CN102315970B - Data center bridging parameter configuration method, system and network equipment - Google Patents
Data center bridging parameter configuration method, system and network equipment Download PDFInfo
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Abstract
The invention provides a data center bridging parameter configuration method, a system and network equipment. The method comprises the steps that: first equipment receives parameter configuration messages sent by other equipment except the first equipment, and the parameter configuration messages comprise priority level information and data center bridging (DCB) parameters requiring the consistent configuration; the first equipment determines the parameter configuration messages with the specified priority level information into root equipment parameter configuration messages according to thepriority level information in the local parameter configuration messages and the priority level information in the received parameter configuration messages; and the first equipment carries out localconfiguration according to the DCB parameters requiring the consistent configuration in the equipment parameter configuration messages. In the technical scheme provided by the data center bridging parameter configuration method, all equipment can be configured according to the same DCB parameters, the consistent configuration of the DCB parameters requiring the consistent configuration is realized, in addition, the manual configuration by managers is not needed in the whole process, the automatic configuration of the DCB parameters in the data center is realized, and the configuration efficiency of the DCB parameters is improved.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of data center bridging (Data Center Bridging; Referred to as: DCB) method for parameter configuration, system and the network equipment.
Background technology
Usually can there be following three kinds of flows in data center: memorying data flow, high-performance calculation stream and Ethernet stream.The requirement of different data streams is different, and for example: memorying data flow requires without packet loss, and high-performance calculation stream requires low the delay, and Ethernet stream allows certain packet loss and time delay.Conventional data centers is used three kinds of data flow that the dissimilar network carrying is different, to satisfy the requirement of every kind of data flow.This method is suitable for small-sized data center, but the expansion along with data center's scale, the network that moves simultaneously three types is not a kind of solution of economy, so the scheme of three kinds of different types of data streams of unified employing Ethernet bearing occurred, is called as the uniform data Center Scheme.
The different requirements of three kinds of different types of data streams are satisfied by the definition additional mechanism in the uniform data center.For example: (the Institute of Electrical and Electronics Engineers of IEEE-USA; Referred to as: IEEE) defined following standard: strengthen transmission and select (Enhanced Transmission Selection; Referred to as: ETS), flow control (the Priority-based Flow Control of Priority-based; Referred to as: PFC) with data center's bridge exchange agreement (Data Center Bridging Capability Exchange Protocol; Referred to as: DCBX) etc.Wherein, ETS bursts for the extensive flow of avoiding a kind of data stream type and affects the data flow of other types, for dissimilar data flow provides minimum Bandwidth guaranteed.For one type data flow, only in the situation that the bandwidth of other types data flow does not take, could use the extra bandwidth of distributing outside the bandwidth, this regulation can make polytype data flow harmonious coexistence in consolidated network.PFC is used for satisfying the three types data flow when Ethernet coexists, and guarantees memorying data flow without packet loss, and on other two types of data flow without impact.DCBX is a kind of based on Link Layer Discovery Protocol (Link Layer Discovery Protocol; Referred to as Extended Protocol LLDP), be used for uniform data in the heart the equipment room auto negotiation and configure PFC, ETS and the DCB ability parameter such as characteristic protocol massages priority.
Wherein, DCBX arrives neighbours' DCB capacity scheme information by study, and neighbours' DCB parameter and local DCB parameter compared analysis, thereby carries out consistency error detection and configuration synchronization that auto negotiation is realized two ends DCB parameter configuration when not identical.But, because DCBX uses unidirectional protocol LLDP to realize, only exchange configuration and management information with neighbours, the neighbours that can't realize striding equipment find, therefore DCBX is mainly used on the equipment of edge access layer, be used for guiding the automatic configuration of carrying out the DCB parameter with the terminal server of edge access layer equipment connection, and the DCB parameter of two equipment of striding equipment (for example two station terminal servers) can't realize the automatic synchronization configuration by DCBX.In addition, if DCB parameter that should be identical between each equipment in the network is different, will cause the failure of uniform data center construction, therefore, in order to guarantee the uniform data center construction, still the DCB parameter that needs each equipment of keeper's manual configuration, with realize whole network should be identical the consistent configuration of DCB parameter.But the efficient of keeper's manual configuration DCB parameter is lower, is unfavorable for the rapid build at uniform data center.
Summary of the invention
The invention provides a kind of data center bridging parameter configuration method, system and the network equipment, need the problem of keeper's manual configuration DCB parameter in order to solve prior art, realize the automatic configuration of DCB parameter, improve the allocative efficiency of DCB parameter.
The invention provides a kind of data center bridging DCB method for parameter configuration, comprising:
The first equipment receives the parameter configuration message that other equipment except described the first equipment send, and described parameter configuration message comprises the DCB parameter of precedence information configuration consistent with needs;
Described the first equipment is according to the precedence information in the precedence information in the local parameter configuration message and all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is root device parameter configuration message;
Described the first equipment carries out this locality configuration according to the DCB parameter of the consistent configuration of the needs in the described root device parameter configuration message.
The invention provides a kind of network equipment, comprising:
Receiver module is used for receiving the parameter configuration message that other network equipments except the described network equipment send, and described parameter configuration message comprises the DCB parameter of precedence information configuration consistent with needs;
Determination module is used for according to the precedence information of local parameter configuration message and the precedence information in all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is root device parameter configuration message;
Local configuration module is used for carrying out this locality configuration according to the consistent DCB parameter that configures of the needs of described root device parameter configuration message.
The invention provides a kind of data center bridging DCB parameter configuring system, comprising: arbitrary network equipment provided by the invention.
