CN103095508A - Business access method and edge device - Google Patents
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- CN103095508A CN103095508A CN2013100581857A CN201310058185A CN103095508A CN 103095508 A CN103095508 A CN 103095508A CN 2013100581857 A CN2013100581857 A CN 2013100581857A CN 201310058185 A CN201310058185 A CN 201310058185A CN 103095508 A CN103095508 A CN 103095508A
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Abstract
The invention provides a business access method and an edge device. In the business access method and the edge device, virtual retransmission channels are built between different electron devices (ED) in a same data center. Virtual retransmission channels are only built between EDs working as ENDS in an upper level and EDs working as ENDS in a lower level among EDs in different data centers. The fact that virtual retransmission channels are built between EDs in all data centers in the prior art is not needed, so that network management and business control are convenient.
Description
Technical field
The application relates to the network communications technology, particularly Operational Visit method and edge device.
Background technology
Ethernet virtual interconnected (EVI:Ethernet Virtualization Interconnection) technology provides two layers of interconnecting function flexibly for the website that disperses based on existing service provider network and enterprise network.The EVI solution is very simple, and is with low cost, only need to dispose at the website edge equipment of one or more support EVI functions, be called for short edge device (ED:Edge Device), and enterprise network and service provider network need not to do any change.
EVI is a kind of advanced person's MAC in IP technology, is used for realization based on the L2VPN technology of IP kernel heart net.EVI just safeguards route and forwarding information on the ED of website, and need not to change website inside and core network.The EVI overall network is comprised of core network (Core network), station network (Site network), crossover network (Overlay network), specifically as shown in Figure 1.
Wherein, station network is to be connected to by one or many ED the double layer network that has the separate traffic function in core network, mainly is comprised of main frame and ED, and ED provides two layers of function of exchange between website; Crossover network is the virtual network of setting up between website ED, provide two layers between website interconnected, announcement is connected to the MAC Address of the upper All hosts of ED and router, two layers that the interconnected formation of a plurality of websites is larger forward the territory; Core network is mainly by the carrying of IP routing device, for network interconnected between station network is provided.
At present, set up between the ED of all station networks in the EVI overall network and entirely connect as the vlink in Fig. 1, carry out intercommunication even also must set up full the connection between all websites of identical services, like this, increase along with website quantity, connection in the EVI network is progression and increases, and is unfavorable for management and Service control.
Summary of the invention
The application provides Operational Visit method and edge device, to realize that stratification is carried out at the datumization center to be distinguished, and facilitates network management and Service control.
The technical scheme that the application provides comprises:
A kind of Operational Visit method that is applied in the virtual interconnected EVI networking of Ethernet, the method is applied to the edge device ED in the EVI networking, and the method comprises:
Find the described ED of client ENDC as neighbours, the neighbours' discovery server ENDS that is in same level and same group with this ENDC to this locality configuration initiates the registration request message, from described ENDS know registered to this ENDS other each and this ENDC be in the ENDC of same level and same group, set up respectively virtual forwarding channel with described ENDS and this each ENDC that obtains, carry out Operational Visit with the virtual forwarding channel by this foundation;
Described ED as ENDS, receive with this ENDS and be in the registration request message that the ENDC of same level and same group initiates, with registered to this ENDS other each and the ENDC of this initiation registration request message ENDC that is in same level and same group inform ENDC to this initiation registration request message; And, when having configured the ENDS of last layer level in this locality, initiate the registration request message with the information of the ENDS that obtains the last layer level to the ENDS of last layer level, utilize the ENDS information of this last layer level of obtaining and the ENDS of this last layer level to set up virtual forwarding channel, carry out Operational Visit with the virtual forwarding channel by this foundation; And the ENDS that receives next level initiate the registration request message time, the information notification of this ENDS is initiated the ENDS of next level of registration request message to this.
