CN106254203A - A kind of message forwarding method and device - Google Patents
A kind of message forwarding method and device Download PDFInfo
- Publication number
- CN106254203A CN106254203A CN201610807986.2A CN201610807986A CN106254203A CN 106254203 A CN106254203 A CN 106254203A CN 201610807986 A CN201610807986 A CN 201610807986A CN 106254203 A CN106254203 A CN 106254203A
- Authority
- CN
- China
- Prior art keywords
- dhcp
- vtep equipment
- message
- forwarding unit
- dynamic host
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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]
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention provides a kind of message forwarding method and device, and described method includes: when receiving the dhcp broadcast message that virtual machine VM sends, described dhcp broadcast message is converted to DHCP unicast message；Wherein, the destination address of described DHCP unicast message is the address of the Dynamic Host Configuration Protocol server that a described VTEP equipment connects；Described DHCP unicast message is sent to described Dynamic Host Configuration Protocol server.The application embodiment of the present invention can reduce the limitation of network design, prevents from occurring DHCP message to flood in network.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of message forwarding method and device.
Background technology
EVPN (Ethernet Virtual Private Network, ether VPN (virtual private network)) network and BGP
(Border Gateway Protocol, Border Gateway Protocol)/MPLS (Multi-Protocol Label Switching, many
Protocol label exchanges) network structure of IP (Internet Protocol, Internet protocol) VPN is similar, in order to realize each station
Intercommunication between point (Site), on PE (Provider Edge, the service provider network edge) equipment that operator backbone is online
Set up EVPN example and access CE (Customer Edge, the customer network edge) equipment of each website, simultaneously between each PE
Set up neighborhood and MPLS lsp tunnel.
In EVPN network, when VM (Virtual Machine, virtual machine) (CE in EVPN network) reaches the standard grade, VM needs
DHCP message application IP address is sent to Dynamic Host Configuration Protocol server.
But found by practice, in existing EVPN network, in order to the DHCP message enabling VM to send reaches DHCP
Server, needs at VTEP (VXLAN (virtual Extensible Local Area Network, virtual expansible local
Net) Tunnel End Point, VXLAN tunneling termination) set up between equipment (PE in EVPN network) and Dynamic Host Configuration Protocol server
VXLAN binding relationship, this configuration limitation is the biggest.
Summary of the invention
The present invention provides a kind of message forwarding method and device, with solve existing EVPN network needs VTEP equipment with
The network that VXLAN binding relationship causes is set up so that the DHCP message of guarantee VM can arrive Dynamic Host Configuration Protocol server between Dynamic Host Configuration Protocol server
The problem that configuration limitation is big.
The embodiment of the present invention provides a kind of message forwarding method, is applied to first in ether VLAN EVPN network
Virtual expansible LAN tunneling termination VTEP equipment, the VTEP equipment in described EVPN network enables DynamicHost configuration and assists
View DHCP relay Relay function, described method includes:
When receiving the dhcp broadcast message that virtual machine VM sends, described dhcp broadcast message is converted to DHCP clean culture
Message；Wherein, the destination address of described DHCP unicast message is the address of the Dynamic Host Configuration Protocol server that a described VTEP equipment connects；
Described DHCP unicast message is sent to described Dynamic Host Configuration Protocol server.
The embodiment of the present invention provides a kind of apparatus for forwarding message, is applied to first in ether VLAN EVPN network
Virtual expansible LAN tunneling termination VTEP equipment, the VTEP equipment in described EVPN network enables DynamicHost configuration and assists
View DHCP relay Relay function, described device includes:
Receive unit, the dhcp broadcast message sent for sink virtual machine VM；
Converting unit, for being converted to DHCP unicast message by described dhcp broadcast message；Wherein, described DHCP clean culture report
The destination address of literary composition is the address of the Dynamic Host Configuration Protocol server that a described VTEP equipment connects；
Transmitting element, for being sent to described Dynamic Host Configuration Protocol server by described DHCP unicast message.
The application embodiment of the present invention, by enabling DHCP Relay function to VTEP equipment in EVPN network, when first
When VTEP equipment receives the dhcp broadcast message that VM sends, this dhcp broadcast message can be converted to destination address is self
The DHCP unicast message of the address of the Dynamic Host Configuration Protocol server connected, and send it to the Dynamic Host Configuration Protocol server self connected, thus, no
In the case of needing the VXLAN relation setting up Dynamic Host Configuration Protocol server and VTEP equipment to bind again, it is achieved that the DHCP message that VM sends
Dynamic Host Configuration Protocol server can be reached, make full use of the performance that VTEP equipment three-layer network closes, decrease the limitation of network design.This
Outward, a VTEP equipment is sent to Dynamic Host Configuration Protocol server by the dhcp broadcast message received is converted to DHCP unicast message,
Decrease the quantity of broadcasting packet in network, prevent from network occurring DHCP message flood.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of message forwarding method that the embodiment of the present invention provides；
Fig. 2 is the configuration diagram of a kind of concrete application scenarios that the embodiment of the present invention provides；
Fig. 3 is the structural representation of a kind of apparatus for forwarding message that the embodiment of the present invention provides；
Fig. 4 is the structural representation of the another kind of apparatus for forwarding message that the embodiment of the present invention provides；
Fig. 5 is the structural representation of the another kind of apparatus for forwarding message that the embodiment of the present invention provides；
Fig. 6 is the structural representation of the another kind of apparatus for forwarding message that the embodiment of the present invention provides.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the embodiment of the present invention, and make the present invention real
Execute the above-mentioned purpose of example, feature and advantage can become apparent from understandable, below in conjunction with the accompanying drawings to technical side in the embodiment of the present invention
Case is described in further detail.
Refer to the schematic flow sheet of a kind of message forwarding method that Fig. 1, Fig. 1 provide, the method for the embodiment of the present invention
Can apply to the VTEP equipment in EVPN network, as it is shown in figure 1, the method may comprise steps of:
Step 101, when receive VM send dhcp broadcast message time, this dhcp broadcast message is converted to DHCP clean culture
Message；Wherein, the destination address of this DHCP unicast message is the address of the Dynamic Host Configuration Protocol server that a VTEP equipment connects.
