new OAM information according to the value of the expression.
Preferably, the expression is:
comparing the first value with the second value, and taking the maximum value of the first value and the second value; or
Comparing the first value with the second value, and taking the minimum value of the first value and the second value; or
Taking the sum of the first numerical value and the second numerical value; or
Directly taking the value of the first numerical value.
The invention also discloses a device for realizing INT information editing in the stacking system, which comprises
The first OAM information collection module is used for enabling the incoming edge chip to monitor and store OAM information generated when the current message is forwarded;
the OAM data segment inserting module is used for enabling the edge inserting chip to generate an OAM data segment according to OAM information which needs to be carried by a user configuration current message and OAM information generated when the current message is forwarded, and to insert the OAM data segment into the current message;
the second OAM information collection module is used for enabling the transmission chip and the edge output chip to monitor and store OAM information generated when the current message is forwarded;
the OAM information generation module is used for enabling the transmission chip and the edge output chip to acquire OAM information carried by the current message, and calculating to acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded;
and the OAM information editing module is used for enabling the transmission chip and the edge output chip to replace the new OAM information with the corresponding OAM information in the message.
Preferably, the OAM data segment insertion module further includes
The judging module is used for judging whether a bit corresponding to OAM information required to be carried by the current message is set or not;
the first OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is valid when a bit position corresponding to the OAM information required to be carried by the current message is set, and further generating a corresponding OAM data segment according to a value of the OAM information generated when the current message is forwarded;
and the second OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is invalid when the bit corresponding to the OAM information required to be carried by the current message is not set, and further generating a corresponding OAM data segment according to a preset value.
Preferably, the OAM information generation module includes
The first numerical value determining module is used for taking a value corresponding to OAM information generated during message forwarding as a first numerical value;
the second numerical value determining module is used for taking a value corresponding to the OAM information carried by the message as a second numerical value;
and the information generation module is used for calculating the value of the expression according to the expression configured by the user, the first numerical value and the second numerical value and forming new OAM information according to the value of the expression.
Preferably, the expression is:
comparing the first value with the second value, and taking the maximum value of the first value and the second value; or
Comparing the first value with the second value, and taking the minimum value of the first value and the second value; or
Taking the sum of the first numerical value and the second numerical value; or
Directly taking the value of the first numerical value.
The invention has the beneficial effects that:
the invention enables the input edge chip to insert the OAM data segment required by the message, and the transmission chip and the output edge chip to update the OAM data segment carried by the message, thereby realizing the INT function in the stacking system.
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FIG. 1 is a schematic flow chart of the method of the present invention;
fig. 2 is a block diagram of the apparatus of the present invention.
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The invention discloses a method and a device for realizing INT information editing In a stacking system, which are characterized In that an OAM data segment required by a message is inserted into an edge chip, and the OAM data segment carried by the message is updated by a transmission chip and an edge chip, so that an INT (In-band Network Telemetry) function, namely an In-band OAM function, is realized In the stacking system.
As shown in fig. 1, a method for implementing INT information editing in a stacking system disclosed in the present invention includes:
during service message forwarding, an edge chip is inserted to monitor and store OAM information generated when the current message is forwarded, an OAM data segment is generated according to the OAM information required to be carried by the current message configured by a user, and the OAM data segment is inserted into the current message;
the transmission chip and the edge-out chip monitor and store OAM information generated when the current message is forwarded, acquire the OAM information carried by the current message, calculate and acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded, and replace the corresponding OAM information in the message with the new OAM information.
Specifically, the stacking system includes an edge entering chip, an edge exiting chip, and at least one transmission chip connected between the edge entering chip and the edge exiting chip, and the edge entering chip, the transmission chip, and the edge exiting chip perform corresponding processing on the service packet. INT Metadata data (INT Metadata) in a service message includes a Ver field (version number), an Instruction Bitmap field, and the like, wherein, the instrumentation Bitmap field is used for marking the specific content of INT Metadata data, each bit in the data selection list corresponds to a data option, for example, the first bit (bit0) corresponds to the end point identification data, the second bit (bit1) corresponds to the number of the physical port and the physical port, the third bit (bit2) corresponds to the time delay, the fourth bit (bit3) corresponds to the queue number and the queue depth, the fifth bit (bit4) corresponds to the physical port timestamp, the sixth bit (bit5) corresponds to the physical port timestamp, the seventh bit (bit6) corresponds to the logical port number and the logical port number, the eighth bit (bit7) corresponds to the bandwidth utilization rate of the port, and the ninth bit (bit8) corresponds to the packet buffer pool number and the buffer pool occupancy rate. An entry timestamp needs to be added to the INT Metadata data when each bit is set, indicating that the corresponding data option needs to be collected into the INT Metadata data, such as when the fifth bit (bit4) is set.
