CN106982157A - Traffic engineering tunnel building method and device - Google Patents
Traffic engineering tunnel building method and device Download PDFInfo
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- CN106982157A CN106982157A CN201610032830.1A CN201610032830A CN106982157A CN 106982157 A CN106982157 A CN 106982157A CN 201610032830 A CN201610032830 A CN 201610032830A CN 106982157 A CN106982157 A CN 106982157A
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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
Abstract
The invention provides a kind of traffic engineering tunnel building method and device.Wherein, this method includes：BIER nodes obtain the TE paths of the TE tunnel of traffic engineering of preset flow；The BIER nodes are interacted for setting up the TE information needed for the traffic engineering tunnel by predetermined signaling with other BIER nodes on the TE paths；The BIER nodes set up the traffic engineering tunnel according to the TE information.By the present invention, the problem of solving the bandwidth resources that particular flow rate can not be ensured in BIER networks has ensured the bandwidth resources of flow in BIER networks.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of traffic engineering tunnel building method and device.
Background technology
As software defined network (Software Defined Network, referred to as SDN) technology and network function are virtual
Change (Network Function Virtualization, referred to as NFV) technology in developing rapidly these years, network
Dispose controllability more and more stronger, control complexity also more and more higher therewith.For example, as core network and aggregation networks this
The go-between of sample, in order to be adapted to different business, meets different deployment requirements, control device is more and more numerous and diverse.Again
For example, multicast application such as multicast virtual dedicated network (Multicast VPN, referred to as MVPN) and interactive network electricity
Depending on (IPTV) etc., it is necessary to intermediate network node number of states it is exponential increase.In order to which the control for mitigating go-between is answered
Miscellaneous degree, (Bit Indexed Explicit Replication, referred to as BIER) network technology is explicitly replicated based on position index
Arise at the historic moment.BIER technologies, by being put into the melting pot to forwarding plane, the agreement that can greatly mitigate go-between is answered
Miscellaneous degree and intermediateness.The forwarding of network is simplified to only according to bit progress, traditional Internet Protocol (IP) has been overturned
Forwarding, can very easily realize transmission of the flux of multicast in go-between, any multicast is recorded without go-between
Flow status, greatly facilitate the O＆M of network.
As shown in figure 1, the core concept of BIER technologies, the node in network is all only represented with one bit, group
Broadcast flow to transmit in go-between, presented with multicast IP packet forms, but encapsulate a specific BIER head,
This heading is labelled with all purposes node of the multicast data flow in the form of bit, and go-between enters walking along the street according to bit
By ensureing that flow can be sent to all purposes node.Go-between, to the acquisition of information of all nodes, is by passing
System inter-domain routing protocol, such as ospf (Open Shortest Path First, referred to as OSPF)
Carried out with Intermediate System-to-Intermediate System (Intermediate System to Intermediate System, referred to as ISIS)
Extension, allows it to carry the BIER agreement relevant informations such as bit, completes the transmission of information, and according to OSPF and ISIS
Calculation road calculate reach all purposes node route, be consequently formed BIER route.
Although BIER technologies realize the transmission of flux of multicast, and greatly simplify go-between control management,
But this technology has individual shortcoming, traffic engineering can not be exactly realized for particular flow rate, the resources such as the bandwidth of particular flow rate are ensured.
The content of the invention
The invention provides a kind of traffic engineering tunnel building method and device, at least to solve not protecting in BIER networks
The problem of hindering the bandwidth resources of particular flow rate.
According to an aspect of the invention, there is provided a kind of traffic engineering tunnel building method, applied to BIER networks,
Including：BIER nodes obtain the TE paths of the TE tunnel of traffic engineering of preset flow；The BIER nodes pass through pre-
Determine signaling to interact with other BIER nodes on the TE paths for setting up the TE information needed for the traffic engineering tunnel；
The BIER nodes set up the traffic engineering tunnel according to the TE information.
Alternatively, the TE information is the MPLS label and/or resource reservation information for determining the traffic engineering tunnel
Information.
Alternatively, the TE information includes at least one of：The expense in the TE paths, the band in the TE paths
BSL, BIER section of wide, Sub-Domain-ID, BIER node of BFR-ID, BIER node of BIER nodes
The SI of point.
Alternatively, obtaining the TE paths of the traffic engineering tunnel of the preset flow includes：On the TE paths
The BIER nodes receive the TE paths that the BIER network-based controls node is sent, wherein, the TE roads
Footpath is that the control node is obtained according to the calculating of the topology information of the BIER networks.
Alternatively, obtaining the TE paths of the traffic engineering tunnel of the preset flow includes：The preset flow
Entrance BIER nodes calculate the TE paths of the flow, Huo Zhecong according to the topology information of the BIER networks
Computing module or controller obtain the TE paths.
Alternatively, according to the TE information, setting up the traffic engineering tunnel includes：The BIER on the TE paths
Node distributes MPLS label, to set up the traffic engineering tunnel according to the TE information.
Alternatively, according to the TE information, setting up the traffic engineering tunnel also includes：Exist not in the BIER networks
In the case of supporting BIER to forward or not supporting BIER TE the first BIER nodes, by being saved in the 2nd BIER
The mode of single tunnel or point-to-multi-point tunnel is set up between point and the first BIER nodes, has been connected across described
The connected support BIER TE of first BIER nodes BIER nodes, wherein, the 2nd BIER nodes are described
The BIER node adjacent with the first BIER nodes on TE paths.
Alternatively, the TE paths include：Strict explicit path or Loose explicit path.
According to another aspect of the present invention, additionally provide a kind of traffic engineering tunnel and set up device, applied to BIER nets
In BIER nodes in network, including：Acquisition module, the TE of the TE tunnel of traffic engineering for obtaining preset flow
Path；Interactive module, for being interacted by predetermined signaling with other BIER nodes on the TE paths for setting up
TE information needed for the traffic engineering tunnel；Module is set up, for according to the TE information, setting up the traffic engineering tunnel.