In the embodiment of the present invention, a VTEP equipment is also not specific to a certain fixing VTEP equipment, but may refer to
Arbitrary VTEP equipment in EVPN network, the embodiment of the present invention is follow-up no longer to be repeated.
In the embodiment of the present invention, need VTEP equipment each in EVPN network is all enabled DHCP Relay (relaying) function,
Thus, the dhcp broadcast message received can be converted to DHCP unicast message and be sent to VTEP equipment by VTEP equipment.
Correspondingly, in embodiments of the present invention, when a VTEP equipment receives the dhcp broadcast message that VM sends, the
The address of the Dynamic Host Configuration Protocol server that one VTEP equipment can connect according to self, is converted to DHCP clean culture report by this dhcp broadcast message
Literary composition, wherein, the destination address of this DHCP unicast message is the address of the Dynamic Host Configuration Protocol server that a VTEP equipment connects.
Step 102, DHCP unicast message is sent to Dynamic Host Configuration Protocol server.
In the embodiment of the present invention, after dhcp broadcast message is converted to DHCP unicast message by a VTEP equipment, can be by
This DHCP unicast message is sent to the Dynamic Host Configuration Protocol server that self connects.
Wherein, in embodiments of the present invention, after Dynamic Host Configuration Protocol server receives the DHCP unicast message that VTEP equipment sends
The processing mode that processing mode receives dhcp broadcast message with Dynamic Host Configuration Protocol server in prior art is similar, the embodiment of the present invention
Do not repeat at this.
Visible, in the method flow shown in Fig. 1, by the VTEP equipment in EVPN network is enabled DHCP Relay merit
Can, thus, when EVPN network receives dhcp broadcast message, can be by dhcp broadcast message be converted to DHCP unicast message
It is sent to Dynamic Host Configuration Protocol server, it is no longer necessary in the case of setting up the VXLAN relation binding of Dynamic Host Configuration Protocol server and VTEP equipment, it is achieved
The DHCP message that VM sends can reach Dynamic Host Configuration Protocol server, makes full use of the performance that VTEP equipment three-layer network closes, decreases net
The limitation that network is disposed.Additionally, VTEP equipment sends by the dhcp broadcast message received is converted to DHCP unicast message
To Dynamic Host Configuration Protocol server, decrease the quantity of broadcasting packet in network, prevent from network occurring DHCP message flood.
Further, in embodiments of the present invention, it is contemplated that after a VTEP equipment receives dhcp broadcast message, remove
This dhcp broadcast message can be converted to DHCP unicast message and be sent to outside the Dynamic Host Configuration Protocol server self connected, also understand and incite somebody to action this
Dhcp broadcast message is transmitted in EVPN network and other VTEP equipment self establishing VXLAN tunnel；Due to EVPN network
In each VTEP equipment be required to enable DHCP Relay function, therefore, this other VTEP equipment receives this dhcp broadcast message
Afterwards, dhcp broadcast message also can be converted to the Dynamic Host Configuration Protocol server that DHCP unicast message is sent to self and connects.
In this case, receive when multiple in EVPN network (being assumed to be N, N is the positive integer more than or equal to 2) VTEP equipment
During to same Dynamic Host Configuration Protocol server, the dhcp broadcast message sent for the arbitrary VM under this N number of VTEP equipment, Dynamic Host Configuration Protocol server is equal
Can receive the DHCP unicast message of N number of correspondence, when n is large, the workload of Dynamic Host Configuration Protocol server can be excessive, and DHCP holds
It is vulnerable to message aggression.
In order to avoid above-mentioned situation occurs, in embodiments of the present invention, for EVPN network connects same DHCP service
Multiple VTEP equipment of device, it may be determined that go out one or more appointment forwarding unit, wherein, be confirmed as specifying forwarding unit
VTEP equipment (also referred to herein simply as specifying forwarding unit) needs to send DHCP message to Dynamic Host Configuration Protocol server, and is not determined to refer to
The VTEP equipment determining forwarding unit then need not send DHCP message to Dynamic Host Configuration Protocol server.
Accordingly, as the optional embodiment of one, in above-mentioned steps 101, DHCP unicast message is sent to DHCP
Before server, it is also possible to comprise the following steps:
11), judge whether a VTEP equipment is to specify forwarding unit；Wherein, this appointment forwarding unit is EVPN network
In the VTEP equipment of the same Dynamic Host Configuration Protocol server of middle connection, the appointed VTEP for sending DHCP message to Dynamic Host Configuration Protocol server sets
Standby；
12) if, it is determined that perform to send DHCP unicast message to state the step of Dynamic Host Configuration Protocol server.
In this embodiment, in order to reduce the DHCP unicast message quantity that Dynamic Host Configuration Protocol server receives, reduce DHCP clothes
The workload of business device, for connecting multiple VTEP equipment of same Dynamic Host Configuration Protocol server, determines one from the plurality of VTEP equipment
Individual or multiple appointment forwarding units (connect the quantity specifying forwarding unit in the VTEP equipment of same Dynamic Host Configuration Protocol server less than connecting
The quantity of the VTEP equipment of this same Dynamic Host Configuration Protocol server).
When a VTEP equipment receives the dhcp broadcast message that VM sends, a VTEP equipment needs first to determine self
Whether it is to specify forwarding unit, if self being to specify forwarding unit, the i.e. the oneth VTEP equipment to need to Dynamic Host Configuration Protocol server to send
DHCP unicast message, then a VTEP equipment needs the dhcp broadcast message received to be converted to DHCP unicast message, concurrently
Give Dynamic Host Configuration Protocol server.
Preferably, in embodiments of the present invention, in order to reduce the quantity of DHCP message that Dynamic Host Configuration Protocol server receives
Simultaneously, it is ensured that business will not be interrupted due to single VTEP equipment fault, connects in the VTEP equipment of same Dynamic Host Configuration Protocol server
Appointment forwarding unit can be 2, i.e. for connect same Dynamic Host Configuration Protocol server multiple VTEP equipment under VM send
Dhcp broadcast message, all can have 2 to specify forwarding unit to send corresponding DHCP unicast message to Dynamic Host Configuration Protocol server.
