CN104320322B - A kind of message control method and equipment - Google Patents
A kind of message control method and equipment Download PDFInfo
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Abstract
The present invention provides a kind of message control method and equipment, and wherein method includes: the edge forwarding equipment obtained in tunnel forwarding network, and the edge forwarding equipment is connect with controller or server；Controller sends message control strategy to the edge forwarding equipment, so that the edge forwarding equipment sets high priority for the priority of the message between the controller and server according to the message control strategy.The present invention can guarantee that message is preferentially sent in forwarding network with the high priority, and the message between controller and server is avoided to abandon as far as possible.
Description
Technical Field
The present invention relates to network technologies, and in particular, to a method and a device for controlling a packet.
Background
In a Network architecture of a Software Defined Network (SDN), a control plane and a forwarding plane of a Network device are separated, and Network traffic is centrally controlled by an SDN controller, wherein a Virtual Converged Framework (VCF) controller is one of controllers. In an application, a middle of a message between an SDN controller and a service server may be forwarded through a tunnel forwarding network, for example, if the tunnel network is a VXLAN network, when the message between the SDN controller and the service server reaches a VXLAN edge device (VTEP), the message between the SDN controller and the service server is tunnel-encapsulated according to a format specified by the VXLAN, and then forwarded to a peer edge device (VTEP), and the peer edge device (VTEP) decapsulates and then forwards the message to the SDN controller or the service server. The forwarded messages include control messages, protocol messages, data messages, and the like. Taking an SDN controller as a VCF controller as an example, a control message and a protocol message between the VCF controller and a server are used to ensure timely communication of an openflow channel between the VCF controller and the server, for example, the VCF controller may issue a flow table to an OVS of the server, so that the OVS forwards a service traffic of the server according to the flow table.
The present problem is that, when the tunnel forwarding network encapsulates and forwards a packet, various types of packets are forwarded equally, and when the packet flow on the forwarding path of the VCF sending the packet to the OVS of the server is very large, a phenomenon that a control packet and a protocol packet are discarded may occur, so that the control packet and the protocol packet cannot be transmitted correctly, which may result in that the VCF cannot ensure the timely transmission of session information between the controller and the server, and affect the service execution of the server, for example, the server cannot receive the latest flow table issued by the controller in time, and thus cannot forward the flow according to the latest flow table.
Disclosure of Invention
In view of this, the present invention provides a message control method and device, so as to ensure normal operation of openflow session between a VCF controller and a server.
Specifically, the invention is realized by the following technical scheme:
in a first aspect, a packet control method is provided, where the method is applied to a software defined network SDN, where the SDN includes a controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; the method comprises the following steps:
the controller acquires edge forwarding equipment in the tunnel forwarding network, wherein the edge forwarding equipment is connected with the controller or the server;
and the controller sends a message control strategy to the edge forwarding equipment, so that the edge forwarding equipment sets the priority of the message between the controller and the server to be high according to the message control strategy.
In a second aspect, a packet control method is provided, where the method is applied to a software defined network SDN, where the SDN includes a controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; the method comprises the following steps:
the edge forwarding equipment receives a message control strategy sent by the controller;
and the edge forwarding equipment sets the priority of the message between the controller and the server to be high according to the message control strategy.
In a third aspect, a controller is provided, which is applicable to a software defined network SDN, where the SDN includes the controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; the controller includes:
an apparatus determining unit, configured to acquire an edge forwarding apparatus in the tunnel forwarding network, where the edge forwarding apparatus is connected to the controller or the server;
and the strategy sending unit is used for sending a message control strategy to the edge forwarding equipment so that the edge forwarding equipment sets the priority of the message between the controller and the server to be high priority according to the message control strategy.
In a fourth aspect, a forwarding device is provided, which is applicable as an edge forwarding device in a software defined network SDN, where the SDN includes a controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; the forwarding device includes:
a policy receiving unit, configured to receive a message control policy sent by the controller;
and the message control unit is used for setting the priority of the message between the controller and the server as high priority according to the message control strategy.
According to the message control method and device provided by the embodiment of the invention, the controller issues the message control strategy to the edge device of the tunnel forwarding network, and the edge device sets the message between the controller and the server to be in the high priority according to the strategy, so that the message between the controller and the server can be ensured to be preferentially sent in the forwarding network at the high priority, and the occurrence of discarding is reduced.
Drawings
Fig. 1 is an application architecture diagram of a message control method according to an embodiment of the present invention;
fig. 2 is a diagram of a server structure in a message control method according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a message control method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a controller provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a forwarding device according to an embodiment of the present invention.