Data center bridging DCB method for parameter configuration of the present invention, system and the network equipment, the first equipment in the data center receives the parameter configuration message that other equipment send, the parameter configuration message of selecting assigned priority information according to the precedence information in the parameter configuration message from local parameter configuration message and all parameter configuration messages of receiving is as root device parameter configuration message, and carries out this locality according to the DCB parameter in the root device parameter configuration message and configure.Adopt technical solution of the present invention, all devices in the data center all can be selected to carry the parameter configuration message of assigned priority information as root device parameter configuration message according to the precedence information in the parameter configuration message, all devices is configured according to identical DCB parameter, needing to have realized the consistent configuration of the DCB parameter of consistent configuration, whole process does not need keeper's manual configuration, realize the automatic configuration of DCB parameter in the data center, improved the allocative efficiency of DCB parameter.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the DCB method for parameter configuration that Fig. 1 provides for one embodiment of the invention;
The flow chart of the DCB method for parameter configuration that Fig. 2 provides for another embodiment of the present invention;
Fig. 3 A is a kind of partial structurtes schematic diagram of the data center of one embodiment of the invention use;
Fig. 3 B is the another kind of partial structurtes schematic diagram of the data center of one embodiment of the invention use;
The structural representation of the network equipment that Fig. 4 provides for one embodiment of the invention;
The structural representation of the network equipment that Fig. 5 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The flow chart of the DCB method for parameter configuration that Fig. 1 provides for one embodiment of the invention.As shown in Figure 1, the DCB parameter configuration of the present embodiment comprises:
The first equipment in the present embodiment can be any equipment in the data center, such as the access switch that is in the data center edge, be positioned at the core switch on access switch upper strata etc.
In specific implementation process, in the starting stage, need the DCB parameter of consistent configuration (being identical configuration) in all devices in the data center encapsulates oneself in the parameter configuration message precedence information and the own data center that configures, then the parameter configuration message is sent to other equipment except oneself.Simultaneously, for every equipment in the data center, can as first equipment of the present embodiment, namely receive the parameter configuration message that other equipment send again.Usually, need the DCB parameter of identical configuration mainly to comprise in the data center: the priority of ETS, PFC, specific protocol message etc., the described needs of the present embodiment unanimously configure the DCB parameter can comprise one of them or its combination in any.Wherein, the DCB method for parameter configuration of the present embodiment is particularly useful for the configuration to the priority of specific protocol message.
Wherein, every equipment uses identical precedence information, for example can be to be the priority facility of every equipment manual configuration, medium access control (the Medium Access Control of every equipment itself by the keeper in advance; Referred to as: MAC) wherein any one or its combination such as address.
Wherein, assigned priority information can be limit priority information.A kind of execution mode of definite root device parameter configuration message comprises: the first equipment compares the precedence information in the precedence information in the local parameter configuration message and the parameter configuration message that receives; For the precedence information parameter configuration message lower than the precedence information in the local parameter configuration message, the first equipment abandons it; For the precedence information parameter configuration message higher than the precedence information in the local parameter configuration message, the first equipment is temporary with it.Then, the first equipment is done further comparison with the precedence information in all parameter configuration messages of keeping in, and selects the highest parameter configuration message of precedence information, is root device parameter configuration message.Wherein, when the precedence information in the parameter configuration message that the precedence information in the local parameter configuration message receives than all is all high, then the first equipment with the local parameter configuration message as root device parameter configuration message.
In various embodiments of the present invention, the parameter configuration message that precedence information is the highest is called root device parameter configuration message, and the equipment corresponding with root device parameter configuration message is called root device.This shows, the method for the present embodiment is actual to be to determine an equipment as root device in all devices of data center, and all non-root devices receive also the synchronously DCB parameter configuration of root device.Wherein, determining by the precedence information decision of root device determined different equipment as root device thereby allow to pass through to change precedence information, and as seen the present embodiment also has the advantage of flexible configuration.
In the execution mode of above-mentioned definite root device parameter configuration message, the first equipment selects the highest parameter configuration message of precedence information as root parameter configuration message, but be not limited to this, can also determine root device parameter configuration message by other various ways.For example: it is that the parameter configuration message of certain occurrence of making an appointment is as root device parameter configuration message that the first equipment can be selected precedence information.Again for example: the first equipment can also select the minimum parameter configuration message of precedence information as root device parameter configuration message.
After determining root device parameter configuration message, the first equipment carries out this locality configuration according to the DCB parameter in the root device parameter message.For example: when the DCB parameter comprised the information of supporting ETS, local ETS function was opened in the configuration of the first equipment.Again for example: when the DCB parameter comprised the information of supporting PFC, local PFC function was opened in the configuration of the first equipment.
Wherein, for every equipment in the data center, all adopt in a like fashion and determine root device parameter configuration message according to precedence information, that is to say that the root device parameter configuration message that every equipment is determined is identical.When all devices in the data center all carries out this locality configuration according to the DCB parameter in the root device parameter configuration message after, need the DCB parameter of identical configuration just to realize consistent configuration in the whole data center.
The DCB method for parameter configuration of the present embodiment, the first equipment in the data center receives the parameter configuration message that other equipment send, the parameter configuration message of selecting assigned priority information according to the precedence information in the parameter configuration message from local parameter configuration message and all parameter configuration messages of receiving is as root device parameter configuration message, and carries out this locality according to the DCB parameter in the root device parameter configuration message and configure.After all devices in the data center all selects the parameter configuration message of assigned priority information to carry out this locality configuration as root device parameter configuration message and according to identical root device parameter configuration message, need the DCB parameter of identical configuration will realize consistent configuration on all devices, whole process does not need keeper's manual configuration, realize the automatic configuration of DCB parameter in the data center, improved the allocative efficiency of DCB parameter.
The flow chart of the DCB method for parameter configuration that Fig. 2 provides for another embodiment of the present invention.As shown in Figure 2, the method for the present embodiment comprises:
Wherein, step 201 and step 202 can referring to the description of step 101 and step 102, not repeat them here.
