CN103248548B - The method and node of the E-tree business based on VPLS of realization - Google Patents
The method and node of the E-tree business based on VPLS of realization Download PDFInfo
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- CN103248548B CN103248548B CN201210027485.4A CN201210027485A CN103248548B CN 103248548 B CN103248548 B CN 103248548B CN 201210027485 A CN201210027485 A CN 201210027485A CN 103248548 B CN103248548 B CN 103248548B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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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
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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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
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
- H04L12/4645—Details on frame tagging
- H04L12/4666—Operational details on the addition or the stripping of a tag in a frame, e.g. at a provider edge node
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Abstract
The present invention provides a kind of method and node of the E tree business realized based on VPLS, this method includes：Node, which is automatically generated or received, is used for VLAN ID (VLAN ID) of the mark data message from piece-root grafting incoming link (AC) or leaf AC in the VPLS domains of normal structure fixed allocation；The node determines to send the AC attributes of the data message, the VLAN ID of the AC attributes is stamped to the data message and are sent.The method and node of E tree business of the above-mentioned realization based on VPLS, solve the problems, such as that manual configuration ROOT and Leaf VLAN ID are more complicated and elapsed time；And realize simply, smaller to existing protocol change, cost of implementation is relatively low.
Description
Technical field
The present invention relates to Ethernet tree (Ethernet Tree, abbreviation E-tree) technology, more particularly to a kind of realize to be based on
The method of the E-tree business of Virtual Private LAN Service (Virtual Private Lan Service, abbreviation VPLS) and
Node.
Background technology
Metro Ethernet Forum (Metro Ethernet Forum, MEF) defines two kinds of multiple spot Ethernet services：Multiple spot
To multiple spot (E-LAN) business and root to multiple spot (rooted multipoint, E-Tree) business.The difference of both business
Essentially consist in：All nodes of E-LAN can communicate, without any restrictions；And E-Tree has root (Root) and leaf
(Leaf) two kinds of node, cannot communicate between Leaf and Leaf, particular content refer to MEF6.1 and
MEF10.2。
Two layers of void of Internet Engineering Task group (The Internet Engineering Task Force, abbreviation IETF)
Intend the virtual private local that private network (Layer 2 Virtual Private Networks, abbreviation L2VPN) working group defines
Network service (Virtual Private Lan Service, abbreviation VPLS) is in IP/ multiprotocol label switching (MPLS) network
In, how point-to-multipoint connection is provided for Ethernet, it simulates the function of Ethernet switch, and the foundation of VPLS there are two kinds of sides
Formula：Based on tag distribution protocol (Label Distribute Protocol, abbreviation LDP) distribution label (IETF RFC4762)
Label (IETF RFC4761) is distributed with based on Border Gateway Protocol (Border Gateway Protocol, abbreviation BGP).But
It is that current VPLS does not provide the mechanism to communicate between any restrictions Leaf and Leaf, so as to generate in IP/ multiprotocol labels
The demand that E-Tree business is established on (MPLS) network is exchanged, major demands are as follows：It cannot be communicated between Leaf and leaf；
Need to support multiple Root access circuits (AC)；On same provider edge equipment (PE), can at the same time there are Root with
Leaf AC, are shown in Draft-key-12vpn-vpls-etree-reqt-04 in detail.Also define the main of some E-tree at the same time
Application scenarios, therefrom it can be seen that E-tree have very wide application prospect, as broadcasting/packet service, Internet access,
American Institute of Electrical and Electronics Engineers's (IEEE) 1588v2 clocks are synchronous, mobile retransmission network (Mobile Backhaul) net
Network, Virtual Private Network (VPN), equipment management network etc..So it is one that E-Tree business how is established on IP/MPLS networks
The problem of in the urgent need to address.
The prior art is identified by using virtual LAN (Virtual Local Area Network, abbreviation VLAN)
(ID) it is to come from Root or Leaf to carry out identification message, but Root and Leaf VLAN ID be by manual configuration, and
Expanded signalling is needed to carry out Root and Leaf VLAN notices, so more complicated and elapsed time.
