CN108881340A - A kind of method and device that time delay is collected - Google Patents
A kind of method and device that time delay is collected Download PDFInfo
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- CN108881340A CN108881340A CN201710329444.3A CN201710329444A CN108881340A CN 108881340 A CN108881340 A CN 108881340A CN 201710329444 A CN201710329444 A CN 201710329444A CN 108881340 A CN108881340 A CN 108881340A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/63—Routing a service request depending on the request content or context
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- 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
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Abstract
The embodiment of the invention provides the method and device that a kind of time delay is collected, the method that time delay is collected includes：It receives the time delay that upstream node is sent and collects request, the type that time delay collects request includes：Mandatory requirement and optional request；The type of request and the local policy of present node are collected according to time delay, are judged whether present node supports the collection of time delay, are obtained judging result, judging result includes：Present node supports the collection of time delay and present node not to support the collection of time delay；The type and judging result of request, the corresponding information of downstream node transmission of upstream nodes or present node are collected according to time delay.In the present embodiment, the downstream node that the type of request and the local policy upstream nodes of present node or present node can be collected according to time delay sends corresponding information, come complete entire path time delay collection, virtual link caused by tunnel is identified, by the time delay being collected into so that follow-up business is superimposed upon on virtual link and the selection of virtual link.
Description
Technical field
The present invention relates to a kind of data network communications field, in particular to a kind of method and device of time delay collection.
Background technique
RSVP-TE (Resource Reservation Protocol-Traffic Engineer, based on traffic engineering
Resource Reservation Protocol) it is a kind of based on MPLS (Multi-Protocol Label Switching, multiprotocol label switching)
Technology of Traffic Engineering.Industry is realized by four components of forwarding of information publication, path computing, Signalling exchange (RSVP-TE), flow
Forwarding of the business flow in TE (Traffic Engineer, traffic engineering) tunnel.
The tunnel RSVP-TE for carry L2VPN (L2Virtual Private Network, L2 Virtual Private Network) and
L3VPN (L3Virtual Private Network, L3 Virtual Private Network), while passing through the shapes such as static routing, policybased routing
Formula participates in router-level topology.RSVP-TE more and more serves each business, provides the pipe service on basis.Therewith
Come, it is also higher and higher to the constraint of tunnel path, such as basis bandwidth constraint, hop count constraint, link cost, affinity, when
Prolong constraint etc..
With being widely used for RSVP-TE pipeline, has in terms of the pipeline delay established to RSVP-TE and propose wanting for difference
It asks, the service ability that fining tunnel provides, the practical time delay of tunnel path, facilitates the tunnel selection of business.For example, time delay
Low RSVP-TE tunnel pipelines are supplied to the business to delay sensitive, and the high RSVP-TE tunnel pipelines of time delay are supplied to time delay
Insensitive business.To meet the requirement for the service ability that fining tunnel provides, the time delay in tunnel is needed to be collected.
In IP (Internet Protocol, the agreement interconnected between network) optical-fiber network, the UNI (User of foundation
Network Interface, user side interface) tunnel, how anti-more present is a virtual link in an ip network,
The time delay for answering this virtual link needs the collection by tunnel time delay.
However, how the tunnel RSVP-TE collects the time delay of Actual path, the overall delay on tunnel is reacted, industry does not have also
There are relevant technology and methods to define.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides the method and devices that a kind of time delay is collected.Pass through
Time delay collects the local policy of the type and different nodes requested to collect the time delay in entire path, passes through the difference being collected into and saves
The time delay of point identifies virtual link caused by this tunnel or channel, so that the selection of virtual link and follow-up business are folded
It is added on virtual link.
One aspect according to an embodiment of the present invention provides a kind of method that time delay is collected, including：
It receives the time delay that upstream node is sent and collects request, the type that the time delay collects request includes：Mandatory requirement and
Optional request；
The type of request and the local policy of present node are collected according to the time delay, judge whether the present node props up
The collection for holding time delay, obtains judging result, wherein the judging result includes：The present node support time delay collection and
The present node does not support the collection of time delay；
The type and the judging result that request is collected according to the time delay, to the upstream node or the present node
Downstream node send corresponding information.
Optionally, the type and the judging result that request is collected according to the time delay, to the upstream node or described
The downstream node of present node sends corresponding information, including：
If the type that the time delay collects request is mandatory requirement, and when the collection of present node support time delay,
The time delay of the present node and the time delay are collected into the downstream node that request is sent to the present node；Or
If the type that the time delay collects request is mandatory requirement, and the present node does not support the collection of time delay
When, to the upstream node transmitting path error message；Or
If the type that the time delay collects request is optional request, and the present node supports the collection of time delay
When, the time delay of the present node and the time delay are collected into the downstream node that request is sent to the present node；Or
If the type that the time delay collects request is optional request, and the present node does not support the collection of time delay
When, the time delay is only collected into the downstream node that request is sent to the present node.
Optionally, the time delay be arranged in logic based MINLP RSVP-TE expanded signalling type,
In the length of subdomain value and/or the information of subdomain value.
Optionally, the type that the time delay collects request passes through the RSVP-TE denoting signaling of extension.
Optionally, it is indicated using the extension bits of label switched path demand properties LSP_REQUIRED_ATTRIBUTES
Mandatory requirement；
Optional request is indicated using the extension bits of label switched path attribute LSP_ATTRIBUTES.
Other side according to an embodiment of the present invention additionally provides a kind of time delay collection device, including：
Receiving module, the time delay for receiving upstream node transmission collect request, and the time delay collects the type packet of request
It includes：Mandatory requirement and optional request；
Judgment module, for collecting the type of request and the local policy of present node according to the time delay, described in judgement
Whether present node supports the collection of time delay, obtains judging result, and the judging result includes：The present node supports time delay
Collection and the present node do not support the collection of time delay；
Sending module, for collecting the type and the judging result of request according to the time delay, to the upstream node
Or the downstream node of the present node sends corresponding information.
Optionally, the sending module includes：
First transmission unit, if collecting the type of request for the time delay as mandatory requirement, and the present node
When supporting the collection of time delay, the time delay of the present node and the time delay are collected into request and are sent under the present node
Swim node；
Second transmission unit, if collecting the type of request for the time delay as mandatory requirement, and the present node
When not supporting the collection of time delay, to the upstream node transmitting path error message；
Third transmission unit if collecting the type of request for the time delay is optional request, and described works as prosthomere
When point supports the collection of time delay, the time delay of the present node and the time delay are collected into request and are sent to the present node
Downstream node；
4th transmission unit if collecting the type of request for the time delay is optional request, and described works as prosthomere
When point does not support the collection of time delay, the time delay is only collected into the downstream node that request is sent to the present node.
Optionally, the time delay be arranged in logic based MINLP RSVP-TE expanded signalling type,
In the length of subdomain value and/or the information of subdomain value.
Optionally, the type that the time delay collects request passes through the RSVP-TE denoting signaling of extension.
Optionally, it is indicated using the extension bits of label switched path demand properties LSP_REQUIRED_ATTRIBUTES
Mandatory requirement；
Optional request is indicated using the extension bits of label switched path attribute LSP_ATTRIBUTES.
The embodiment of the present invention has the advantages that：
The local policy upstream nodes of the type and present node requested or the downstream of present node are collected according to time delay
Node sends corresponding information, come complete entire path time delay collection.Tunnel is as a virtual link or virtual path
In the presence of identifying virtual link caused by this tunnel or channel, by the time delay for the different nodes being collected into after an action of the bowels
Continuous business is superimposed upon on virtual link and the selection of virtual link, such as：Tunnel stratification, IP optical-fiber network virtual path are applied in IP
Side.
Detailed description of the invention
Fig. 1 is the flow chart for the method that a kind of time delay provided in an embodiment of the present invention is collected；
Fig. 2 is the flow chart for the method that another time delay provided in an embodiment of the present invention is collected；
Fig. 3 is the structural schematic diagram of the TLV information of the extension of the embodiment of the present invention；
Fig. 4 is the networking scene of the IP optical-fiber network of the embodiment of the present invention；
Fig. 5 is the method schematic diagram that the time delay of the embodiment of the present invention is collected；
Fig. 6 is the structural schematic diagram for the device that the time delay of the embodiment of the present invention is collected.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Fig. 1 is the flow chart for the method that a kind of time delay provided in an embodiment of the present invention is collected, and is collected referring to Fig. 1, time delay
Method includes the following steps：
S101 receives the time delay that upstream node is sent and collects request, and the type that the time delay collects request includes：Pressure is asked
It sums optional request (or to suggest request)；
It can be determined to carry the type that time delay collects request according to the policy mandates in tunnel, wherein the policy mandates in tunnel are based on
The configuration of local user determines.The type that the time delay collects request can pass through the RSVP-TE denoting signaling of extension.
Specifically, the label switched path in RFC (Request For Comments, request for comments) 5420 can be used
The extension bits of demand properties LSP_REQUIRED_ATTRIBUTES indicate mandatory requirement.RFC (Request For can be used
Comments requests for comments) extension bits of label switched path attribute LSP_ATTRIBUTES in 5420 indicate optional
Request.
S102 collects the type of request and the local policy of present node according to the time delay, judges the present node
The collection for whether supporting time delay, obtains judging result, and the judging result includes：The present node support time delay collection and
The present node does not support the collection of time delay；
S103 collects the type and the judging result of request according to the time delay, to the upstream node or described works as
The downstream node of front nodal point sends corresponding information.
The type of request is collected according to the time delay and the local policy of present node to the upstream node or described is worked as
The downstream node of front nodal point sends corresponding information, come complete entire path time delay collection；Tunnel is as a virtual chain
Road perhaps virtual path presence identified by the time delay for the different nodes being collected into virtual link caused by this tunnel or
Channel, so that follow-up business is superimposed upon on virtual link and the selection of virtual link.
Fig. 2 is the flow chart for the method that another time delay provided in an embodiment of the present invention is collected, and referring to fig. 2, time delay is collected
Method include the following steps：
S201 receives the time delay that upstream node is sent and collects request, and the type that the time delay collects request includes：Pressure is asked
It sums optional request (or to suggest request)；
It can be determined to carry the type that time delay collects request according to the policy mandates in tunnel, wherein the policy mandates in tunnel are based on
The configuration of local user determines.
Optionally, the type that the time delay collects request passes through the RSVP-TE denoting signaling of extension.
Specifically, tunnel head node carries the type that the time delay collects request in PATH (path) message, can be with
Mandatory requirement is indicated using the extension bits of the LSP_REQUIRED_ATTRIBUTES in RFC5420.RFC5420 can be used
In the extension bits of LSP_ATTRIBUTES indicate optional request, certainly and lose and be limited to this.
S202 collects the type of request and the local policy of present node according to the time delay, judges the present node
The collection for whether supporting time delay, obtains judging result, and the judging result includes：The present node support time delay collection and
The present node does not support the collection of time delay；
S203, if the type that the time delay collects request is mandatory requirement, and judging result is the present node branch
When holding the collection of time delay, the time delay of the present node and the time delay are collected into the downstream that request is sent to the present node
Node；
S204, if the time delay collect request type be mandatory requirement, and judging result be the present node not
When supporting the collection of time delay, to the upstream node transmitting path error message；
S205, if the type that the time delay collects request is optional request, and judging result is the present node
When supporting the collection of time delay, the time delay of the present node and the time delay are collected into request and are sent under the present node
Swim node；
S206, if the type that the time delay collects request is optional request, and judging result is the present node
When not supporting the collection of time delay, the time delay is only collected into the downstream node that request is sent to the present node.
Wherein, the type of RSVP-TE expanded signalling, the length of subdomain value and/or subdomain value is arranged in the time delay
Information in.Specifically, referring to Fig. 3, the TLV (T of extension：Type (type), L：Length (subdomain value length), V：Value
(subdomain value)) information can carry type, the length of subdomain value, subdomain value and/or retain information.In the present embodiment may be used
The time delay of different nodes is arranged in the TLV information of extension, the TLV information of extension can be RRO (Record-route
Object, record routing subobject) a subobject.
Embodiment of the present invention is illustrated below.
Citing one：
For example, if the time delay of present node outgoing interface being added and is expanded when the present node supports the collection of time delay
In the TLV information of exhibition, a subobject as RRO is carried to downstream node.The time delay is collected to the type of request simultaneously
It is sent to the downstream node of present node.
If the present node does not support the collection of time delay, when the type that the time delay collects request is mandatory requirement
When, PATH-ERR (Path Error, path error) message is sent to upstream node；If the present node does not support time delay
Collection the type that the time delay collects request is sent to and is worked as when the type that the time delay collects request is suggestion request
The downstream node of front nodal point, while the subobject in RRO not added with the TLV information about extension.
Tail node receives PATH message, when responding RESV (Reserve is reserved) message, is received according to the time delay
Collect request type requirement, reserving message carry be provided with outgoing interface time delay extension TLV information, one as RRO
Subobject is carried to upstream node.
Citing two：
Referring to fig. 4, Tunnel (tunnel or channel) 1 leads to R4 node by R2 node and R3 node from R1 node, wherein
The local policy of R2 node does not support the collection of time delay, and the local policy of remaining node supports the collection of time delay.
The path that tunnel1 is calculated is link L1, link L4, link L6, while the time delay collects the class of request
Type is mandatory requirement, carries LSP_REQUIRED_ATTRIBUTES extension bits information in PATH message, while will carry link
The TLV information of the extension of the time delay of L1 is arranged in RRO subobject, time delay value 10.
After R2 node receives the PATH message, since R2 node does not support the collection of time delay, while the time delay is received
Integrate the type of request as mandatory requirement, PATH-ERR message will be responded at this time and give R1 node, stop transmission PATH message and saved to R3
Point.
R1 node receives the PATH-ERR message and then secondary calculating path, needs around R2 node.
Citing three：
With continued reference to Fig. 4, tunnel1 leads to R4 node by R2 node and R3 node from R1 node, wherein R2 node
Local policy does not support the collection of time delay, and the local policy of remaining node supports the collection of time delay.
The path that tunnel1 is calculated is link L1, link L4, link L6, while the time delay collects the class of request
Type is to suggest request, and LSP_ATTRIBUTES extension bits information, while the time delay that will carry link L1 are carried in PATH message
The TLV information newly extended is arranged in RRO subobject, time delay value 10.
After R2 node receives the PATH message, since R2 node does not support the collection of time delay, while the time delay is received
The type of collection request is to suggest request, and R2 node needs to continue to send PATH message toward downstream node, retains in message and suggests asking
The LSP_ATTRIBUTES extension bits information asked, but the TLV information of the extension of R2 node is not carried in RRO.
After R3 node receives PATH message, R3 node supports the collection of time delay, and R3 node outgoing interface is added in RRO
The TLV information of the extension of time delay, the TLV information of the extension of RRO at this time include the time delay of link L1 and link L6, link L1 and chain
The time delay value of road L6 is respectively 10,10.
After R4 node receives PATH message, the time delay of link L1 and link L6 can be got by RRO.R4 simultaneously
Node also supports the collection of time delay, R4 node into the RESV message that R3 node is responded, in RRO subobject add link L6 when
Prolong.
After R3 node receives RESV message, according to the local policy of R3 node, to the RESV message of R2 node response
The middle time delay for carrying link L4.
After R2 node receives RESV message, since R2 node does not support the collection of time delay, sent to R1 node
The time delay of R2 node outgoing interface is not carried in RESV message.
R1 node receives RESV message, the available time delay to link L4 and link L6.Since R2 node is not supported
Time delay is collected, so the time delay that head node (R1 node) and tail node (R4 node) are seen is not complete information.
Citing four：
With continued reference to Fig. 4, Tunnel1 leads to R4 node by R2 node and R3 node from R1 node, wherein all nodes
Local policy support the collection of time delay.
The path that Tunnel1 is calculated be link L1, link L4, link L6, due to each node local policy all
Support the collection of time delay, the time delay, which collects the type of request, to be mandatory requirement or suggests request difference less, with it is described when
Prolong that collect the type of request be illustrated for mandatory requirement.LSP_REQUIRED_ATTRIBUTES is carried in PATH message
Extension bits information, while the TLV information for the extension for carrying the time delay of link L1 being arranged in the subobject of RRO, link L1
Time delay value be 10.
After R2 node receives the PATH message, according to the local policy of R2 node, R2 node needs to continue toward downstream
Node sends PATH message, the LSP_REQUIRED_ATTRIBUTES extension bits information of reservation mandatory requirement in message, in RRO
The time delay of the link L4 of the outgoing interface of R2 node is carried, the time delay value of link L4 is 10.
After R3 node receives PATH message, R3 node supports the collection of time delay, and R3 node outgoing interface is added in RRO
Link L6 time delay, the time delay carried in RRO at this time includes the time delay of link L1, link L4 and link L6, link L1, link
The time delay value of L4 and link L6 are respectively 10,10,10.
After R4 receives PATH message, the time delay of link L1, link L4, link L6 can be got by RRO, also
It is to say the available time delay to entire path of tail node.Local simultaneously also time delay to be supported to collect, R4 disappears to the RESV that R3 is responded
In breath, the time delay of link L6 is added in RRO subobject.
After R3 node receives RESV message, according to the local policy of R3 node, to the RESV message of R2 node response
Link L4 time delay is added equally in RRO.
After R2 node receives RESV message, according to the local policy of R2 node, to the RESV message of R1 node transmission
Carry the time delay of the link L1 of local outgoing interface.
R1 node receives RESV message, the available time delay to link L1, link L4, link L6.Same head node
(R1 node) can also get the time delay in the entire path tunnel1 by above procedure.
Citing five：
Referring to Fig. 5, IP optical-fiber network is divided into IP layers and photosphere, and with the fusion of IP network and optical-fiber network, IP layers of needs pass through
Traffic engineering tunnel passes through photosphere and establishes an access, is IP layers of business service.
A tunnel is established between C1 node and C2 node shown in Fig. 5, pass through optical-fiber network.Due to IP layers and photosphere
Between be isolation, so path calculation module is respectively necessary for calculating the path C1-N1 at C1 node, N1- is calculated at N1 node
The path N2 calculates the path N2-C2 at N2 node.
Using the TLV message structure of extension, by the carrying mode of RRO, by the information of the time delay TLV of tunnel Actual path
It is carried to the head node and tail node in tunnel, the collection process of time delay is similar with the collection process of citing four, just no longer tired here
It states.
In the present embodiment, the type of request and the local policy of present node can be collected according to the time delay to described
The downstream node of upstream node or the present node sends corresponding information, and the time delay is arranged in based on traffic engineering
In the information of the type of Resource Reservation Protocol RSVP-TE expanded signalling, the length of subdomain value and/or subdomain value, it can incite somebody to action
On the time delay of every section of Actual path gradually carries.In type, the length of subdomain value of head node and tail node by analysis extension
The information of degree and/or subdomain value, the available time delay to whole path.It is marked by the time delay for the different nodes being collected into
Virtual link caused by this tunnel or channel are known, so that follow-up business is superimposed upon on virtual link and the choosing of virtual link
It selects.
The embodiment of the invention also provides the devices that a kind of time delay is collected, referring to Fig. 6, the device packet of the time delay collection
It includes：Receiving module 601, judgment module 602 and sending module 603.
