CN111917506A - Flexe low-speed service processing method and device - Google Patents
Flexe low-speed service processing method and device Download PDFInfo
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- CN111917506A CN111917506A CN202010706191.9A CN202010706191A CN111917506A CN 111917506 A CN111917506 A CN 111917506A CN 202010706191 A CN202010706191 A CN 202010706191A CN 111917506 A CN111917506 A CN 111917506A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
Abstract
The invention discloses a Flexe low-speed service processing method and a device, which relate to the field of transmission networks, and the method comprises the following steps: determining the number of time slots required to be divided by a Flexe frame according to the size of the minimum granular service required to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the Flexe frames can be equally divided according to the number of the time slots. And mapping the client service to a time slot of a Flexe frame, and sending out the client service through at least one physical channel. The Flexe low-speed service processing method can meet the requirements of operators on low-speed services, and can avoid the condition of large bandwidth waste.
Description
Technical Field
The invention relates to the field of transmission networks, in particular to a Flexe low-speed service processing method and device.
Background
With the advent of the age of 5G, ethernet technology has further advanced. The network slice is one of key technologies of a 5G bearing scheme, and provides an application foundation for realizing network slicing and ultra-low delay forwarding of different services. FlexE is widely accepted by operators as a core technology for ethernet slicing. FlexE adds Shim layer time slot crossing in the original Ethernet frame structure, thereby greatly reducing the node time delay of the bearing network; meanwhile, the Flexe bandwidth is flexible and adjustable, the binding function of a large port can be realized, and the problem of network bandwidth upgrading in the prior art is effectively solved.
The FlexE protocol uses 5G as the minimum granule for time slot division, does not consider the requirement of an operator for low-speed services, and can only insert a large number of IDLE code blocks into a 66b code stream in order to carry the low-speed services in a 5G time slot, so that a large amount of bandwidth is wasted.
Disclosure of Invention
Aiming at the defects in the prior art, in a first aspect, the invention provides a FlexE low-speed service processing method, which can meet the requirements of operators on low-speed services and can avoid the condition of large bandwidth waste.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a Flexe low-speed service processing method comprises the following steps:
determining the number of time slots of a Flexe frame to be divided according to the size of the minimum granular service to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the Flexe frames can be equally divided according to the number of the time slots;
and mapping the client service to a time slot of a Flexe frame, and sending out the client service through at least one physical channel.
In some embodiments, determining the number of time slots that a FlexE frame needs to be divided according to the size of the minimum granular service that needs to be carried, and performing time slot division on a plurality of consecutive FlexE frames as a whole, so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the plurality of FlexE frames can be equally divided according to the number of the time slots, specifically including:
determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and dividing m continuous FlexE frames into a group of time slots, wherein the value of m is the smallest positive integer which makes m × 20460/n be an integer.
In some embodiments, the FlexE frame includes 20460 payload code blocks and 1 overhead code block, and 8 FlexE frames constitute one FlexE overhead frame, which can describe Client calenar a and Client calenar B of z slots, and
a Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
In some embodiments, the method further comprises:
setting a Flexe extended MFAS overhead by using a Flexe overhead frame reserved field, wherein the value of the Flexe extended MFAS overhead is
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
In some embodiments, the method further comprises:
when the service intercommunication is needed, calculating the number c/b of the time slots to be bound according to the current time slot rate b and the time slot rate c to be intercommunicated;
calculating the distance a/c between two adjacent time slots to be bound according to the transmission rate a of the Flexe instance and the time slot rate c to be communicated;
and c/b time slots with the distance of a/c are bundled for service intercommunication.
In some embodiments, the size of the minimum granular traffic includes 2.5G, 1.25G, 1G, 500M, 100M, 10M, or other granules based on demand.
In a second aspect, the present invention provides a FlexE low-speed service processing apparatus, which can meet the requirements of operators for low-speed services, and can avoid the situation of wasting a large amount of bandwidth.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a Flexe low-speed service processing device comprises:
the time slot dividing module is used for determining the number of time slots of a Flexe frame to be divided according to the size of the minimum granular service to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service and the total number of payload code blocks of the Flexe frames can be equally divided according to the number of the time slots;
and the mapping module is used for mapping the client service to the time slot of the Flexe frame and sending the client service out through at least one physical channel.
In some embodiments, the timeslot division module determines, according to the size of the minimum granular service that needs to be carried, the number of timeslots that a FlexE frame needs to be divided, and performs timeslot division on a plurality of consecutive FlexE frames as a whole, so that each of the divided timeslots can carry one minimum granular service, and the total number of payload code blocks of the plurality of FlexE frames can be equally divided according to the number of the timeslots, specifically including:
determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and dividing m continuous FlexE frames into a group of time slots, wherein the value of m is the smallest positive integer which makes m × 20460/n be an integer.
In some embodiments, the FlexE frame includes 20460 payload code blocks and 1 overhead code block, and 8 FlexE frames constitute one FlexE overhead frame, which can describe Client calenar a and Client calenar B of z slots, and
a Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
In some embodiments, the timeslot dividing module is further configured to:
setting a Flexe extended MFAS overhead by using a Flexe overhead frame reserved field, wherein the value of the Flexe extended MFAS overhead is
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
In some embodiments, the mapping module is further configured to:
when the service intercommunication is needed, calculating the number c/b of the time slots to be bound according to the current time slot rate b and the time slot rate c to be intercommunicated;
calculating the distance a/c between two adjacent time slots to be bound according to the transmission rate a of the Flexe instance and the time slot rate c to be communicated;
and c/b time slots with the distance of a/c are bundled for service intercommunication.
In some embodiments, the size of the minimum granular traffic includes 2.5G, 1.25G, 1G, 500M, 100M, 10M, or other granules based on demand.
Compared with the prior art, the invention has the advantages that:
according to the Flexe low-speed service processing method, the time slot rate of the Flexe frame to be divided is determined according to the size of the minimum particle service to be carried, so that the time slot division is carried out on the Flexe frame, and therefore the bandwidth waste condition does not exist when the low-speed service is carried. Each Flexe instance supports partial or all b G rate time slots to be bundled into 1 cG rate time slot for use, namely, the compatibility of the time slots is realized.
Drawings
Fig. 1 is a flowchart of a FlexE low-speed service processing method in an embodiment of the present invention;
FIG. 2 is a flowchart of step S1 according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a 1G timeslot structure in an embodiment of the present invention;
FIG. 4 is a diagram of a 1.25G timeslot structure in an embodiment of the present invention;
FIG. 5 is a diagram illustrating a structure of a Flexe overhead frame according to an embodiment of the present invention;
fig. 6 is a schematic diagram of different rate slot interleaving according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a method for processing a FlexE low-speed service, where the method includes the following steps:
s1, determining the number of time slots required to be divided of a Flexe frame according to the size of the minimum granular service required to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the plurality of Flexe frames can be equally divided according to the number of the time slots.
And S2, mapping the client service to a time slot of a Flexe frame, and sending out the client service through at least one physical channel.
The existing FlexE protocol uses 5G as the minimum granule for time slot division, and does not consider the requirement of operators for low-speed services. For example, the problem of carrying low-rate traffic such as 10M traffic or GE is not considered, and carrying 10M traffic in a 5G timeslot or carrying 1.25G GE signal in a 5G timeslot will result in very low bandwidth utilization.
In the present embodiment, the timeslot rate of the FlexE frame is determined based on the size of the minimum granular service that needs to be carried, for example, for 10M service, the FlexE frame of the present embodiment is divided by the timeslot rate of 10M. For GE services, the FlexE frame of this embodiment is divided at a timeslot rate of 1.25G, so as to solve the problem of bandwidth utilization.
It is understood that the size of the minimum granular service in this embodiment may be 2.5G, 1.25G, 1G, 500M, 100M or 10M, or other sizes based on the needs of the operator.
In addition, since a FlexE frame includes 20460 payload code blocks and 1 overhead code block, when the FlexE frame is time-slotted according to the minimum granular service that needs to be carried, there is a problem that each position of the time slot of the FlexE instance cannot be equally divided into 20460 positions. For example, referring to fig. 3, when the divided time slot is 1G, taking 100G FlexE instance as an example, 20460 time slots cannot be equally divided into 100 time slots of 1G, and 60 extra 66b blocks are finally generated and cannot be transmitted, and in order to ensure the fixed positions of the time slots, the 60 code blocks are not divided into time slots in a conventional manner, so that a large amount of bandwidth is wasted.
Referring to fig. 2, in order to solve the above problem, as a preferred embodiment, the method adopted in the present embodiment is:
s11, determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
s12, calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and S13, dividing time slots of m continuous FlexE frames as a group, wherein the value of m is the minimum positive integer which enables m to 20460/n to be an integer.
Specifically, if the size of the minimum granular service to be carried is 1G, the timeslot rate b of the FlexE frame to be divided is 1Gbit/s, and if the transmission rate a of the FlexE instance is 100Gbit/s, the number n of timeslots to be divided is 100 a/b, and if m × 20460/n is an integer, it can be known that the minimum value of m is 5, that is, in this embodiment, the timeslots are divided by taking 5 consecutive FlexE frames as a group.
For the sake of understanding, referring to fig. 3, it is known that the time slot corresponding to the boundary of the first FlexE frame is 60, and in order to enable all code blocks to perform time slot division, the second FlexE frame in this embodiment starts from a time slot 61, i.e., the last time slot number of the immediately previous FlexE frame. As can be known from fig. 3, 5 FlexE frames can exactly determine the 1G timeslot boundary by frame, so that a group of 5 FlexE frames is used for dividing the 1G timeslot, so that all code blocks can be divided into timeslots, that is, there is no padding code block that cannot be analyzed by the device in the FlexE frame, thereby avoiding a large amount of bandwidth waste.
Similarly, referring to fig. 4, it can be understood that if the size of the minimum granular service to be carried is 1.25G, the timeslot rate b of the FlexE frame to be divided is 1.25Gbit/s, if the transmission rate a of the FlexE instance is 100Gbit/s, the number n of the timeslots to be divided is 80 a/b, and if m 20460/n is an integer, it can be known that the minimum value of m is 4, that is, at this time, the timeslots are divided by taking 4 consecutive FlexE frames as a group. For the time slot rate and the transmission rate of the FlexE instance under other conditions, the time slot rate and the transmission rate of the FlexE instance may be correspondingly determined according to the above-mentioned manner, which is not described herein again.
In this embodiment, the FlexE frame includes 20460 payload code blocks and 1 overhead code block, and 8 FlexE frames constitute one FlexE overhead frame, and the FlexE overhead frame can describe Client terminal a and Client terminal B of z slots, and
a Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
It is worth mentioning that the existing FlexE overhead multiframes include 32 overhead frames, in this embodiment, since the time slot division is performed on the FlexE frames based on the size of the minimum granular service that needs to be carried, the FlexE overhead multiframes need to be extended, and the extended FlexE extended multiframes will be formed by the minimum granular service that needs to be carried
Or 2tOne FlexE overhead frame.
The Client Calendar a and the Client Calendar B are mainly used for describing a corresponding relationship between a FlexE Client and a time slot, in this embodiment, a FlexE extended MFAS overhead is set by using a reserved field of a FlexE overhead frame, and the value of the FlexE extended MFAS overhead is set as
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
That is, when n timeslots need to be defined and the FlexE overhead frame can describe the Client calenar a and the Client calenar B of z timeslots, at least
A Flexe overhead frame, then the Flexe extended MFAS must have
Value, i.e. 0 &
Every time an overhead frame is transmitted, the Flexe extended MFAS adds 1.
Specifically, when n is 100, 100 slots need to be defined, and if each FlexE overhead frame can describe Client latency a and Client latency B of 1 slot, at least one frame needs to be defined
The FlexE overhead frames form a FlexE extended multiframe, it being understood that in this case 100 is necessarily required, but it is also possible to have more than 100, and for machine languages, a FlexE extended multiframe comprises FlexE overhead frames that are more power-of-2, for example, 27One FlexE extended multiframe is formed of 128 FlexE overhead frames.
Similarly, when n is 100, if each FlexE overhead frame can describe Client calenar a and Client calenar B of 3 slots, thatDo at least need to
The FlexE overhead frames constitute a FlexE extended multiframe, and so on for the rest of the cases, which is not described herein.
As a preferred implementation, referring to FIG. 5, in this embodiment, the Flexe extended MFAS overhead is defined by the reserved field bit17:30 of the 2 nd 66b block of the Flexe overhead frame, in which case it can be satisfied that the Flexe frame is slotted at a rate of 10 Mbit/s.
In addition, based on the consideration of compatibility, for example, to implement compatibility of 5G rate timeslots in the existing FlexE protocol, the present timeslot service is implemented to cross to the 5G timeslot service, and in this embodiment, the present timeslot is mainly bundled to interwork with the timeslot rate supported by the peer device.
In this embodiment, the specific manner is as follows:
according to the current time slot rate b and the time slot rate c to be interworked, the number c/b of the time slots needing to be bundled is calculated, and it can be understood that the time slot rate c needing to be interworked here can be 5Gbit/s or other rates.
And calculating the distance a/c between two adjacent time slots to be bound according to the transmission rate a of the Flexe instance and the time slot rate c to be communicated.
And c/b time slots with the distance of a/c are bundled for service intercommunication.
Taking 50G FlexE instance and 1G timeslot as an example, if interworking with 5G timeslot service is required at this time, it can be known that 5 1G timeslots need to be bundled, and then based on the transmission rate a of the FlexE instance and the timeslot rate c to be interworked, it can be known that the distance between two adjacent timeslots needs to be bundled is 10. Then 5 1G slots at 10 intervals can be bundled for traffic interworking.
The reason for this is that: taking 1G slot i as an example, 1G slot i is located exactly at the 1 st 5G slot i in the FlexE frame, 1G slot i +10 is located exactly at the 2 nd 5G slot i in the FlexE frame, 1G slot i +20 is located exactly at the 3 rd 5G slot i in the FlexE frame, 1G slot i +30 is located exactly at the 4 th 5G slot i in the FlexE frame, and 1G slot i +40 is located exactly at the 5 th 5G slot i in the FlexE frame.
That is, in practical applications, the FlexE network device on the transmitting side transmits traffic using the bound 1G slots i, i +10, i +20, i +30, i +40, slots j, j +10, j +20, j +30, j +40, slots p, p +10, p +20, p +30, p +40, slots q, q +10, q +20, q +30, q +40, and the FlexE network device is configured on the receiving side to demap traffic from the 5G slots i, j, p, q.
It is worth pointing out that, in this embodiment, part or all of the 1G slots are supported to be bound into 5G slots, that is, different rate slots are supported to coexist in the same FlexE instance.
The following is further described by way of a specific example:
referring to fig. 6, to implement that the bG timeslot bearer service crosses to the cG timeslot bearer service and the cG timeslot bearer service crosses to the bG timeslot bearer service:
firstly, a receiving side physical layer interface # 1-m 1 of a Flexe network device A is configured to work in a bG rate time slot mode, and a sending side physical layer interface # 1-m 2 works in a bG rate time slot binding mode (namely cG time slot).
And then configuring the physical layer interfaces # 1 to m3 of the receiving side of the Flexe network equipment C to work in a bG rate time slot binding mode, and the physical layer interfaces # 1 to m4 of the transmitting side to work in the bG rate time slot mode.
After the Flexe network equipment A finishes time slot division, bG time slot Flexe instance is extracted from physical layer interfaces # 1-m 1, and a Shim layer receiving circuit finishes demapping the client service from the bG time slot Flexe instance.
The Shim layer receiving circuit of the FlexE network device a crosses the client traffic of the receiving side to the client traffic of the transmitting side and adapts to the rate of the client traffic of the transmitting side.
A Shim layer transmitting circuit of the Flexe network equipment A binds bG time slots into cG time slots, then the Flexe network equipment A maps client services into the bound cG time slots, then the Flexe instance is mapped to transmitting sides of physical layer interfaces # 1 to m2, and the transmitting sides are output to physical layer interfaces # 1 to m2 of the Flexe network equipment B.
The Flexe network equipment B sends Flexe data to physical layer interfaces # 1-m 3 of the Flexe network equipment C through the physical layer interfaces # 1-m 3, after the Flexe network equipment C finishes time slot division, bG time slots are bound into cG time slots, then the Flexe network equipment C extracts the cG time slot Flexe instance from the physical layer interfaces # 1-m 3, and a Shim layer receiving circuit finishes demapping client services from the cG time slot Flexe instance.
A Shim layer circuit of the Flexe network equipment C crosses a receiving side Flexe client to a sending side Flexe client and adapts to the rate of the sending side Flexe client;
the FlexE network device C Shim layer sending circuit maps the client service into the bG time slot, and then the FlexE network device C maps the FlexE instance to the sending side of the physical layer interfaces # 1 to m 4.
It is understood that the cG slot in the above may be a 5G slot.
The embodiment of the invention also provides a Flexe low-speed service processing device which comprises a time slot dividing module and a mapping module.
The time slot dividing module is used for determining the number of time slots of the Flexe frame to be divided according to the size of the minimum granular service to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole, so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the plurality of Flexe frames can be equally divided according to the number of the time slots.
And the mapping module is used for mapping the client service to the time slot of the Flexe frame and sending the client service out through at least one physical channel.
Further, the timeslot division module determines the number of timeslots to be divided by a FlexE frame according to the size of the minimum granular service to be carried, and performs timeslot division on a plurality of consecutive FlexE frames as a whole, so that each of the divided timeslots can carry one minimum granular service, and the total number of payload code blocks of the plurality of FlexE frames can be equally divided by the number of the timeslots, specifically including:
determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and dividing m continuous FlexE frames into a group of time slots, wherein the value of m is the smallest positive integer which makes m × 20460/n be an integer.
Further, the FlexE frame includes 20460 payload code blocks and 1 overhead code block, and 8 FlexE frames constitute one FlexE overhead frame, and the FlexE overhead frame can describe Client terminal a and Client terminal B of z time slots, and
a Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
Further, the timeslot dividing module is further configured to:
setting the Flexe extended MFAS overhead by using the reserved field of the Flexe overhead frame, wherein the value of the Flexe extended MFAS overhead is
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
Further, the mapping module is further configured to:
when the service intercommunication is needed, calculating the number c/b of the time slots to be bound according to the current time slot rate b and the time slot rate c to be intercommunicated;
calculating the distance a/c between two adjacent time slots to be bound according to the transmission rate a of the Flexe instance and the time slot rate c to be communicated;
and c/b time slots with the distance of a/c are bundled for service intercommunication.
Further, the size of the smallest particle traffic includes 2.5G, 1.25G, 1G, 500M, 100M, 10M or other particles based on demand.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. A Flexe low-speed service processing method is characterized by comprising the following steps:
determining the number of time slots of a Flexe frame to be divided according to the size of the minimum granular service to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the Flexe frames can be equally divided according to the number of the time slots;
and mapping the client service to a time slot of a Flexe frame, and sending out the client service through at least one physical channel.
2. The FlexE low-speed service processing method according to claim 1, characterized in that: determining the number of time slots required to be divided by a FlexE frame according to the size of the minimum granular service required to be carried, and carrying out time slot division on a plurality of continuous FlexE frames as a whole, so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the FlexE frames can be equally divided according to the number of the time slots, and the method specifically comprises the following steps:
determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and dividing m continuous FlexE frames into a group of time slots, wherein the value of m is the smallest positive integer which makes m × 20460/n be an integer.
3. The FlexE low-speed traffic processing method according to claim 2, characterized in that: the Flexe frame comprises 20460 payload code blocks and 1 overhead code block, 8 Flexe frames form one Flexe overhead frame, and the Flexe overhead frame can describe Client Call A and Client Call B of z time slots and can describe the Client Call A and the Client Call B of z time slots
A Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
4. The Flexe low-speed traffic processing method according to claim 3, wherein said method further comprises:
setting a Flexe extended MFAS overhead by using a Flexe overhead frame reserved field, wherein the value of the Flexe extended MFAS overhead is
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
5. The FlexE low-speed traffic processing method according to claim 2, characterized in that it further comprises:
when the service intercommunication is needed, calculating the number c/b of the time slots to be bound according to the current time slot rate b and the time slot rate c to be intercommunicated;
calculating the distance a/c between two adjacent time slots to be bound according to the transmission rate a of the Flexe instance and the time slot rate c to be communicated;
and c/b time slots with the distance of a/c are bundled for service intercommunication.
6. The FlexE low-speed traffic processing method according to claim 1, wherein the size of the minimum grain traffic comprises 2.5G, 1.25G, 1G, 500M, 100M, 10M or other grains based on demand.
7. A Flexe low-speed service processing device, comprising:
the time slot dividing module is used for determining the number of time slots of a Flexe frame to be divided according to the size of the minimum granular service to be carried, and carrying out time slot division on a plurality of continuous Flexe frames as a whole so that each divided time slot can carry one minimum granular service and the total number of payload code blocks of the Flexe frames can be equally divided according to the number of the time slots;
and the mapping module is used for mapping the client service to the time slot of the Flexe frame and sending the client service out through at least one physical channel.
8. Flexe low-speed traffic processing device according to claim 7, characterized in that: the time slot dividing module determines the number of time slots required to be divided by a FlexE frame according to the size of the minimum granular service required to be carried, and performs time slot division on a plurality of continuous FlexE frames as a whole, so that each divided time slot can carry one minimum granular service, and the total number of payload code blocks of the FlexE frames can be equally divided according to the number of the time slots, and specifically comprises:
determining the time slot rate b of a Flexe frame to be divided according to the size of the minimum granular service to be borne;
calculating the number n of time slots required to be divided of each Flexe frame, which is a/b, according to the transmission rate a of the Flexe instance and the time slot rate b of the Flexe frame, wherein n is a positive integer;
and dividing m continuous FlexE frames into a group of time slots, wherein the value of m is the smallest positive integer which makes m × 20460/n be an integer.
9. The FlexE low-speed traffic processing method according to claim 8, characterized in that: the Flexe frame comprises 20460 payload code blocks and 1 overhead code block, 8 Flexe frames form one Flexe overhead frame, and the Flexe overhead frame can describe Client Call A and Client Call B of z time slots and can describe the Client Call A and the Client Call B of z time slots
A Flexe overhead frame or 2tThe FlexE overhead frames constitute a FlexE extended multiframe, where z is a positive integer,
meaning rounding up, t is taken to a value of 2tIs greater than
And is closest to
Is a positive integer of (1).
10. The FlexE low-speed traffic processing device of claim 9, wherein the time slot partitioning module is further configured to:
setting a Flexe extended MFAS overhead by using a Flexe overhead frame reserved field, wherein the value of the Flexe extended MFAS overhead is
When the FlexE extended MFAS is equal to k, the Client terminal a and the Client terminal B are used to describe the channel numbers of the Client services carried by the time slots zk +1 to z (k +1), where the channel numbers are the same as the channel numbers of the Client services carried by the time slots zk +1 to z (k +1)
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| CN202010706191.9A CN111917506B (en) | 2020-07-21 | 2020-07-21 | Flexe low-speed service processing method and device |
| BR112022025975A BR112022025975A2 (en) | 2020-07-21 | 2021-01-08 | FLEXE LOW SPEED SERVICE PROCESSING METHOD AND DEVICE |
| PCT/CN2021/070735 WO2022016831A1 (en) | 2020-07-21 | 2021-01-08 | Method and device for flexe low-speed service processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016831A1 (en) * | 2020-07-21 | 2022-01-27 | 烽火通信科技股份有限公司 | Method and device for flexe low-speed service processing |
| CN115276905A (en) * | 2022-07-22 | 2022-11-01 | 南京南瑞信息通信科技有限公司 | Small bandwidth service transmission method based on Flexe transmission system |
| CN115499085A (en) * | 2022-11-17 | 2022-12-20 | 之江实验室 | Flexible Ethernet small-particle time slot allocation method and device |
| WO2022267882A1 (en) * | 2021-06-21 | 2022-12-29 | 中兴通讯股份有限公司 | Service processing method and service processing device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116996418A (en) * | 2022-04-26 | 2023-11-03 | 华为技术有限公司 | Message processing method and device |
| CN117354159A (en) * | 2022-06-28 | 2024-01-05 | 中兴通讯股份有限公司 | Slicing method, service processing method, communication node and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030048813A1 (en) * | 2001-09-05 | 2003-03-13 | Optix Networks Inc. | Method for mapping and multiplexing constant bit rate signals into an optical transport network frame |
| CN107888516A (en) * | 2016-09-29 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of method, apparatus and system of bearer service |
| CN108632886A (en) * | 2017-03-21 | 2018-10-09 | 华为技术有限公司 | A kind of method for processing business and device |
| CN110266612A (en) * | 2018-03-12 | 2019-09-20 | 中兴通讯股份有限公司 | Data transmission method and device, the network equipment and storage medium |
| CN111107641A (en) * | 2019-12-11 | 2020-05-05 | Ut斯达康通讯有限公司 | Flexe service processing method and device and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511022A (en) * | 2019-01-31 | 2020-08-07 | 中兴通讯股份有限公司 | Method, device and system for transmitting customer service |
| CN111917506B (en) * | 2020-07-21 | 2021-07-20 | 烽火通信科技股份有限公司 | Flexe low-speed service processing method and device |
-
2020
- 2020-07-21 CN CN202010706191.9A patent/CN111917506B/en active Active
-
2021
- 2021-01-08 WO PCT/CN2021/070735 patent/WO2022016831A1/en active Application Filing
- 2021-01-08 BR BR112022025975A patent/BR112022025975A2/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030048813A1 (en) * | 2001-09-05 | 2003-03-13 | Optix Networks Inc. | Method for mapping and multiplexing constant bit rate signals into an optical transport network frame |
| CN107888516A (en) * | 2016-09-29 | 2018-04-06 | 中兴通讯股份有限公司 | A kind of method, apparatus and system of bearer service |
| CN108632886A (en) * | 2017-03-21 | 2018-10-09 | 华为技术有限公司 | A kind of method for processing business and device |
| CN110266612A (en) * | 2018-03-12 | 2019-09-20 | 中兴通讯股份有限公司 | Data transmission method and device, the network equipment and storage medium |
| CN111107641A (en) * | 2019-12-11 | 2020-05-05 | Ut斯达康通讯有限公司 | Flexe service processing method and device and electronic equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016831A1 (en) * | 2020-07-21 | 2022-01-27 | 烽火通信科技股份有限公司 | Method and device for flexe low-speed service processing |
| WO2022267882A1 (en) * | 2021-06-21 | 2022-12-29 | 中兴通讯股份有限公司 | Service processing method and service processing device |
| CN115276905A (en) * | 2022-07-22 | 2022-11-01 | 南京南瑞信息通信科技有限公司 | Small bandwidth service transmission method based on Flexe transmission system |
| CN115276905B (en) * | 2022-07-22 | 2024-02-13 | 南京南瑞信息通信科技有限公司 | Small bandwidth service transmission method based on FlexE transmission system |
| CN115499085A (en) * | 2022-11-17 | 2022-12-20 | 之江实验室 | Flexible Ethernet small-particle time slot allocation method and device |
Also Published As
| Publication number | Publication date |
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| BR112022025975A2 (en) | 2023-01-31 |
| WO2022016831A1 (en) | 2022-01-27 |
| CN111917506B (en) | 2021-07-20 |
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