The content of the invention
An embodiment of the present invention provides a kind of method and node for realizing the E-tree business based on VPLS, solves to match somebody with somebody by hand
The problem of putting Root and Leaf VLAN ID more complicated and elapsed time.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of E-tree business realized based on VPLS
Method, this method include：
Node is automatically generated or received in the VPLS domains of normal structure fixed allocation comes from piece-root grafting for mark data message
The VLAN ID of incoming link (AC) or leaf AC (VLAN ID)；
The node determines to send the AC attributes of the data message, and the AC attributes are stamped to the data message
VLAN ID are simultaneously sent.
Preferably, the node, which automatically generates, is used for VLAN of the mark data message from root AC or leaf AC in VPLS domains
ID, including：
The PE is (Im-RT+Ex-RT) or related from pseudo-wire type, entrance route target and the sum of outlet route target
Group mark (AGI) obtains the VLAN ID automatically.
Preferably, the node determines to send the AC attributes of the data message, and the AC is stamped to the data message
The VLAN ID of attribute and before sending, the method further includes：
The node sends the message comprising E-tree information to peer node and receives what the peer node was sent
The message of the E-tree information is included, the message includes label distribution (LDP) message and Border Gateway Protocol (BGP) updates
Message.
Preferably, the E-tree information carry in the interface parameters that the LDP message newly extends or the BGP more
In the group attribute of new information.
Preferably, the E-tree information is to carry to connect what the LDP message newly extended during pseudo-wire is established
In mouthful parameter either in the extended community attribute of the bgp update message or the bgp update message existing group attribute
In；Alternatively, the E-tree information is the extension group carried in the automatic discovery procedure of VPLS member in the bgp update message
In body attribute.
Preferably, the E-tree information include be used for indicate the node whether the configured information only containing leaf AC.
Preferably, the E-tree information is further included for judging whether the data message carries virtual LAN
(VLAN) tag protocol identifier (TPID) field of label.
Preferably, the node determines to send the AC attributes of the data message, and the AC is stamped to the data message
The VLAN ID of attribute and before sending, the method further includes：
The message for the carrying E-tree information that the node is sent according to the peer node of reception determines
Identical TPID parameter values have been locally configured.
Preferably, the node determines to send the AC attributes of the data message, and the AC is stamped to the data message
The VLAN ID of attribute and before sending, the method further includes：
The node receives the TPID parameter values for E-Tree of normal structure fixed allocation.
The embodiment of the present invention additionally provides a kind of node, which includes：
Acquisition module, is used for mark data message in the VPLS domains for automatically generating or receiving normal structure fixed allocation
VLAN ID (VLAN ID) from piece-root grafting incoming link (AC) or leaf AC；
Sending module, for determining the AC attributes of the transmission data message, stamps the data message AC and belongs to
The VLAN ID of property are simultaneously sent.
Preferably, the acquisition module, is specifically used for：
Identified from pseudo-wire type, entrance route target with exporting the sum of route target (Im-RT+Ex-RT) or relevant group
(AGI) the VLAN ID are obtained automatically.
Preferably, the node further includes：Determining module, the number of VLAN ID is stamped for being sent in the sending module
Before message, institute is included to what message of the peer node transmission comprising E-tree information and the reception peer node were sent
The message of E-tree information is stated, the message includes label distribution (LDP) message and Border Gateway Protocol (BGP) new information.
Preferably, the E-tree information carry in the interface parameters that the LDP message newly extends or the BGP more
In the group attribute of new information.
Preferably, the E-tree information include be used for indicate the node whether the configured information only containing leaf AC.
Preferably, the E-tree information is further included for judging whether the data message carries virtual LAN
(VLAN) tag protocol identifier (TPID) field of label.
The method and node of E-tree business of the above-mentioned realization based on VPLS, solve manual configuration ROOT and Leaf
VLAN ID are more complicated and the problem of elapsed time；And realize simply, smaller to existing protocol change, cost of implementation is relatively low.
Brief description of the drawings
Fig. 1 is the structure diagram of the typically E-tree embodiments based on VPLS；
Fig. 2 is the schematic diagram for the embodiment of the method one that the present invention realizes the E-tree business based on VPLS；
Fig. 3 is the schematic diagram for the embodiment of the method two that the present invention realizes the E-tree business based on VPLS；
Fig. 4 is the schematic diagram for the embodiment of the method three that the present invention realizes the E-tree business based on VPLS；
Fig. 5 is the structure diagram of node embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where there is no conflict, in the embodiment and embodiment in the application
Feature can mutually be combined.
