CN107547341B - Access method and device of virtual extensible local area network VXLAN - Google Patents
Access method and device of virtual extensible local area network VXLAN Download PDFInfo
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Abstract
The present disclosure relates to an access method and device for a virtual extensible local area network (VXLAN), which is applied to a VXLAN Tunnel Endpoint (VTEP), wherein a server is connected with the VTEP through a Link Aggregation Control Protocol (LACP) link, and the access method comprises the following steps: detecting whether an aggregation interface of the LACP link is an aggregation edge interface; and if the aggregation interface is detected to be the aggregation edge interface, issuing an access circuit AC table entry configured on the aggregation member port in the independent state if the state of the aggregation member port of the LACP link is in the independent state. Therefore, the bare computer server can normally access the VXLAN networking by using the aggregation interface in the installation process, the bare computer server and the VTEP successfully establish the LACP link, the bare computer server can acquire the operating system image file on the file server, and the bare computer server is successfully installed, so that the usability of accessing the VXLAN networking by using the aggregation interface can be effectively improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an access method and an access device for a virtual extensible local area network VXLAN.
Background
In the related art, a Virtual Extensible LAN (VXLAN) includes a server and a VXLAN Tunnel End Point (VTEP), where the server and the VTEP are connected by a Link Aggregation Control Protocol (LACP), that is, are connected by an LACP Link, and an Aggregation interface of the LACP Link is configured as an Aggregation edge interface.
However, when the bare metal server is installed, the bare metal server and the VTEP cannot establish a LACP link, which makes the bare metal server unable to obtain the operating system image file on the file server, thereby resulting in a failure of installing the bare metal server.
Disclosure of Invention
In view of this, the present disclosure provides an access method and an access device for a virtual extensible local area network VXLAN.
According to one aspect of the disclosure, an access method for a virtual extensible local area network VXLAN is provided, which is applied to a VXLAN tunnel endpoint VTEP, and a server is connected to the VTEP through a link aggregation control protocol LACP link, and the method includes:
detecting whether an aggregation interface of the LACP link is an aggregation edge interface; and
and if the aggregation interface is detected to be the aggregation edge interface, issuing an access circuit AC table entry configured on the aggregation member port in the independent state if the status of the aggregation member port of the LACP link is in the independent state.
In a possible implementation manner, when it is detected that the aggregation interface is the aggregation edge interface, if the status of the aggregation member port of the LACP link is an independent status, issuing an access circuit AC entry configured on the aggregation member port in the independent status, includes:
under the condition that the aggregation interface is detected to be the aggregation edge interface, if the aggregation member port of the LACP link is in the independent state, acquiring the AC table entry configured on the aggregation member port in the independent state;
and issuing the AC table entry configured on the aggregation member port in the independent state.
In one possible implementation form of the method,
in the case where the server and VTEP establish the LACP link and the server is restarted, the state of all aggregated member ports of the LACP link is migrated to an independent state; or
And under the condition that a new aggregation member port is added into the LACP link in the installation process of the server, the new aggregation member port is in an independent state.
In a possible implementation manner, the method further includes:
and if the aggregation member port in the independent state exits from the independent state, deleting the AC table entry configured on the aggregation member port exiting from the independent state.
According to another aspect of the present disclosure, there is provided an access device of a virtual extensible local area network VXLAN, which is applied to a VXLAN tunnel endpoint VTEP, and a server is connected to the VTEP through a link aggregation control protocol LACP link, where the processing device includes:
a detection module, configured to detect whether an aggregation interface of the LACP link is an aggregation edge interface; and
and issuing, by the issuing module, an access circuit AC entry configured on the aggregation member port in the independent state if the state of the aggregation member port of the LACP link is in the independent state when it is detected that the aggregation interface is the aggregation edge interface.
In a possible implementation manner, the issuing module is specifically configured to:
under the condition that the aggregation interface is detected to be the aggregation edge interface, if the aggregation member port of the LACP link is in the independent state, acquiring the AC table entry configured on the aggregation member port in the independent state;
and issuing the AC table entry configured on the aggregation member port in the independent state.
In one possible implementation form of the method,
in the case where the server and VTEP establish the LACP link and the server is restarted, the state of all aggregated member ports of the LACP link is migrated to an independent state; or
And under the condition that a new aggregation member port is added into the LACP link in the installation process of the server, the new aggregation member port is in an independent state.