After selecting root device parameter configuration message, the first equipment carries out this locality configuration according to the DCB parameter in the root device parameter configuration message, thereby realizes the consistent configuration of DCB parameter that should be identical in the whole data center.Wherein, when the root device parameter configuration message of selecting when the first equipment was exactly the parameter configuration message that generates according to its default configuration of the first equipment (or it sends to the parameter configuration message of other equipment in the starting stage), it can omit the operation of carrying out local configuration.
Further, after the first equipment is determined root device parameter configuration message, with other parameter configuration packet loss, the memory space that takies to discharge other parameter configuration messages, be conducive on the one hand conserve storage, another fermentation also lays the foundation for follow-up continuation receives the parameter configuration message.
Further, all devices reaches the consistent speed of DCB parameter configuration in the whole data center in order to accelerate, after the first equipment is determined root device parameter configuration message, the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message is encapsulated in the local parameter configuration message of oneself, then when the default transmission cycle arrives, the local parameter configuration message is sent.In this way, can gradually reduce the quantity of the DCB parameter of the consistent configuration of needs that exists in the data center, and then the processing load of reduction follow-up equipment, the speed of raising DCB parameter configuration finally improves whole data center and reaches the consistent speed of DCB parameter configuration.
Wherein, the first equipment is encapsulated in the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message in the local parameter configuration message, then according to the default transmission cycle with its specific implementation that sends be: because configuration parameter only exists in certain field of root device parameter configuration message usually, therefore the first equipment with the DCB parameter extraction in the root device parameter configuration message out, then in the parameter configuration message of Reseal to each port of the first equipment, then by each port parameter configuration message is separately sent.Wherein, may be different for the parameter configuration message on the different port; Described difference refers to that mainly other fields of parameter configuration message may be different.
The DCB method for parameter configuration of the present embodiment, can make in the data center all devices determine that all the parameter configuration message of assigned priority information is root device parameter configuration message and carries out this locality configuration according to identical root device parameter configuration message, need the DCB parameter of identical configuration to realize consistent configuration on all devices, whole process does not need keeper's manual configuration, realize the automatic configuration of DCB parameter in the data center, improved the allocative efficiency of DCB parameter.In addition, the first equipment has the advantage of conserve storage with the parameter configuration packet loss outside the root device parameter configuration message.Moreover the first equipment is encapsulated in the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message in the local parameter configuration message and sends, and can further improve the speed that DCB parameter in the whole data center reaches consistent configuration.
Usually, data center adopts multistage deployment architecture to realize, for example: comprise the access layer equipment that is in the data center edge, be in third level equipment on the access layer equipment, be in the second level equipment on the third level equipment and be in first order equipment on the equipment of the second level.Wherein, the access layer equipment that is in the data center edge need to be connected with terminal server, except carrying out also needing to guide connected terminal server to carry out relevant configuration after this locality configuration.Based on this, in the various embodiments described above, when the first equipment was the access layer equipment that is in the data center edge (can referred to as edge access equipment), the first equipment also carried out the DCB parameter configuration according to the connected terminal server of DCB Leading of parameters of the consistent configuration of the needs in the root device parameter configuration message.DCB parameter herein mainly refers to the specific protocol message priority.Like this, message to certain protocol type, each access layer equipment that is in the edge can adopt equal priority that the terminal server that it connects is guided configuration, so that the terminal server in the whole data center is to the identical priority of the message of same protocol type configuration, and then different error of transmission problems that cause of priority configuration because of the message of same protocol type have been solved.
Further, in the various embodiments described above, the equipment in the data center (comprising the first equipment) can according to the default transmission cycle, send the local parameter configuration message to other equipment.This local parameter configuration message both can be that the equipment DCB parameter that its default configuration is corresponding is encapsulated in the parameter configuration message and generates, and also can be will need the DCB parameter of consistent configuration to be encapsulated in the parameter configuration message and generate in the root device parameter configuration message.Wherein, in the starting stage, individual device sends when the transmission cycle arrives is the parameter configuration message that generates according to self default configuration, but As time goes on, when equipment is determined precedence information than the high root device parameter configuration message of local parameter configuration message priority, will with needing the DCB parameter of consistent configuration to be encapsulated in the local parameter configuration message in the root device parameter configuration message, then when the transmission cycle arrives, it be sent.What namely no matter carry in the local parameter configuration message is DCB parameter corresponding to local default configuration or the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message, all can be according to default transmission cycle transmission.Wherein, the transmission cycle can be carried out the adaptability setting according to the scale of data center, for example can be set to 30s.In this way, can reduce the processing load of each equipment, save the network bandwidth resources of data center.
Further, in the DCB of the various embodiments described above configuration parameter collocation method, the first equipment can also preset the configuration take-effective time, when this locality configuration of carrying out according to the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message arrives preset configuration during the entry-into-force time, the first equipment is the default configuration of the first equipment with local configuration restore, and the DCB parameter that default configuration is corresponding is encapsulated in the local parameter configuration message.Then, when the default transmission cycle arrived, the first equipment sent the local parameter configuration message.Wherein, the default entry-into-force time can be carried out the adaptability configuration according to characteristics such as data center's scale, stability, for example can be set to 1 minute.
Specifically, when the first equipment carries out this locality configuration according to the DCB parameter of the consistent configuration of the needs in the root device parameter configuration message, start a timer, and the configuration take-effective time of timing for presetting of timer is set.When the timer timing finished, the first equipment was the default configuration of the first equipment with local configuration restore, and the DCB parameter that default configuration is corresponding is encapsulated in the local parameter configuration message, and the cycle to be sent when arriving sends the local parameter configuration message.