In order to enable the stacking system to support INT functions, after a service message enters an edge chip, the edge chip modifies the structure of the service message, and an OAM data segment, namely INT Metadata data, is inserted into the service message. The processing process of the business message by the edge entering chip is as follows:
the method comprises the steps that an edge entering chip monitors and stores OAM information generated when a current message is forwarded, wherein the OAM information comprises an entering physical port number, an exiting physical port number, an entering physical port timestamp, an exiting physical port timestamp, an entering logical port number, an exiting logical port number, an entering queue number, a depth of an entering queue, a bandwidth utilization rate of an exiting port, a network chip message cache pool number and a network chip cache pool occupancy rate.
And after OAM information generated when the current message is forwarded is acquired, generating an OAM data segment and inserting the OAM data segment into the message according to the OAM information required to be carried by the current message configured by a user. The user configures OAM information to be carried by the current message in the following way: judging whether the message carries an INT (INT) header, if so, matching an Instruction Bitmap field in the INT header, configuring OAM (operation administration and maintenance) information required to be carried by the service message according to the Instruction Bitmap field, namely setting corresponding bits in the Instruction Bitmap field to enable the message to carry corresponding OAM information, and if a fifth bit (bit4) is set, carrying the message into physical port timestamp information; if not, configuring the OAM information category required to be carried by the service message by matching the message characteristic field, for example, determining the OAM information category required to be carried by the service message by matching the message source address and the message destination address, for example, carrying a physical port number and a physical port time stamp, etc.
Further, the OAM data segment is generated by: and filtering the OAM information generated when the current message monitored and stored by the edge chip is forwarded according to the OAM information category required to be carried by the current message configured by the user. If the bit corresponding to the OAM information required to be carried by the current message is set and processed, the OAM information generated when the current message is forwarded is valid, a corresponding OAM data segment is further generated according to the value of the OAM information generated when the current message is forwarded and is inserted into the corresponding position of the message, if the user configures the message and needs to carry a physical port timestamp, a fifth bit (bit4) is set and processed, the physical port timestamp information generated when the current message is forwarded is valid, a corresponding OAM data segment is further generated according to the value of the physical port timestamp generated when the current message is forwarded and is inserted into the corresponding position of the message; if the type of OAM information required to be carried by the current message is not set, the type of OAM information generated when the current message is forwarded is invalid, and further a corresponding OAM data segment is generated according to a preset value, wherein the preset value includes but is not limited to 0xFFFFFFFF, if the message does not need to be carried into a physical port timestamp, a fifth bit (bit4) does not need to be set, and the 0xFFFFFFFF is further used for generating a corresponding OAM data segment and inserting the corresponding OAM data segment into the corresponding position of the message.
Similarly, in order to enable the stacking system to support the INT function, after the service messages enter the transmission chip and the edge-out chip, the OAM data segments carried by the service messages of the transmission chip and the edge-out chip are updated. The processing process of the transmission chip and the edge output chip to the service message is as follows:
the transmission chip and the edge-out chip monitor and store OAM information generated when the current message is forwarded, wherein the OAM information comprises an input physical port number, an output physical port number, an input physical port timestamp, an output physical port timestamp, an input logical port number, an output logical port number, an input queue number, a depth of a queue, a bandwidth utilization rate of an output port, a network chip message cache pool number and a network chip cache pool occupancy rate.
When the OAM information generated during the forwarding of the message is acquired, the OAM information carried in the message is further acquired, and during implementation, the OAM information carried in the message can be acquired by analyzing an INT (INT) header in the message, for example, after the INT header is analyzed, the timestamp information carried in the message into a physical port and the like can be known.
After the OAM information carried by the message is acquired, the OAM information carried by the acquired message and the OAM information generated when the message is forwarded are further calculated to acquire new OAM information, and the new OAM information is used for replacing the corresponding OAM information in the message. Wherein, the new OAM information is obtained by the following method: taking a value corresponding to OAM information generated during forwarding of a message as a first numerical value, taking a value corresponding to the OAM information carried by the message as a second numerical value, and calculating a value of an expression according to an expression configured by a user, wherein the value of the expression is a new numerical value corresponding to the OAM information, namely new OAM information. The user configured expression is: comparing the first value with the second value, and taking the maximum value of the first value and the second value; or comparing the first value with the second value, and taking the minimum value of the first value and the second value; or taking the sum of the first numerical value and the second numerical value; or directly taking the first value as the value of the expression.