Further, in embodiments of the present invention, when a VTEP equipment is not to specify forwarding unit, a VTEP sets
Standby can being sent to by this dhcp broadcast message specifies forwarding unit, is converted to by dhcp broadcast message by specifying forwarding unit
DHCP unicast message, and it is sent to Dynamic Host Configuration Protocol server.In a further mode of operation, when a VTEP equipment be not specify forwarding unit
Time, it is possible to abandon this dhcp broadcast message.
Additionally, when a VTEP equipment is for specifying forwarding unit, and when the quantity of appointment forwarding unit is multiple, first
VTEP equipment except need to be converted to the dhcp broadcast message received DHCP unicast message and be sent to Dynamic Host Configuration Protocol server it
Outward, in addition it is also necessary to this dhcp broadcast message is transmitted to other and specifies forwarding unit, specified forwarding unit by this DHCP by this other
Broadcasting packet is converted to DHCP unicast message, and is sent to Dynamic Host Configuration Protocol server.
Wherein, a VTEP equipment dhcp broadcast message is transmitted to specify forwarding unit or other specify forwarding unit it
After, this appointment forwarding unit or other specify forwarding unit to the handling process of dhcp broadcast message with a VTEP equipment for referring to
When determining forwarding unit, the handling process to this dhcp broadcast message is similar to, and the embodiment of the present invention does not repeats them here.
As the optional embodiment of one, above-mentioned steps 11) in, it is judged that whether a VTEP equipment is to specify forwarding to set
Standby, may comprise steps of:
111), inquiry local maintenance appointment forwarding unit information, this appointment forwarding unit information include specify forwarding set
Standby address information；
112) if specifying forwarding unit information to include the address of a VTEP equipment, then judge that a VTEP equipment is
Specify forwarding unit；
113), otherwise, it is judged that a VTEP equipment is not to specify forwarding unit.
In this embodiment, in EVPN network, each VTEP equipment can specify forwarding unit information in local maintenance, should
Forwarding unit information is specified to include specifying the address information of forwarding unit.
Correspondingly, when a VTEP equipment receives dhcp broadcast message, a VTEP equipment can first inquire about this locality
The appointment forwarding unit information safeguarded, if the forwarding unit information of specifying of local maintenance includes the address (i.e. first of self
The address of VTEP equipment), then a VTEP equipment may determine that and self belongs to appointment forwarding unit；Otherwise, i.e. local maintenance
Specify the address not including self in forwarding unit information, then a VTEP equipment may determine that and self is not belonging to specify forwarding to set
Standby.
What deserves to be explained is, in embodiments of the present invention, when a VTEP equipment is not to specify forwarding unit or first
VTEP equipment is to specify forwarding unit, and when appointment forwarding unit quantity is multiple, a VTEP equipment can be with DHCP clean culture
The mode of message is to specifying forwarding unit or other appointment forwarding unit transmission DHCP message；Specify forwarding unit or other appointment
After forwarding unit receives the DHCP unicast message that a VTEP equipment sends, it may not be necessary to again carry out broadcasting packet to single
Report the conversion of literary composition, but directly the DHCP unicast message received can be sent to Dynamic Host Configuration Protocol server.
In the embodiment of the present invention, for connecting multiple VTEP equipment of same Dynamic Host Configuration Protocol server, can be by user (such as management
Member) by the way of static configuration, it is configured to one or more VTEP equipment specify forwarding unit；Or, it is possible to
By by multiple VTEP equipment of the same Dynamic Host Configuration Protocol server of this connection by election in the way of determine that one or more VTEP equipment is
Specify forwarding unit.
Accordingly, as the optional embodiment of one, in embodiments of the present invention, it is intended that forwarding unit can by with
Under type election determines:
EVPN BGP (Border is sent to remaining VTEP equipment in addition to a VTEP equipment in EVPN network
Gateway Protocol, Border Gateway Protocol) 5 class route messages, and receive what EVPN network remaining VTEP equipment interior sent
EVPN BGP 5 class route message；Wherein, this EVPN BGP 5 class route message carries this EVPN BGP 5 class road of transmission
The address of the Dynamic Host Configuration Protocol server connected by the VTEP equipment of message；
According to default election regulation, elect appointment forwarding unit with other target VTEP equipment；Wherein, this other target
VTEP equipment is the VTEP equipment being connected same Dynamic Host Configuration Protocol server with a VTEP equipment.
In this embodiment, it is contemplated that after each VTEP equipment in EVPN network enables DHCP Relay function,
Each VTEP equipment can send EVPN BGP route message, such as BGP5 class route message by remaining VTEP equipment in EVPN network
(illustrating as a example by BGP5 class route message below), therefore, it is possible to by this EVPN BGP 5 class route message is carried out
Extension, increases DHCP extended community attribute, and this DHCP extended community attribute can include the Dynamic Host Configuration Protocol server that VTEP equipment connects
Address.
Correspondingly, in this embodiment, after in EVPN network, each VTEP equipment enables DHCP Relay function, the
One VTEP equipment can send the route message of EVPN BGP 5 class after above-mentioned extension by remaining VTEP equipment in EVPN network, and
Receive the EVPN BGP 5 class route message that EVPN network remaining VTEP equipment interior sends.
Oneth VTEP equipment can obtain the Dynamic Host Configuration Protocol server carried in the EVPN BGP 5 class route message received
Address, determines other VTEP equipment (referred to herein as target VTEP equipment) being connected same Dynamic Host Configuration Protocol server with self, and presses
According to default election regulation, conduct an election with target VTEP equipment, to determine appointment forwarding unit, wherein, this default election regulation
Can determine according to information such as the address of VTEP, marks.
As an example it is assumed that above-mentioned default election regulation be the VTEP address address of EVPN tunnel (the VTEP equipment set up) relatively
2 little VTEP equipment as specifying forwarding unit, in mutual between VTEP equipment EVPN BGP 5 class route message except
Carry outside the address of Dynamic Host Configuration Protocol server, it is also possible to carry the VTEP address of self.