Alternatively, the acquisition module is used for：The TE paths that the BIER network-based controls node is sent are received,
Wherein, the TE paths are that the control node is obtained according to the calculating of the topology information of the BIER networks.
Alternatively, the acquisition module is used for：According to the topology information of the BIER networks calculates the flow
TE paths, or obtain the TE paths from computing module or controller.
Alternatively, the module of setting up is used for：According to the TE information, MPLS label is distributed, to set up the TE
Tunnel.
Alternatively, the module of setting up is additionally operable to：In the BIER networks exist do not support BIER forward or not
In the case of the first BIER nodes for supporting BIER TE, by being saved in the 2nd BIER nodes and the first BIER
The mode of single tunnel or point-to-multi-point tunnel is set up between point, has connected what is be connected across the first BIER nodes
BIER TE BIER nodes are supported, wherein, the 2nd BIER nodes are with described first on the TE paths
The adjacent BIER nodes of BIER nodes.
By the present invention, the TE paths of the TE tunnel of traffic engineering of preset flow are obtained using BIER nodes；It is described
BIER nodes are interacted for setting up the traffic engineering tunnel by predetermined signaling with other BIER nodes on the TE paths
Required TE information；The BIER nodes are set up the mode of the traffic engineering tunnel, solved according to the TE information
The problem of bandwidth resources of particular flow rate can not be ensured in BIER networks, has ensured the bandwidth money of flow in BIER networks
Source.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the flow path in the BIER technologies according to correlation technique；
Fig. 2 is the flow chart of traffic engineering tunnel building method according to embodiments of the present invention；
Fig. 3 is the structured flowchart that traffic engineering tunnel according to embodiments of the present invention sets up device；
Fig. 4 is the flow chart that traffic engineering is realized according to the use signaling method of alternative embodiment of the present invention；
Fig. 5 is the flow chart that traffic engineering is realized according to the use controller mode of alternative embodiment of the present invention；
Fig. 6 is the structured flowchart of the BIER realm entry node processing devices according to alternative embodiment of the present invention；
Fig. 7 is the structured flowchart of the BIER domains intermediate node handles device according to alternative embodiment of the present invention；
Fig. 8 is the structured flowchart of the BIER domains Egress node processing unit according to alternative embodiment of the present invention；
Fig. 9 a~Fig. 9 d are the protocol massages extended field explanation figures according to alternative embodiment of the present invention；
Figure 10 is to set up network diagram according to the explicit path of alternative embodiment of the present invention；
Figure 11 is to set up network diagram according to the loose path of alternative embodiment of the present invention；
Figure 12 is the network diagram that traffic engineering is realized according to the controller mode of alternative embodiment of the present invention；
Figure 13 is the network diagram of the resource reservation implementation according to alternative embodiment of the present invention；
Figure 14 is the network diagram for mixing real-time performance traffic engineering according to alternative embodiment of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing
Etc. being for distinguishing similar object, without for describing specific order or precedence.
A kind of traffic engineering tunnel building method is provided in the present embodiment, and applied to BIER networks, Fig. 2 is basis
The flow chart of the traffic engineering tunnel building method of the embodiment of the present invention, as shown in Fig. 2 the flow comprises the following steps：
Step S202, BIER node obtain the TE paths of the TE tunnel of traffic engineering of preset flow；
Step S204, BIER node is interacted for setting up by predetermined signaling with other BIER nodes on TE paths
TE information needed for traffic engineering tunnel；
Step S206, BIER node sets up traffic engineering tunnel according to TE information.
In the related art, the flow in BIER networks is forwarded based on existing agreement, it is impossible to realize traffic engineering.
By above-mentioned steps, the traffic engineering tunnel of preset flow is set up in BIER networks, so as to solve nothing in BIER networks
The problem of method ensures the bandwidth resources of particular flow rate, has ensured the bandwidth resources of flow in BIER networks.
In the BIER networks of correlation technique, due to each BIER node and traffic engineering tunnel need not be set up, therefore,
The traffic engineering tunnel ability information of BIER nodes simultaneously need not be diffused into other BIER nodes.In embodiments of the present invention, it is
Traffic engineering tunnel is set up, then needs the traffic engineering tunnel ability information of each BIER node being diffused into other BIER nodes.
Therefore, node is interacted for building by predetermined signaling with other BIER nodes on TE paths in embodiments of the present invention
TE information needed for vertical traffic engineering tunnel.Wherein, TE information is the MPLS label and/or resource for determining traffic engineering tunnel
The information of reserved information.
Alternatively, above-mentioned TE information includes but is not limited at least one of：The expense in TE paths, TE paths
BSL, BIER of bandwidth, Sub-Domain-ID, BIER node of BFR-ID, BIER node of BIER nodes
The SI of node.
Alternatively, the TE paths of traffic engineering tunnel can be by BIER network-based controls device (i.e. control node) calculate and under
It is hair or being calculated by BIER nodes (such as other nodes on the Ingress node of flow or path).
For example, in step S202, the BIER nodes on TE paths receive what BIER network-based controls node was sent
TE paths, wherein, TE paths are that control node is obtained according to the calculating of the topology information of BIER networks.Pass through the party
Formula, realizes the centralized management that the traffic engineering tunnel of BIER networks is set up.
For example, in step S202, the entrance BIER nodes of preset flow are calculated according to the topology information of BIER networks
The TE paths of flow.By this way, the Signalling exchange between BIER nodes and control node is reduced, is reduced
The load of control node.In addition, the entrance BIER nodes of preset flow can also obtain TE from computing module or controller
Path.
Alternatively, it is necessary to distribute ingress label and corresponding outlet label on BIER nodes when setting up traffic engineering tunnel,
In step S206, the BIER nodes on TE paths distribute MPLS label, to set up TE according to TE information
Tunnel.