As shown in fig. 2, the present invention further discloses a device for implementing INT information editing in a stacking system, which includes a first OAM information collection module, an OAM data segment insertion module, a second OAM information collection module, an OAM information calculation module, and an OAM information editing module, wherein the first OAM information collection module is configured to enable an ingress edge chip to monitor and store OAM information generated when a current packet is forwarded; the OAM data segment inserting module is used for enabling the edge chip to generate an OAM data segment according to OAM information which needs to be carried by a user configuration current message and OAM information generated when the current message is forwarded, and inserting the OAM data segment into the current message; the second OAM information collection module is used for enabling the transmission chip and the edge output chip to monitor and store OAM information generated when the current message is forwarded; the OAM information calculation module is used for enabling the transmission chip and the edge output chip to acquire OAM information carried by a current message, and calculating to acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded; the OAM information editing module is used for enabling the transmission chip and the edge output chip to replace the new OAM information with the corresponding OAM information in the message.
Specifically, in order to enable the stacking system to support the INT function, after a service message enters the edge chip, the edge chip modifies the structure of the service message, and an OAM data segment, that is, INT Metadata data, is inserted into the service message. During implementation, the edge entering chip monitors and stores OAM information generated when the current message is forwarded through the first OAM information collection module, wherein the OAM information comprises an entering physical port number, an exiting physical port number, an entering physical port timestamp, an exiting physical port timestamp, an entering logical port number, an exiting logical port number, an entering queue depth, an exiting port bandwidth utilization rate, a network chip message cache pool number and a network chip cache pool occupancy rate. And further generating and inserting an OAM data end through an OAM data segment inserting module.
Furthermore, the OAM data segment insertion module includes a judgment module, a first OAM data segment generation module, and a second OAM data segment generation module, where the judgment module is configured to judge whether a bit corresponding to OAM information that needs to be carried by a current message is set; the first OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is valid when a bit position corresponding to the OAM information required to be carried by the current message is set, and further generating a corresponding OAM data segment according to a value of the OAM information generated when the current message is forwarded; the second OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is invalid when a bit corresponding to the OAM information required to be carried by the current message is not set, and further generating a corresponding OAM data segment according to a preset value. In the process of generating the OAM data segment, how a user configures OAM information that needs to be carried by a current message and how to generate the OAM data segment are described in detail above, and are not described in detail herein.
Similarly, in order to enable the stacking system to support the INT function, after the service messages enter the transmission chip and the edge-out chip, the OAM data segments carried by the service messages of the transmission chip and the edge-out chip are updated. When the network chip message forwarding method is implemented, the transmission chip and the edge output chip monitor and store OAM information generated when the current message is forwarded through the second OAM information collection module, wherein the OAM information comprises an input physical port number, an output physical port number, an input physical port timestamp, an output physical port timestamp, an input logical port number, an output logical port number, an enqueue serial number, an enqueue depth, an output port bandwidth utilization rate, a network chip message cache pool number and a network chip cache pool occupancy rate. The transmission chip and the edge-out chip further acquire OAM information carried in the message through an OAM information generation module, during implementation, the OAM information carried in the message can be acquired by analyzing an INT head in the message, for example, after the INT head is analyzed, timestamp information and the like carried in a physical port by the message can be known, and after the OAM information carried in the message is acquired, the acquired OAM information carried in the message and the OAM information generated when the message is forwarded are further calculated to acquire new OAM information. Finally, the transmission chip and the edge chip replace the corresponding OAM information in the message by using the new OAM information
Further, the OAM information generating module includes a first numerical value determining module, a second numerical value determining module, and an information generating module, where the first numerical value determining module is configured to use a value corresponding to OAM information generated when the message is forwarded as a first numerical value, the second numerical value determining module is configured to use a value corresponding to OAM information carried in the message as a second numerical value, and the information generating module is configured to calculate a value of an expression according to an expression configured by a user and the first and second numerical values, and form new OAM information according to the value of the expression. The new OAM information is obtained as described above, and is not described in detail herein.