Oneth VTEP equipment receives the EVPN BGP 5 class route message that remaining VTEP equipment sends, and determines and oneself
After body connects the target VTEP equipment of same Dynamic Host Configuration Protocol server, VTEP address and each target VTEP that can compare self set
Standby VTEP address, and be defined as 2 less for VTEP address VTEP equipment specifying forwarding unit.
It should be appreciated that the mode above by the VTEP address comparing VTEP equipment conducts an election, to determine that appointment turns
The election regulation of the equipment of sending out is only to preset a kind of concrete example of election regulation in the embodiment of the present invention, and is not to this
The restriction of bright protection domain, the most in embodiments of the present invention, above-mentioned default election regulation can also be Else Rule, such as basis
MAC (Media Access Control, the media interviews control) address of VTEP equipment conducts an election, and the embodiment of the present invention exists
This repeats no more.
Visible, by connecting in EVPN network, multiple VTEP equipment of same Dynamic Host Configuration Protocol server determining, appointment forwarding sets
Standby, and sent DHCP message by specifying forwarding unit to be responsible for Dynamic Host Configuration Protocol server, non-designated forwarding unit then need not to DHCP
Server sends DHCP message, thus effectively reduces the quantity of the DHCP message that Dynamic Host Configuration Protocol server receives, it is to avoid DHCP
Server suffers message aggression；Additionally, be determined by the appointment forwarding unit of more than 2 or 2, it is avoided that again due to single VTEP
The service disconnection that equipment fault causes.
Further, in embodiments of the present invention, in EVPN network, each VTEP equipment can also monitor mutually presence,
When the non-designated forwarding unit in the VTEP equipment connecting same Dynamic Host Configuration Protocol server, to monitor appointment forwarding unit online, as by
Delaying machine in fault, the online VTEP equipment of the same Dynamic Host Configuration Protocol server of this connection can re-elect and determine that new appointment forwards and set
Standby.
Wherein, when the quantity specifying forwarding unit is multiple, can be the most tactile when arbitrary appointment forwarding unit is not online
Send out and re-elect, to ensure that the quantity specifying forwarding unit is multiple.
For example, in embodiments of the present invention, the transmission mechanism of EVPN BGP 5 class route message can be changed
Enter, in making EVPN network, between each VTEP equipment, periodically (this cycle can set according to actual scene) send EVPN BGP
5 class route messages, and then, when non-designated forwarding unit does not receives one or many in certain time (such as several cycles continuous)
During the EVPN BGP 5 class route message that individual appointment forwarding unit sends, can trigger and re-elect new appointment forwarding unit.
Further, in embodiments of the present invention, when there being new VTEP equipment to add EVPN network, this VTEP equipment is also
Appointment forwarding unit election, the Dynamic Host Configuration Protocol server connected according to self can be added, be connected same DHCP with other with self and take
VTEP equipment election (or re-electing) of business device specifies forwarding unit.
In order to make those skilled in the art be more fully understood that the technical scheme that the embodiment of the present invention provides, below in conjunction with specifically
Application scenarios technical scheme that the embodiment of the present invention is provided be described.
Refer to Fig. 2, the configuration diagram of a kind of concrete application scenarios provided for the embodiment of the present invention, as in figure 2 it is shown,
In this application scenarios, VTEP1, VTEP2, VTEP3 and VTEP4 connect same Dynamic Host Configuration Protocol server (IP address is 101.1.1.1),
Wherein, the VTEP address of VTEP1, VTEP2, VTEP3 and VTEP4 be respectively 1.1.1.1,2.2.2.2,3.3.3.3 and
4.4.4.4.Each VTEP equipment all sets up BGP EVPN neighbours with RR (Route Reflector, Router Reflector) equipment, passes through
The route reflection function of RR equipment, sets up EVPN VXLAN tunnel (hereinafter referred to as EVPN tunnel) before all of VTEP equipment,
Such as, VTEP1 sets up with VTEP2, VTEP3 and VTEP4 respectively tunnel (tunnel) 1, tunnel2 and tunnel3.
Based on this application scenarios, the message forwarding method that the embodiment of the present invention provides to realize flow process as follows:
1, VTEP1, VTEP2, VETP3 and VTEP4 all enable DHCP Relay function, cycle sexual intercourse before each VTEP equipment
EVPN BGP 5 class route message mutually, adds DHCP extended community attribute in this EVPN BGP 5 class route message, this group
The information that attribute carries at least includes:
A, transmission EVPN BGP 5 class route the VTEP address of the VTEP equipment of message；
The address of the Dynamic Host Configuration Protocol server that b, the VTEP equipment of transmission EVPN BGP 5 class route message connect.
Below as a example by the handling process of VTEP1 equipment, the handling process of other VTEP equipment is similar with it.
2, VTEP1 equipment determines be connected same DHCP service with self according to the EVPN BGP 5 class route message received
The VTEP equipment of device:
| Dynamic Host Configuration Protocol server address | The VTEP address of VTEP equipment |
| 101.1.1.1 | 1.1.1.1(VTEP1) |
| 101.1.1.1 | 2.2.2.2(VTEP2) |
| 101.1.1.1 | 3.3.3.3(VTEP3) |
| 101.1.1.1 | 4.4.4.4(VTEP4) |
3, VTEP1 compares self and is connected the VTEP address of other VTEP equipment of same Dynamic Host Configuration Protocol server with self,
It is defined as 2 less for VTEP address VTEP equipment specifying forwarding unit, i.e. VTEP1 and VTEP2 for specifying forwarding unit；
4, when VM1 reaches the standard grade, VM1 sends dhcp broadcast message, to apply for IP address.VTEP1 receives this dhcp broadcast
After message, on the one hand, this dhcp broadcast message is converted to the DHCP unicast message that purpose IP address is 101.1.1.1, concurrently
Give Dynamic Host Configuration Protocol server；On the other hand, this dhcp broadcast message is sent to VTEP2, VTEP2 this dhcp broadcast message is turned
After being changed to the DHCP unicast message that purpose IP address is 101.1.1.1, it is sent to Dynamic Host Configuration Protocol server.