In a possible implementation manner, the apparatus further includes:
and the deleting module is connected with the detecting module and used for deleting the AC table entry configured on the aggregation member port which exits the independent state if the aggregation member port which is in the independent state exits the independent state.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: by enabling the aggregation member port of the LACP link in the independent state to issue the AC table entry, the bare metal server can normally access the VXLAN networking by using the aggregation interface in the installation process, and the bare metal server and the VTEP successfully establish the LACP link, so that the bare metal server can acquire the operating system image file on the file server and the bare metal server is successfully installed, and therefore the usability of accessing the VXLAN networking by using the aggregation interface can be effectively improved.
In a possible implementation manner, the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the processing flexibility of VXLAN networking can be enhanced by deleting the AC table entry configured on the aggregation member port of the LACP link of which the state is transferred from the independent state to the selected state.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram of a virtual extensible local area network VXLAN networking in an embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating an access method of a virtual extensible local area network VXLAN according to an example embodiment.
Fig. 3 is a block diagram illustrating an access device of a virtual extensible local area network VXLAN according to an exemplary embodiment.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 is a schematic diagram of VXLAN networking in an embodiment of the disclosure. As shown in fig. 1, the VXLAN networking includes a bare metal Server, an edge device VTEP1 of VXLAN, an edge device VTEP2 of device P, VXLAN in an IP core network, and a file Server. The VXLAN networking can be used for installing a bare computer Server. The VTEP equipment connected with the server includes VTEP1 and VTEP2, and VTEP1, P and VTEP2 are switches, for example. Wherein VTEP1 is connected to bare computer Server through Ethernet interfaces Gigabit Ethernet1/0/1 and Gigabit Ethernet1/0/2, and VTEP2 is connected to file Server through Ethernet interfaces Gigabit Ethernet 1/0/1.
A VXLAN tunnel is established between VTEP1 and VTEP2, for example, a VXLAN tunnel 1 to VTEP2 is created on VTEP1 and VXLAN tunnel 1 is associated with VXLAN 2 on VTEP1, a VXLAN tunnel 1 to VTEP1 is created on VTEP2 and VXLAN tunnel 1 is associated with VXLAN 2 on VTEP2, whereby VTEP1 can encapsulate VXLAN header, UDP header and IP header for data frames, and then forward the encapsulated packet to a remote VTEP device, i.e., VTEP2, via a device P in the IP core network through VXLAN tunnel 1, and decapsulate the packet by VTEP 2.
As shown in fig. 1, the ethernet interfaces gigabit ethernet1/0/1 and gigabit ethernet1/0/2 can be bundled together to form an aggregation group, which can increase the link bandwidth, and when a link in the aggregation group is closed, i.e., the link is down, a message can be forwarded through other links. For example, if the Ethernet interface GigabitEthernet1/0/1 is turned off, the bare metal Server can forward the message to VTEP1 through the Ethernet interface GigabitEthernet1/0/2 with the state up.
The ethernet interfaces gigabit ethernet1/0/1 and gigabit ethernet1/0/2 may be referred to as aggregation member ports of the aggregation group, that is, the aggregation member ports of the aggregation group may include ethernet interfaces gigabit ethernet1/0/1 and gigabit ethernet1/0/2, the aggregation group has a logical interface uniquely corresponding thereto, the logical interface is referred to as an aggregation interface, and the numbering of the aggregation group and the aggregation interface is the same, for example, aggregation group 1 corresponds to aggregation interface 1. And the properties of the aggregation interface may be configured, e.g., the properties of the aggregation interface may be configured as an edge, whereby the aggregation interface may be configured as an aggregation edge interface.
The aggregation member ports in the aggregation group may have a Selected (Selected) state, an Unselected (Unselected) state, and an independent (independent) state, where the aggregation member ports in the Selected state may participate in forwarding a packet, the aggregation member ports in the Unselected state may not participate in forwarding the packet, and the aggregation member ports in the independent state may participate in forwarding the packet as a common physical port in the case that the aggregation interface is an aggregation edge interface.
When the bare Server uses the aggregation interface to successfully Access VXLAN networking, the VTEP1 and VTEP2 can obtain Media Access Control (MAC) table entries through automatic learning. The MAC table entry may include two fields, a MAC address and an Interface (Interface). And under the condition that the bare computer Server successfully accesses the VXLAN networking by using the aggregation interface, the bare computer Server can acquire the operating system image file on the file Server.