Wherein, the time delay that the receiving module 601 is used to receive upstream node transmission collects request, and the time delay collection is asked
The type asked includes：Mandatory requirement and optional request.
Optionally, the type that the time delay collects request passes through the RSVP-TE denoting signaling of extension.
Specifically, tunnel head node carries the type that the time delay collects request in PATH (path) message, can be with
Mandatory requirement is indicated using the extension bits of the LSP_REQUIRED_ATTRIBUTES in RFC5420.RFC5420 can be used
In the extension bits of LSP_ATTRIBUTES indicate optional request, certainly and lose and be limited to this.
The judgment module 602 is used to collect the type of request and the local policy of present node according to the time delay, sentences
Whether the present node that breaks supports the collection of time delay, obtains judging result, and the judging result includes：The present node branch
The collection of time delay is not supported in the collection and the present node of holding time delay.
The sending module 603 is used to collect the type and the judging result of request according to the time delay, on described
The downstream node for swimming node or the present node sends corresponding information.
Wherein, the sending module 603 includes：First transmission unit, the second transmission unit, third transmission unit and the 4th
Transmission unit.
Wherein, if type of first transmission unit for the time delay to collect request is mandatory requirement, and it is described
When present node supports the collection of time delay, the time delay of the present node and time delay collection request are sent to described current
The downstream node of node；
Optionally, the time delay be arranged in logic based MINLP RSVP-TE expanded signalling type,
In the length of subdomain value and/or the information of subdomain value.
If type of second transmission unit for the time delay to collect request is mandatory requirement, and described works as prosthomere
When point does not support the collection of time delay, to the upstream node transmitting path error message；
If the third transmission unit is optional request for the type that the time delay collects request, and described current
When node supports the collection of time delay, the time delay of the present node and the time delay are collected into request and are sent to the present node
Downstream node；
If the 4th transmission unit is optional request for the type that the time delay collects request, and described current
When node does not support the collection of time delay, the time delay is only collected into the downstream node that request is sent to the present node.
The sending module 603 for the device that the time delay of the embodiment of the present invention is collected according to the time delay collect request type and
The judging result sends corresponding information to the downstream node of the upstream node or the present node, by receiving mould
Between block 601, judgment module 602 and sending module 603 cooperate cooperation, come complete entire path time delay collection；Make in tunnel
Exist for a virtual link or virtual path, is identified by the time delay for the different nodes being collected into caused by this tunnel
Virtual link or channel, so that follow-up business is superimposed upon on virtual link and the selection of virtual link.What the time delay was collected
Device can be realized each process in the embodiment of the method for Fig. 1 to Fig. 2, and to avoid repeating, which is not described herein again.
In various embodiments of the present invention, it should be appreciated that magnitude of the sequence numbers of the above procedures are not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
In addition, the terms " system " and " network " are often used interchangeably herein.
It should be understood that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can deposit
In three kinds of relationships, for example, A and/or B, can indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
In embodiment provided herein, it should be appreciated that " B corresponding with A " indicates that B is associated with A, can be with according to A
Determine B.It is also to be understood that determine that B is not meant to determine B only according to A according to A, it can also be according to A and/or other information
Determine B.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other
Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network side equipment etc.) executes transmitting-receiving side described in each embodiment of the present invention
The part steps of method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, letter
Claim ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of method that time delay is collected, which is characterized in that the method includes：
It receives the time delay that upstream node is sent and collects request, the type that the time delay collects request includes：Mandatory requirement and non-strong
System request；
The type of request and the local policy of present node are collected according to the time delay, when judging whether the present node is supported
The collection prolonged, obtains judging result, wherein the judging result includes：The present node supports the collection of time delay and described
Present node does not support the collection of time delay；
The type and the judging result that request is collected according to the time delay, under the upstream node or the present node
It swims node and sends corresponding information.