In like manner, when VM2, VM3 or VM4 reach the standard grade, the most only send DHCP by VTEP1 and VTEP2 to Dynamic Host Configuration Protocol server mono-
Report literary composition, decrease the workload of Dynamic Host Configuration Protocol server.
5, in Preset Time, do not receive VTEP1 when VTEP3 and VTEP4 or/and VTEP2 send EVPN BGP 5 class
During route message, VTEP3 and VTEP4, it is believed that VTEP1 is or/and VTEP2 breaks down, needs to re-elect new appointment and turns
The equipment of sending out, thus trigger new appointment forwarding unit election；
By above description it can be seen that in embodiments of the present invention, by VTEP equipment in EVPN network is enabled
DHCP Relay function, when a VTEP equipment receives the dhcp broadcast message that VM sends, can be by this dhcp broadcast report
Literary composition is converted to the DHCP unicast message of the address that destination address is the Dynamic Host Configuration Protocol server self connected, and sends it to self even
The Dynamic Host Configuration Protocol server connect, thus, it is no longer necessary in the case of setting up the VXLAN relation binding of Dynamic Host Configuration Protocol server and VTEP equipment,
The DHCP message achieving VM transmission can reach Dynamic Host Configuration Protocol server, makes full use of the performance that VTEP equipment three-layer network closes, and reduces
The limitation of network design.Additionally, a VTEP equipment is by being converted to DHCP clean culture by the dhcp broadcast message received
Message is sent to Dynamic Host Configuration Protocol server, decreases the quantity of broadcasting packet in network, prevents from occurring DHCP message to flood in network.
Refer to Fig. 3, for the structural representation of a kind of apparatus for forwarding message that the embodiment of the present invention provides, wherein, this report
Literary composition retransmission unit can apply to the VTEP equipment in above-mentioned EVPN network, as it is shown on figure 3, this apparatus for forwarding message is permissible
Including:
Receive unit 310, the dhcp broadcast message sent for sink virtual machine VM；
Converting unit 320, for being converted to DHCP unicast message by described dhcp broadcast message；Wherein, described DHCP is mono-
Report the address that destination address is the Dynamic Host Configuration Protocol server that a described VTEP equipment connects of literary composition；
Transmitting element 330, for being sent to described Dynamic Host Configuration Protocol server by described DHCP unicast message.
See also the structural representation of the another kind of apparatus for forwarding message that Fig. 4, Fig. 4 provide for the embodiment of the present invention,
On the basis of the embodiment shown in Fig. 3, the apparatus for forwarding message shown in Fig. 4 also includes:
Judging unit 340, for when described reception unit 310 receives the dhcp broadcast message that VM sends, it is judged that institute
State whether a VTEP equipment is to specify forwarding unit；Wherein, connect same during described appointment forwarding unit is described EVPN network
The appointed VTEP equipment for sending DHCP message to Dynamic Host Configuration Protocol server in the VTEP equipment of one Dynamic Host Configuration Protocol server；
Described converting unit 320, if the judged result specifically for described judging unit 340 is yes, the most described DHCP is mono-
Report literary composition and be sent to described Dynamic Host Configuration Protocol server.
In an alternative embodiment, described transmitting element 330, if being additionally operable to being judged as NO of described judging unit 340, then will
Described dhcp broadcast message is sent to specify forwarding unit, described appointment forwarding unit be converted to by described dhcp broadcast message
DHCP unicast message, and it is sent to described Dynamic Host Configuration Protocol server.
See also the structural representation of the another kind of apparatus for forwarding message that Fig. 5, Fig. 5 provide for the embodiment of the present invention,
On the basis of the embodiment shown in Fig. 4, in the apparatus for forwarding message shown in Fig. 5, described judging unit 340, including:
Inquiry subelement 341, for inquiring about the appointment forwarding unit information of local maintenance, described appointment forwarding unit information
Including the address information specifying forwarding unit；
Judgment sub-unit 342, if include the address of a described VTEP equipment for described appointment forwarding unit information,
Then judge that a described VTEP equipment is as specifying forwarding unit；Otherwise, it is judged that a described VTEP equipment is not to specify forwarding to set
Standby.
In an alternative embodiment, when a described VTEP equipment is for specifying forwarding unit, and the quantity of forwarding unit is specified
For time multiple,
Described transmitting element 330, if the judged result being additionally operable to described judging unit 320 is, then by wide for described DHCP
Report literary composition and be transmitted to other appointment forwarding unit, described other specify forwarding unit to be converted to by described dhcp broadcast message
DHCP unicast message, and it is sent to described Dynamic Host Configuration Protocol server.
See also the structural representation of the another kind of apparatus for forwarding message that Fig. 6, Fig. 6 provide for the embodiment of the present invention,
On the basis of the embodiment shown in Fig. 4 or Fig. 5 (Fig. 6 is being optimized as a example by the basis of the embodiment shown in Fig. 4), figure
Apparatus for forwarding message shown in 6 also includes:
Election unit 350, sends EVPN Border Gateway Protocol (BGP) route for the VTEP equipment in described EVPN network
Message, and the EVPN BGP route message that the VTEP equipment in described EVPN network that receives sends；Wherein, described EVPN BGP road
By the address carrying the Dynamic Host Configuration Protocol server that the VTEP equipment sending this EVPN BGP5 class route message connects in message；According to
Preset election regulation, elect appointment forwarding unit with target VTEP equipment；Wherein, described target VTEP equipment is and described
One VTEP equipment connects other VTEP equipment of same Dynamic Host Configuration Protocol server.
In said apparatus, the function of unit and the process that realizes of effect specifically refer to corresponding step in said method
Realize process, do not repeat them here.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part sees method in fact
The part executing example illustrates.Device embodiment described above is only schematically, wherein said as separating component
The unit illustrated can be or may not be physically separate, and the parts shown as unit can be or can also
It not physical location, i.e. may be located at a place, or can also be distributed on multiple NE.Can be according to reality
Need to select some or all of module therein to realize the purpose of the present invention program.Those of ordinary skill in the art are not paying
In the case of going out creative work, i.e. it is appreciated that and implements.