Therefore, the process of the bare metal Server sending the communication message to the file Server is as follows: the bare Server forwards the communication message to VTEP1 through an LACP link established between the bare Server and VTEP1, then VTEP1 processes the communication message such as packaging VXLAN header, UDP header and IP header and forwards the packaged message to IP core network through VXLAN tunnel 1, then IP core network forwards the packaged message to VTEP2 through VXLAN tunnel 1, VTEP2 decapsulates the packaged message to obtain communication message and sends the communication message to port MAC 7 of file Server through Ethernet interface Gigabitether 1/0/1 of VTEP 2.
For the sake of clarity of the present disclosure, the following detailed description of the embodiments of the present disclosure will be made by taking VXLAN networking as an example, as shown in fig. 1.
In the VXLAN networking shown in fig. 1, when the bare metal Server is installed, the bare metal Server has no operating system, and the bare metal Server does not support LACP, so all aggregation member ports of the LACP link, such as gigabit ethernet1/0/1 and gigabit ethernet1/0/2, cannot receive LACP messages sent by the bare metal Server, and thus all aggregation member ports of the LACP link are in an independent state. At this time, an LACP link cannot be successfully established between the bare computer Server and the VTEP1, the status of an aggregation interface of the LACP link is down, an access Circuit (hereinafter, referred to as AC) entry cannot be generated on the aggregation interface of the LACP link, the VTEP1 cannot issue the AC entry, which makes the bare computer Server and the VTEP2 unable to communicate, and the bare computer Server cannot obtain an operating system image file on the file Server, thereby causing the installation failure of the bare computer Server.
Moreover, as described above, in the case that the aggregation interface is an aggregation edge interface, the aggregation member port in an independent state may participate in forwarding the packet as a common physical port. Therefore, in order to enable a bare metal Server, such as the bare metal Server in fig. 1, to successfully access the VXLAN networking using the aggregation interface when installed, the present disclosure enables the aggregation member port of the LACP link in an independent state to issue the AC entry, so that the aggregation member port can normally forward the VXLAN packet.
Fig. 2 is a flowchart illustrating an access method for a virtual extensible local area network VXLAN, which may be applied to a VTEP in a VXLAN networking, according to an exemplary embodiment, where a server and the VTEP are connected by a link aggregation control protocol LACP link. As shown in fig. 2, the access method may include the following steps.
In step S210, it is detected whether the aggregation interface of the LACP link is an aggregation edge interface.
As described above, the aggregation interface of the LACP link may be configured as an aggregation edge interface by setting the attribute of the aggregation interface of the LACP link as an edge, and thus, it may be detected whether the aggregation interface of the LACP link is an aggregation edge interface by detecting whether the attribute of the aggregation interface of the LACP link is an edge.
For example, in the VXLAN networking shown in fig. 1, when detecting that the attribute of the aggregation interface of the LACP link is an edge, it may be detected that the aggregation interface of the LACP link is an aggregation edge interface, and when detecting that the attribute of the aggregation interface of the LACP link is another attribute, it may be detected that the aggregation interface of the LACP link is not an aggregation edge interface.
In step S230, if it is detected that the aggregation interface is an aggregation edge interface, if the status of the aggregation member port of the LACP link is an independent status, an access circuit AC entry configured on the aggregation member port in the independent status is issued.
The AC entry may include the following fields: an Access Interface (Interface), an ethernet Service Instance (Service Instance), a Link ID (Link ID) of an AC in a Virtual Switch Interface (VSI), an AC Access Mode (Access Mode), an AC attribute (Attributes), and the like. The field Service Instance is displayed on the command display information description table only when the AC is an Ethernet Service Instance of the two-layer interface, the value of the field Access Mode may include a VLAN and an Ethernet, that is, the AC Access Mode may include a VLAN Mode and an Ethernet Mode, and the value of the field Attributes may include Hub link (which indicates that the AC is a Hub link in VPLS Hub-Spoke networking) and Spoke link (which indicates that the AC is a Spoke link in VPLS Hub-Spoke networking).
For example, in the VXLAN networking shown in fig. 1, in the case that it is detected that the aggregation interface is an aggregation edge interface, the states of the aggregation member ports GigabitEthernet1/0/1 and GigabitEthernet1/0/2 of the LACP link may be further detected, and if it is detected that the state of the aggregation member ports GigabitEthernet1/0/1 is an independent state, the control plane of the VTEP1 may issue an AC entry configured on the aggregation member ports GigabitEthernet1/0/1 to the forwarding plane of the VTEP 1.
Therefore, according to the method and the device, the aggregation member port of the LACP link in the independent state issues the AC table entry, the bare computer server can normally access the VXLAN networking by using the aggregation interface in the installation process, the bare computer server and the VTEP successfully establish the LACP link, the bare computer server can obtain the operating system image file on the file server, and the bare computer server is successfully installed, so that the usability of accessing the VXLAN networking by using the aggregation interface can be effectively improved.
In a possible implementation manner, the step S230 may specifically include: under the condition that the aggregation interface is detected to be an aggregation edge interface, if the aggregation member port of the LACP link is in an independent state, acquiring an AC table entry configured on the aggregation member port in the independent state; and issuing the AC table entry configured on the aggregation member port in the independent state.
In VXLAN networking as shown in fig. 1, for example, when bare metal Server and VTEP1 are connected via a network cable, the administrator may configure AC entries for both aggregation member ports, gigabit ethernet1/0/1 and gigabit ethernet 1/0/2. For another example, in the case that it is detected that the aggregation interface is an aggregation edge interface, if the aggregation member port of the LACP link is in an independent state, the administrator may configure an AC entry for the aggregation member port in the independent state.
For example, VTEP1 in fig. 1 may include a control plane and a forwarding plane, where the control plane may obtain an AC entry configured on an aggregation member port in an independent state and issue the AC entry to the forwarding plane, and then the forwarding plane may store the AC entry. Therefore, in the VXLAN networking shown in fig. 1, in the case that it is detected that the aggregation interface is the aggregation edge interface, if it is detected that the status of the aggregation member port gigabit ethernet1/0/1 is the independent status, the control plane may first obtain the AC entry configured on the aggregation member port gigabit ethernet1/0/1, and then issue the AC entry to the forwarding plane, where the forwarding plane stores the AC entry.
In one possible implementation, in the case where the server and the VTEP establish a LACP link and the server is restarted, the states of all aggregated member ports of the LACP link are migrated to the independent state; or when a new aggregation member port is added to the LACP link in the server installation process, the new aggregation member port is in an independent state.
For example, in the VXLAN networking shown in fig. 1, if an LACP link is established between a bare cell Server and VTEP1 (the bare cell Server is successfully installed) and the Server is restarted in order to upgrade the bare cell Server that is successfully installed, neither the aggregated member ports GigabitEthernet1/0/1 and GigabitEthernet1/0/2 of the LACP link can receive LACP messages, and accordingly, the aggregated member ports GigabitEthernet1/0/1 and GigabitEthernet1/0/2 of the LACP link migrate from the selected state to the independent state.
For another example, in the VXLAN networking shown in fig. 1, if a new aggregation member port, such as gigabit ethernet1/0/20, is added to the LACP link during the installation process of the Server, the aggregation member port of the LACP link, gigabit ethernet1/0/20, is in a default independent state.
In a possible implementation manner, the access method may further include the following steps: and if the aggregation member port with the state as the independent state exits the independent state, deleting the AC table entry configured on the aggregation member port exiting the independent state.
As described above, in the case that the aggregation member port of the LACP link is in the independent state, if the aggregation member port receives an LACP message sent by an opposite end, the aggregation member port is transitioned from the independent state to the selected state. For example, if the aggregated member port gigabit Ethernet1/0/20 of the LACP link migrates from the standalone state to the selected state, the AC table entry configured on the aggregated member port gigabit Ethernet1/0/20 of the LACP link may be deleted.
Therefore, considering that the AC table entry is used for installing the bare metal Server, after the installation of the bare metal Server is completed, the bare metal Server does not use the AC table entry when performing data processing, for example, transmitting a VXLAN message, and therefore, by deleting the AC table entry configured on the aggregation member port of the LACP link whose state is transitioned from the independent state to the selected state, the processing flexibility of the VXLAN networking can be enhanced.
However, under the condition that the aggregation member port of the LACP link is in an independent state, if the aggregation member port directly exits from the aggregation group, the aggregation member port is a normal physical port, and at this time, the AC entry configured on the aggregation member port does not need to be deleted.
Fig. 3 is a block diagram illustrating an access device 300 of a virtual extensible local area network VXLAN according to an exemplary embodiment. The access device 300 may be used in a VTEP in a VXLAN networking, with a server connected to the VTEP via an LACP link. As shown in fig. 3, the access device 300 may include a detection module 310 and a delivery module 330.
The detecting module 310 is configured to detect whether an aggregation interface of the LACP link is an aggregation edge interface. The issuing module 330 is connected to the detecting module 310, and is configured to, if it is detected that the aggregation interface is an aggregation edge interface, issue an access circuit AC entry configured on an aggregation member port in an independent state if the state of the aggregation member port of the LACP link is in the independent state.
In a possible implementation manner, the issuing module 330 is specifically configured to: under the condition that the aggregation interface is detected to be an aggregation edge interface, if the aggregation member port of the LACP link is in an independent state, acquiring an AC table entry configured on the aggregation member port in the independent state; and issuing the AC table entry configured on the aggregation member port in the independent state.
In one possible implementation, in the case where the server and the VTEP establish a LACP link and the server is restarted, the states of all aggregated member ports of the LACP link are migrated to the independent state; or when a new aggregation member port is added to the LACP link in the server installation process, the new aggregation member port is in an independent state.
In a possible implementation manner, the processing apparatus 300 further includes a deleting module, which is connected to the detecting module 310 and configured to delete the AC entry configured on the aggregation member port exiting the independent state if the aggregation member port whose state is the independent state exits the independent state.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (8)
1. An access method of a virtual extensible local area network (VXLAN) is applied to a VXLAN Tunnel Endpoint (VTEP), a server is connected with the VTEP through a Link Aggregation Control Protocol (LACP) link, and the access method comprises the following steps:
detecting whether an aggregation interface of the LACP link is an aggregation edge interface; and
and if the aggregation interface is detected to be the aggregation edge interface, issuing an access circuit AC table entry configured on the aggregation member port in the independent state if the status of the aggregation member port of the LACP link is in the independent state.
2. The access method according to claim 1, wherein, in a case that it is detected that the aggregation interface is the aggregation edge interface, if the status of the aggregation member port of the LACP link is an independent status, issuing an access circuit AC entry configured on the aggregation member port in the independent status, includes:
under the condition that the aggregation interface is detected to be the aggregation edge interface, if the aggregation member port of the LACP link is in the independent state, acquiring the AC table entry configured on the aggregation member port in the independent state;
and issuing the AC table entry configured on the aggregation member port in the independent state.
3. The access method according to claim 1 or 2,
in the case where the server and VTEP establish the LACP link and the server is restarted, the state of all aggregated member ports of the LACP link is migrated to an independent state; or
And under the condition that a new aggregation member port is added into the LACP link in the installation process of the server, the new aggregation member port is in an independent state.
4. The access method according to claim 1 or 2, further comprising:
and if the aggregation member port in the independent state exits from the independent state, deleting the AC table entry configured on the aggregation member port exiting from the independent state.
5. An access device of a virtual extensible local area network (VXLAN) is applied to a VXLAN Tunnel Endpoint (VTEP), a server is connected with the VTEP through a Link Aggregation Control Protocol (LACP) link, and the access device comprises:
a detection module, configured to detect whether an aggregation interface of the LACP link is an aggregation edge interface; and
and issuing, by the issuing module, an access circuit AC entry configured on the aggregation member port in the independent state if the state of the aggregation member port of the LACP link is in the independent state when it is detected that the aggregation interface is the aggregation edge interface.
6. The access device according to claim 5, wherein the issuing module is specifically configured to:
under the condition that the aggregation interface is detected to be the aggregation edge interface, if the aggregation member port of the LACP link is in the independent state, acquiring the AC table entry configured on the aggregation member port in the independent state;
and issuing the AC table entry configured on the aggregation member port in the independent state.
7. The access device according to claim 5 or 6,
in the case where the server and VTEP establish the LACP link and the server is restarted, the state of all aggregated member ports of the LACP link is migrated to an independent state; or
And under the condition that a new aggregation member port is added into the LACP link in the installation process of the server, the new aggregation member port is in an independent state.
8. The access device according to claim 5 or 6, further comprising:
and the deleting module is connected with the detecting module and used for deleting the AC table entry configured on the aggregation member port which exits the independent state if the aggregation member port which is in the independent state exits the independent state.
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| CN112087378B (en) * | 2020-08-18 | 2022-03-22 | 浪潮思科网络科技有限公司 | Method, device and medium for realizing LACP forceup function |
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