The invention enables the input edge chip to insert the OAM data segment required by the message, and the transmission chip and the output edge chip to update the OAM data segment carried by the message, thereby realizing the INT function in the stacking system.
Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.
Claims (4)
1. A method for implementing INT information editing in a stacking system, the method comprising:
during service message forwarding, an edge chip is inserted to monitor and store OAM information generated when the current message is forwarded, an OAM data segment is generated according to the OAM information required to be carried by the current message configured by a user, and the OAM data segment is inserted into the current message;
the transmission chip and the edge-out chip monitor and store OAM information generated when the current message is forwarded, acquire the OAM information carried by the current message, calculate and acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded, and replace the corresponding OAM information in the message with the new OAM information, wherein,
the OAM data segment is generated as follows:
judging whether a bit corresponding to OAM information required to be carried by a current message is set or not, if so, enabling the OAM information generated when the current message is forwarded to be valid, further generating a corresponding OAM data segment according to the value of the OAM information generated when the current message is forwarded, otherwise, disabling the OAM information generated when the current message is forwarded, and further generating a corresponding OAM data segment according to a preset value;
the new OAM information is obtained by the following steps:
taking a value corresponding to OAM information generated during forwarding of a message as a first numerical value, taking a value corresponding to the OAM information carried by the message as a second numerical value, calculating a value of an expression according to an expression configured by a user, the first numerical value and the second numerical value, and forming new OAM information according to the value of the expression, wherein the expression is as follows:
comparing the first value with the second value, and taking the maximum value of the first value and the second value; or
Comparing the first value with the second value, and taking the minimum value of the first value and the second value; or
Taking the sum of the first numerical value and the second numerical value; or
Directly taking the value of the first numerical value.
2. The method according to claim 1, wherein the user configures the OAM information that needs to be carried by the current packet by:
and judging whether the message carries an INT (INT) header, if so, matching an Instruction Bitmap field in the INT header, and configuring OAM (operation administration and maintenance) information required to be carried by the service message according to the Instruction Bitmap field, otherwise, configuring the OAM information required to be carried by the service message through the information carried by the matching message.
3. The method according to claim 1, wherein the transmission chip and the edge core acquire OAM information carried in the current packet by:
and analyzing the INT header in the message to obtain the OAM information carried by the current message.
4. An apparatus for implementing INT information editing in a stacked system, the apparatus comprising
The first OAM information collection module is used for enabling the incoming edge chip to monitor and store OAM information generated when the current message is forwarded;
the OAM data segment inserting module is used for enabling the edge chip to generate an OAM data segment according to OAM information which needs to be carried by a user configuration current message and OAM information generated when the current message is forwarded, and inserting the OAM data segment into the current message;
the second OAM information collection module is used for enabling the transmission chip and the edge output chip to monitor and store OAM information generated when the current message is forwarded;
the OAM information generation module is used for enabling the transmission chip and the edge output chip to acquire OAM information carried by the current message, and calculating to acquire new OAM information according to the OAM information carried by the current message and the OAM information generated when the current message is forwarded;
an OAM information editing module for enabling the transmission chip and the edge chip to replace the new OAM information with the corresponding OAM information in the message, wherein,
the OAM data segment insertion module further comprises
The judging module is used for judging whether a bit corresponding to OAM information required to be carried by the current message is set or not;
the first OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is valid when a bit position corresponding to the OAM information required to be carried by the current message is set, and further generating a corresponding OAM data segment according to a value of the OAM information generated when the current message is forwarded;
the second OAM data segment generation module is used for determining that the OAM information generated when the current message is forwarded is invalid when a bit corresponding to the OAM information required to be carried by the current message is not set, and further generating a corresponding OAM data segment according to a preset value;
the OAM information generation module comprises
The first numerical value determining module is used for taking a value corresponding to OAM information generated during message forwarding as a first numerical value;
the second numerical value determining module is used for taking a value corresponding to the OAM information carried by the message as a second numerical value;
an information generation module, configured to calculate a value of an expression according to an expression configured by a user, the first numerical value, and the second numerical value, and form new OAM information according to the value of the expression, where the expression is:
comparing the first value with the second value, and taking the maximum value of the first value and the second value; or
Comparing the first value with the second value, and taking the minimum value of the first value and the second value; or
Taking the sum of the first numerical value and the second numerical value; or
Directly taking the value of the first numerical value.
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| 虚拟化堆叠技术研究及实现;钱欢;《电子测试》;20130924(第18期);全文 * |
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