As seen from the above-described embodiment, by VTEP equipment in EVPN network is enabled DHCP Relay function, when first
When VTEP equipment receives the dhcp broadcast message that VM sends, this dhcp broadcast message can be converted to destination address is self
The DHCP unicast message of the address of the Dynamic Host Configuration Protocol server connected, and send it to the Dynamic Host Configuration Protocol server self connected, thus, no
In the case of needing the VXLAN relation setting up Dynamic Host Configuration Protocol server and VTEP equipment to bind again, it is achieved that the DHCP message that VM sends
Dynamic Host Configuration Protocol server can be reached, make full use of the performance that VTEP equipment three-layer network closes, decrease the limitation of network design.This
Outward, a VTEP equipment is sent to Dynamic Host Configuration Protocol server by the dhcp broadcast message received is converted to DHCP unicast message,
Decrease the quantity of broadcasting packet in network, prevent from network occurring DHCP message flood.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to its of the present invention
Its embodiment.The application is intended to any modification, purposes or the adaptations of the present invention, these modification, purposes or
Person's adaptations is followed the general principle of the present invention and includes the undocumented common knowledge in the art of the present invention
Or conventional techniques means.Description and embodiments is considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (12)
1. a message forwarding method, it is characterised in that be applied in ether VLAN EVPN network first virtual can
Extension LAN tunneling termination VTEP equipment, the VTEP equipment in described EVPN network enables dynamic host configuration protocol DHCP
Relaying Relay function, described method includes:
When receiving the dhcp broadcast message that virtual machine VM sends, described dhcp broadcast message is converted to DHCP clean culture report
Literary composition；Wherein, the destination address of described DHCP unicast message is the address of the Dynamic Host Configuration Protocol server that a described VTEP equipment connects；
Described DHCP unicast message is sent to described Dynamic Host Configuration Protocol server.
Method the most according to claim 1, it is characterised in that described described DHCP unicast message is sent to described DHCP
Before server, also include:
Judge whether a described VTEP equipment is to specify forwarding unit；Wherein, described appointment forwarding unit is described EVPN net
Network connects the appointed VTEP for sending DHCP message to Dynamic Host Configuration Protocol server in the VTEP equipment of same Dynamic Host Configuration Protocol server
Equipment；
If, it is determined that perform to be sent to described DHCP unicast message the step of described Dynamic Host Configuration Protocol server.
Method the most according to claim 2, it is characterised in that described method also includes:
If a described VTEP equipment is not to specify forwarding unit, then it is sent to described dhcp broadcast message specify forwarding to set
Standby, described appointment forwarding unit described dhcp broadcast message is converted to DHCP unicast message, and is sent to described DHCP clothes
Business device.
Method the most according to claim 2, it is characterised in that described judge that whether a described VTEP equipment be to specify to turn
The equipment of sending out, including:
The appointment forwarding unit information of inquiry local maintenance, described appointment forwarding unit information includes the address specifying forwarding unit
Information；
If described appointment forwarding unit information includes the address of a described VTEP equipment, then judge a described VTEP equipment
For specifying forwarding unit；
Otherwise, it is judged that a described VTEP equipment is not to specify forwarding unit.
Method the most according to claim 2, it is characterised in that when a described VTEP equipment is for specifying forwarding unit, and
When the quantity of appointment forwarding unit is multiple, described method also includes:
Described dhcp broadcast message is transmitted to other and specifies forwarding unit, described other specify forwarding unit by described DHCP
Broadcasting packet is converted to DHCP unicast message, and is sent to described Dynamic Host Configuration Protocol server.
6. according to the method described in any one of claim 2-5, it is characterised in that specify forwarding unit to elect in the following manner
Determine:
VTEP equipment in described EVPN network sends EVPN Border Gateway Protocol (BGP) route message, and receives described EVPN
The EVPN BGP that VTEP equipment in network sends route message；Wherein, described EVPN BGP route message carries transmission
The address of the Dynamic Host Configuration Protocol server that the VTEP equipment of this EVPN BGP route message connects；
According to default election regulation, elect appointment forwarding unit with target VTEP equipment；Wherein, described target VTEP equipment is
With other VTEP equipment that a described VTEP equipment is connected same Dynamic Host Configuration Protocol server.
7. an apparatus for forwarding message, it is characterised in that be applied in ether VLAN EVPN network first virtual can
Extension LAN tunneling termination VTEP equipment, the VTEP equipment in described EVPN network enables dynamic host configuration protocol DHCP
Relaying Relay function, described device includes:
Receive unit, the dhcp broadcast message sent for sink virtual machine VM；
Converting unit, for being converted to DHCP unicast message by described dhcp broadcast message；Wherein, described DHCP unicast message
Destination address is the address of the Dynamic Host Configuration Protocol server that a described VTEP equipment connects；
Transmitting element, for being sent to described Dynamic Host Configuration Protocol server by described DHCP unicast message.
Device the most according to claim 7, it is characterised in that described device also includes:
Judging unit, for when described reception unit receives the dhcp broadcast message that VM sends, it is judged that a described VTEP
Whether equipment is to specify forwarding unit；Wherein, described appointment forwarding unit connects same DHCP service in being described EVPN network
The appointed VTEP equipment for sending DHCP message to Dynamic Host Configuration Protocol server in the VTEP equipment of device；
Described transmitting element, if the judged result specifically for described judging unit is yes, then sends out described DHCP unicast message
Give described Dynamic Host Configuration Protocol server.
Device the most according to claim 8, it is characterised in that
Described transmitting element, if being additionally operable to being judged as NO of described judging unit, then is sent to described dhcp broadcast message refer to
Determine forwarding unit, described appointment forwarding unit described dhcp broadcast message is converted to DHCP unicast message, and is sent to institute
State Dynamic Host Configuration Protocol server.