2. the method that time delay according to claim 1 is collected, which is characterized in that collect the type of request according to the time delay
With the judging result, corresponding information is sent to the downstream node of the upstream node or the present node, including：
If the type that the time delay collects request is mandatory requirement, and when the collection of present node support time delay, by institute
The time delay and the time delay for stating present node collect the downstream node that request is sent to the present node；Or
If the type that the time delay collects request is mandatory requirement, and when the present node does not support the collection of time delay, to
The upstream node transmitting path error message；Or
If the type that the time delay collects request is optional request, and when the collection of present node support time delay, will
The time delay of the present node and the time delay collect the downstream node that request is sent to the present node；Or
If the type that the time delay collects request is optional request, and when the present node does not support the collection of time delay,
The time delay is only collected into the downstream node that request is sent to the present node.
3. the method that time delay according to claim 2 is collected, which is characterized in that the time delay setting is being based on traffic engineering
The type of Resource Reservation Protocol RSVP-TE expanded signalling, in the information of the length of subdomain value and/or subdomain value.
4. the method that time delay according to claim 1 is collected, which is characterized in that the type that the time delay collects request passes through
The RSVP-TE denoting signaling of extension.
5. the method that time delay according to claim 4 is collected, which is characterized in that
Mandatory requirement is indicated using the extension bits of label switched path demand properties LSP_REQUIRED_ATTRIBUTES；
Optional request is indicated using the extension bits of label switched path attribute LSP_ATTRIBUTES.
6. the device that a kind of time delay is collected, which is characterized in that including：
Receiving module, the time delay for receiving upstream node transmission collect request, and the type that the time delay collects request includes：By force
System request and optional request；
Judgment module judges described current for collecting the type of request and the local policy of present node according to the time delay
Whether node supports the collection of time delay, obtains judging result, and the judging result includes：The present node supports the receipts of time delay
Collection and the present node do not support the collection of time delay；
Sending module, for collecting the type and the judging result of request according to the time delay, to the upstream node or institute
The downstream node for stating present node sends corresponding information.
7. the device that time delay according to claim 6 is collected, which is characterized in that the sending module includes：
First transmission unit, if being mandatory requirement for the type that the time delay collects request, and the present node is supported
When the collection of time delay, the time delay of the present node and the time delay are collected into the downstream joint that request is sent to the present node
Point；
Second transmission unit, if collecting the type of request for the time delay is mandatory requirement, and the present node does not prop up
When holding the collection of time delay, to the upstream node transmitting path error message；
Third transmission unit, if collecting the type of request for the time delay as optional request, and the present node branch
When holding the collection of time delay, the time delay of the present node and the time delay are collected into the downstream that request is sent to the present node
Node；
4th transmission unit, if collecting the type of request for the time delay is optional request, and the present node is not
When supporting the collection of time delay, the time delay is only collected into the downstream node that request is sent to the present node.
8. the device that time delay according to claim 7 is collected, which is characterized in that the time delay setting is being based on traffic engineering
The type of Resource Reservation Protocol RSVP-TE expanded signalling, in the information of the length of subdomain value and/or subdomain value.
9. the device that time delay according to claim 6 is collected, which is characterized in that the type that the time delay collects request passes through
The RSVP-TE denoting signaling of extension.
10. the device that time delay according to claim 9 is collected, which is characterized in that
Mandatory requirement is indicated using the extension bits of label switched path demand properties LSP_REQUIRED_ATTRIBUTES；
Optional request is indicated using the extension bits of label switched path attribute LSP_ATTRIBUTES.
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| CN201710329444.3A CN108881340A (en) | 2017-05-11 | 2017-05-11 | A kind of method and device that time delay is collected |
| PCT/CN2018/085602 WO2018205887A1 (en) | 2017-05-11 | 2018-05-04 | Delay collection method and apparatus |
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| CN113114499A (en) * | 2021-04-08 | 2021-07-13 | 北京京航计算通讯研究所 | Data processing method and system based on Flink streaming computing network |
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