Due in BIER networks, it is understood that there may be do not support BIER to forward or do not support the node of traffic engineering tunnel ability,
Accordingly, it would be desirable to perfect to setting up traffic engineering tunnel progress across these nodes.Alternatively, in step S206, in BIER
Exist in network in the case of not supporting BIER to forward or not supporting BIER TE the first BIER nodes, Ke Yitong
The mode that single tunnel or point-to-multi-point tunnel are set up between the 2nd BIER nodes and the first BIER nodes is crossed, even
The BIER nodes for the support BIER TE being connected across the first BIER nodes are picked up, wherein, the 2nd BIER nodes are
The BIER node adjacent with the first BIER nodes on TE paths.
Alternatively, above-mentioned TE paths include：Strict explicit path or Loose explicit path.Wherein, it is strict explicit
Path is also known as explicit path；Loose explicit path is also known as loose path.Relative to explicit path, loose path can
Specify which node TE paths have to pass through, specify the wherein stretch footpath in TE paths.
Alternatively, above-mentioned predetermined signaling includes at least one of：
The type increased newly in Class Types or C-Types-1SESSION, for describing BIER tunnel types
LSP-Tunnel-Bier；
The type increased newly in Class Types or C-Types-11SENDER_TEMPLATE, for describing BIER
Tunnel Bier-Tunnel；
The type increased newly in Class Types or C-Types-50S2L_SUB_LSP, for describing
S2L-Sub-Lsp-Bier；
The type increased newly in Class Types or C-Types-10FILTER_SPEC, for describing Bier-Tunnel；
The Class1 of Sub-object type 20 in Class Types or C-Types-20EXPLICIT_ROUTE
The type increased newly in Explicit Route, for describing Bier-BfrID；
The Class1 of Sub-object type 21 in Class Types or C-Types-21ROUTE_RECORD
The type increased newly in Route Record, for describing Bier-BfrID；
Sub-object type 133 in Class Types or C-Types-133LINK_CAPABILITY,
The type increased newly in LINK_CAPABILITY, TE Link Capabilities, for describing Bier-BfrID；
Increased newly in Sub-object types in Class Types or C-Types-232EXCLUDE_ROUTE
Type, for describing Bier-BfrID；
The type increased newly in Class Types or C-Types-3RSVP_HOP, for describing
Bier-RSVP-BFR-ID；
The type increased newly in Class Types or C-Types-6ERROR_SPEC, for describing
Bier-BfrID-error。
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment
Method the mode of required general hardware platform can be added to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Understood based on such, technical scheme is substantially in other words to existing
The part for having technology to contribute can be embodied in the form of software product, and the computer software product is stored in one
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are make it that a station terminal equipment (can
To be mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.
A kind of traffic engineering tunnel is additionally provided in the present embodiment and sets up device, applied to the BIER in BIER networks
In node, the device is used to realize above-described embodiment and preferred embodiment, has carried out repeating no more for explanation.Such as
Used below, term " module " can realize the combination of the software and/or hardware of predetermined function.Although following real
Apply the device described by example preferably to realize with software, but hardware, or the realization of the combination of software and hardware is also
May and it be contemplated.
Fig. 3 is the structured flowchart that traffic engineering tunnel according to embodiments of the present invention sets up device, as shown in figure 3, the dress
Put including：Acquisition module 32, interactive module 34 and module 36 is set up, wherein, acquisition module 32 is default for obtaining
The TE paths of the TE tunnel of traffic engineering of flow；Interactive module 34, coupled to acquisition module 32, for by predetermined
Signaling is interacted with other BIER nodes on TE paths for setting up the TE information needed for traffic engineering tunnel；Module 36 is set up,
Coupled to interactive module 34, for according to TE information, setting up traffic engineering tunnel.
Alternatively, acquisition module 32 is used for：The TE paths that BIER network-based controls node is sent are received, wherein, TE
Path is that control node is obtained according to the calculating of the topology information of BIER networks.
Alternatively, acquisition module 32 is used for：The TE paths of flow are calculated according to the topology information of BIER networks, or
TE paths are obtained from computing module or controller.
Alternatively, setting up module 36 is used for：According to TE information, MPLS label is distributed, to set up traffic engineering tunnel.
Alternatively, module 36 is set up to be additionally operable to：Existing in BIER networks does not support BIER to forward or do not support
In the case of BIER TE the first BIER nodes, by being built between the 2nd BIER nodes and the first BIER nodes
The mode of vertical single tunnel or point-to-multi-point tunnel, has connected the support BIER TE being connected across the first BIER nodes
BIER nodes, wherein, the 2nd BIER nodes are the BIER node adjacent with the first BIER nodes on TE paths.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module distinguishes position
In multiple processors.
The embodiment of the present invention additionally provides a kind of BIER nodes, and the node sets up device including above-mentioned traffic engineering tunnel.
Embodiments of the invention additionally provide a kind of software, and the software is used to perform in above-described embodiment and preferred embodiment
The technical scheme of description.
Embodiments of the invention additionally provide a kind of storage medium.In the present embodiment, above-mentioned storage medium can be set
To store the program code for being used for performing following steps：
Step S202, BIER node obtain the TE paths of the TE tunnel of traffic engineering of preset flow；
Step S204, BIER node is interacted for setting up by predetermined signaling with other BIER nodes on TE paths
TE information needed for traffic engineering tunnel；
Step S206, BIER node sets up traffic engineering tunnel according to TE information.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage
(Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as
For RAM), mobile hard disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
In order that the description of the embodiment of the present invention is clearer, it is described and illustrates with reference to alternative embodiment.
Alternative embodiment of the present invention provides a kind of traffic engineering method and device based on the explicit duplicate network of position index, with
It is embodied as specific flow and specific flow guarantee service is provided, so as to realizes that different flow is transmitted in the differentiation of go-between.
The traffic engineering method based on the explicit duplicate network of position index that alternative embodiment of the present invention is provided comprises the following steps：
Step 1, the device node in BIER domains is learnt from each other to the TE information of its support；
Step 2, network edge device, includes the access device and outlet device of flow, please in the flow for being collected into user
After asking, between traffic ingress node and flowexit node, it is established that traffic engineering tunnel.
Customer flow is realized into BIER network domains by above-mentioned steps, can be obtained by specific TE paths
Related guarantee and reach Egress node.