Detailed Description
The SDN is a network separating a control plane and a data plane, and in the SDN, an SDN controller is a control center and is responsible for generating a flow table and sending the flow table to a forwarding device in the SDN, and the forwarding device performs message processing according to the received flow table sent by the controller. As shown in fig. 1, the network shown in fig. 1 is a network architecture of an SDN, and the network includes a VCF controller 11 (in this embodiment, a VCF is taken as an example, and may be another controller in specific implementation), a forwarding network 12, and a plurality of servers 13 (including a server 1, a server 2, a server 3, and the like); the forwarding network 12 is a tunnel forwarding network, for example, a VXLAN network, and the starting edge forwarding device of the network performs VXLAN tunnel encapsulation on a message after receiving the message sent by the source device, then forwards the message on the forwarding network, performs VXLAN tunnel encapsulation removal when reaching the destination edge forwarding device, and then sends the message to the destination device.
A plurality of virtual machines VM and OVS (open vswitch) may be disposed in the server, referring to fig. 2, the OVS is a piece of virtual switching software, and is referred to as a virtual switch in the following embodiments, and the OVS is mainly used in a virtual machine VM environment, supports a plurality of virtualization technologies as a virtual switch, and is responsible for transferring traffic between VMs in the server, and implementing communication between the VMs and an external network, such as traffic forwarding between a VM in the server 1 and a VM in the server 2.
In this embodiment, Openflow session connection is established between the VCF controller 11 and the OVS in the server, Openflow is a communication interface standard between one controller and a forwarding layer defined in the SDN architecture, and allows direct access and operation of a forwarding plane of a network device, and the VCF controller 11 and the OVS in the server communicate with each other through an Openflow Channel (Openflow Channel). The Openflow channel also passes through the forwarding network 12 shown in fig. 1, for example, one Openflow channel 14 shown in fig. 1, and the Openflow channel is used for communication between the VCF controller 11 and the OVS of the server 1, for example, the OVS of the server 1 reports the device state to the VCF controller, or the VCF controller issues a flow table to the OVS, and the like.
Specifically, the messages transmitted between the VCF controller 11 and the OVS of the server through the openflow channel are control messages and protocol messages, for example, messages for establishing openflow session connection between the VCF controller and the OVS of the server, or messages for reporting an interface state to the controller by the server, or messages such as a certain instruction or a flow table issued by the controller to the OVS of the server; while the messages between the servers are typically data messages, e.g. the server 1 sends a service message to the server 2. For example, the VCF controller 11 issues a flow table to the OVS, and the OVS performs flow forwarding according to the flow table, for example, forwarding the flow of the VM of the server 1 to the server 2, and the like, so that it is necessary to ensure effective delivery of the control message and the protocol message between the VCF controller 11 and the OVS, so as to ensure correctness of the OVS in service forwarding. If the control packet and the protocol packet between the VCF controller 11 and the OVS are discarded in the transmission process, the controller does not receive the status packet reported by the server, and cannot acquire the latest network link status, and a forwarding path calculation error may affect service execution, or the server may not receive the latest flow table issued by the controller, and may also cause a forwarding error of service traffic. Therefore, the message control method of this embodiment is to ensure the prior forwarding of the control message and the protocol message between the VCF controller and the OVS, and reduce the discard.
Still taking openflow session between the VCF controller 11 and the OVS on the server 1 as an example, the message control method of this embodiment ensures that the message between the controller and the OVS is always sent with high priority in the channel 14, as shown in fig. 1, the edge forwarding device of the forwarding network is a VxLAN Tunnel End Point (VTEP), for example, the VTEP includes VTEP1, VTEP2, VTEP3, and VTEP4, where the channel 14 is a forwarding channel between the VCF controller 11 and the server 1, VTEP1 is an edge forwarding device directly connected to the server 1, and VTEP4 is an edge forwarding device directly connected to the VCF controller 11. Fig. 3 shows the steps of the message control method, including:
301. the controller acquires edge forwarding equipment in a tunnel forwarding network;
in this step, it is assumed that it is currently guaranteed that a message between the controller and the OVS on the server 1 is preferentially sent, where the message is sent through the forwarding channel 14, the forwarding channel connects the controller and the OVS of the server 1, the channel includes a tunnel forwarding network edge forwarding device VTEP1, a VTEP4, and each intermediate forwarding device in the network, where VTEP1 is connected to the server, and VTEP4 is connected to the controller. The controller is to acquire the edge forwarding devices in the tunnel forwarding network, i.e., is to know VTEP1 and VTEP4, and knows that VTEP1 is an edge forwarding device directly connected to the server and VTEP4 is an edge forwarding device directly connected to the controller.
In the SDN, an SDN controller has a topology management function and can automatically discover a network topology structure, and the topology management function is to monitor and collect information of forwarding equipment in a network at any time and feed back an equipment working state and a link state of the network in time. For example, in order to implement topology management, the VCF controller may send a Link Layer Discovery Protocol (LLDP) message to the forwarding device at regular time, and know which ports are connected according to the LLDP message fed back by the forwarding device, so as to analyze the entire network topology. After the VCF controller establishes an openflow session with the OVS of server 1, the VCF controller is able to know the edge forwarding devices VTEP1 and VTEP4 of the forwarding network between itself and the OVS through topology auto-discovery, in one example, the OVS and VTEP may be on the same device.
302. The controller sends a message control strategy to the edge forwarding equipment;
in this step, the controller sends a message control policy to VTEP1 and VTEP4, in order to notify VTEP1 and VTEP4 that when sending a message between the controller and the OVS, the priority of the message is set to be high, thereby ensuring priority forwarding. For example, in a tunnel forwarding network shown in fig. 1, forwarded messages include data messages, control messages between a controller and an OVS, and protocol messages, when forwarding traffic is large, the intermediate forwarding device can preferentially send the control messages and the protocol messages, and even if the messages are to be discarded, the intermediate forwarding device discards the data messages first, and preferentially ensures forwarding of the control messages and the protocol messages between the controller and the OVS.
To implement the preferential transmission of control packets and protocol packets by forwarding devices, in the method of this embodiment, a VCF controller sends a packet control policy to edge forwarding devices VTEP1 and VTEP4 of a forwarding network, VTEP1 and VTEP4 are two end points in a tunnel forwarding network on a forwarding path, for example, if the controller sends a certain control packet to an OVS of a server, VTEP4 is a start point forwarding device of the control packet on the tunnel forwarding network, the packet control policy of this step instructs VTEP4 to set the control packet, so that the packet is sent with high priority on subsequent forwarding paths (VTEP4 — intermediate forwarding device — VTEP1 — OVS).
303. And the edge forwarding equipment sets the priority of the message between the controller and the server to be high according to the message control strategy.
In this step, the edge forwarding device sets the priority of the packet between the controller and the server to a high priority according to the packet control policy sent by the controller, so that the packet is sent preferentially on the forwarding path. For example, if the priority of the control packet of the OVS sent by the controller to the server 1 is set to the highest priority by the edge forwarding device VTEP4, the forwarding devices in the tunnel forwarding network on the subsequent forwarding path will all forward the packet according to the highest priority; for example, the value of EXP in the message is set to 7 (i.e. the value of the highest priority level) by VTEP4, when the message is transmitted from VTEP4 to the intermediate forwarding device, the intermediate forwarding device will also send the message according to the priority level, thereby ensuring that the message is sent preferentially over the entire path.
In the message control method of this embodiment, the SDN controller sends the message control policy to the edge forwarding device of the forwarding network, so that the edge forwarding device sets the message to be sent preferentially on the forwarding path according to the policy, thereby ensuring normal operation of an openflow session between the VCF controller and the server.
The transmission of two-way messages between the VCF controller and the OVS of the server 1 is described as follows:
for example, in connection with fig. 1, the VCF controller may send a message control policy to VTEP4, the policy indicating "set its priority to high priority when the destination address of a message received from the VCF controller is the OVS of server 1". Specifically, the VTEP4 configures the policy on the interface v1, the interface v1 is an interface where the VTEP4 is connected to the VCF controller, and when the destination address of the packet received by the interface v1 is the OVS of the server 1, the interface v1 is equivalent to the entry of the packet at the tunnel forwarding network, and the value of EXP of the packet is set to the value 7 with the highest priority at the entry, so that the forwarding devices, VTEP1, and the like on the path of the tunnel forwarding network in the following process all ensure that the packet is sent preferentially according to the highest priority.
For another example, in conjunction with fig. 1, the VCF controller may send a message control policy to VTEP1, the policy indicating "when a message received from a server is destined for the VCF controller, its priority is set to high priority". Specifically, VTEP1 configures the policy on interface v2, interface v2 is an interface where VTEP1 connects to a server, and according to the policy, when the destination address of the packet received by interface v2 is a VCF controller, VTEP1 sets the value of EXP of the packet to be 7, which is the highest priority. The interface v2 is equivalent to that the message sent from the OVS of the server 1 to the VCF controller is at the entrance of the tunnel forwarding network, and the value of EXP of the message is set as the highest priority at the entrance, so that the subsequent forwarding devices on the tunnel forwarding network path, VTEP4, and the like will send the message preferentially according to the highest priority.
Optionally, the VCF controller of the embodiment of the present invention sends a message control policy to the edge forwarding device, and the policy may be set according to the following manner:
the VCF controller issues the policy to each edge forwarding device upon initial network topology discovery. For example, when the SDN network shown in fig. 1 is established, the VCF controller performs topology management, and knows that the edge forwarding device connected to the VCF controller and the server is VTEP1, for example, the edge forwarding device connected to the server 1 is VTEP2, and the like. The VCF controller may issue a message control policy to the edge forwarding devices, and set the priority of the message to the highest priority when the destination address of the message received by VTEP1 and VTEP2 from the respective server is the VCF controller.
Optionally, the VCF controller may select several important edge forwarding devices to transmit instead of transmitting the policy to all edge forwarding devices. For example, if the traffic on the server 1 and the server 3 is important and the openflow session between the VCF controller and the two servers needs to be guaranteed, the VCF controller sends a message control policy to the VTEP1 connected to the server 1 and the VTEP3 connected to the server 3, and instructs the two edge forwarding devices to set the message priority whose destination address is the VCF controller to the highest priority. Similarly, for the VTEP4 connected to the VCF controller, the controller may send a message control policy that sets the priority of the message to the highest priority when the destination address of the message is the OVS of server 1 or the OVS of server 3.
Embodiments of the present invention further provide a controller, such as a VCF controller, which may execute the method according to the foregoing method embodiments of the present invention, as shown in fig. 4, where the controller may include: a device determination unit 41 and a policy transmission unit 42; wherein,
a device determining unit 41, configured to obtain an edge forwarding device in the tunnel forwarding network, where the edge forwarding device is connected to the controller or the server;
a policy sending unit 42, configured to send a message control policy to the edge forwarding device, so that the edge forwarding device sets the priority of the message between the controller and the server to be a high priority according to the message control policy.
Further, when the edge forwarding device is an edge forwarding device connected to the controller; the policy sending unit 42 is specifically configured to send the following message control policy to the edge forwarding device: and if the destination address of the message is the virtual switch on the server, setting the priority of the message as high priority.
Further, when the edge forwarding device is an edge forwarding device connected to the server; the policy sending unit 42 is specifically configured to send the following message control policy to the edge forwarding device: and if the destination address of the message is the controller, setting the priority of the message as high priority.
An embodiment of the present invention further provides a forwarding device, where the forwarding device is an edge forwarding device in a forwarding network, for connecting with the controller or the server, such as VTEP1 or VTEP4 in fig. 1, and the forwarding device may perform the method of the foregoing method embodiment of the present invention, as shown in fig. 5, and the forwarding device may include: a policy receiving unit 51 and a message control unit 52; wherein,
a policy receiving unit 51, configured to receive a message control policy sent by the controller;
a message control unit 52, configured to set a priority of the message between the controller and the server to a high priority according to the message control policy.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A message control method is applied to a Software Defined Network (SDN), wherein the SDN comprises a controller, a server, a tunnel forwarding network and an edge forwarding device of the tunnel forwarding network; the method comprises the following steps:
the controller acquires edge forwarding equipment in the tunnel forwarding network, wherein the edge forwarding equipment is connected with the controller or the server;
the controller sends a message control strategy to the edge forwarding equipment, so that the edge forwarding equipment sets the priority of the message between the controller and the server to be high priority according to the message control strategy, and the message between the controller and the server is ensured to be preferentially forwarded relative to the message between the servers; the messages between the controller and the server comprise control messages and protocol messages;
the packet control policy sent by the controller to the edge forwarding device connected to the controller specifically includes:
and if the destination address of the message is the virtual switch on the server, setting the priority of the message as high priority.
2. The method according to claim 1, wherein the packet control policy sent by the controller to the edge forwarding device connected to the server specifically includes:
and if the destination address of the message is the controller, setting the priority of the message as high priority.
3. A message control method is applied to a Software Defined Network (SDN), wherein the SDN comprises a controller, a server, a tunnel forwarding network and an edge forwarding device of the tunnel forwarding network; the method comprises the following steps:
the edge forwarding equipment receives a message control strategy sent by the controller;
the edge forwarding equipment sets the priority of the message between the controller and the server to be high priority according to the message control strategy so as to ensure that the message between the controller and the server is preferentially forwarded relative to the message between the servers; the messages between the controller and the server comprise control messages and protocol messages;
when the edge forwarding device is an edge forwarding device connected to the controller, the received packet control policy specifically includes:
and if the destination address of the message is the virtual switch on the server, setting the priority of the message as high priority.
4. The method according to claim 3, wherein when the edge forwarding device is an edge forwarding device connected to the server, the received packet control policy specifically includes:
and if the destination address of the message is the controller, setting the priority of the message as high priority.
5. A controller applicable to a software defined network, SDN, the SDN comprising the controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; characterized in that the controller comprises:
an apparatus determining unit, configured to acquire an edge forwarding apparatus in the tunnel forwarding network, where the edge forwarding apparatus is connected to the controller or the server;
a policy sending unit, configured to send a message control policy to the edge forwarding device, so that the edge forwarding device sets a priority of a message between the controller and the server to a high priority according to the message control policy, so as to ensure that the message between the controller and the server is preferentially forwarded relative to the message between the servers; the messages between the controller and the server comprise control messages and protocol messages;
when the edge forwarding device is an edge forwarding device connected to the controller;
the policy sending unit is specifically configured to send the following message control policy to the edge forwarding device: and if the destination address of the message is the virtual switch on the server, setting the priority of the message as high priority.
6. The controller of claim 5, wherein when the edge forwarding device is an edge forwarding device connected to the server;
the policy sending unit is specifically configured to send the following message control policy to the edge forwarding device: and if the destination address of the message is the controller, setting the priority of the message as high priority.
7. A forwarding device applicable as an edge forwarding device in a software defined network, SDN, the SDN comprising a controller, a server, a tunnel forwarding network, and an edge forwarding device of the tunnel forwarding network; characterized in that said forwarding device comprises:
a policy receiving unit, configured to receive a message control policy sent by the controller;
the message control unit is used for setting the priority of the message between the controller and the server to be high priority according to the message control strategy so as to ensure that the message between the controller and the server is preferentially forwarded relative to the message between the servers; the messages between the controller and the server comprise control messages and protocol messages;
when the edge forwarding device is an edge forwarding device connected to the controller, the received packet control policy specifically includes:
and if the destination address of the message is the virtual switch on the server, setting the priority of the message as high priority.
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| CN112019545B (en) * | 2020-08-28 | 2022-08-12 | 杭州安恒信息安全技术有限公司 | Honeypot network deployment method, device, equipment and medium |
| CN112565085A (en) * | 2020-12-28 | 2021-03-26 | 安徽皖通邮电股份有限公司 | SDN controller resource control and policy validation condition sensing method for forwarding equipment |
| CN115842734B (en) * | 2023-01-30 | 2024-03-29 | 阿里巴巴（中国）有限公司 | Network management method, controller and SDN network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841189A (en) * | 2014-02-28 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Method for data communication between control cloud computing center servers |
| CN104092565A (en) * | 2014-06-24 | 2014-10-08 | 复旦大学 | Multi-tenant policy-driven type software-defined networking method for cloud data center |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100399770C (en) * | 2004-08-18 | 2008-07-02 | 华为技术有限公司 | Sending controller channel stream limiting method |
| CN101110848B (en) * | 2006-07-20 | 2011-05-04 | 华为技术有限公司 | Method for detecting channel trouble |
| CN101335685B (en) * | 2007-06-27 | 2012-03-07 | 上海博达数据通信有限公司 | Method implementing priority process of special packet by redirecting technique |
| US9225635B2 (en) * | 2012-04-10 | 2015-12-29 | International Business Machines Corporation | Switch routing table utilizing software defined network (SDN) controller programmed route segregation and prioritization |
-
2014
- 2014-10-31 CN CN201410606894.9A patent/CN104320322B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841189A (en) * | 2014-02-28 | 2014-06-04 | 上海斐讯数据通信技术有限公司 | Method for data communication between control cloud computing center servers |
| CN104092565A (en) * | 2014-06-24 | 2014-10-08 | 复旦大学 | Multi-tenant policy-driven type software-defined networking method for cloud data center |
Non-Patent Citations (2)
| Title |
|---|
| SDN控制器架构研究与功能开发;吴锦辉;《万方学术论文数据库》;20140917;全文 |
| 存储SDN控制器管理软件的设计与实现;闵汇峰;《万方学术论文数据库》;20140917;全文 |
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