An embodiment of the present invention provides one kind to realize based on the root of Virtual Private LAN Service (VPLS) to multiple spot (E-
Tree) method of business, this method include：
Step 1: node automatically generates or receives in the VPLS domains of normal structure fixed allocation to come for mark data message
From the VLAN ID of piece-root grafting incoming link (AC) or leaf AC (VLAN ID)；
Wherein, it is to come from Root AC or Leaf AC, Yi Zhongfang to have two methods to realize using VLAN ID identification messages
Method be by from pseudo-wire type (PW type), relevant group mark (Attachment Group Identifier, abbreviation AGI),
Alternatively, the sum of entrance route target and outlet route target (Import- route targets (Route-Target, abbreviation RT)+
Export-RT it is to come from Root AC or LeafAC that the VLAN ID) obtained automatically, which carry out identification message,；Another method is logical
It is to come from Root AC or Leaf AC to cross normal structure such as IEEE and distribute two fixed VLAN ID to carry out identification message.
Step 2: the node determines to send the AC attributes of the data message, the AC is stamped to the data message
The VLAN ID of attribute are simultaneously sent.
Before this step, can also include：The node to peer node send comprising E-tree information message with
And the message for including the E-tree information that the peer node is sent is received, the message disappears including label distribution (LDP)
Breath and Border Gateway Protocol (BGP) new information.
The E-tree information carries in the interface parameters that the LDP message newly extends or the bgp update message
Group attribute in.And the E-tree information is to carry to connect what the LDP message newly extended during pseudo-wire is established
In mouthful parameter either in the extended community attribute of the bgp update message or the bgp update message existing group attribute
In；Alternatively, the E-tree information is the extension group carried in the automatic discovery procedure of VPLS member in the bgp update message
In body attribute.
Wherein, the E-tree information include be used for indicate the node whether the configured information only containing leaf AC；Also
It can include being used for the tag protocol identifier (Tag for judging whether the data message carries virtual LAN (VLAN) label
Protocol Identifier, abbreviation TPID) field.When the PE is according to the carrying that the opposite end PE of reception is sent
The message of E-tree information determines just send the number for stamping VLAN ID after identical TPID parameter values have been locally configured
According to message.
In addition, the node can also receive the TPID parameters for E-Tree of normal structure such as IEEE fixed allocations
Value, E-Tree information does not carry in the message at this time, it is not necessary to consults, you can sends the data message for stamping VLAN ID.
As shown in Figure 1, being the structure diagram of the typically E-tree embodiments based on VPLS, the present embodiment turns from data
The method that the E-tree based on VPLS is realized in the introduction of hair aspect, this method comprise the following steps：
Step 101, PE1 configuration pseudo-line services, and be the attribute of each AC configuration leaf/roots；
The pseudo-line service of PE1 configurations includes the information such as configuration pseudo-wire ID, pseudo-wire type, peer node ID.It is specific same
RFC4447, is seldom introduced here.
Regulation goes pseudo-wire type the value that " mould " operation obtains to identify Root/Leaf VLAN.Specifically：
Root VLAN ID=(pseudo-wire type) MOD 4094+1
Leaf VLAN ID=(pseudo-wire type) MOD 4094+2
As shown in Figure 1, PE1 and PE2 configuration pseudo-wire types are 0X0005, then PE1 and PE2 carries out " mould " operation respectively,
Root VLAN ID：0X0005 mod 4094+1=6, Leaf VLAN ID：0X0005 mod 4094+2=7.
Step 102, PE2 configuration pseudo-line services, and be the attribute of each AC configuration leaf/roots；
Step 103, PE1 receive data message from AC2 (Leaf AC), and PE1 stamps Leaf VLAN ID (7) to identify
The message comes from leaf AC；
After step 104, PE2 receive data message by pseudo-wire (Pseudo Wire, abbreviation PW), by checking VLAN
ID, it is found that message comes from leaf AC, while after MAC Address forwards, it is found that outlet is AC4 (Leaf AC), so will abandon
Message.
As shown in Fig. 2, it is the schematic diagram for the embodiment of the method one that the present invention realizes the E-tree business based on VPLS, in number
It is that to carry out identification message by using VLAN ID be to come from root AC or leaf node according to the aspect embodiment, and is based on E-tree
The principle that cannot be communicated between leaf node and leaf node, receiving node determine whether it is dropping packets, are also to continue with turning
Transmit messages text.What is proposed in the signaling aspect embodiment is based on RFC4762 is established on the method for VPLS using LDP, passes through weight
A new interface parameters is newly defined to carry E-tree relevant informations so as to fulfill negotiation E-tree functions.As shown in Fig. 2, base
Comprise the following steps in the method for E-tree of the LDP protocol realizations based on VPLS：
Step 201, PE1 send the LDP label mapping message for carrying E-tree information to PE2；
E-tree information includes：It is optional to carry TPID fields for indicating whether this node only contains leaf AC,
TPID fields are used to judge whether the data message carries VLAN tag, which needs two endpoints to hold consultation, only
PE1 and PE2 both ends all carry identical parameter value, and PW is just enabled；TPID can not also be carried, a system is defined by IEEE
One TPID, you can that need not consult.
If carry E-tree information in the LDP mapping messages that PE1 is sent to PE2, then illustrate that PE1 supports E-tree
Function, otherwise, it means that not supporting E-tree functions.
LDP label mapping message is additionally operable to distribute label for PW, and the specific method for distributing label is shown in RFC4762, here
Excessive introduction is not done.
Step 202, PE2 send the LDP label mapping message for carrying E-tree information to PE1；
E-tree information includes：It is optional to carry TPID fields for indicating whether this node only contains leaf AC,
TPID fields are used to judge whether the data message carries VLAN tag, which needs two endpoints to hold consultation, only
PE1 and PE2 both ends all carry identical parameter value, and PW just can use；TPID can not also be carried, a system is defined by IEEE
One TPID, you can that need not consult.
If PE2 carries E-tree information to the LDP label mapping message that PE1 is sent, then illustrates that PE2 supports E-
Tree functions, otherwise, it means that not supporting E-tree functions.
Step 203, PE2 are verified and known after receiving LDP label mapping message：It is local whether to also provided same TPID ginsengs
Whether number, and PE1 only contain leaf AC；
Specifically, if the E-tree information carried in LDP label mapping message includes TPID, then only PE1 and PE2
Both ends are configured with identical TPID parameter values, then the PW at PE2 ends is just enabled；If the E- carried in LDP label mapping message
Tree information does not carry TPID, i.e., defines a unified TPID by IEEE, it is not necessary to consult, then PE2 receives LDP label
Only need to know after mapping message：Whether PE1 only contains leaf AC.
If PE1 only contains leaf AC, then PE2 will decide whether according to leaf AC with the leaf AC principles that cannot be communicated
Dropping packets.
Step 204, PE1 are verified after receiving LDP label mapping message：It is local whether to also provided same TPID parameters, with
And whether PE2 only contains leaf AC.
Specifically, if the E-tree information carried in LDP label mapping message includes TPID, then only PE1 and PE2
Both ends are configured with identical TPID parameter values, then the PW at PE1 ends is just enabled；If the E- carried in LDP label mapping message
Tree information does not carry TPID, i.e., defines a unified TPID by IEEE, it is not necessary to consult, then PE2 receives LDP label
Only need to know after mapping message：Whether PE2 only contains leaf AC.
As shown in figure 3, it is the schematic diagram for the embodiment of the method two that the present invention realizes the E-tree business based on VPLS, in number
It is that to carry out identification message by using VLAN ID be to come from root AC or leaf node according to the aspect embodiment, and is based on E-tree
The principle that cannot be communicated between leaf node and leaf node, receiving node determine whether it is dropping packets, are also to continue with turning
Transmit messages text.The related letters of E-tree are carried in the signaling aspect embodiment is based on 2 layers of extended community attribute defined in RFC4761
Breath is so as to fulfill negotiation E-tree functions.As shown in figure 3, the method for realizing the E-tree based on VPLS based on bgp protocol includes
Following steps：
Step 301, PE1 send the bgp update message for carrying E-tree information to PE2；
Specifically, the premise that PE1 sends the VPLS new informations to PE2 is that PE1 is configured with virtual switch instance
(Virtual Switch Instance, abbreviation VSI), and BGP peer nodes are specified as the operation such as PE2.
VPLS bgp networks layer is also carried in bgp update message up to information (NLRI) to be used for for pseudo-wire (PW) distribution mark
Label, the specific method for distributing label are shown in RFC4761, do not introduce here.
E-tree information is carried in bgp update message, specifically, is extended 2 layers of new extended community attribute and is held
The information is carried, or a type lengths values (Type-length-value, letter are extended in existing 2 layers of extended community attribute
Claim TLV) carry the information.E-tree information includes：It is optional to carry for indicating whether this node only contains leaf AC
TPID fields, TPID fields are used to judge whether the data message carries VLAN tag, which needs two endpoints to carry out
Consult, only PE1 and PE2 both ends all carry identical parameter value, and PW just can use；TPID can not also be carried, passes through IEEE
Define a unified TPID, you can that need not consult.
If PE1 carries E-tree information to the bgp update message that PE2 is sent, then illustrates that PE1 supports E-tree work(
Can, otherwise, it means that not supporting E-tree functions.
Step 302, PE2 send the bgp update message for carrying E-tree information to PE1；
Specifically, the premise that PE2 sends the VPLS new informations to PE1 is that PE2 is configured with VSI, and specifies BGP pairs
End node is the operation such as PE1.
VPLS BGP NLRI are also carried in bgp update message and are used to be PW distribution labels, specifically the method for distribution label
See RFC4761, do not do excessive introduction here.
E-tree information is carried in bgp update message, specifically, is extended 2 layers of new extended community attribute and is held
The information is carried, or a TLV is extended to carry the information in existing 2 layers of extended community attribute.The E-tree information contents
With the E-tree contents described in step 201.
If PE2 carries E-tree information to the bgp update message that PE1 is sent, then illustrates that PE2 supports E-tree work(
Can, otherwise, it means that not supporting E-tree functions.
Step 303, PE2 are verified after receiving bgp update message：It is local whether to also provided same VSI, same TPID ginseng
Whether number, and PE2 only contain leaf AC；
Specifically, if the E-tree information carried in bgp update message includes TPID, then only PE1 and PE2 both ends
Identical TPID parameter values are configured with, then the PW at PE2 ends is just enabled；If the E-tree information carried in bgp update message is not
TPID is carried, i.e., a unified TPID is defined by IEEE, it is not necessary to consult, then PE2, which receives bgp update message, only to be needed
Inspection is known：It is local whether to also provided whether same VSI and PE2 only contains leaf AC.
Step 304, PE1 are verified after receiving bgp update message：It is local whether to also provided same VSI, same TPID ginseng
Whether number, and PE2 only contain leaf AC.
Specifically, if the E-tree information carried in bgp update message includes TPID, then only PE1 and PE2 both ends
Identical TPID parameter values are configured with, then the PW at PE1 ends is just enabled；If the E-tree information carried in bgp update message is not
TPID is carried, i.e., a unified TPID is defined by IEEE, it is not necessary to consult, then PE1, which receives bgp update message, only to be needed
Inspection is known：It is local whether to also provided whether same VSI and PE1 only contains leaf AC.
As shown in figure 4, be the present invention realize the E-tree business based on VPLS embodiment of the method three schematic diagram, this reality
Apply the prioritization scheme that example is only the method for realizing the E-tree based on VPLS.BGP of the embodiment based on VPLS is sent out automatically
Now extended, the BGP auto discovery mechanisms of VPLS can be shown in RFC6074.As shown in figure 4, it is based on BGP auto discovery mechanisms
Realize that the method for the E-tree based on VPLS comprises the following steps：
Step 401, node 1 send the BGP of carrying E-tree information by enabling all bgp sessions of VPLS address families
New information；
The RD information and some extended community attributes of mark VPLS examples, specific renewal are carried in bgp update message
The information carried in message is shown in RFC6074.Here, we extend a new group attribute and are used for carrying E-tree information.
Further, the bgp update message in the present embodiment is only used for finding the PE nodes in same VPLS examples, with PW's
Establish unrelated.The foundation of PW, which can use LDP agreements to establish (RFC4762), to use bgp protocol to establish (RFC4761).
It is used for carrying E-tree information by extending a new group attribute, it is therefore an objective to it is desirable that the node energy in same VPLS examples
It is enough further know which node only contains leaf AC, it is known that after this information, it is possible to directly abandon leaf in transmitting terminal
Message between son and leaf, so as to save flow.
Here, whether only E-tree information includes identifies the node for the sending bgp update message information containing leaf node
And whether enable E-tree functional informations.
Step 402, receive bgp update message node 2 preserve VPLS examples information and E-tree information.
The method of E-tree business of the above-mentioned realization based on VPLS, by obtaining Root and Leaf VLAN ID automatically,
Solve the problems, such as that manual configuration ROOT and Leaf VLAN ID are more complicated and elapsed time；And realize simply, to existing
There is protocol change smaller, cost of implementation is relatively low.
As shown in figure 5, being the structure diagram of node embodiment of the present invention, which includes acquisition module 51 and sends mould
Block 52, acquisition module, comes for mark data message in the VPLS domains for automatically generating or receiving normal structure fixed allocation
From the VLAN ID of piece-root grafting incoming link (AC) or leaf AC (VLAN ID)；Sending module, for determining to send the data
The AC attributes of message, stamp the data message VLAN ID of the AC attributes and send.
Wherein, the acquisition module, is specifically used for：From pseudo-wire type, entrance route target with exporting the sum of route target
(Im-RT+Ex-RT) or relevant group mark (AGI) obtains the VLAN ID automatically.
In addition, the node further includes：Determining module, the datagram of VLANID is stamped for being sent in the sending module
Before text, the E- is included to what message of the peer node transmission comprising E-tree information and the reception peer node were sent
The message of tree information, the message include label distribution (LDP) message and Border Gateway Protocol (BGP) new information.
The E-tree information can carry in the interface parameters that the LDP message newly extends or the bgp update
In the group attribute of message.The E-tree information includes being used to indicate the node whether believe by the instruction only containing leaf AC
Breath；It can also include being used for the tag protocol identifier for judging whether the data message carries virtual LAN (VLAN) label
(TPID) field.
Above-mentioned node can be PE.
Above-mentioned node, by obtaining ROOT and Leaf VLAN ID automatically, solves manual configuration ROOT and Leaf
VLAN ID are more complicated and the problem of elapsed time.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and above procedure can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, can also use the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, reference only to preferred embodiment to this hair
It is bright to be described in detail.It will be understood by those of ordinary skill in the art that it can modify to technical scheme
Or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, the claim model in the present invention should all be covered
Among enclosing.
Claims (11)
1. a kind of method for the Ethernet tree E-Tree business realized based on Virtual Private LAN Service VPLS, its feature exist
In this method includes：
Node, which automatically generates, is used for virtual local area network mark of the mark data message from piece-root grafting incoming link AC or leaf AC in VPLS domains
Know VLAN ID；
The node determines to send the AC attributes of the data message, and the VLAN of the AC attributes is stamped to the data message
ID is simultaneously sent；
The node, which automatically generates, is used for VLAN ID of the mark data message from root AC or leaf AC in VPLS domains, including：
Provider edge equipment (PE) is identified from pseudo-wire type, entrance route target with exporting the sum of route target or relevant group
(AGI) the VLAN ID are obtained automatically；
The node determines to send the AC attributes of the data message, and the VLAN of the AC attributes is stamped to the data message
ID and send before, the method further includes：
The node sends the message comprising E-tree information to peer node and receives including for the peer node transmission
The message of the E-tree information；The E-tree information include be used for indicate the node whether the instruction only containing leaf AC
Information.
2. according to the method described in claim 1, it is characterized in that：
The message includes label distribution LDP message and Border Gateway Protocol (BGP) new information.
3. according to the method described in claim 2, it is characterized in that：
The E-tree information carries in the interface parameters that the LDP message newly extends or the group of the bgp update message
In body attribute.
4. according to the method described in claim 3, it is characterized in that：
The E-tree information be during establishing pseudo-wire carry in the interface parameters that the LDP message newly extends or
In the extended community attribute of the bgp update message or in the existing group attribute of the bgp update message；Or
The E-tree information is the extended community category carried in the automatic discovery procedure of VPLS member in the bgp update message
In property.
5. according to the method described in claim 1, it is characterized in that：
The E-tree information is further included for judging whether the data message carries the label of virtual LAN VLAN label
Protocol-identifier TPID fields.
6. according to the method described in claim 5, it is characterized in that：
The node determines to send the AC attributes of the data message, and the VLAN of the AC attributes is stamped to the data message
ID and send before, the method further includes：
The message for the carrying E-tree information that the node is sent according to the peer node of reception determines local
It is configured with identical TPID parameter values.
7. according to the method described in claim 2, it is characterized in that：
The node determines to send the AC attributes of the data message, and the VLAN of the AC attributes is stamped to the data message
ID and send before, the method further includes：
The node receives the TPID parameter values for E-Tree of normal structure fixed allocation.
8. a kind of node, it is characterised in that the node includes：
Acquisition module, is used for mark data message from the virtual of piece-root grafting incoming link AC or leaf AC for automatically generating in VPLS domains
LAN ID VLAN ID；
Sending module, for determining the AC attributes of the transmission data message, stamps the data message AC attributes
VLAN ID are simultaneously sent；
Determining module, for before the sending module sends and stamps the data message of VLAN ID, sending and wrapping to peer node
The message for including the E-tree information that the message of the information containing E-tree and the reception peer node are sent；
The E-tree information include be used for indicate the node whether the configured information only containing leaf AC；
The acquisition module, is specifically used for：
From pseudo-wire type, entrance route target with exporting described in the sum of route target or the automatic acquisitions of relevant group mark AGI
VLAN ID。
9. node according to claim 8, it is characterised in that
The message includes label distribution LDP message and Border Gateway Protocol (BGP) new information.
10. node according to claim 9, it is characterised in that：
The E-tree information carries in the interface parameters that the LDP message newly extends or the group of the bgp update message
In body attribute.
11. node according to claim 8, it is characterised in that：
The E-tree information is further included for judging whether the data message carries the label of virtual LAN VLAN label
Protocol-identifier TPID fields.
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| PCT/CN2013/071509 WO2013117165A1 (en) | 2012-02-08 | 2013-02-07 | Method and node for realizing e-tree service based on vpls |
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| CN109600265B (en) * | 2018-12-20 | 2021-11-12 | 新华三技术有限公司 | Access circuit AC configuration information issuing method, device and server |
| CN111711555B (en) * | 2020-05-29 | 2022-10-21 | 新华三信息安全技术有限公司 | Message processing method and device |
| CN113542136B (en) * | 2021-06-07 | 2022-11-18 | 新华三信息安全技术有限公司 | Interface attribute adjusting method and device |
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| CN102340446A (en) * | 2010-07-20 | 2012-02-01 | 华为技术有限公司 | Method for realizing Ethernet-tree (E-tree) service in virtual private local area network service (VPLS) network and provider edge (PE) equipment |
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| US20040165600A1 (en) * | 2003-02-21 | 2004-08-26 | Alcatel | Customer site bridged emulated LAN services via provider provisioned connections |
| US8737399B2 (en) * | 2010-01-05 | 2014-05-27 | Futurewei Technologies, Inc. | Enhanced hierarchical virtual private local area network service (VPLS) system and method for Ethernet-tree (E-Tree) services |
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| WO2006118714A2 (en) * | 2005-04-28 | 2006-11-09 | Cisco Technology, Inc. | A comprehensive model for vpls |
| CN101360062A (en) * | 2008-09-17 | 2009-02-04 | 中兴通讯股份有限公司 | Method and system implementing service of multi-point to multi-point Ethernet with root node |
| CN102170385A (en) * | 2010-02-27 | 2011-08-31 | 华为技术有限公司 | Method for transmitting Ethernet frame in Ethernet tree business and provider edge device |
| CN102340446A (en) * | 2010-07-20 | 2012-02-01 | 华为技术有限公司 | Method for realizing Ethernet-tree (E-tree) service in virtual private local area network service (VPLS) network and provider edge (PE) equipment |
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