Optionally, the node TE relevant informations in BIER networks, node oneself can each manage, can also pass through control
Device (i.e. BIER network-based controls node) processed is calculated and managed.
Optionally, included but is not limited between the node in BIER networks by TE Signalling exchange information, interactive content：
The information such as path cost, bandwidth.In addition, the also peculiar information of BIER nodes, for example, the bit of node turns
Send out Route Distinguisher (Bit-Forwarding Router Identifier, referred to as BFR-ID) and subdomain mark
(Sub-Domain-ID) information such as.In addition, the peculiar information of BIER nodes also alternatively includes but is not limited to：Bit
The BIER such as string length (Bit String Length, referred to as BSL) and set identification (Set Identifier, referred to as SI)
Information.
Optionally, the signaling for being used to interact TE information in BIER networks includes but is not limited to following several extensions, wherein,
Newly-increased types value is only recommended value at this, and actual value can be different, or network data distributor gear (The to be interconnected
Internet Assigned Numbers Authority, referred to as IANA) unified distribution.Various extensions can be according to network
Specific deployment scenario is applied in combination.
Class Types or C-Types-1SESSION, increase type 25 newly, for describing BIER tunnel types
LSP-Tunnel-Bier。
Class Types or C-Types-11SENDER_TEMPLATE, increase Class1 8 newly, for describing
Bier-Tunnel。
Class Types or C-Types-50S2L_SUB_LSP, increase type 3 newly, for describing S2L-Sub-Lsp-Bier.
Class Types or C-Types-10FILTER_SPEC, increase Class1 8 newly, for describing Bier-Tunnel.
The Class1 of Sub-object type 20 in Class Types or C-Types-20EXPLICIT_ROUTE
Explicit Route, increase type 5 newly, for describing Bier-BfrID.
The Class1 Route of Sub-object type 21 in Class Types or C-Types-21ROUTE_RECORD
Record, increases type 6 newly, for describing Bier-BfrID.
Sub-object type 133 in Class Types or C-Types-133LINK_CAPABILITY,
LINK_CAPABILITY, TE Link Capabilities, increase type 70 newly, for describing Bier-BfrID.
Sub-object types in Class Types or C-Types-232EXCLUDE_ROUTE, increase type 40 newly,
For describing Bier-BfrID.
Class Types or C-Types-3RSVP_HOP, increase type 7 newly, for describing Bier-RSVP-BFR-ID.
Class Types or C-Types-6ERROR_SPEC, increase type 5 newly, for describing Bier-BfrID-error.
Optionally, the calculating in the TE paths in BIER networks, can also pass through control in the spontaneous progress of each node
Device processed (including related virtual management module) is carried out.
Optionally, BIER network nodes can use including but not limited to constraint formula most short when carrying out TE correlation computations
Heat source (Constrained Shortest Path First, referred to as CSPF) algorithm is calculated.Constraints bag
Include：Sub-domain-ID, different topology requirement etc..
Optionally, in calculating related TE, explicit path can be calculated, loose path can be similarly calculated.
Optionally, in TE correlation computations, routing information can be only calculated, the resource reservation such as bandwidth letter can also be calculated
Breath.
Optionally, according to result of calculation, the node of BIER networks carries out corresponding label distribution and interaction, completes whole
The foundation in TE paths.
Optionally, BIER TE functions, support single tunnel mode and Multicast Tunnel mode, and single tunnel is considered as
It is the special case of Multicast Tunnel.
Optionally, in BIER networks, if there is the node for not supporting BIER forwardings or BIER TE, Ke Yi
Close between the BIER TE nodes of this kind of node, pass through common single tunnel, or point-to-multipoint (P2MP) tunnel
Mode is encapsulated, and has been connected the BIER TE capable nodes being connected across node, has been achieved in BIER TE fullpath.
Optionally, after traffic engineering tunnel is established, it is issued to the forwarding plane of each node.Flow BIER domains Ingress node,
Corresponding tunnel is chosen, corresponding tunnel label and BIER heads is encapsulated；The forwarding plane of each node of BIER domains
Will according to label information, flow enter it is fashionable correctly forwarded, and the service such as corresponding Bandwidth guaranteed can be provided.
Alternative embodiment of the present invention additionally provides a kind of traffic engineering device based on the explicit duplicate network of position index, device bag
Include：
Traffic engineering tunnel module (is used to realize that traffic engineering tunnel sets up the function of device), for setting up traffic engineering tunnel；BIER
TE package modules, the Ingress node positioned at BIER domains selects corresponding traffic engineering tunnel to particular flow rate, carries out BIER
Head encapsulation and corresponding label encapsulation, and be forwarded in BIER domains.
BIER TE forwarding modules, in BIER domains on each TE relevant node equipments, each equipment is according to traffic engineering tunnel
Label information, carries out the resource guarantees such as bandwidth, and be forwarded to next-hop BIER nodes or Egress node for the tunnel.
BIER TE decapsulation modules, the Egress node positioned at BIER domains, the carrying traffic engineering tunnel to reaching Egress node
The BIER flows of label information, carry out decapsulation operation, and revert to common IP streams or the flow of other forms, and
It is sent to the overseas nodes of BIER.
Optionally, traffic engineering tunnel module can be located at all nodes in BIER domains, including Ingress node, Egress node and centre
On node.The foundation of traffic engineering tunnel is completed by BIER domain nodes interact TE signaling messages, distribute corresponding label and
The resources such as reserved bandwidth；
Optionally, controlled by controller or network function virtualization, directly issue the corresponding label of traffic engineering tunnel and reserved
The information such as bandwidth are to each node of BIER domains, and BIER domain nodes can interact signaling without TE and be done directly TE
Tunnel building.
By alternative embodiment of the present invention, the traffic engineering of particular flow rate in BIER domains, can be completed, BIER is compensate for
The shortcoming of resource guarantee can not be carried out in domain to particular flow rate, applicable scene and the deployment of BIER technologies is greatly extended
Environment, to high-priority traffic, including flux of multicast and unicast traffic, can complete traffic engineering function, with good
Adaptability and development prospect.
Alternative embodiment of the present invention is described and illustrated below in conjunction with the accompanying drawings.
A kind of label processing method is provided in the present embodiment, and Fig. 4 is label processing method according to embodiments of the present invention
Flow chart, as shown in figure 4, the flow comprises the following steps：
The equipment in step S402, BIER domains, according to BIER nodal informations, link overhead, the resource information such as bandwidth is accurate
It is standby to set up P2MP traffic engineering tunnels；
Each device node in step S404, BIER domains, to specific traffic demand, Signalling exchange label and resource are pre-
The information such as stay, set up traffic engineering tunnel；
Each device node in step S406, BIER domains, by the traffic engineering tunnel of foundation, provides resource to particular flow rate and protects
The Traffic engineering services of barrier.
By above-mentioned steps, Traffic engineering services can be completed in BIER domains, by the interaction of itself of each equipment
Foundation and implementation in BIER domains.
Fig. 5 is the flow chart that use controller mode according to embodiments of the present invention realizes traffic engineering, as shown in figure 5,
The flow comprises the following steps：
Step S502, controller collects the resource informations such as topology information, the bandwidth of BIER nodes；Controller is included but not
It is limited to the network function management module of controller or virtualization.
Step S504, controller is calculated, and the flow engineering link for meeting its requirement is calculated to particular flow rate, may
It is explicit path, it is also possible to loose path.The information such as its corresponding label are issued in BIER domains on each node.
The information that the node in step S506, BIER domains is issued according to controller, is forwarded, and completes the money of particular flow rate
The functions such as source guarantee.
By above-mentioned steps, Traffic engineering services can be completed in BIER domains, by the management and calculating of controller
Foundation and implementation in BIER domains.
A kind of label processing device is additionally provided in the present invention, and the device is used to realize above-described embodiment and the side of being preferable to carry out
Formula, had carried out repeating no more for explanation.As used below, term " module " can realize the soft of predetermined function
The combination of part and/or hardware.Although the device described by following examples is preferably realized with software, hardware,
Or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 6 is the structured flowchart applied to BIER realm entry node apparatus according to embodiments of the present invention, as shown in fig. 6,
The device includes traffic engineering tunnel module, BIER TE package modules and BIER TE forwarding modules, and the device is carried out below
Explanation.
Traffic engineering tunnel module 62, the TE information for management node.
Optionally, interact with each other signaling in BIER domains interior nodes to realize under the scene that traffic engineering tunnel is set up, the traffic engineering tunnel
Module 62 is also responsible for managing the resource related information of all nodes in BIER domains in addition to management node TE information, and
And explicit or loose path can be calculated according to the demand of particular flow rate.And it can be built by TE Signalling exchanges
Erect corresponding tunnel.
Optionally, managed using controller under the scene of BIER domain nodes, the traffic engineering tunnel module 62 is except management
Outside node TE information, in addition it is also necessary to from the information such as the distributed label of controller acquisition and resource identification.
BIER TE package modules 64, for managing particular flow rate to the mapping in tunnel, are entering BIER by specific flow
During domain, packaged its specific BIER and MPLS heads.
BIER TE forwarding modules 66, for according to MPLS and BIER heads, the correct next hop neighbor of selection to be handed over
Dehorn label, and forwarded according to BIER forwarding rule.
Fig. 7 is the structured flowchart applied to BIER domains intermediate node device according to embodiments of the present invention, as shown in fig. 7,
The device includes traffic engineering tunnel module and BIER TE forwarding modules, and the device is illustrated below.
Traffic engineering tunnel module 72, the TE information for management node.
Optionally, interact with each other signaling in BIER domains interior nodes to realize under the scene that traffic engineering tunnel is set up, the traffic engineering tunnel
Module 72 is also responsible for managing the resource related information of all nodes in BIER domains in addition to management node TE information, and
And related label and resource allocation can be carried out, and can enter advance with downstream node according to the signaling requirement of upstream node
The Signalling exchange of one step, it is established that corresponding tunnel.
Optionally, managed using controller under the scene of BIER domain nodes, the traffic engineering tunnel module 72 is except management
Outside node TE information, in addition it is also necessary to which to-controller is interacted, distributed label and resource identification is obtained from controller
Etc. information.
BIER TE forwarding modules 74, for according to MPLS and BIER heads, the correct next hop neighbor of selection to be handed over
Dehorn label, and forwarded according to BIER forwarding rule.
Fig. 8 is the structured flowchart applied to BIER domains Egress node device according to embodiments of the present invention, as shown in figure 8,
The device includes traffic engineering tunnel module, BIER TE decapsulation modules and BIER TE forwarding modules, and the device is entered below
Row explanation.
Traffic engineering tunnel module 82, the TE information for management node.
Optionally, interact with each other signaling in BIER domains interior nodes to realize under the scene that traffic engineering tunnel is set up, the traffic engineering tunnel
Module 82 is also responsible for managing the resource related information of all nodes in BIER domains in addition to management node TE information, and
And can carry out related label and resource allocation according to the signaling requirement of upstream node, interact and distributed with upstream node
The information such as label.
Optionally, managed using controller under the scene of BIER domain nodes, the traffic engineering tunnel module 82 is except management
Outside node TE information, in addition it is also necessary to which to-controller is interacted, distributed label and resource identification is obtained from controller
Etc. information.
BIER TE decapsulation modules 84, for the first-class information of MPLS according to message, be reduced into script IP streams or
Person's other forms flow, transfers BIER domains.
BIER TE forwarding modules 86, for receiving BIER messages, according to tag head and BIER headers, one side
On give BIER TE decapsulation modules 84, if on the other hand this Egress node downstream also has node to need forwarding,
Correct downstream node can be selected, switch label is forwarded according to BIER forwarding rules.
Fig. 9 a~Fig. 9 d are protocol massages extended field explanation figures according to embodiments of the present invention, as described below only to illustrate：
SESSION increases type 25 newly, for describing LSP-Tunnel-Bier, specific form as illustrated in fig. 9, Extended
Tunnel ID are used under the type, are worth the BFR-ID of the Ingress node BFIR to create tunnel, and extended field
Sub-domain-ID is used for identifying the sub-domain belonging to the tunnel.
SENDER_TEMPLATE increases Class1 8 newly, for describing Bier-Tunnel.Specific form as shown in figure 9b,
Bier tunnel sender BFR-ID are used for identifying the BFR-ID of sender, and Sub-domian Originator BFR-ID are used
To distinguish different PATH message, Sub-domian ID are used for identifying the BIER sub-domian belonging to the tunnel.
S2L_SUB_LSP increases type 3 newly, for describing S2L-Sub-Lsp-Bier.Specific form as is shown in fig. 9 c,
Bier S2L Sub-LSP destination BFR-ID are used for the BFR-ID of recognition purpose node.
FILTER_SPEC increases Class1 8 newly, for describing Bier-Tunnel, the similar SENDER_TEMPLATE of form,
Tired state is not done herein.
The Class1 Explicit Route of Sub-object type 20 in EXPLICIT_ROUTE, increase type 5 newly, are used for
Bier-BfrID is described.As shown in figure 9d, BIER BFR-ID are used for identifying the BIER BFR-ID of node to specific form
Information.
The Class1 Route Record of Sub-object type 21 in ROUTE_RECORD, increase type 6 newly, are used for
Bier-BfrID is described.Form does not do tired state herein with the newly-increased part in EXPLICIT_ROUTE.
Sub-object types in EXCLUDE_ROUTE, increase type 40 newly, for describing Bier-BfrID, tool
Physique formula is similar, is also not repeated.
RSVP_HOP increases type 7 newly, for describing Bier-RSVP-BFR-ID.Specifically form is similar is not repeated.
ERROR_SPEC increases type 5 newly, for describing Bier-BfrID-error.Specifically form is similar is not repeated.
Figure 10 is that explicit path according to embodiments of the present invention sets up network diagram, as shown in Figure 10：
The particular flow rate by the BIER network deliveries is needed for a certain bar, it is BFIR1, outlet to learn access device
Node is BFER7 and BFER8, is learnt by the calculating on Ingress node BFIR1, it is necessary to by explicit path
BFIR1--BFR3--BFR4--BFR6--BFER8, BFIR1--BFR3--BFR4--BFER7, the inborn ability after BFR4
Prop up onto two paths.
Several equipment of BFIR1, BFR3, BFR4, BFR6, BFER7, BFER8, the BIER extended by the present invention
TE signalings are interacted, it is established that complete TE paths, the label information set up according to path is interacted, and are ensured
The particular flow rate completes the forwarding in the BIER networks by explicit path specified above.
Figure 11 is that loose path according to embodiments of the present invention sets up network diagram, as shown in figure 11：
The particular flow rate by the BIER network deliveries is needed for a certain bar, it is BFIR1, outlet to learn access device
Node is BFER7 and BFER8, is learnt by the calculating on Ingress node BFIR1, it is necessary to be arrived by loose path
Up to Egress node, but in some control purposes, it is necessary to pass through BFR5 nodes, then pass through head node and BFR5 calculation
Road, passes through signaling, it is established that path：BFIR1--BFR3--BFR5--BFR6--BFER8,
BFIR1--BFR3--BFR5--BFR6--BFR4--BFER7, just needs to be branched off on two paths after BFR6.
Several equipment of BFIR1, BFR3, BFR4, BFR5, BFR6, BFER7, BFER8, pass through present invention expansion
The BIER TE signalings of exhibition are interacted, it is established that complete TE paths, and the label information set up according to path is carried out
Interaction, ensures that the particular flow rate, by above loose path, completes the forwarding in the BIER networks.
Figure 12 is the network diagram that controller mode according to embodiments of the present invention realizes traffic engineering, as shown in figure 12：
Equipment in network, it is some or all of, it is controlled by controller, controller collects all node devices
The information such as the BIER network informations and resource, for specific flow, can only calculate corresponding path, be issued to section
Point allows node oneself to run signaling to form tunnel；The information such as corresponding label can also be calculated again, and are issued to BIER
The forwarding plane of network, completes forwarding of the particular flow rate in BIER networks.
Figure 13 is the network diagram of resource reservation implementation according to embodiments of the present invention, as shown in figure 13：
In BIER networks, as the method shown in the present invention, except the foundation of the particular paths such as explicit path and loose path,
Internet resources guarantee is applied also for, the other information such as including bandwidth.As shown in figure 13, common discharge 1, common discharge 2
Transmitted with particular flow rate 3 again by BIER networks, even if common discharge 1 and particular flow rate 3 are by identical
Path reach Egress node, but have special flow guarantee for particular flow rate 3, can ensure that particular flow rate 3 is passed through
The bandwidth of node, is especially overlapping node BFIR1, BFR3, BFR4 and BFR6.Thus the present invention can be to spy
Fixed, or there is provided the resource guarantees such as corresponding bandwidth for the flow of high priority.
Figure 14 is the network diagram for mixing real-time performance traffic engineering according to embodiments of the present invention, as shown in figure 14：
In BIER networks, it may have some nodes due to deployment reason and do not support BIER to forward or BIER TE
Function, as shown in figure 14, in the network, between BFR3 and BFR4, it is necessary to pass through node R 9, but R9 is not supported
BIER forwarding capabilitys, therefore for specific flow, when setting up TE paths, BIER will not be supported to forward cross-domain
Or set up tunnel between the node BFR3 and BFR4 of BIER TE function points, flow is when by R9, and R9 will be by
Forwarded according to modes such as common IPv4/IPv6；Same flow, can also be with the node by not supporting BIER TE
Common BIER flows or MPLS tunnel styles forwarding.Tunnel can equally reserve the resources such as bandwidth, complete to specify stream
The path of amount and resource requirement.
By each above-mentioned embodiment, the traffic engineering of particular flow rate in BIER domains, can be completed, be compensate for
The shortcoming of resource guarantee can not be carried out in BIER domains to particular flow rate, the applicable scene of BIER technologies is greatly extended
And deployed environment, to high-priority traffic, including flux of multicast and unicast traffic, traffic engineering function can be completed, is had
There is good adaptability and development prospect.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realizes that they can be concentrated on single computing device, or is distributed in multiple computing devices and is constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to by they
Storage is performed by computing device in the storage device, and in some cases, can be to be held different from order herein
They, are either fabricated to each integrated circuit modules or will be many in them by the shown or described step of row respectively
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware
Combined with software.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of traffic engineering tunnel building method, applied to explicitly replicating BIER networks based on position index, it is characterised in that
Including：
BIER nodes obtain the TE paths of the TE tunnel of traffic engineering of preset flow；
The BIER nodes are interacted for setting up institute by predetermined signaling with other BIER nodes on the TE paths
State the TE information needed for traffic engineering tunnel；
The BIER nodes set up the traffic engineering tunnel according to the TE information.
2. according to the method described in claim 1, it is characterised in that the TE information is for determining the traffic engineering tunnel
The information of multiprotocol label switching MPLS label and/or resource reservation information.
3. method according to claim 2, it is characterised in that the TE information includes at least one of：
The expense in the TE paths, the bandwidth in the TE paths, the son of BFR-ID, BIER node of BIER nodes
The set identification SI of bit-string length BSL, BIER node of domain identifier Sub-Domain-ID, BIER node.
4. according to the method described in claim 1, it is characterised in that obtain the institute of the traffic engineering tunnel of the preset flow
Stating TE paths includes：
The BIER nodes on the TE paths receive the TE that the BIER network-based controls node is sent
Path, wherein, the TE paths are that the control node is obtained according to the calculating of the topology information of the BIER networks
's.
5. according to the method described in claim 1, it is characterised in that obtain the institute of the traffic engineering tunnel of the preset flow
Stating TE paths includes：
The entrance BIER nodes of the preset flow calculate the flow according to the topology information of the BIER networks
The TE paths, or obtain the TE paths from computing module or controller.
6. according to the method described in claim 1, it is characterised in that according to the TE information, set up the traffic engineering tunnel bag
Include：
The BIER nodes on the TE paths distribute MPLS label, to set up according to the TE information
State traffic engineering tunnel.
7. according to the method described in claim 1, it is characterised in that according to the TE information, set up the traffic engineering tunnel also
Including：
Exist in the BIER networks and do not support BIER to forward or do not support BIER TE the first BIER nodes
In the case of, arrived by setting up single tunnel or point between the 2nd BIER nodes and the first BIER nodes
The mode of multipoint channel, has connected the BIER nodes for the support BIER TE being connected across the first BIER nodes,
Wherein, the 2nd BIER nodes are BIER nodes adjacent with the first BIER nodes on the TE paths.
8. according to the method described in claim 1, it is characterised in that the TE paths include：
Strict explicit path or Loose explicit path.
9. a kind of traffic engineering tunnel sets up device, applied to the BIER nodes explicitly replicated based on position index in BIER networks
In, it is characterised in that including：
Acquisition module, the TE paths of the TE tunnel of traffic engineering for obtaining preset flow；
Interactive module, for being interacted by predetermined signaling with other BIER nodes on the TE paths for setting up
TE information needed for the traffic engineering tunnel；
Module is set up, for according to the TE information, setting up the traffic engineering tunnel.
10. device according to claim 9, it is characterised in that the acquisition module is used for：
The TE paths that the BIER network-based controls node is sent are received, wherein, the TE paths are institutes
State control node and calculate what is obtained according to the topology information of the BIER networks.
11. device according to claim 9, it is characterised in that the acquisition module is used for：
Calculate the TE paths of the flow according to the topology information of the BIER networks, or from computing module
Or controller obtains the TE paths.
12. device according to claim 9, it is characterised in that the module of setting up is used for：
According to the TE information, multiprotocol label switching MPLS label is distributed, to set up the traffic engineering tunnel.
13. device according to claim 9, it is characterised in that the module of setting up is additionally operable to：
Exist in the BIER networks and do not support BIER to forward or do not support BIER TE the first BIER nodes
In the case of, arrived by setting up single tunnel or point between the 2nd BIER nodes and the first BIER nodes
The mode of multipoint channel, has connected the BIER nodes for the support BIER TE being connected across the first BIER nodes,
Wherein, the 2nd BIER nodes are BIER nodes adjacent with the first BIER nodes on the TE paths.
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| CN201610032830.1A CN106982157B (en) | 2016-01-18 | 2016-01-18 | Traffic engineering tunnel establishment method and device |
| PCT/CN2016/089680 WO2017124709A1 (en) | 2016-01-18 | 2016-07-11 | Method of establishing traffic engineering tunnel and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966039A (en) * | 2018-08-29 | 2018-12-07 | 迈普通信技术股份有限公司 | A kind of method of multicasting and equipment |
| CN109474526A (en) * | 2017-09-07 | 2019-03-15 | 中兴通讯股份有限公司 | Notice method, equipment and the storage medium of BIER-MPLS label |
| CN109729012A (en) * | 2018-12-24 | 2019-05-07 | 新华三技术有限公司 | A kind of unicast message transmission method and device |
| WO2019165900A1 (en) * | 2018-03-02 | 2019-09-06 | 华为技术有限公司 | Method and device for processing multicast data packet |
| CN110620730A (en) * | 2018-06-20 | 2019-12-27 | 瞻博网络公司 | Bit indexed explicit copy (BIER) penultimate jump pop-up |
| JP2021517425A (en) * | 2018-03-30 | 2021-07-15 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Methods, devices, and systems for transmitting multicast packets |
| CN114301839A (en) * | 2020-09-22 | 2022-04-08 | 华为技术有限公司 | Multicast message transmission method and device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417657B (en) * | 2018-04-27 | 2022-05-17 | 华为技术有限公司 | Method and device for processing multicast data message |
| US10764082B2 (en) * | 2018-06-29 | 2020-09-01 | Nokia Solutions And Networks Oy | Supporting multicast over a network domain |
| CN112448876B (en) * | 2019-08-30 | 2023-04-07 | 中兴通讯股份有限公司 | Method and device for realizing message transmission |
| CN116016034B (en) * | 2023-02-14 | 2023-06-20 | 北京天弛网络有限公司 | SDN-based service path scheduling method and device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014006A (en) * | 2007-02-08 | 2007-08-08 | 华为技术有限公司 | Method, apparatus and system for deploying TE tunnel of traffic engineering |
| CN101132642A (en) * | 2007-09-21 | 2008-02-27 | 中兴通讯股份有限公司 | Method for establishing LSP tunnel in NGN based on MPLS-TE |
| CN101645822A (en) * | 2009-08-18 | 2010-02-10 | 杭州华三通信技术有限公司 | Traffic engineering tunnel building method and system |
| CN104283807A (en) * | 2014-09-17 | 2015-01-14 | 杭州华三通信技术有限公司 | TE tunnel building method and device |
| US20150078378A1 (en) * | 2013-09-17 | 2015-03-19 | Cisco Technology, Inc. | Bit Indexed Explicit Replication Using Multiprotocol Label Switching |
| US20150085635A1 (en) * | 2013-09-17 | 2015-03-26 | Cisco Technology, Inc. | Migration support for bit indexed explicit replication |
| CN104811387A (en) * | 2014-01-24 | 2015-07-29 | 思科技术公司 | Equal Cost Multi-path With Bit Indexed Explicit Replication |
| CN106572017A (en) * | 2015-10-09 | 2017-04-19 | 中兴通讯股份有限公司 | BIER information transmitting method, receiving method and device |
-
2016
- 2016-01-18 CN CN201610032830.1A patent/CN106982157B/en active Active
- 2016-07-11 WO PCT/CN2016/089680 patent/WO2017124709A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101014006A (en) * | 2007-02-08 | 2007-08-08 | 华为技术有限公司 | Method, apparatus and system for deploying TE tunnel of traffic engineering |
| CN101132642A (en) * | 2007-09-21 | 2008-02-27 | 中兴通讯股份有限公司 | Method for establishing LSP tunnel in NGN based on MPLS-TE |
| CN101645822A (en) * | 2009-08-18 | 2010-02-10 | 杭州华三通信技术有限公司 | Traffic engineering tunnel building method and system |
| US20150078378A1 (en) * | 2013-09-17 | 2015-03-19 | Cisco Technology, Inc. | Bit Indexed Explicit Replication Using Multiprotocol Label Switching |
| US20150085635A1 (en) * | 2013-09-17 | 2015-03-26 | Cisco Technology, Inc. | Migration support for bit indexed explicit replication |
| CN104811387A (en) * | 2014-01-24 | 2015-07-29 | 思科技术公司 | Equal Cost Multi-path With Bit Indexed Explicit Replication |
| CN104283807A (en) * | 2014-09-17 | 2015-01-14 | 杭州华三通信技术有限公司 | TE tunnel building method and device |
| CN106572017A (en) * | 2015-10-09 | 2017-04-19 | 中兴通讯股份有限公司 | BIER information transmitting method, receiving method and device |
Non-Patent Citations (2)
| Title |
|---|
| CISCO SYSTEMS,INC等: "Multicast using Bit Index Explicit Replication draft-ietf-bier-architecture-01", 《INTERNET ENGINEERING TASK FORCE INTERNET-DRAFT》 * |
| CISCO SYSTEMS,INC等: "Traffic Enginering for Bit Index Explicit Replication BIER-TE draft-eckert-bier-te-arch-02", 《INTERNET ENGINEERING TASK FORCE INTERNET-DRAFT》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474526A (en) * | 2017-09-07 | 2019-03-15 | 中兴通讯股份有限公司 | Notice method, equipment and the storage medium of BIER-MPLS label |
| US11233724B2 (en) | 2018-03-02 | 2022-01-25 | Huawei Technologies Co., Ltd. | Multicast data packet processing method, and apparatus |
| US11652735B2 (en) | 2018-03-02 | 2023-05-16 | Huawei Technologies Co., Ltd. | Multicast data packet processing method, and apparatus |
| WO2019165900A1 (en) * | 2018-03-02 | 2019-09-06 | 华为技术有限公司 | Method and device for processing multicast data packet |
| JP7050177B2 (en) | 2018-03-30 | 2022-04-07 | 華為技術有限公司 | How to carry multicast packets, devices, and systems |
| JP2021517425A (en) * | 2018-03-30 | 2021-07-15 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Methods, devices, and systems for transmitting multicast packets |
| US11736411B2 (en) | 2018-03-30 | 2023-08-22 | Huawei Technologies Co., Ltd. | Method, device, and system for transmitting multicast packet |
| CN110620730A (en) * | 2018-06-20 | 2019-12-27 | 瞻博网络公司 | Bit indexed explicit copy (BIER) penultimate jump pop-up |
| CN110620730B (en) * | 2018-06-20 | 2022-06-24 | 瞻博网络公司 | Bit indexed explicit copy (BIER) penultimate jump pop-up |
| CN108966039B (en) * | 2018-08-29 | 2021-09-21 | 迈普通信技术股份有限公司 | Multicast method and equipment |
| CN108966039A (en) * | 2018-08-29 | 2018-12-07 | 迈普通信技术股份有限公司 | A kind of method of multicasting and equipment |
| CN109729012B (en) * | 2018-12-24 | 2021-08-24 | 新华三技术有限公司 | Unicast message transmission method and device |
| CN109729012A (en) * | 2018-12-24 | 2019-05-07 | 新华三技术有限公司 | A kind of unicast message transmission method and device |
| CN114301839A (en) * | 2020-09-22 | 2022-04-08 | 华为技术有限公司 | Multicast message transmission method and device |
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|---|---|
| WO2017124709A1 (en) | 2017-07-27 |
| CN106982157B (en) | 2020-11-20 |
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