Device the most according to claim 8, it is characterised in that described judging unit, including:
Inquiry subelement, for inquiring about the appointment forwarding unit information of local maintenance, described appointment forwarding unit information includes referring to
Determine the address information of forwarding unit；
Judgment sub-unit, if include the address of a described VTEP equipment for described appointment forwarding unit information, then judges
A described VTEP equipment is for specifying forwarding unit；Otherwise, it is judged that a described VTEP equipment is not to specify forwarding unit.
11. devices according to claim 8, it is characterised in that when a described VTEP equipment is for specifying forwarding unit, and
When the quantity of appointment forwarding unit is multiple,
Described transmitting element, if the judged result being additionally operable to described judging unit is, then forwards described dhcp broadcast message
Specify forwarding unit to other, described other specify forwarding unit that described dhcp broadcast message is converted to DHCP clean culture report
Literary composition, and it is sent to described Dynamic Host Configuration Protocol server.
12. devices described in-11 any one according to Claim 8, it is characterised in that described device also includes:
Election unit, sends EVPN Border Gateway Protocol (BGP) route message for the VTEP equipment in described EVPN network, and
The EVPNBGP that the VTEP equipment in described EVPN network that receives sends route message；Wherein, in described EVPN BGP route message
Carry the address of the Dynamic Host Configuration Protocol server of the VTEP equipment connection sending this EVPN BGP route message；According to default election rule
Then, appointment forwarding unit is elected with target VTEP equipment；Wherein, described target VTEP equipment is and a described VTEP equipment
Connect other VTEP equipment of same Dynamic Host Configuration Protocol server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807986.2A CN106254203B (en) | 2016-09-05 | 2016-09-05 | Message forwarding method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807986.2A CN106254203B (en) | 2016-09-05 | 2016-09-05 | Message forwarding method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106254203A true CN106254203A (en) | 2016-12-21 |
| CN106254203B CN106254203B (en) | 2020-02-11 |
Family
ID=57598674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610807986.2A Active CN106254203B (en) | 2016-09-05 | 2016-09-05 | Message forwarding method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106254203B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947989A (en) * | 2017-11-28 | 2018-04-20 | 新华三技术有限公司 | Dynamic AC generation methods and device |
| CN108199947A (en) * | 2018-01-31 | 2018-06-22 | 新华三技术有限公司 | It is specified to turn originator DF electoral machinery and device |
| CN108259636A (en) * | 2017-09-29 | 2018-07-06 | 新华三技术有限公司 | A kind of message processing method and device |
| CN108600074A (en) * | 2018-04-20 | 2018-09-28 | 新华三技术有限公司 | The retransmission method and device of multicast data message |
| CN108600070A (en) * | 2018-03-30 | 2018-09-28 | 新华三技术有限公司 | It is specified to turn originator DF electoral machinery and device |
| CN109286565A (en) * | 2018-11-15 | 2019-01-29 | 北京华三通信技术有限公司 | Message forwarding method and device |
| CN109768868A (en) * | 2017-11-09 | 2019-05-17 | 华为技术有限公司 | Processing method, device and the equipment of ether broadcast frame |
| CN110430116A (en) * | 2019-07-26 | 2019-11-08 | 新华三技术有限公司成都分公司 | Data forwarding method and device, edge device and readable storage medium storing program for executing |
| CN111064659A (en) * | 2018-10-17 | 2020-04-24 | 丛林网络公司 | Node protection of BUM traffic for multi-homed node failures |
| CN113170005A (en) * | 2018-09-13 | 2021-07-23 | 瑞典爱立信有限公司 | Method and apparatus for supporting selective forwarding of messages in a network of communicatively coupled communication devices |
| CN114095460A (en) * | 2022-01-20 | 2022-02-25 | 杭州优云科技有限公司 | Message broadcasting method and device |
| US11349749B2 (en) | 2018-10-17 | 2022-05-31 | Juniper Networks, Inc. | Node protection for bum traffic for multi-homed node failure |
| US11425044B2 (en) | 2020-10-15 | 2022-08-23 | Cisco Technology, Inc. | DHCP layer 2 relay in VXLAN overlay fabric |
| US11606333B1 (en) | 2022-03-04 | 2023-03-14 | Cisco Technology, Inc. | Synchronizing dynamic host configuration protocol snoop information |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605090A (en) * | 2008-06-14 | 2009-12-16 | 中兴通讯股份有限公司 | Two layers of middle-agent's of DHCP implementation method in the EPON |
| CN103684966A (en) * | 2013-12-10 | 2014-03-26 | 华为技术有限公司 | Method and device for processing dynamic host configuration protocol messages |
| CN103814554A (en) * | 2013-12-11 | 2014-05-21 | 华为技术有限公司 | Communication method, device and system of virtual extensible local area network |
| CN103944867A (en) * | 2013-01-23 | 2014-07-23 | 华为技术有限公司 | Dynamic host configuration protocol (DHCP) message processing method, device and system |
| CN104104747A (en) * | 2014-07-28 | 2014-10-15 | 杭州华三通信技术有限公司 | Method and device for message transmission |
| CN104410574A (en) * | 2014-11-28 | 2015-03-11 | 杭州华三通信技术有限公司 | Node equipment in RPR network and method of node equipment for packet forwarding |
-
2016
- 2016-09-05 CN CN201610807986.2A patent/CN106254203B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605090A (en) * | 2008-06-14 | 2009-12-16 | 中兴通讯股份有限公司 | Two layers of middle-agent's of DHCP implementation method in the EPON |
| CN103944867A (en) * | 2013-01-23 | 2014-07-23 | 华为技术有限公司 | Dynamic host configuration protocol (DHCP) message processing method, device and system |
| CN103684966A (en) * | 2013-12-10 | 2014-03-26 | 华为技术有限公司 | Method and device for processing dynamic host configuration protocol messages |
| CN103814554A (en) * | 2013-12-11 | 2014-05-21 | 华为技术有限公司 | Communication method, device and system of virtual extensible local area network |
| CN104104747A (en) * | 2014-07-28 | 2014-10-15 | 杭州华三通信技术有限公司 | Method and device for message transmission |
