CN106856453A - Route switching method and system and routing device - Google Patents
Route switching method and system and routing device Download PDFInfo
- Publication number
- CN106856453A CN106856453A CN201510900170.XA CN201510900170A CN106856453A CN 106856453 A CN106856453 A CN 106856453A CN 201510900170 A CN201510900170 A CN 201510900170A CN 106856453 A CN106856453 A CN 106856453A
- Authority
- CN
- China
- Prior art keywords
- error rate
- bit error
- path
- routing device
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/123—Evaluation of link metrics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/16—Threshold monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
Abstract
The invention discloses a kind of route switching method and system and routing device, it is related to data communication field.Route switching method therein includes：The downstream path issue of ingress routing device carries the bit error rate measurement message of bit error rate threshold value；The measuring node routing device that bit error rate measurement message is received in path downstream measures the bit error rate of this path downstream, the bit error rate of measurement is compared with bit error rate threshold value, the result that bit error rate is measured is determined according to comparative result, and feeds back to ingress routing device；The result that the bit error rate that ingress routing device feeds back according to each measuring node routing device in path downstream is measured determines transmission path.Message is measured by downstream issuing bit error rate using ingress routing device, ingress routing device is set to determine transmission path according to the measurement situation of measured downstream node-routing equipment, the effect of the switching for realizing the bit error rate according to flow to be route.
Description
Technical field
The present invention relates to data communication field, especially a kind of route switching method and system and
Routing device.
Background technology
In existing route is switched fast testing mechanism, two-way converting detection (BFD,
Bidirectional Forwarding Detection) it is used to be not connected in advance when peer system
When setting the packet of quantity, infer that the software or hardware infrastructure of its protection break down；
MPLS (Multi-Protocol Label Switching, multiprotocol label switching) OAM
(Operation, Administration and Maintenance, operation management maintainance) is used
In it is determined that the connectedness of LSP (Label Switch Router, label switched path), weighs
The utilization rate of network and the performance of measurement network.
The content of the invention
One purpose of the embodiment of the present invention is：Propose a kind of new bit error rate based on flow
The route handoff scheme that (BER, Bit Error Rate) is realized.
A kind of one side according to embodiments of the present invention, there is provided route switching method, including：
Ingress routing device downstream path issue bit error rate measurement message, and surveyed in bit error rate
Bit error rate threshold value is carried in amount message；Bit error rate measurement message is received in path downstream
Measuring node routing device measures the bit error rate of this path downstream, will measure bit error rate with
Bit error rate threshold value is compared, and the result that bit error rate is measured is determined according to comparative result, and
The result that bit error rate is measured is fed back into ingress routing device；Ingress routing device according to
The result of the bit error rate measurement of each measuring node routing device feedback determines to pass in path downstream
Defeated path.
In one embodiment, bit error rate measurement message supports type, length, numerical value TLV
Form, wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
In one embodiment, measuring node routing device will be measured bit error rate and errored bit
Rate threshold value is compared, if the bit error rate of measurement exceedes bit error rate threshold value, determines errored bit
Rate transfinites, if the bit error rate of measurement determines that bit error rate is normal not less than bit error rate threshold value.
In one embodiment, measuring node routing device passes through path error message PathErr
The result that bit error rate is measured is fed back to ingress route by the wrong denoted object in Message
Equipment, wherein, the wrong denoted object in path error message includes error code and wrong community
Value, error code is used for representing that measurement type is bit error rate measurement that wrong community value is used for representing
The result of bit error rate measurement.
In one embodiment, ingress routing device is according to each measuring node in path downstream
The result of the bit error rate measurement of routing device feedback determines that transmission path includes：If path downstream
In each measuring node routing device feedback bit error rate measurement result it is normal, ingress road
The path downstream is defined as transmission path by equipment.
In one embodiment, path downstream includes main path and backup path；If path downstream
In each measuring node routing device feedback bit error rate measurement result it is normal, ingress road
The path downstream is defined as into transmission path by equipment includes：If each measuring node in main path
The bit error rate measurement result of routing device feedback is normal, and ingress routing device is by main path
It is defined as transmission path.
In one embodiment, method also includes：Ingress routing device is according to traffic engineering tunnel
The configuration in road, the path to be passed through of computation-bound tag path tunnel, and by limited label road
The tunnel path to be passed through in footpath is defined as path downstream to be measured.
A kind of second aspect according to embodiments of the present invention, there is provided routing device, including：Measurement
News release module, for downstream path issue bit error rate measurement message, and in errored bit
Bit error rate threshold value is carried in rate measurement message；Transmission path determining module, for according to downstream
The result of the bit error rate measurement of each measuring node routing device feedback determines transmission road in path
Footpath.
In one embodiment, bit error rate measurement message supports type, length, numerical value TLV
Form, wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
In one embodiment, transmission path determining module is used for when each measurement in path downstream
When the bit error rate measurement result of node-routing equipment feedback is normal, the path downstream is determined
It is transmission path.
In one embodiment, path downstream includes main path and backup path；Transmission path is true
Cover half block is used for when the bit error rate measurement knot of each measuring node routing device feedback in main path
When fruit is normal, main path is defined as transmission path.
In one embodiment, also including measuring route determining module, for according to traffic engineering
The configuration in tunnel, the path to be passed through of computation-bound tag path tunnel, and by limited label
The path to be passed through of path tunnel is defined as path downstream to be measured.
A kind of 3rd aspect according to embodiments of the present invention, there is provided routing device, including：Measurement
Message reception module, for receiving bit error rate measurement message；Bit error rate measurement module, uses
In the bit error rate for measuring this path downstream；Threshold value comparison module, for bit error rate to be measured
The bit error rate of module measurement is compared with bit error rate threshold value；Feedback module, for that will miss
The result of bit rate measurement feeds back to ingress routing device.
In one embodiment, bit error rate measurement message supports type, length, numerical value TLV
Form, wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
In one embodiment, threshold value comparison module is used for the bit error rate and errored bit that will be measured
Rate threshold value is compared, if the bit error rate of measurement exceedes bit error rate threshold value, determines errored bit
Rate transfinites, if the bit error rate of measurement determines that bit error rate is normal not less than bit error rate threshold value.
In one embodiment, feedback module is used to pass through path error message PathErr
The result that bit error rate is measured is fed back to ingress route by the wrong denoted object in Message
Equipment, wherein, the wrong denoted object in path error message includes error code and wrong community
Value, error code is used for representing that measurement type is bit error rate measurement that wrong community value is used for representing
The result of bit error rate measurement.
A kind of 4th aspect according to embodiments of the present invention, there is provided route handoff system, including the
One routing device and secondary route equipment；First routing device for it is foregoing any one disappear including measurement
The routing device of breath release module and transmission path determining module；Secondary route equipment is foregoing
One kind includes message reception module, bit error rate measurement module, threshold value comparison module and feedback mould
The routing device of block.
The present invention measures message by downstream issuing bit error rate using ingress routing device, makes
Ingress routing device can determine to transmit according to the measurement situation of measured downstream node-routing equipment
Path, the effect of the switching for realizing the bit error rate according to flow to be route.
By referring to the drawings to the detailed description of exemplary embodiment of the invention, the present invention
Further feature and its advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it is clear that
Ground, drawings in the following description are only some embodiments of the present invention, for the common skill in this area
For art personnel, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 shows the schematic flow sheet of one embodiment of route switching method of the present invention.
Fig. 2 shows the schematic flow sheet of another embodiment of route switching method of the present invention.
Fig. 3 shows the structural representation of one embodiment of route handoff system of the present invention.
Fig. 4 shows the structural representation of one embodiment of first routing device of the present invention.
Fig. 5 shows the structural representation of one embodiment of secondary route equipment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention
It is clearly and completely described, it is clear that described embodiment is only a real part of the invention
Example is applied, rather than whole embodiments.Below to the description reality of at least one exemplary embodiment
It is merely illustrative on border, never as to the present invention and its application or any limitation for using.
Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment for being obtained is put, the scope of protection of the invention is belonged to.
The route switching method of one embodiment of the invention is described below with reference to Fig. 1.
Fig. 1 is the flow chart of one embodiment of route switching method of the present invention.As shown in figure 1,
The method of the embodiment includes：
Step S102, ingress routing device downstream path issue bit error rate measurement message,
And carry bit error rate threshold value in bit error rate measurement message.
Step S104, receives the measuring node route of bit error rate measurement message in path downstream
The bit error rate of device measuring this path downstream.
With bit error rate threshold value be compared the bit error rate of measurement by step S106, measuring node,
The result that bit error rate is measured is determined according to comparative result.
Where it is determined that the method for bit error rate measurement result can be：Measuring node routing device will
The bit error rate of measurement is compared with bit error rate threshold value, if the bit error rate of measurement exceedes missing
Bit rate threshold, determines that bit error rate transfinites, if the bit error rate of measurement is not less than bit error rate
Threshold value, determines that bit error rate is normal.
The result that bit error rate is measured is fed back to ingress route and set by step S108, measuring node
It is standby.
Step S110, ingress routing device sets according to each measuring node route in path downstream
The result of the bit error rate measurement of standby feedback determines transmission path.
Message is measured by downstream issuing bit error rate using ingress routing device, makes ingress
Routing device can determine transmission path according to the measurement situation of measured downstream node-routing equipment, real
The effect of the switching for having showed the bit error rate according to flow to be route.
In step S108, for example, can feed back bit error rate measurement result using following methods：
Measuring node routing device is referred to by the mistake in path error message (PathErr Message)
Show that the result that bit error rate is measured is fed back to ingress routing device by object, wherein, path is wrong
The wrong denoted object in message includes error code and wrong community value by mistake, and error code is used for representing
Measurement type is bit error rate measurement, and wrong community value is used for representing the result of bit error rate measurement.
RSVP-TE (Resource Reservation Protocol-Traffic Engineering,
RSVP based on Traffic Engineering extensions) several type of messages are provided, including
Path message (PATH) and PathErr message (path error message, PathErr
Message).Path message is downstream sent by sender along the direction of data-message transmission,
The storing path state on all nodes on the way, and be there occurs during treatment Path message
During mistake, node will be sent upstream by PathErr message.PathErr message does not influence edge
The state of way node, simply gives sender error reporting.Therefore, it can by PathErr
The result that message is measured to ingress feedback bit error rate.Specifically, can define new
Error Code (error code) and Error in ERROR_SPEC (mistake denoted object)
Value (wrong community value), measures according to different Error Value reflection bit error rates
Different Results.Existing mistake is anti-in by that in this way, can utilize RSVP-TE
Infeed mechanism, to the bit error rate situation in ingress feedback path, does not interfere with path other
The transmission of message.Table 1 is the ERROR_SPEC that can reflect bit error rate measurement situation
Example.As shown in table 1, Error Code are TBD, when Error Value are 0, table
Show that bit error rate is normal；When Error Value are 1, represent that bit error rate transfinites.Ability
Field technique personnel it should be clear that the content in table 2 is not restricted, as needed, can be with
Error Code and Error Value comprising other guide are set, as long as can clearly reflect
Bit error rate measures situation.
Table 1
In step s 110, ingress routing device for example can determine transmission using following methods
Path：Ingress routing device feeds back according to each measuring node routing device in path downstream
The result of bit error rate measurement determines that transmission path includes：If each measuring node in path downstream
The bit error rate measurement result of routing device feedback is normal, and ingress routing device is by the downstream
Path is defined as transmission path.When the bit error rate measurement result of each node feeding back is normal,
Illustrate the bit error rate of the flow in the path and not less than threshold value, thus can be as transmission road
Footpath, so as to the reliability of subsequent data transmission.
Generally for the situation that there are multiple paths between ingress and egress, initial
Stage is to specify the main path and backup path that will be transmitted.Flow in main path
In the case of bit error rate is normal, main path should be as far as possible selected as transmission path.Therefore,
In the case where main path and backup path is specified, it would however also be possible to employ following method determines transmission
Path：If the bit error rate measurement result of each measuring node routing device feedback is equal in main path
Normally, main path is defined as transmission path by ingress routing device.By in this way,
Preferential in the case where transmission quality is ensured main path can be used as transmission path.
Additionally, before ingress routing device issue bit error rate measurement message, can use
Following method determines path downstream to be measured：Ingress routing device is according to traffic engineering tunnel
Configuration, the path to be passed through of computation-bound tag path tunnel, and by limited tag path
The path to be passed through of tunnel is defined as path downstream to be measured.By in this way,
When there are multiple paths between ingress and egress, but when only part path participates in transmission,
The path for participating in transmitting can be determined, it is to avoid other paths carry out unnecessary bit error rate measurement.
In foregoing individual embodiments, bit error rate measurement message can support TLV (Type
Length Value, type, length, numerical value) form, wherein, type is surveyed for bit error rate
Amount type, numerical value is bit error rate threshold value.TLV forms are a kind of letter in data communication protocol
Breath coded system, Type represents the type of whole data block, Length using a digital code
Refer to the size (typically in units of byte) in Value areas, Value is data field.Wherein,
Type and Length domains are regular lengths, generally 1 to 4 byte, and Value domains are variable
Length.The data of TLV forms are easy to be embedded into other kinds of message.By using this
The method of kind, can determine to compare by mistake according to the Value of the bit error rate message of TLV forms parts
Whether special rate exceedes threshold value, and reflect measurement result by the type field.With reference to preceding
PathErr message described in text, when the bit error rate of flow in path exceedes threshold value, can be with
The Type parts in bit error rate message are modified first, then PathErr message root
Modified according to Type parts, to reflect bit error rate measurement result, finally by PathErr
Message feedback feeds node-routing equipment.Table 2 shows the bit error rate measurement of TLV forms
The structural representation of message.As shown in table 2, Type is referred to the Error Code in table 1,
Corresponding Error Value are consistent, so that PathErr message can be according to ratio by mistake
The type field modification bit error rate measurement result of special rate measurement message, and fed back.
Table 2
For the transmission path based on RSVP-TE agreements, the bit error rate message of TLV forms
Can be contained in and be transmitted in Path message.The present invention is described below with reference to Fig. 2 to be based on
The route switching method of RSVP-TE agreements, be by bit error rate message definition
BER_REQUEST message.
Fig. 2 is the flow chart of another embodiment of route switching method of the present invention.As shown in Fig. 2
The method of the embodiment includes：
Step S202, using LDP agreements (tag distribution protocol, Label Distribution
Protocol) set up between LSR (LSR, Label Switch Router)
LDP sessions.
Step S204, according to TE on Ingress LSR (ingress LSR)
The constraint that (Traffic Engineering, traffic engineering) tunnel is configured, such as specified path, band
The conditions such as width constraint, link coloring pass through CSPF (Constraint-based Shortest Path
First, affined shortest-path first algorithm) path to be passed through of tunnel is calculated, and
Specify main path and backup path.
Step S206, Ingress LSR send out BER_REQUEST message according to the path for calculating
Cloth gives downstream LSR.
Step S208, the LSR in downstream receive the BER_REQUEST message in Path message
Afterwards, bit error rate detection is carried out in current path.
Step S210, when the flow bit error rate that LSR is measured exceedes the bit error rate threshold value of setting
When, the type field in BER_REQUEST message is revised as 1.
The type field of step S212, LSR in BER_REQUEST message will
The Error Value of ERROR_SPEC objects are set to 1 in PathErr message.
Step S214, LSR send PathErr message to Ingress LSR directions.
Step S216, Ingress LSR receive the PathErr message, read ERROR_SPEC
In Error Value values, judge send the message LSR residing for path there is bit error rate
More than the problem of threshold value.If the path is transmission path, transmission path is switched to from the path
Other paths.
Step S218, when the bit error rate measurement of path middle and upper reaches LSR is normal, continues downstream
LSR sends BER_REQUEST message and measures bit error rate, until Egress LSR (go out
Vertex ticks TSR).
Step S220, when not existing BER_REQUEST TLV message in path, stops missing
Bit rate is measured, and carries out transparent forwarding to Path message.
Step S222, confirms the resource reservation of transmission path on Egress LSR, upstream sends out
PathErr message is sent, the bit error rate measurement of link, and report measurement results are completed.
By the way that the route handoff based on RSVP-TE in this way, can be realized.
Wherein, step S216 can also specifically comprise the following steps：First, Ingress LSR
The PathErr message is received, if the LSR for sending the message is located at main path, by transmission path
Backup path is switched to from main path；Then, the bit error rate of flow in measurement main path is continued,
When bit error rate is less than threshold value, the PathErr that Error Value are 0 is sent to Ingress LSR
Message；Finally, Ingress LSR receive PathErr message, confirm to eliminate ratio by mistake in main path
Special rate exceedes the problem of threshold value, and transmission path is switched back into main path from backup path.Thus, may be used
With when main path does not exist bit error rate and exceedes the situation of threshold value, as far as possible using main path as transmission
Path.
The route handoff system of one embodiment of the invention is described below with reference to Fig. 3.
Fig. 3 is the structure chart of one embodiment of route handoff system of the present invention.As shown in figure 3,
System includes first routing device 32 and secondary route equipment 34.First routing device 32 is used for
Used as ingress routing device, issue bit error rate measurement message simultaneously determines transmission path；Second
Routing device 34 is used to complete bit error rate measurement and result is fed back into first routing device 32.
First routing device 32 and secondary route equipment 34 are specifically introduced below.
The first routing device of one embodiment of the invention is described below with reference to Fig. 4.
Fig. 4 is the structure chart of one embodiment of first routing device of the present invention.As shown in figure 4,
First routing device 32 includes：Measurement news release module 422, for the issue of downstream path
Bit error rate measures message, and carries bit error rate threshold value in bit error rate measurement message；Pass
Defeated path determination module 424, for anti-according to each measuring node routing device in path downstream
The result of the bit error rate measurement of feedback determines transmission path.
Wherein, bit error rate measurement message supports type, length, numerical value TLV forms, wherein,
Type is bit error rate measurement type, and numerical value is bit error rate threshold value.
Wherein, transmission path determining module is used for when each measuring node route sets in path downstream
When the bit error rate measurement result of standby feedback is normal, the path downstream is defined as transmission path.
Wherein, path downstream includes main path and backup path；Transmission path determining module is used for
When the bit error rate measurement result of each measuring node routing device feedback in main path is normal,
Main path is defined as transmission path.
Wherein, equipment also includes measuring route determining module, for according to traffic engineering tunnel
Configuration, the path to be passed through of computation-bound tag path tunnel, and by limited tag path tunnel
The path to be passed through of road is defined as path downstream to be measured.
The secondary route equipment of one embodiment of the invention is described below with reference to Fig. 5.
Fig. 5 is the structure chart of one embodiment of secondary route equipment of the present invention.As shown in figure 5,
Secondary route equipment 34 includes：Measurement message reception module 542, surveys for receiving bit error rate
Amount message；Bit error rate measurement module 544, the bit error rate for measuring this path downstream；
Threshold value comparison module 546, for the bit error rate and the ratio by mistake that measure bit error rate measurement module
Special rate threshold value is compared；Feedback module 548, for the result feedback for measuring bit error rate
Feed node-routing equipment.
Wherein, bit error rate measurement message supports type, length, numerical value TLV forms, wherein,
Type is bit error rate measurement type, and numerical value is bit error rate threshold value.
Wherein, threshold value comparison module is used to carry out the bit error rate of measurement with bit error rate threshold value
Compare, if the bit error rate of measurement exceedes bit error rate threshold value, determine that bit error rate transfinites, if
The bit error rate of measurement determines that bit error rate is normal not less than bit error rate threshold value.
Wherein, feedback module is used to compare by mistake by the wrong denoted object in path error message
The result of special rate measurement feeds back to ingress routing device, wherein, the mistake in path error message
Denoted object includes error code and wrong community value by mistake, and error code is used for representing that measurement type is to miss
Bit rate is measured, and wrong community value is used for representing the result of bit error rate measurement.
Additionally, the method according to the invention is also implemented as a kind of computer program product, should
Computer program product includes computer-readable medium, is stored with the computer-readable medium
Computer program for performing the above-mentioned functions limited in the method for the present invention.Art technology
Personnel will also understand is that, the various illustrative logical blocks with reference to described by disclosure herein, mould
Block, circuit and algorithm steps may be implemented as the group of electronic hardware, computer software or both
Close.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements made etc. all should be wrapped
It is contained within protection scope of the present invention.
Claims (17)
1. a kind of route switching method, including：
Ingress routing device downstream path issue bit error rate measurement message, and in the mistake
Bit error rate threshold value is carried in bit rate measurement message；
The measuring node routing device that the bit error rate measurement message is received in path downstream is surveyed
The bit error rate of this path downstream is measured, the bit error rate of measurement is compared with bit error rate threshold value
Compared with, the result that bit error rate is measured is determined according to comparative result, and the knot that bit error rate is measured
Fruit feeds back to ingress routing device；
The mistake that ingress routing device feeds back according to each measuring node routing device in path downstream
The result of bit rate measurement determines transmission path.
2. method according to claim 1, it is characterised in that wherein, it is described to compare by mistake
Special rate measurement message supports type, length, numerical value TLV forms,
Wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
3. method according to claim 1, it is characterised in that wherein, measuring node
With bit error rate threshold value be compared the bit error rate of measurement by routing device, if the mistake ratio of measurement
Special rate exceedes bit error rate threshold value, determines that bit error rate transfinites, if the bit error rate of measurement does not surpass
Bit error rate threshold value is crossed, determines that bit error rate is normal.
4. method according to claim 1, it is characterised in that wherein, measuring node
The result that routing device is measured bit error rate by the wrong denoted object in path error message
Ingress routing device is fed back to,
Wherein, the wrong denoted object in path error message PathErr Message includes mistake
Error code and wrong community value, error code are used for representing that measurement type is bit error rate measurement, mistake
Property value is used for representing the result of bit error rate measurement.
5. method according to claim 1, it is characterised in that wherein, it is described enter section
The bit error rate that point routing device feeds back according to each measuring node routing device in path downstream is surveyed
The result of amount determines that transmission path includes：
If the bit error rate measurement result of each measuring node routing device feedback is equal in path downstream
Normally, the path downstream is defined as transmission path by ingress routing device.
6. method according to claim 1 or 5, it is characterised in that the downstream road
Footpath includes main path and backup path；
If the bit error rate measurement result of each measuring node routing device feedback is equal in path downstream
Normally, the path downstream is defined as transmission path by ingress routing device includes：
If the bit error rate measurement result of each measuring node routing device feedback is just in main path
Often, main path is defined as transmission path by ingress routing device.
7. method according to claim 1, it is characterised in that also include：
The configuration of ingress routing device foundation traffic engineering tunnel, computation-bound tag path tunnel
The path to be passed through of road, and the path that the limited tag path tunnel to be passed through determination
It is path downstream to be measured.
8. a kind of routing device, including：
Measurement news release module, for downstream path issue bit error rate measurement message, and
Bit error rate threshold value is carried in bit error rate measurement message；
Transmission path determining module, for according to each measuring node routing device in path downstream
The result of the bit error rate measurement of feedback determines transmission path.
9. equipment according to claim 8, it is characterised in that wherein, it is described to compare by mistake
Special rate measurement message supports type, length, numerical value TLV forms,
Wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
10. equipment according to claim 8, it is characterised in that the transmission path is true
Cover half block is used for when the bit error rate measurement of each measuring node routing device feedback in path downstream
When result is normal, the path downstream is defined as transmission path.
11. equipment according to claim 8, it is characterised in that the path downstream bag
Include main path and backup path；
The transmission path determining module is used for when each measuring node routing device is anti-in main path
When the bit error rate measurement result of feedback is normal, main path is defined as transmission path.
12. equipment according to claim 8, it is characterised in that also including measuring route
Determining module, for the configuration according to traffic engineering tunnel, computation-bound tag path tunnel institute
The path to be passed through, and the limited path to be passed through of tag path tunnel is defined as treating
The path downstream of measurement.
A kind of 13. routing devices, including：
Measurement message reception module, for receiving the bit error rate measurement message；
Bit error rate measurement module, the bit error rate for measuring this path downstream；
Threshold value comparison module, for the bit error rate that measures the bit error rate measurement module with
Bit error rate threshold value is compared；
Feedback module, the result for bit error rate to be measured feeds back to ingress routing device.
14. equipment according to claim 13, it is characterised in that wherein, it is described to compare by mistake
Special rate measurement message supports type, length, numerical value TLV forms,
Wherein, type is bit error rate measurement type, and numerical value is bit error rate threshold value.
15. equipment according to claim 13, it is characterised in that the threshold value compares mould
Block is used to be compared the bit error rate of measurement with bit error rate threshold value, if the errored bit of measurement
Rate exceed bit error rate threshold value, determine that bit error rate transfinites, if measurement bit error rate not less than
Bit error rate threshold value, determines that bit error rate is normal.
16. equipment according to claim 13, it is characterised in that the feedback module is used
Wrong denoted object in by path error message feeds back to the result that bit error rate is measured
Ingress routing device,
Wherein, the wrong denoted object in path error message PathErr Message includes mistake
Error code and wrong community value, error code are used for representing that measurement type is bit error rate measurement, mistake
Property value is used for representing the result of bit error rate measurement.
A kind of 17. route handoff systems, including first routing device and secondary route equipment；
The first routing device is the routing device described in any one of claim 8~12；
The secondary route equipment is the routing device described in any one of claim 13~16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900170.XA CN106856453A (en) | 2015-12-09 | 2015-12-09 | Route switching method and system and routing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900170.XA CN106856453A (en) | 2015-12-09 | 2015-12-09 | Route switching method and system and routing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106856453A true CN106856453A (en) | 2017-06-16 |
Family
ID=59131280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510900170.XA Pending CN106856453A (en) | 2015-12-09 | 2015-12-09 | Route switching method and system and routing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106856453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244471A1 (en) * | 2019-06-03 | 2020-12-10 | 华为技术有限公司 | Processing method and apparatus based on link error code |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035718A (en) * | 2009-09-27 | 2011-04-27 | 中国移动通信集团公司 | Method, device and system for protection switching of packet transport network |
| CN102137464A (en) * | 2010-01-25 | 2011-07-27 | 中兴通讯股份有限公司 | Base station system and transmitting method of Abis port data thereof |
| CN103023776A (en) * | 2012-11-16 | 2013-04-03 | 华为技术有限公司 | Path selection method and device and storage area network |
| CN104104601A (en) * | 2013-04-01 | 2014-10-15 | 华为技术有限公司 | Data transmission method, device and system |
-
2015
- 2015-12-09 CN CN201510900170.XA patent/CN106856453A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035718A (en) * | 2009-09-27 | 2011-04-27 | 中国移动通信集团公司 | Method, device and system for protection switching of packet transport network |
| CN102137464A (en) * | 2010-01-25 | 2011-07-27 | 中兴通讯股份有限公司 | Base station system and transmitting method of Abis port data thereof |
| CN103023776A (en) * | 2012-11-16 | 2013-04-03 | 华为技术有限公司 | Path selection method and device and storage area network |
| CN104104601A (en) * | 2013-04-01 | 2014-10-15 | 华为技术有限公司 | Data transmission method, device and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244471A1 (en) * | 2019-06-03 | 2020-12-10 | 华为技术有限公司 | Processing method and apparatus based on link error code |
| US11863303B2 (en) | 2019-06-03 | 2024-01-02 | Huawei Technologies Co., Ltd. | Link bit error-based processing method and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101427501B (en) | Method and apparatus for consistency between MPLS traffic engineering forwarding and control planes | |
| CN109547279B (en) | Method and system for processing signal degradation fault | |
| EP3131243B1 (en) | Flow label negotiation methods and related devices | |
| CN100553232C (en) | A kind of method for building up of traffic engineering tunnel and device | |
| US20100135189A1 (en) | Method for establishing clock tracing relation and apparatus for computing clock tracing relation | |
| EP2068506B1 (en) | Method, system and provider edge router for detecting pseudo wire fault | |
| CN101945049A (en) | Multi-protocol label switching system, node equipment and establishing method of bidirectional tunnel | |
| WO2015192518A1 (en) | Error detection method, apparatus and system for potn | |
| CN101145930A (en) | Method, system and device for guaranteeing reliable transmission of multicast service | |
| CN104869032B (en) | A kind of method and system carrying out CAC detection by business layer bandwidth | |
| CN101640637A (en) | Resource reservation protocol tunnel management method based on flow rate engineering and system thereof | |
| US20170155575A1 (en) | Restoration method for an mpls ring network | |
| Hariyawan | Comparison analysis of recovery mechanism at MPLS network | |
| US9215136B2 (en) | Aggregated delivery of tunnel fault messages on common ethernet segments | |
| CN102055619A (en) | Method and system for realize fault detection in bidirectional path segment | |
| WO2019193240A1 (en) | Border routers in multicast networks and methods of operating the same | |
| CN109889444A (en) | A kind of methods, devices and systems of planning path | |
| CN107181677A (en) | A kind of method and device of the main tunnel nodes protections of P2MP | |
| CN101964743A (en) | Multiprotocol label-switched path APS (Active Protection System) protection and management method, equipment and system | |
| CN106161232B (en) | tunnel protection switching method and device | |
| CN101645822A (en) | Traffic engineering tunnel building method and system | |
| CN106856453A (en) | Route switching method and system and routing device | |
| WO2018054197A1 (en) | Method and apparatus for path selecting | |
| CN105262661A (en) | Network system and method for solving ring formation of access layer of IPRAN packet transport network through wireless mode | |
| CN102201970B (en) | Method and system for performing routing optimization on associated bidirectional label switched path (LSP) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |
|
| RJ01 | Rejection of invention patent application after publication |