In data center, usually adopt (the Internet Engineering Task Force of Internet Engineering working group; Referred to as: IETF) DiffServ (the Differentiated Service Mode of regulation; Referred to as: DiffServ) system.DiffServ system regulation: each message that transmits in network will be divided into different classifications, and classification information will be carried in certain field of message.Wherein, the classification information of message mainly refers to the priority level of message.In actual applications, the priority level of message can be carried in the two layer message head; Front 3 bits in the Tag Control Information field (Tag Control Information) for example, these 3 bits are commonly called user priority level (User Priority bits).The priority level of message also can be carried in the three-tier message head; For example: (the Type Of Service of the COS in the IPv4 heading; Referred to as: TOS) front 3 bits of the classification of the transmission in field or the IPv6 heading (Traffic Class) field, these fields are commonly called IP precedence value (IP precedence value); Again for example: front 6 bits of the Traffic Class field in the IPv6 heading are called as and are called Differentiated Services Code Point (Differentiated Services Code Point; Referred to as: DSCP)) value (value).
That is to say, in data center, message transmits based on the priority level that configures and receives.After an equipment in the data center receives a message, usually identify the priority level of this message according to following rule.(1) for general non-IP message: if message itself does not comprise QoS information, namely do not comprise User Priority bits in the two layer message head of message, then can be according to default-service classification field (the Class of Service of message input port; Referred to as: CoS) value obtains the priority level of message.The default CoS value of input port is the same with the User Priority bits of message, and span is 0～7.If message itself comprises QoS information, namely comprise User Priority bits in the two layer message head of message, then can directly from message, obtain the priority level of message.(2) for the IP message: if the trust mode of input port then directly obtains the priority level of message for trusting preferential (Trust ip-precedence) pattern of IP from the IP precedence value field (its front 3 bits) of IP message; And when outgoing message, the priority level of obtaining is filled among the User Priority bits (perhaps being called cos field) of outgoing message.If the trust mode of input port when not comprising User Priority bits in the two layer message head, can obtain according to the default CoS value of message input port the priority level of message for trusting CoS (Trust CoS); When comprising User Priority bits in the two layer message head, directly from the two layer message head, obtain the priority level of message, and directly with the IP precedence value field of CoS value covering message, or fill the value of the dscp field of message to the mapping (CoS-to-DSCP map) of DSCP according to user configured CoS.If a pattern of input message is Trust DSCP, then directly obtain the priority level of message from the dscp field (front 6 bits) of IP message, and obtain the CoS value of message according to user configured DSCP to the mapping (DSCP-to-CoS map) of CoS.
After the priority level of recognition of devices outgoing packet, process message according to the service type that pre-configured different priorities is not corresponding, when the priority level improperly-configured of message, will cause and adopt incorrect service type to process message, thereby cause error of transmission.For example: take structure shown in Fig. 3 A as example, suppose that server 31 and server 32 carry out the FCoE communication, and the priority of hypothesis FCoE message is 3, and switch 33 is enabled PFC function (namely enabling not packet loss service) at priority 3, and allows packet loss in priority 0.Wherein, when server 32 when to send priority be 3 FCoE message, switch 33 can adopt be transmitted to server 31 without the packet loss server with it; Suppose server 31 owing to there not being correct configuration, causing the priority of the FCoE message that sends is 0, switch 33 will adopt and allow the packet loss server that the message of server 31 is transmitted like this, and this has just caused the FCoE message between server 31 and the server 32 packet loss to occur.
By as seen above-mentioned, because the configuration of the message priority in DCB parameter difference has caused the message transmissions mistake on the terminal server.And after adopting various embodiments of the present invention to realize the consistent configuration of the DCB parameter that whole data center should identical configuration, can address the above problem.Following embodiment will with the example that is configured to priority, further specify technical solution of the present invention.
The DCB method for parameter configuration of the present embodiment mainly is the process that message priority is configured, its main thought is: determine that from all devices an equipment is as root device, take root device as benchmark, all non-root devices receive also the synchronously priority deployment configuration of root device.Carry out this locality configuration for non-root device according to the priority deployment of root device; For edge access equipment, when carrying out this locality configuration according to the priority deployment of root device, dispose simultaneously the configuration of the connected terminal server of guiding according to the priority of root device.
In the implementation process of the present embodiment, a problem that at first faces is: which platform equipment how to confirm selects as root device.In the present embodiment, using simultaneously is that the priority facility of every equipment configuration and the MAC Address of equipment etc. are as the foundation of election root device in advance.That is to say, in the present embodiment, the precedence information in the parameter configuration message comprises the information such as MAC Address of priority facility and the equipment of equipment simultaneously.Wherein, priority facility is used for the equipment election root device for data center, can be every equipment configuration in advance by the keeper, and allow for the identical priority facility of distinct device configuration, but comparatively be preferably the different priority facility of distinct device configuration.The rank of higher this equipment of explanation of priority facility is higher, and this equipment more might be chosen as root device.In addition, in order to solve loop problem, also carry jumping figure information in the precedence information of the parameter configuration message of the present embodiment, be used for identifying the jumping figure of a certain DCB parameter current residual.
In specific implementation process, every equipment is encapsulated in oneself priority facility, MAC Address, the jumping figure information of DCB parameter and the DCBX priority configuration informations such as message priority information of local configuration in the parameter configuration message, is broadcast to other equipment in the data center.In the present embodiment, the parameter configuration message is the DCBX message, by the DCBX message is expanded, expands a new field, is designated as DCBX priority configuration field, and this DCBX priority configuration information is filled in respectively in the DCBX priority configuration field.The corresponding root device DCBX message that is called as of root device parameter configuration message.
In the present embodiment, the information that comprises of DCBX priority configuration field is as shown in table 1.
Table 1
Under default situations, all devices all thinks it oneself is the highest equipment of precedence information, namely when initial, each equipment is filled to the root bridge priority in the DCBX priority configuration field priority facility of oneself, and root bridge MAC is filled to the MAC Address of oneself.Then, according to the default transmission cycle, send the DCBX message that comprises DCBX priority configuration field toward all of the port.Simultaneously, every equipment also can record the relevant information of the highest equipment of current priority information.Wherein, the relevant information that records is the partial information in the DCBX priority configuration field, and is as shown in table 2.Under the default situations, the relevant information of every equipment records is oneself.
Table 2
| Root bridge priority | Root bridge MAC | Effective jumping figure | Bridge priorities | Bridge MAC |
When receiving a DCBX priority configuration information (being the DCBX message), take to receive DCBX priority configuration information and the DCBX priority configuration information of oneself compares, thereby determine root device and root device DCBX message.In the present embodiment, every equipment compares according to the priority of root bridge priority, root bridge MAC, bridge priorities, bridge MAC successively, but is not limited to this.In addition, in the present embodiment, large according to root bridge priority, root bridge MAC is little, and bridge priorities is large, and the principle that the priority ratio that bridge MAC is little is higher compares.Wherein, when only having the standard of comparison of upper level identical, compare in the standard of comparison according to next stage.For example: suppose that two DXCB priority configuration informations are respectively DCBXA and DCBXB, if the root bridge priority ratio DCBXB's of DCBXA is large, the MAC of DCBXA is larger than DCBXB's, and then the priority ratio of DCBXA is higher; If the root bridge priority of DCBXA is identical with DCBXB's, the MAC of DCBXA is larger than DCBXB's, and then the priority ratio of DCBXB is higher.
In the present embodiment, because every equipment all is to send the DCBX message to its all of the port, therefore comparatively speaking, every equipment can be received a plurality of DCBX messages, and then the present embodiment provides a kind of equipment to select the execution mode of root device DCBX message (namely selecting root device) from a plurality of DCBX messages (comprising the DCBX message that itself sends and a plurality of DCBX messages that receive).With equipment wherein, for example the first equipment is example, this execution mode specifically comprises: the first equipment is selected the highest DCBX message of priority facility from local DCBX message and all DCBX messages that receive, that is the highest DCBX message of root bridge priority.When the highest DCBX message of priority facility was unique, the first equipment DCBX message that priority facility is the highest was as root device DCBX message.When the highest DCBX message of priority facility exists when a plurality of, the first equipment is determined root device DCBX message according to the MAC Address in the precedence information from the highest DCBX message of a plurality of priority facilities.Wherein, the MAC Address in the precedence information mainly refers to the root bridge MAC in the DCBX priority configuration field.
Further, the first equipment is according to the MAC Address in the precedence information, determining root device DCBX message from the highest DCBX message of a plurality of priority facilities comprises: the first equipment selects the minimum or maximum DCBX message of root bridge MAC Address as root device DCBX message from the highest DCBX message of a plurality of priority facilities.
In addition, the first equipment except first according to root bridge priority then according to root bridge MAC, from a plurality of equipment, determine outside the root device DCBX message, also can first according to the root bridge MAC Address and then according to root bridge priority, from a plurality of equipment, determine root device DCBX message.
According to said method, every equipment all can select identical equipment as root device, and can be with the DCBX message of its transmission as root device DCBX message.For an equipment, after selecting root device DCBX message, then upgrade the relevant information of the own the highest equipment of current priority information that records; Enable simultaneously a timer, be used for recording the effective time of the partial information in the DCBX priority configuration field in the root device DCBX message, when if timer regularly finishes, then again the relevant information (being the partial information in the DCBX priority configuration field in the root device DCBX message that records) of the highest equipment of current priority information of record is updated to the relevant information of oneself.In this process, equipment also can be encapsulated in the DCBX priority configuration field in the root device DCBX message in the local DCBX message, then local DCBX message is sent from all of the port.
For edge access equipment, will according to the type of message in the DCBX priority configuration field in the DCBX message and message priority corresponding to type of message, guide connected terminal server to carry out the message priority configuration.Wherein, can carry a plurality of type of messages in the DCBX priority configuration field, and carry simultaneously the message priority corresponding with each type of message.For example: the type of message in DCBX priority configuration field is the FCoE message, and the message priority corresponding with this type of message is 3 o'clock, through behind the present embodiment, all the priority of FCoE message can be configured to 3 on every station terminal server.
Further, in the present embodiment, when receiving a DCBX message, every equipment can compare the MAC Address of the root bridge MAC Address in the DCBX message of receiving with oneself first; If identical with the MAC Address of oneself, illustrate this DCBX message be sent by oneself rap around to again here, therefore it is abandoned.Because every equipment is except sending the DCBX message that oneself generates, also can directly the DCBX priority configuration field in the root device DCBX message be encapsulated in the local DCBX message and send, might cause like this actual package in the DCBX message that certain equipment receives be by other device forwards from the DCBX priority configuration information in the DCBX message of this equipment itself, equipment directly will be abandoned from the DCBX priority configuration information in the DCBX message of self, can avoid constantly repeating to send on the one hand the problem of same DCBX priority configuration information, can save post-treatment operations on the other hand, alleviate the burden of equipment.
In addition, in the present embodiment, effective jumping figure of the DCBX priority configuration information that encapsulates in the DCBX message is set simultaneously, can prevent that also loop from occuring, when effective jumping figure becomes 0, the DCBX message that is packaged with this DCBX priority configuration information namely is dropped, the problem of having avoided same DCBX priority configuration information constantly to be sent out in loop.
Shown in Fig. 3 B, after the DCBX priority configuration through the present embodiment, the priority that will configure the FCoE message on server 34 and the server 35 is 3, suppose that switch 36, switch 37 and switch 38 have configured identical processing mode at priority 3, supposed all to open the PFC function and guaranteed that priority is transmitting without packet loss of 3 FCoE message.Based on this, 34 transmission FCoE messages are example to the present embodiment take server 35 to server, and the transmission course of FCoE message in network shown in Fig. 3 B is described.
At first, server 35 generates the FCoE messages, and the priority that the FCoE message is set is 3, this precedence information is encapsulated among the User Priority bits of FCoE message; Then the FCoE message is sent to connected switch 38.It is two layers of port that switch 38 receives inbound port (namely receiving the port of FCoE message), and its trust mode is Trust CoS pattern, therefore directly from the User Priority bits of FCoE message, obtain the precedence information of message, and according to processing mode corresponding to priority the FCoE message processed.Concrete, because being 3 FCoE message, 38 pairs of priority of switch opened the PFC function, the old friend changes planes and 38 receives can first the FCoE message be stored in the container behind the FCoE message that server 35 sends and carry out buffer memory, when the backward server 35 of the FCoE message that receives some (for example the utilance of container reaches certain percentage) sends the message that stops to send the FCoE message, then the FCoE message in the container is sent to the outbound port of switch 38, and after these FCoE messages are sent, send the message that continues to send the FCoE message to server 35, and constantly adopt this mode until server 35 sends the FCoE message.
The trust mode of the outbound port of switch 38 is Trust CoS pattern, and the old friend changes planes and 38 directly the FCoE message sent to switch 37.Switch 37 directly extracts the precedence information of message from the User Priority bits of FCoE message, identify the priority of FCoE message, according to priority the FCoE message is processed.Concrete, because being 3 FCoE message, 37 pairs of priority of switch opened the PFC function, the old friend changes planes and 37 receives can first the FCoE message be stored in the container behind the FCoE message that switch 38 sends and carry out buffer memory, switch 38 sends the message that stops to send the FCoE message behind the FCoE message that receives some (for example the utilance of container reaches certain percentage), then the FCoE message in the container is sent to the outbound port of switch 37, and after these FCoE messages are sent, send the message that continues to send the FCoE message to switch 38, and constantly adopt this mode until switch 38 sends the FCoE message.The outbound port of supposing switch 37 also is two layers of mouth, and its trust mode also is Trust CoS pattern, then directly the FCoE message is sent to switch 36.Switch 36 directly extracts the precedence information of message from the User Priority bits of FCoE message, identify the priority of message, after according to priority the FCoE message being processed, the FCoE message is sent to its outbound port; The outbound port of switch 36 is connected with server 34, belongs to two layers of mouth, and its trust mode is Trust CoS pattern, and the old friend changes planes and 36 directly the FCoE message sent to server 34.Wherein, process and the switch 37 of switch 36 receptions and transmission FCoE message are similar, do not repeat them here.Because server 34 is identical with the priority configuration of server 35, thus can successfully receive the FCoE message, simultaneously because each switch has configured identical processing mode at priority 3, therefore can realize transmitting without packet loss of FCoE message.Wherein, the handling process of FCoE message that is sent to server 35 by server 34 is similar, does not repeat them here.
In sum, the DCB method for parameter configuration that various embodiments of the present invention provide, can automatically make needs the DCB of identical configuration parameter to reach consistent configuration at all devices in the data center, need not keeper's manual configuration, improved the allocative efficiency of DCB parameter, be conducive to the rapid build at uniform data center, and solved and configure the inconsistent data transmission fault that causes.
The structural representation of the network equipment that Fig. 4 provides for one embodiment of the invention.As shown in Figure 4, the network equipment of the present embodiment comprises: receiver module 41, determination module 42 and local configuration module 43.
Wherein, receiver module 41 is used for receiving the parameter configuration message that other network equipments except the network equipment send, and described parameter configuration message comprises the DCB parameter of precedence information configuration consistent with needs.Determination module 42, be connected with receiver module 41, be used for according to the precedence information of local parameter configuration message and the precedence information in all parameter configuration messages that receive, the parameter configuration message of determining to carry assigned priority information is root device parameter configuration message.Local configuration module 43 is connected with determination module 42, is used for carrying out this locality configuration according to the consistent DCB parameter that configures of the needs of described root device parameter configuration message.
Each functional module of the present embodiment network equipment can be used for carrying out the flow process of DCB method for parameter configuration shown in Figure 1, and its specific works principle repeats no more, and sees the description of embodiment of the method for details.
The network equipment of the present embodiment, at the parameter configuration message that receives other equipment transmissions, the parameter configuration message of selecting to carry assigned priority information from local parameter configuration message and all parameter configuration messages of receiving according to the precedence information in the parameter configuration message is as root device parameter configuration message, and carries out this locality according to the DCB parameter in the root device parameter configuration message and configure.All devices in data center all selects the parameter configuration message of assigned priority information as the root device configuration message, and after carrying out this locality configuration according to identical root device parameter configuration message, need the DCB parameter of identical configuration will realize consistent configuration on all devices, whole process does not need keeper's manual configuration, realize the automatic configuration of DCB parameter in the data center, improved the allocative efficiency of DCB parameter.
The structural representation of the network equipment that Fig. 5 provides for another embodiment of the present invention.The present embodiment is based on realization embodiment illustrated in fig. 4, and as shown in Figure 5, the network equipment of the present embodiment also comprises: deletion package module 51.
The network equipment of the present embodiment can also comprise: boot configuration module 52 is connected with determination module 42.Concrete, when the network equipment of the present embodiment is edge access equipment in the data center, can carry out the DCB parameter configuration according to the terminal server that the DCB Leading of parameters of the consistent configuration of the needs in the root device parameter configuration message be connected with this network equipment by boot configuration module 52.
Further, the network equipment of the present embodiment also comprises: recover package module 53.
Recover package module 53, be connected with local configuration module 43, be used for arriving preset configuration during the entry-into-force time in this locality configuration of carrying out according to the consistent DCB parameter that configures of the needs of root device parameter configuration message, be the default configuration of the network equipment with local configuration restore, and the DCB parameter that default configuration is corresponding is encapsulated in the local parameter configuration message.
Further, the network equipment of the present embodiment also comprises: sending module 54.Sending module 54 is connected with deletion package module 51, recovery package module 53 and the network equipment of being connected, and is used for according to the default transmission cycle, to other network equipment broadcasting local parameter configuration messages.Wherein, the local parameter configuration message that sending module 53 sends can be generated by the encapsulation of DCB parameter corresponding to local default configuration, also can be that the DCB parameter encapsulation by the consistent configuration of the needs in the root device parameter configuration message generates.
Above-mentioned each functional module can be used for carrying out the corresponding flow process in the DCB method for parameter configuration shown in Figure 2, and its specific works principle repeats no more, and sees the description of embodiment of the method for details.
In the present embodiment, the precedence information in the parameter configuration message can comprise: prewired priority facility and medium access control MAC Address.
Based on above-mentioned, the MAC Address parameter configuration packet loss identical with the MAC Address of the network equipment of receiver module 41 concrete parameter configuration message medium priority information for receiving, and only receive the MAC Address parameter configuration message not identical with the MAC Address of the network equipment.
Based on above-mentioned, a kind of implementation structure of determination module 42 comprises: chooser module 421, first is determined submodule 422 and second definite submodule 423.
Concrete, chooser module 421 is connected with receiver module 41, is used for selecting the highest parameter configuration message of priority facility from local parameter configuration message and all parameter configuration messages that receive.First determines submodule 422, be connected with chooser module 421, the highest parameter configuration message of priority facility that is used for selecting in chooser module 421 exists when a plurality of, according to the MAC Address in the precedence information, from the highest parameter configuration message of a plurality of priority facilities, determine root device parameter configuration message.Second determines submodule 423, is connected with chooser module 421, and when unique for the highest parameter configuration message of the priority facility of selecting in chooser module 421, the parameter configuration message that priority facility is the highest is as root device parameter configuration message.
Further, first determines that submodule 422 specifically is used for from the highest parameter configuration message of a plurality of priority facilities, and the MAC Address minimum in the selection precedence information or maximum parameter configuration message are as root device parameter configuration message.
Above-mentioned functions submodule or functional unit can be used for the method flow under the structure shown in the execution graph 3A, and its specific works principle repeats no more, and sees the description of embodiment of the method for details.
The network equipment of the present embodiment, at the parameter configuration message that receives other equipment transmissions, from local parameter configuration message and all parameter configuration messages of receiving, select root device parameter configuration message according to the precedence information in the parameter configuration message, and carry out this locality according to the DCB parameter in the root device parameter configuration message and configure.Adopt the data center of the network equipment realization of the present embodiment, all devices wherein all can be selected identical root device parameter configuration message, and after can carrying out according to identical root device parameter configuration message this locality configuration, need the DCB parameter of identical configuration will realize consistent configuration on all devices, whole process does not need keeper's manual configuration, realize the automatic configuration of DCB parameter in the data center, improved the allocative efficiency of DCB parameter.
One embodiment of the invention provides a kind of DCB parameter configuring system, and this system comprises: the network equipment that a plurality of the above embodiment of the present invention provide.Structure about the network equipment can be referring to Fig. 4 or embodiment illustrated in fig. 5, and its specific works principle can referring to the description in Fig. 1, Fig. 2 or Fig. 3 A illustrated embodiment, not repeat them here.For example: the system of the present embodiment can be data center, and the network equipment can be the equipment in the data center.
Further, when the network equipment be that (for example: during data center) edge access layer equipment, the system of the present embodiment can also comprise the terminal server that is connected with the network equipment in system.
The system of the present embodiment is owing to comprising the network equipment that the embodiment of the invention provides, it can carry out the DCB parameter configuration flow process that the embodiment of the invention provides, can make equally needs the DCB of identical configuration parameter to realize consistent configuration on all devices in the whole system, and do not need keeper's manual configuration, realize the automatic configuration of DCB parameter, improved the allocative efficiency of DCB parameter.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a data center bridging DCB method for parameter configuration is characterized in that, comprising:
The first equipment receives the parameter configuration message that other equipment except described the first equipment send, and described parameter configuration message comprises the DCB parameter of precedence information configuration consistent with needs;
Described the first equipment is according to the precedence information in the precedence information in the local parameter configuration message and all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is root device parameter configuration message;
Described the first equipment carries out this locality configuration according to the DCB parameter of the consistent configuration of the needs in the described root device parameter configuration message.
2. DCB method for parameter configuration according to claim 1, it is characterized in that, described the first equipment is according to the precedence information in the precedence information in the local parameter configuration message and all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is also to comprise after the root device parameter configuration message:
Described the first equipment is with other parameter configuration packet loss except described root device parameter configuration message, and the DCB parameter that the needs in the described root device parameter configuration message are unanimously configured is encapsulated in the local parameter configuration message.
3. DCB method for parameter configuration according to claim 1, it is characterized in that, described the first equipment is according to the precedence information in the precedence information in the local parameter configuration message and all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is also to comprise after the root device parameter configuration message:
When described the first equipment was edge access equipment, described the first equipment carried out the DCB parameter configuration according to the DCB Leading of parameters of the consistent configuration of the needs in the described root device parameter configuration message and the terminal server of described the first equipment connection.
4. DCB method for parameter configuration according to claim 1 is characterized in that, also comprises:
When this locality configuration of carrying out according to the DCB parameter of the consistent configuration of the needs in the described root device parameter configuration message arrives preset configuration during the entry-into-force time, described the first equipment is the default configuration of described the first equipment with local configuration restore, and the DCB parameter that described default configuration is corresponding is encapsulated in the local parameter configuration message.
5. according to claim 2 or 4 described DCB method for parameter configuration, it is characterized in that, also comprise:
Described the first equipment sends to described other equipment according to the default transmission cycle with the local parameter configuration message.
6. according to claim 1 and 2 or 3 or 4 described DCB method for parameter configuration, it is characterized in that, described precedence information comprises: prewired priority facility and medium access control MAC Address;
The parameter configuration message that described the first equipment receives other equipment transmissions except described the first equipment comprises:
Described the first equipment is with the MAC Address parameter configuration packet loss identical with the MAC Address of described the first equipment in the parameter configuration message medium priority information that receives.
7. DCB method for parameter configuration according to claim 6, it is characterized in that, described the first equipment is according to the precedence information in the precedence information in the local parameter configuration message and all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is that root device parameter configuration message comprises:
Described the first equipment is selected the highest parameter configuration message of priority facility from local parameter configuration message and all parameter configuration messages that receive;
When the highest parameter configuration message of described priority facility exists when a plurality of, described the first equipment is determined described root device parameter configuration message according to the MAC Address in the precedence information from the highest parameter configuration message of a plurality of described priority facilities;
When the highest parameter configuration message of described priority facility was unique, described the first equipment parameter configuration message that described priority facility is the highest was as described root device parameter configuration message.
8. a network equipment is characterized in that, comprising:
Receiver module is used for receiving the parameter configuration message that other network equipments except the described network equipment send, and described parameter configuration message comprises the DCB parameter of precedence information configuration consistent with needs;
Determination module is used for according to the precedence information of local parameter configuration message and the precedence information in all parameter configuration messages that receive, and the parameter configuration message of determining to carry assigned priority information is root device parameter configuration message;
Local configuration module is used for carrying out this locality configuration according to the consistent DCB parameter that configures of the needs of described root device parameter configuration message.
9. the network equipment according to claim 8 is characterized in that, also comprises:
The deletion package module is used for other parameter configuration packet loss except described root device parameter configuration message, and the DCB parameter of the consistent configuration of the needs in the described root device parameter configuration message is encapsulated in the local parameter configuration message.
10. the network equipment according to claim 8 is characterized in that, also comprises:
The boot configuration module is used for when the described network equipment is edge access equipment, and the terminal server that is connected with the described network equipment according to the consistent DCB Leading of parameters that configures of the needs in the described root device parameter configuration message carries out the DCB parameter configuration.
11. the network equipment according to claim 8 is characterized in that, also comprises:
Recover package module, be used for arriving preset configuration during the entry-into-force time in this locality configuration of carrying out according to the consistent DCB parameter that configures of the needs of described root device parameter configuration message, be the default configuration of the described network equipment with local configuration restore, and the DCB parameter that described default configuration is corresponding is encapsulated in the local parameter configuration message.
12. according to claim 9 or the 11 described network equipments, it is characterized in that, also comprise:
Sending module is used for according to the default transmission cycle local parameter configuration message being sent to described other network equipments.
13. according to claim 8 or 9 or the 10 or 11 described network equipments, it is characterized in that, described precedence information comprises: prewired priority facility and medium access control MAC Address;
The MAC Address parameter configuration packet loss identical with the MAC Address of the described network equipment of the concrete parameter configuration message medium priority information for receiving of described receiver module.
14. the network equipment according to claim 13 is characterized in that, described determination module comprises:
The chooser module is used for selecting the highest parameter configuration message of priority facility from local parameter configuration message and all parameter configuration messages that receive;
First determines submodule, be used for existing when a plurality of at the highest parameter configuration message of described priority facility, according to the MAC Address in the precedence information, from the highest parameter configuration message of a plurality of described priority facilities, determine described root device parameter configuration message;
Second determines submodule, is used for when the highest parameter configuration message of described priority facility is unique, and the parameter configuration message that described priority facility is the highest is as described root device parameter configuration message.
15. a data center bridging DCB parameter configuring system is characterized in that, comprises each described network equipment of claim 8-14 and the terminal server that is connected with the described network equipment.
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| CN103580884B (en) * | 2012-07-19 | 2018-08-28 | 中兴通讯股份有限公司 | Method, system, sending ending equipment and the receiving device of relaying configuration |
| CN104009943B (en) * | 2013-02-21 | 2017-06-20 | 中兴通讯股份有限公司 | LLDP message transmitting methods and DCB equipment |
| CN104009937B (en) | 2013-02-22 | 2018-03-02 | 中兴通讯股份有限公司 | A kind of enhanced transmission selection standard configuration information transmission method and device |
| CN103312605B (en) * | 2013-05-29 | 2017-06-20 | 华为技术有限公司 | A kind of gateway device identity setting method and management gateway equipment |
| CN105141440B (en) * | 2015-06-30 | 2019-03-12 | 新华三技术有限公司 | A kind of dispositions method and device of data center's bridge capabilities exchange protocol parameter |
| CN106712991A (en) * | 2015-11-16 | 2017-05-24 | 上海易杵行智能科技有限公司 | Method and system of terminal device to automatically configure network essential data |
| CN107231316B (en) * | 2017-06-27 | 2020-03-13 | 中国联合网络通信集团有限公司 | Message transmission method and device |
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| CN102035722B (en) * | 2009-09-28 | 2014-03-19 | 中兴通讯股份有限公司 | Flow control method and device |
| EP2362578A1 (en) * | 2010-02-15 | 2011-08-31 | Broadcom Corporation | Method and system for managing network power policy and configuration of data center bridging |
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