| CN104410574A (en) * | 2014-11-28 | 2015-03-11 | 杭州华三通信技术有限公司 | Node equipment in RPR network and method of node equipment for packet forwarding |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108259636A (en) * | 2017-09-29 | 2018-07-06 | 新华三技术有限公司 | A kind of message processing method and device |
| CN109768868A (en) * | 2017-11-09 | 2019-05-17 | 华为技术有限公司 | Processing method, device and the equipment of ether broadcast frame |
| CN107947989A (en) * | 2017-11-28 | 2018-04-20 | 新华三技术有限公司 | Dynamic AC generation methods and device |
| CN107947989B (en) * | 2017-11-28 | 2020-10-09 | 新华三技术有限公司 | Dynamic AC generation method and device |
| CN108199947A (en) * | 2018-01-31 | 2018-06-22 | 新华三技术有限公司 | It is specified to turn originator DF electoral machinery and device |
| CN108199947B (en) * | 2018-01-31 | 2020-10-09 | 新华三技术有限公司 | Designated forwarder DF election method and device |
| CN108600070B (en) * | 2018-03-30 | 2020-12-01 | 新华三技术有限公司 | Designated forwarder DF election method and device |
| CN108600070A (en) * | 2018-03-30 | 2018-09-28 | 新华三技术有限公司 | It is specified to turn originator DF electoral machinery and device |
| CN108600074A (en) * | 2018-04-20 | 2018-09-28 | 新华三技术有限公司 | The retransmission method and device of multicast data message |
| CN113170005B (en) * | 2018-09-13 | 2023-08-08 | 瑞典爱立信有限公司 | Method and device for supporting selective forwarding of messages in a network of communicatively coupled communication devices |
| US11552815B2 (en) | 2018-09-13 | 2023-01-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of and devices for supporting selective forwarding of messages in a network of communicatively coupled communication devices |
| CN113170005A (en) * | 2018-09-13 | 2021-07-23 | 瑞典爱立信有限公司 | Method and apparatus for supporting selective forwarding of messages in a network of communicatively coupled communication devices |
| US11750411B2 (en) | 2018-09-13 | 2023-09-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of and devices for supporting selective forwarding of messages in a network of communicatively coupled communication devices |
| CN111064659B (en) * | 2018-10-17 | 2022-07-19 | 瞻博网络公司 | Node protection of BUM traffic for multi-homed node failures |
| CN111064659A (en) * | 2018-10-17 | 2020-04-24 | 丛林网络公司 | Node protection of BUM traffic for multi-homed node failures |
| US11349749B2 (en) | 2018-10-17 | 2022-05-31 | Juniper Networks, Inc. | Node protection for bum traffic for multi-homed node failure |
| CN109286565A (en) * | 2018-11-15 | 2019-01-29 | 北京华三通信技术有限公司 | Message forwarding method and device |
| CN109286565B (en) * | 2018-11-15 | 2019-09-06 | 北京华三通信技术有限公司 | Message forwarding method and device |
| CN110430116B (en) * | 2019-07-26 | 2021-05-07 | 新华三技术有限公司成都分公司 | Data forwarding method and device, edge device and readable storage medium |
| CN110430116A (en) * | 2019-07-26 | 2019-11-08 | 新华三技术有限公司成都分公司 | Data forwarding method and device, edge device and readable storage medium storing program for executing |
| US11425044B2 (en) | 2020-10-15 | 2022-08-23 | Cisco Technology, Inc. | DHCP layer 2 relay in VXLAN overlay fabric |
| CN114095460B (en) * | 2022-01-20 | 2022-05-31 | 杭州优云科技有限公司 | Message broadcasting method and device |
| CN114095460A (en) * | 2022-01-20 | 2022-02-25 | 杭州优云科技有限公司 | Message broadcasting method and device |
| US11606333B1 (en) | 2022-03-04 | 2023-03-14 | Cisco Technology, Inc. | Synchronizing dynamic host configuration protocol snoop information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106254203B (en) | 2020-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106254203A (en) | A kind of message forwarding method and device | |
| EP2945320B1 (en) | Method, device and routing system for data transmission of network virtualization | |
| CN107819677B (en) | Message forwarding method and device | |
| US9197721B2 (en) | Learning a MAC address | |
| EP3210348B1 (en) | Multicast traffic management in an overlay network | |
| WO2016015497A1 (en) | Method, device and system for forwarding packet | |
| CN109561033B (en) | Method and device for multicast replication in Overlay network | |
| CN108574616A (en) | A kind of method, equipment and the system of processing routing | |
| CN111510379A (en) | EVPN message processing method, device and system | |
| EP3110087B1 (en) | Processing method and related device for host route in virtual sub-network, and communication system | |
| CN107317768B (en) | Traffic scheduling method and device | |
| US20190166407A1 (en) | Dynamic designated forwarder election per multicast stream for evpn all-active homing | |
| EP2991284A1 (en) | Method and device used in ethernet virtual private network | |
| US20210328936A1 (en) | Method for determining designated forwarder (df) of multicast flow, device, and system | |
| CN104852840A (en) | Method and device for controlling mutual access between virtual machines | |
| WO2018068588A1 (en) | Method and software-defined networking (sdn) controller for providing multicast service | |
| CN103117935A (en) | Multicast data forwarding method and multicast data forwarding device applied to multi-homing networking | |
| CN103200117B (en) | A kind of load-balancing method and device | |
| US9521073B2 (en) | Enhanced fine-grained overlay transport virtualization multi-homing using per-network authoritative edge device synchronization | |
| EP4044523A1 (en) | Packet forwarding method, first network device, and first device group | |
| EP2892196B1 (en) | Method, network node and system for implementing point-to-multipoint multicast | |
| GB2496943A (en) | Managing IGMP multicast transmission using multiple queriers | |
| US9438475B1 (en) | Supporting relay functionality with a distributed layer 3 gateway | |
| US11929851B2 (en) | Gateway selection method, device, and system | |
| CN107623636B (en) | User isolation method and switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Applicant after: Xinhua three Technology Co., Ltd. Address before: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Applicant before: Huasan Communication Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |