CN108111432A - Message forwarding method and device - Google Patents
Message forwarding method and device Download PDFInfo
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- CN108111432A CN108111432A CN201711476340.1A CN201711476340A CN108111432A CN 108111432 A CN108111432 A CN 108111432A CN 201711476340 A CN201711476340 A CN 201711476340A CN 108111432 A CN108111432 A CN 108111432A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
- H04L47/628—Queue scheduling characterised by scheduling criteria for service slots or service orders based on packet size, e.g. shortest packet first
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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
Abstract
The present embodiments relate to a kind of message forwarding method and device, including：Obtaining includes the first data message with interior telemetry network INT information fields and first flag；According to INT information fields, statistical information corresponding with INT information fields is obtained, and statistical information is stored in INT information fields, obtains the second data message；According to first flag, replication processes are carried out to the second data message, obtain the 3rd data message；Second data message is sent to software defined network SDN controllers, so that SDN controllers determine to be used for transmission the transmission path of data message according to the second data message；When the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to the next-hop network equipment of the network equipment, so that next-hop network equipment performs the 3rd data message the step identical with the network equipment.The message forwarding method and device that there is provided according to embodiments of the present invention can improve the treatment effeciency of SDN controllers.
Description
Technical field
The present invention relates to network technique field more particularly to a kind of message forwarding methods and device.
Background technology
Band network telemetering (English：Inband Network Telemetry, referred to as：INT) it is a kind of new network
Management framework.The participation of the control plane of the network equipment can be not required in the network structure, only put down by the data of the network equipment
Face is the state for collecting and reporting network.However, in software defined network (English：Software Defined Network,
Referred to as：SDN in), except the collection to network state, the also demand there are longest path detection.
In the architecture model of INT, transmission link is formed between node device two-by-two.Multistage transmission link composition data
Transmission path.In a transmission path, including INT first nodes, INT transfers hop node and INT tail nodes.INT first nodes (INT
Source) i.e. source network device is responsible for specific data message addition INT heads and INT Monitoring instructions, to obtain INT reports
Text.INT transfers hop node (INT Transit Hop) i.e. intermediary network device receives INT messages, performs above-mentioned Monitoring instruction.
INT Transit Hop in INT messages (or end) add specify information.INT tail nodes (INT Sink) i.e. purpose network
Equipment receives INT messages, by above-mentioned INT message up sending to SDN controllers, so that SDN controllers can carry out data traffic
And the analysis in path.But if data plane has message dropping, INT Sink is caused not receive INT source
The INT messages sent.SDN controllers can not realizing route monitoring, the architecture model of current INT lacks longest path detection
Function.
Based on the above problem, SDN controllers can indicate above-mentioned INT equipment (INT source, INT Transit Hop,
And INT Sink) INT messages are sent on SDN controllers.The equipment for the last one above-mentioned INT message that SDN controllers receive
The farthest equipment that data message can transmit is regarded as, longest path is determined with this.
But since the data message of data plane is numerous, a large amount of INT messages sent in said program in INT equipment can account for
With the substantial amounts of resource of SDN controllers, and then the treatment effeciency of SDN controllers can be influenced.
The content of the invention
In view of this, the present invention proposes a kind of message forwarding method and device, to reduce the network equipment to SDN controllers
The message amount of upper hair reduces the resource occupation to SDN controllers, improves the treatment effeciency of SDN controllers.
In a first aspect, the present invention provides a kind of message forwarding method, applied to the network equipment, the described method includes：
The first data message is obtained, first data message is included with interior telemetry network INT information fields and first flag；
According to the INT information fields, statistical information corresponding with the INT information fields is obtained, and by the statistics
Information is stored in the INT information fields, obtains the second data message；
According to the first flag, replication processes are carried out to second data message, obtain the 3rd data message；
Second data message is sent to software defined network SDN controllers, so that the SDN controllers are according to institute
The second data message is stated, determines to be used for transmission the transmission path of data message；
When the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to the network and is set
Standby next-hop network equipment, so that the next-hop network equipment performs and the network equipment the 3rd data message
Identical step.
With reference to first aspect, in the first possible implementation, when the network equipment is source network device, institute
It states and obtains the first data message, including：
Receive the tracking indication information that the SDN controllers issue；
According to the tracking indication information, target data message is determined from multiple data messages；
The target data message is replicated, and is added in the INT information fields of the target data message of duplication
One mark obtains tracking message；
The tracking message is determined as first data message.
The possible realization method of with reference to first aspect the first, in second of realization method, the method further includes：
The target data message is sent to the next-hop network equipment of the network equipment.
The possible realization method of with reference to first aspect the first, in the 3rd possible realization method, the tracking refers to
Show that information includes：The identification information of target data message and the frequency reproduction replicated to the target data message,
It is described that target data message is determined from multiple data messages according to the tracking indication information, including：
According to the identification information and the frequency reproduction, determined from multiple data messages and the identification information
The data message matched somebody with somebody is as the target data message.
The third possible realization method with reference to first aspect, in the 4th kind of possible realization method, the tracking
Indication information further includes：Tracking starts identification information；
Before the duplication target data message, the method further includes：
Identify that the tracking starts whether identification information is second identifier；
If it is second identifier that the tracking, which starts identification information, the target data message is replicated.
In second aspect, the present invention provides a kind of apparatus for forwarding message, and applied to the network equipment, described device includes：
First acquisition module, for obtaining the first data message, first data message is included with interior telemetry network INT
Information field and first flag；
Second acquisition module, for according to the INT information fields, obtaining statistics corresponding with the INT information fields
Information, and the statistical information is stored in the INT information fields, obtain the second data message；
Processing module, for according to the first flag, carrying out replication processes to second data message, obtaining the 3rd
Data message；
Determining module, for second data message to be sent to software defined network SDN controllers, so that described
SDN controllers determine to be used for transmission the transmission path of data message according to second data message；
First sending module, for when the network equipment is there are during the next-hop network equipment, by the 3rd datagram
Text is sent to the next-hop network equipment of the network equipment, so that the next-hop network equipment is to the 3rd data message
Perform the step identical with the network equipment.
With reference to first aspect, in the first possible implementation, when the network equipment is source network device, institute
The first acquisition module is stated, including：
Receiving submodule, for receiving the tracking indication information that the SDN controllers issue；
First determination sub-module, for according to the tracking indication information, target data to be determined from multiple data messages
Message；
Submodule is replicated, for replicating the target data message, and the INT letters of the target data message in duplication
First flag is added in breath field, obtains tracking message；
Second determination sub-module, for the tracking message to be determined as first data message.
The possible realization method of with reference to first aspect the first, in second of realization method, described device further includes：
Second sending module, for sending the target data message to the next-hop network equipment of the network equipment.
The possible realization method of with reference to first aspect the first, in the 3rd possible realization method, the tracking refers to
Show that information includes：The identification information of target data message and the frequency reproduction replicated to the target data message；
First determination sub-module is additionally operable to according to the identification information and the frequency reproduction, from multiple datagrams
It is determined in text with the data message of the identification information match as the target data message.
The third possible realization method with reference to first aspect, in the 4th kind of possible realization method,
The tracking indication information further includes：Tracking starts identification information；Described device further includes：
Identification module, for identifying that the tracking starts whether identification information is second identifier；
Replication module if it is second identifier to start identification information for the tracking, replicates the target data report
Text.
So, the network equipment is after the first data message is received, the first mark included according to the first data message
Know and determine the first data message for tracking message.System is added in the INT information fields that the network equipment includes in the first data message
Meter information obtains the second data message, and the second data message is replicated, and obtains the 3rd data message.The network equipment is sent
Second data message forwards the 3rd data message to the next-hop network equipment of the network equipment to SDN controllers.
Due to sent out in the embodiment of the present invention on SDN controllers be have first flag tracking message and not be net
Whole data messages that network equipment receives, so a kind of message forwarding method and device according to embodiments of the present invention is being visited
When surveying the longest path of data message transmission, the message amount sent out on SDN controllers can be reduced, further improves SDN
The treatment effeciency of controller.
According to below with reference to the accompanying drawings becoming to detailed description of illustrative embodiments, other feature of the invention and aspect
It is clear.
Description of the drawings
Comprising in the description and the attached drawing of a part for constitution instruction and specification together illustrate the present invention's
Exemplary embodiment, feature and aspect, and principle for explaining the present invention.
Fig. 1 shows the flow chart of message forwarding method according to an embodiment of the invention.
Fig. 2 shows the flow chart of message forwarding method according to an embodiment of the invention.
Fig. 3 shows the flow chart of message forwarding method according to an embodiment of the invention.
Fig. 4 shows one illustrative message forwarding schematic diagram of the present invention.
Fig. 5 shows the structure diagram of apparatus for forwarding message according to an embodiment of the invention.
Fig. 6 shows the structure diagram of apparatus for forwarding message according to an embodiment of the invention.
Fig. 7 is the hardware block diagram according to a kind of apparatus for forwarding message shown in an exemplary embodiment.
Specific embodiment
Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing
Reference numeral represent functionally the same or similar element.Although the various aspects of embodiment are shown in the drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below.
It will be appreciated by those skilled in the art that without some details, the present invention can equally be implemented.In some instances, for
Method well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight the purport of the present invention.
In order to solve SDN controllers when carrying out the longest path of probe transmission data message, data message quantity is received
It is more, the problem of causing resource occupation excessive, influence the treatment effeciency of SDN controllers.In the embodiment of the present invention, the network equipment is connecing
Target data message is determined in the data message of receipts, and first flag is added in target data message, obtains tracking message.When
There are during the next-hop network equipment, the forwarding of the down hop network equipment tracks message.So so that the network on whole path is set
It is standby by first flag recognition and tracking message, to send tracking message to SDN controllers so that SDN controllers can according to
Track message is transmitted the detection of the longest path of data message.The embodiment of the present invention can reduce the network equipment and be controlled to SDN
The data message quantity sent out on device can reduce the occupancy to SDN controller resources, improve the treatment effeciency of SDN controllers.
Fig. 1 shows the flow chart of message forwarding method according to an embodiment of the invention, and this method can be applied to network
Equipment.The network equipment can be specially VTEP equipment or interchanger (SW) or gateway etc..As shown in Figure 1, this method can wrap
Include following steps：
Step 101 obtains the first data message, and first data message is included with interior telemetry network INT information fields
And first flag.
Specifically, the first data message can be that the upper hop network equipment of the network equipment is forwarded to the data of the network equipment
Message or the first data message can be from the virtual machine with network device communications and be with the addition of first through the network equipment
Data message after mark.
Wherein, first flag is to identify the identification information that the first data message is tracking message.INT information fields can be used
In specify current network device information to be counted (such as：Bandwidth, delay, packet loss etc.).
For example, the mark of information to be counted can be included in INT information fields, so that the network equipment can basis
Above-mentioned mark determines corresponding statistical information.
Further, if the network equipment is source network device, which refers to for source network device according to tracking
Show information generation.The tracking indication information is issued to the network equipment for SDN controllers, to indicate network equipment generation tracking report
Text and on give the tracking message to the information of SDN controllers.
For example, the Internet protocol (English that mark data stream is carried in indication information is tracked：Internet
Protocol, referred to as：IP) information, Virtual Private Network (English：Virtual Private Network, referred to as：VPN) identify
And tenant identification.The network equipment be source network device when, the network equipment determine tenant identification, VPN mark and IP information with
The data message that tenant identification, VPN indicated by track indication information identify and IP information is consistent, the network equipment is in the datagram
First flag is added in text, to generate tracking message.
Step 102, according to the INT information fields, obtain statistical information corresponding with the INT information fields, and general
The statistical information is stored in the INT information fields, obtains the second data message.
Specifically, the network equipment determines according to INT information fields and obtains corresponding statistical information.
Such as：Above-mentioned INT information fields instruction network equipment statistics bandwidth information, then the network equipment is to the band that currently occupies
Width is counted, and the bandwidth information that statistics is obtained is added in above-mentioned INT information fields, to obtain the second data message.
Step 103, according to the first flag, replication processes are carried out to second data message, obtain the 3rd data
Message.
Second data message is sent to software defined network SDN controllers by step 104, so that the SDN is controlled
Device determines to be used for transmission the transmission path of data message according to second data message.
Specifically, in the embodiment of the present invention, the first data message carries first flag, and the network equipment determines first data
Message is tracking message.Information to be counted is stored in INT information fields in the network equipment, after obtaining the second data message, net
Network device replication second data message, obtains the 3rd data message.
The network equipment is by the second data message forwarding to SDN controllers, so that SDN controllers can be according to reception should
Second data message determines to be used for transmission the transmission path of data message.
For example, after SDN controllers receive the second data message from network equipment A, determine to be used for transmission data
The transmission path of message passes through network equipment A.Next, if SDN controllers receive the second number from network equipment B again
After message, determine that the transmission path for being used for transmission data message also passes through network equipment B.
Step 105, when the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to institute
State the next-hop network equipment of the network equipment so that the next-hop network equipment to second data message perform with it is described
The identical step of the network equipment.
Specifically, in the network equipment there are during the next-hop network equipment, the 3rd data message is sent to net by the network equipment
The next-hop network equipment of network equipment.The next-hop network equipment receives the 3rd data message, statistical information is added to above-mentioned
In INT information fields, the 4th data message is obtained.First flag of the next-hop network equipment in the 3rd data message, it is multiple
The 4th data message is made, and the 4th data message after duplication is sent to SDN controllers, meanwhile, the 4th data message is turned
It is sent to next-hop network equipment.
In other words, if next-hop network equipment is the non-purpose network equipment, step 101- steps 105 are performed again.
If next-hop network equipment is the purpose network equipment, the purpose network equipment is in the 4th data message of reception
Corresponding statistical information is added, the 5th data message is obtained, and the 5th data message is sent to SDN controllers.Purpose network
Equipment no longer performs the process for replicating the 5th data message and the 5th data message being forwarded to the jump network equipment once.
In fact, since the second data message and the 3rd data message are identical message, therefore the network equipment can also will
3rd data message is sent to SDN controllers, by the next-hop network equipment of the second data message forwarding to the network equipment, this hair
Bright embodiment does not limit this.So, the network equipment is after the first data message is received, according to the first data message
Including first flag determine the first data message for tracking message.The INT information that the network equipment includes in the first data message
Addition statistical information obtains the second data message in field, and the second data message is replicated, and obtains the 3rd data message.
The network equipment sends the second data message to SDN controllers, and the next-hop network of the 3rd data message to the network equipment of forwarding is set
It is standby.
In the embodiment of the present invention, the first data message, the second data message, the 3rd data message, the 4th data message with
And the 5th data message be carry out VXLAN tunnel encapsulations after message.
It is understood that when the network equipment is source network device, the virtual machine that source network device receives connection is sent
Initial data message.After source network device determines initial data message for tracking message, to initial data message addition the
One mark, and VXLAN tunnel encapsulations are carried out, obtain the first data message.First data message is passed through VXLAN by source network device
Tunnel is sent to next-hop network equipment.
When the network equipment is the purpose network equipment, the purpose network equipment receives the 4th of upper hop network equipment transmission
Data message.The purpose network equipment adds corresponding statistical information in the 4th data message, obtains the 5th data message, by
Five data messages are sent to SDN controllers.Meanwhile the purpose network equipment carries out VXLAN tunnel decapsulations to the 4th data message,
Initial data message is obtained, and initial data message is sent to the virtual machine of connection.
Due to sent out in the embodiment of the present invention on SDN controllers be have first flag tracking message and not be net
Whole data messages that network equipment receives, so a kind of message forwarding method and device according to embodiments of the present invention is being visited
When surveying the longest path of data message transmission, the message amount sent out on SDN controllers can be reduced, further improves SDN
The treatment effeciency of controller.
Fig. 2 shows the flow chart of message forwarding method according to an embodiment of the invention.Wherein, in Fig. 2 step 204 to step
Rapid 207 is identical to step 105 with step 102 in previous embodiment, and details are not described herein for the embodiment of the present invention.
In a kind of possible realization method, with reference to Fig. 2, when the network equipment is source network device, the above method includes
Following steps.
Step 201 receives the tracking indication information that the SDN controllers issue.
Specifically, track indication information and be issued to the network equipment for SDN controllers, to indicate network equipment generation tracking report
Text and on give the tracking message to the information of SDN controllers.
For example, SDN controllers can in the form of flow table and/or information command, to the network equipment issue it is above-mentioned with
Track indication information.
Step 202, according to the tracking indication information, target data message is determined from multiple data messages.
Specifically, the network equipment determines target data according to tracking indication information from multiple data messages of reception
Message.
Such as：The IP information (source IP and destination IP) of mark data stream and VPN marks are carried in above-mentioned tracking indication information.
The network equipment determines that IP information and VPN marks identify consistent number with IP information indicated in tracking indication information and VPN
It is target data message according to message.
Again for example：Track the IP information that mark data stream is carried in indication information, VPN marks and tenant identification.Network is set
Standby definite tenant identification, VPN marks and IP information are believed with tenant identification indicated in tracking indication information, VPN marks and IP
Consistent data message is ceased for target data message.
For another example can also carry frequency reproduction in tracking indication information, which determines target for the network equipment
The frequency of data message.For example, when frequency reproduction is 1/second, represent that the network equipment can be in the datagram of reception every 1s
A target data message is determined in text.That is, the network equipment determined specified tenant's (tenant identification every one second
Corresponding tenant) and an IP information in VPN and tracking indication information in indicated identical tenant (tenant identification institute
Corresponding tenant) and VPN in the consistent data message of IP information be target data message.
Step 203 replicates the target data message, and the INT information fields of the target data message in duplication
Middle addition first flag obtains tracking message.
The tracking message is determined as first data message by step 204.
Specifically, the network equipment replicates target data message, and is added in the INT information fields of the object message of duplication
First flag obtains tracking message.The network equipment determines that the tracking message is the first data message.
Wherein, first flag be for identification message be track message mark.The mark can be the extension of INT messages
Mark shows that the INT messages detect for the tracking in path when the extension flag set.
Step 205, according to the INT information fields, obtain statistical information corresponding with the INT information fields, and general
The statistical information is stored in the INT information fields, obtains the second data message.
Step 206, according to the first flag, replication processes are carried out to second data message, obtain the 3rd data
Message.
Second data message is sent to software defined network SDN controllers by step 207, so that the SDN is controlled
Device determines to be used for transmission the transmission path of data message according to second data message.
Step 208, when the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to institute
State the next-hop network equipment of the network equipment so that the next-hop network equipment to the 3rd data message perform with it is described
The identical step of the network equipment.
Optionally, in a kind of possible realization method, the above method can also include：
The network equipment sends the target data message to the next-hop network equipment of the network equipment.
Specifically, the network equipment sends the 3rd data message (tracking message) to the next-hop network equipment of the network equipment
Meanwhile also the down hop network equipment sends target data message.
After next-hop network equipment receives the 3rd data message and target data message, the in the 3rd data message
One identifies the 3rd data message for tracking message.In the INT fields of the 3rd data message and target data message
After adding statistical information, above-mentioned the 3rd data message for being with the addition of statistical information is replicated, the 3rd number of statistical information will be with the addition of
According to message up sending to SDN controllers.
Meanwhile next-hop network equipment carries out target data message normal forward process, and when there are next-hop nets
During network equipment, the 3rd data message of duplication is forwarded to.
So, the tracking indication information that the network equipment is issued according to SDN controllers determines target data message, and right
Target data message is replicated.The network equipment adds first flag in the target data message of duplication, obtains tracking message,
The all-network equipment in network allow according to first flag recognition and tracking message, and on tracking message is sent to control to SDN
Device.
Since what is sent out in the embodiment of the present invention on SDN controllers is tracking message, and tracking message is referred to according to tracking
Show the target data message generation that information determines in data message, so a kind of message forwarding according to embodiments of the present invention
Method in the longest path of probe transmission data message, can reduce the message amount sent out on SDN controllers, further
Raising SDN controllers treatment effeciency.
Fig. 3 shows the flow chart of message forwarding method according to an embodiment of the invention, wherein step 301 and step 303
Similar to step 208 with abovementioned steps 201 and step 203 respectively to step 308, details are not described herein for the embodiment of the present invention.
In a kind of possible realization method, above-mentioned tracking indication information can include：The mark letter of target data message
It ceases and to the frequency reproduction that the target data message is replicated, with reference to Fig. 3, the above method may comprise steps of：
Step 301 receives the tracking indication information that the SDN controllers issue.
Step 302, according to the identification information and the frequency reproduction, determined from multiple data messages and the mark
The data message of information matches is known as the target data message.
Wherein, the identification information of target data message can identify a data flow.Above-mentioned identification information can include source
IP address and purpose IP address, VPN marks and tenant identification.Frequency reproduction determines the frequency of target data message for the network equipment
Rate.For example, when frequency reproduction is 1/second, represent that the network equipment can determine one every 1s in multiple data messages of reception
Target data message.
For example, the network equipment can determine time interval and message number, time interval according to above-mentioned frequency reproduction
To determine the time interval of target data message, message number is the number of the target data message determined.For example, message number
For N, wherein, N is positive integer.
Illustratively, the network equipment can set target data message to fix time really according to time interval.Such as：Network
Equipment receives above-mentioned tracking indication information at the moment 1 or is determined in target data message of the completion of moment 1, then
2 at the time of determining to be spaced above-mentioned time interval with the moment 1, the time that the moment 2 is next definite target data message is set.
Moment 2, the network equipment can determine N number of target data message in the data message of reception.For example, the network equipment can determine
There is the data message of the identification information in tracking indication information in the data message received at the moment 2, and in above-mentioned datagram
Determine that N number of data message is target data message in text at random.
Illustratively, the network equipment can also set timer according to time interval.Such as：The network equipment can receive
To tracking indication information or be complete target data message it is definite after, start timer.Reach in timer
During time interval, the network equipment determines N number of target data message in the data message of reception.For example, when timer reaches
Between when being spaced, the network equipment determines the datagram in the data message received at this time with the identification information in tracking indication information
Text, and determine that N number of data message is target data message at random in data message.
Step 303 replicates the target data message, and the interior telemetry network of band of the target data message in duplication
First flag is added in INT information fields, obtains tracking message；
The tracking message is determined as the first data message by step 304.
Step 305, according to the INT information fields, obtain statistical information corresponding with the INT information fields, and general
The statistical information is stored in the INT information fields, obtains the second data message；
Step 306, according to the first flag, replication processes are carried out to second data message, obtain the 3rd data
Message；
Second data message is sent to software defined network SDN controllers by step 307, so that the SDN is controlled
Device determines to be used for transmission the transmission path of data message according to second data message；
Step 308, when the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to institute
State the next-hop network equipment of the network equipment so that the next-hop network equipment to the 3rd data message perform with it is described
The identical step of the network equipment.
Optionally, in a kind of possible realization method, tracking indication information further includes：Tracking starts identification information, on
The method of stating can also include：
Identify that the tracking starts whether identification information is second identifier；
If it is second identifier that the tracking, which starts identification information, the target data message is replicated.SDN controllers to
The network equipment issues tracking and starts identification information.
For example, SDN controllers are issuing the same of the IP information of target data message and frequency reproduction to the network equipment
When, it also issues above-mentioned tracking and starts identification information.
The tracking start identification information instruction the network equipment whether generate tracking message and on send tracking message to SDN control
Device.Tracking, which starts identification information, includes second identifier and the 3rd mark.Second identifier instruction network equipment generation tracking message is simultaneously
On send tracking message to SDN controllers；3rd mark instruction the network equipment do not generate tracking message and not on send tracking message
To SDN controllers.
When it is second identifier that tracking, which starts identification information, the network equipment is in response to the second identifier.The network equipment according to
Tracking indication information determines target data message, and performs and replicate the target data message, and in the number of targets of duplication
According to first flag is added in the interior telemetry network INT information fields of the band of message, to obtain the process of tracking message.
When tracking starts identification information and identified for the 3rd, even if the network equipment receives the tracking from SDN controllers and refers to
Show information, also do not perform the process of definite target data message.
Fig. 4 shows one illustrative message forwarding schematic diagram of the present invention.
Illustratively, by taking example shown in Fig. 4 as an example, after SW2 receives the data message from SW1, if identifying the number
According to carrying first flag in message, that is to say, that the data message is tracking message, can be sent to the data message
SDN controllers, and can be by the data message forwarding to SW3.
So, the network equipment only carries the tracking message of first flag to the transmission of SDN controllers, can reduce to
The message amount sent out on SDN controllers, it is further to improve the treatment effeciency of SDN controllers, and can accurately judge network event
Hinder position, the efficiency of Network Fault Detection, the further high efficiency for improving network operation can be improved.
Illustratively, with reference to example shown in Fig. 4.Wherein, VM10 and VM40 is to belong to same virtual extended LAN
(English：Virtual Extensible LAN, referred to as：VXLAN the virtual machine in), SW1 and SW4 are access VXLAN tunnels end
Point (English：VXLAN Tunnel End Point, referred to as：VTEP) equipment, SW1, SW2, SW3 and SW4 support INT functions.
SW1 is INT Source equipment, and SW2, SW3 are INT Transit Hop equipment, and SW4 is INT Sink equipment.
Under primary condition, SDN controllers issue tracking instruction letter to all network equipments (SW1, SW2, SW3 and SW4)
Breath (including tracking flow table and frequency reproduction information, wherein, source IP (VM10), destination IP (VM40) can be included by tracking in flow table,
Namely the IP information of object message, tenant identification, VPN marks can also include the INT type of messages (agreement in VXLAN heads
Type), first flag, wherein the action item of tracking flow table can include normal forwarding and on send controller etc.).
VM10 sends datagram to SW1.After SW1 receives data message, INT Information encapsulations are carried out to data message, are obtained
To INT messages.At this point, it is second identifier that the tracking that SW1 is received, which starts identification information,.Therefore, can be referred to according to above-mentioned tracking
Show that information determines target data message in above-mentioned INT messages, and target data message is replicated.SW1 is in the INT of duplication
First flag is added in the INT fields of message, obtains tracking message.SW1 will be tracked on message and is sent to SDN controllers, and will be with
Track message and target data message are transmitted to SW2.Wherein, network equipment SW1, SW2, SW3 and SW4 receive data message (with
Track message and target data message) after, it is performed both by the operation of the INT information fields addition statistical information to data message, this hair
It is bright to be no longer described in detail in following examples.
Assuming that the path of VW10 to VM40 is normal, SW1 will track message and target data message is forwarded to SW2.SW2 will be with
Track message up sending continues tracking message and target data message being forwarded to SW3 to SDN controllers.SW3 will be tracked on message
It send to SDN controllers, and continues tracking message and target data message being forwarded to SW4.SW4 will track message up sending to SDN
Controller, meanwhile, the destination address of the tunnel header of SW4 recognition and tracking messages is the address of SW4, thus SW4 do not perform duplication with
The process of track message, and decapsulation processing (solution VXLAN encapsulation, and by INT information from above-mentioned target is carried out to target data message
It is stripped out in message), obtain original data message.SW4 is by data message forwarding to VM40.So, SDN controllers
The tracking message from SW1, SW2, SW3 and SW4 successively is received, the longest path for determining VM10 to VM40 is SW1-SW2-SW3-
SW4。
Assuming that SW3 is to SW4 path failures.After SW3 receives tracking message from SW2 and target data message, SW3 will be with
SDN controllers are sent on track message, and continue tracking message and target data message being forwarded to SW4.SW4 does not receive SW3
The tracking message of forwarding and target data message, SW4 do not send tracking message to SDN controllers.Within the default time, SDN
Controller successively receives the tracking message from SW1, SW2, SW3.After the default time, SDN controllers receive only
The tracking message of SW1, SW2, SW3, therefore SDN controllers determine that the longest path of VM10 to VM40 is SW1-SW2-SW3.SDN is controlled
Device processed reports the longest path of VM10 to VM40 as SW1-SW2-SW3 to network management platform, while reports the road of SW3 to SW4
Footpath is abnormal, so that network management platform handles the SW3 of failure to SW4 paths.
So, SDN controllers can realize the most long transmission path detection to data flow based on INT frames, and can
Accurately to judge network failure position, the efficiency of Network Fault Detection can be improved, it is further to improve the efficient of network operation
Property.
Fig. 5 shows the structure diagram of apparatus for forwarding message according to an embodiment of the invention, which can be applied to net
Network equipment, as shown in figure 5, the device can include：First acquisition module 501, the second acquisition module 502, processing module 503,
504 and first sending module 505 of determining module；Wherein,
First acquisition module 501 can be used for obtaining the first data message, and first data message is included with interior telemetering
Network INT information fields and first flag；
Second acquisition module 502 can be used for, according to the INT information fields, obtaining corresponding with the INT information fields
Statistical information, and the statistical information is stored in the INT information fields, obtains the second data message；
Processing module 503 can be used for according to the first flag, and replication processes are carried out to second data message,
Obtain the 3rd data message；
Determining module 504 can be used for second data message being sent to software defined network SDN controllers, with
The SDN controllers is made to determine to be used for transmission the transmission path of data message according to second data message；
First sending module 505 can be used for when the network equipment is there are during the next-hop network equipment, by the described 3rd
Data message is sent to the next-hop network equipment of the network equipment, so that the next-hop network equipment is counted to the described 3rd
The step identical with the network equipment is performed according to message.
Fig. 6 shows the structure diagram of apparatus for forwarding message according to an embodiment of the invention.
In a kind of possible realization method, when the network equipment is source network device, with reference to Fig. 6, described first
Acquisition module 501 can include：
Receiving submodule 5011 can be used for receiving the tracking indication information that the SDN controllers issue；
First determination sub-module 5012 can be used for, according to the tracking indication information, determining from multiple data messages
Target data message；
Submodule 5013 is replicated, can be used for replicating the target data message, and in the target data report of duplication
First flag is added in the INT information fields of text, obtains tracking message；
Second determination sub-module 5014 can be used for the tracking message being determined as first data message.
In a kind of possible realization method, with reference to Fig. 6, described device can also include：
Second sending module 506 can be used for sending the number of targets to the next-hop network equipment of the network equipment
According to message.
In a kind of possible realization method, the tracking indication information can include：The mark letter of target data message
Breath and the frequency reproduction replicated to the target data message；
First determination sub-module 5012 can be also used for according to the identification information and the frequency reproduction, from multiple numbers
According to being determined in message with the data message of the identification information match as the target data message.
In a kind of possible realization method, tracking indication information further includes：Tracking starts identification information；With reference to Fig. 6, institute
Stating device can also include：
Identification module 507 can be used for identifying that the tracking starts whether identification information is second identifier；
Replication module 508 if can be used for the tracking to start identification information is second identifier, replicates the target
Data message.
Fig. 7 is the hardware block diagram according to a kind of apparatus for forwarding message shown in an exemplary embodiment.Actually should
In, which can be realized by server.With reference to Fig. 7, which, which may include processor 701, be stored with machine can perform
The machine readable storage medium 702 of instruction.Processor 701 can be logical via system bus 703 with machine readable storage medium 702
Letter.Also, processor 701 can by machine corresponding with data processing method logic in read machine readable storage medium storing program for executing 702
It executes instruction to perform message processing method described above.
Machine readable storage medium 702 referred to herein can be any electronics, magnetism, optics or other physical stores
Device can include or store information, such as executable instruction, data, etc..For example, machine readable storage medium can be：With
Machine access memory (English：Radom Access Memory, referred to as：RAM), volatile memory, nonvolatile memory, sudden strain of a muscle
It deposits, memory driver (such as hard disk drive), solid state disk, any kind of storage dish (such as CD, dvd) or similar
Storage medium or combination thereof.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.The selection of term used herein, purport
It is best explaining the principle of each embodiment, practical application or to the technological improvement of the technology in market or is leading this technology
Other those of ordinary skill in domain are understood that each embodiment disclosed herein.
Claims (10)
1. a kind of message forwarding method, which is characterized in that applied to the network equipment, the described method includes：
The first data message is obtained, first data message is included with interior telemetry network INT information fields and first flag；
According to the INT information fields, statistical information corresponding with the INT information fields is obtained, and by the statistical information
It is stored in the INT information fields, obtains the second data message；
According to the first flag, replication processes are carried out to second data message, obtain the 3rd data message；
Second data message is sent to software defined network SDN controllers, so that the SDN controllers are according to described
Two data messages determine to be used for transmission the transmission path of data message；
When the network equipment is there are during the next-hop network equipment, the 3rd data message is sent to the network equipment
Next-hop network equipment, so that the next-hop network equipment is identical with the network equipment to the 3rd data message execution
The step of.
2. according to the method described in claim 1, it is characterized in that, when the network equipment be source network device when, it is described to obtain
The first data message is taken, including：
Receive the tracking indication information that the SDN controllers issue；
According to the tracking indication information, target data message is determined from multiple data messages；
Replicate the target data message, and the first mark of addition in the INT information fields of the target data message of duplication
Know, obtain tracking message；
The tracking message is determined as first data message.
3. according to the method described in claim 2, it is characterized in that, the method further includes：
The target data message is sent to the next-hop network equipment of the network equipment.
4. according to the method described in claim 2, it is characterized in that, the tracking indication information includes：Target data message
Identification information and the frequency reproduction replicated to the target data message,
It is described that target data message is determined from multiple data messages according to the tracking indication information, including：
According to the identification information and the frequency reproduction, determined from multiple data messages and the identification information match
Data message is as the target data message.
5. according to the method described in claim 4, it is characterized in that, the tracking indication information further includes：Tracking starts mark
Information；
Before the duplication target data message, the method further includes：
Identify that the tracking starts whether identification information is second identifier；
If it is second identifier that the tracking, which starts identification information, the target data message is replicated.
6. a kind of apparatus for forwarding message, which is characterized in that applied to the network equipment, described device includes：
First acquisition module, for obtaining the first data message, first data message is included with interior telemetry network INT information
Field and first flag；
Second acquisition module, for according to the INT information fields, obtaining statistical information corresponding with the INT information fields,
And the statistical information is stored in the INT information fields, obtain the second data message；
Processing module, for according to the first flag, carrying out replication processes to second data message, obtaining the 3rd data
Message；
Determining module, for second data message to be sent to software defined network SDN controllers, so that the SDN is controlled
Device processed determines to be used for transmission the transmission path of data message according to second data message；
First sending module, for when the network equipment is there are during the next-hop network equipment, the 3rd data message to be sent out
It send to the next-hop network equipment of the network equipment, so that the next-hop network equipment performs the 3rd data message
The step identical with the network equipment.
7. device according to claim 6, which is characterized in that when the network equipment is source network device, described the
One acquisition module, including：
Receiving submodule, for receiving the tracking indication information that the SDN controllers issue；
First determination sub-module, for according to the tracking indication information, target data message to be determined from multiple data messages；
Submodule is replicated, for replicating the target data message, and the INT information words of the target data message in duplication
First flag is added in section, obtains tracking message；
Second determination sub-module, for the tracking message to be determined as first data message.
8. device according to claim 7, which is characterized in that described device further includes：
Second sending module, for sending the target data message to the next-hop network equipment of the network equipment.
9. device according to claim 7, which is characterized in that the tracking indication information includes：Target data message
Identification information and the frequency reproduction replicated to the target data message；
First determination sub-module is additionally operable to according to the identification information and the frequency reproduction, from multiple data messages
It determines with the data message of the identification information match as the target data message.
10. device according to claim 9, which is characterized in that the tracking indication information further includes：Tracking starts mark
Information；Described device further includes：
Identification module, for identifying that the tracking starts whether identification information is second identifier；
Replication module if it is second identifier to start identification information for the tracking, replicates the target data message.
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