A kind of edge device ED that is applied in the virtual interconnected EVI networking of Ethernet, described ED finds client ENDC as neighbours, comprising:
Registering unit is used for initiating the registration request message to the neighbours' discovery server ENDS that is in same level and same group with this ED of this locality configuration;
Acquiring unit, be used for from described ED know registered to this ENDS other each and this ED be in the ENDC of same level and same group;
The Path Setup unit is used for each ENDC that ENDS and described acquiring unit with same level obtain, sets up virtual forwarding channel respectively;
The exchanging visit unit is used for virtual forwarding channel by this foundation and this each ENDC and described ENDS and exchanges visits.
A kind of edge device ED that is applied in the virtual interconnected EVI networking of Ethernet, described ED comprises as neighbours' discovery server ENDS:
The registration receiving element, be used for to receive with this ED and be in the registration request message that the ENDC of same level and same group initiates, with registered to this ED other each and the ENDC of this initiation registration request message ENDC that is in same level and same group inform ENDC to this initiation registration request message; And when receiving the registration request message that the ENDS in next level initiates, the information notification of this ED is initiated the ENDS of next level of registration request message to this;
The registration request unit is when being used for having configured the ENDS of last layer level in this locality, to the ENDS initiation registration request message of last layer level;
The Path Setup unit for the information of the ENDS that obtains the last layer level, utilizes the ENDS information of this last layer level of obtaining and the ENDS of this last layer level to set up virtual forwarding channel;
The exchanging visit unit, be used for by and the ENDS of last layer level between the virtual forwarding channel set up and the ENDS of this last layer level exchange visits.
As can be seen from the above technical solutions, in the present invention, set up virtual forwarding channel between the ED of same data center, set up virtual forwarding channel and only have between the ED at different pieces of information center between the ED that serves as ENDS in the ED that serves as ENDS in the last layer level and next level, need not to set up virtual forwarding channel as prior art between the ED of all data centers, facilitate network management and Service control.
Description of drawings
Fig. 1 is EVI networking schematic diagram;
Fig. 2 is for being applied to EVI networking schematic diagram of the present invention;
The method flow diagram that Fig. 3 provides for the embodiment of the present invention;
ISIS neighbours' Establishing process figure that Fig. 4 provides for the embodiment of the present invention;
The MAC address learning flow chart that Fig. 5 provides for the embodiment of the present invention;
The business exchanging visit networking schematic diagram that Fig. 6 provides for the embodiment of the present invention;
Another business exchanging visit networking schematic diagram that Fig. 7 provides for the embodiment of the present invention;
The ED structural representation that Fig. 8 provides for the embodiment of the present invention;
Another structural representation of ED that Fig. 9 provides for the embodiment of the present invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
In the present invention, for convenience of network management and Service control, the data center in the EVI networking is carried out stratification distinguish, wherein, this stratification is distinguished and mainly is based on the purpose that facilitates network management.As shown in Figure 2, in the EVI networking is used, there are following three data centers: data center of the whole province, A city data center, B city data center, based on this, the present invention can carry out stratification with these three data centers and distinguish, such as, data center of the whole province is the first level, and A city data center, B city data center is subordinate's level of the first level, such as being the second level, perhaps A city data center is the second level, and B city data center is subordinate's level of the second level, is the 3rd level.
Can find out, in the present invention, it might be in same level the different pieces of information center, based on this, for ease of distinguishing, the present invention has also carried out the differentiation of group for each data center, wherein, same data center is in same group, and the different pieces of information center is in the distinct group group.So, in above-mentioned Fig. 2, even A city data center, B city data center all is in same level, such as the second level, but because its residing group is different, also easily distinguish.
Afterwards, the ED for each data center is configured deployment:
At first, level sign, group identification and the site identity of its IP of configuration address on each ED in each data center, affiliated data center;
Secondly, only specify an ED to serve as neighbours' discovery server (ENDS) in each ED in each data center, remaining finds client (ENDC) as neighbours.
Afterwards, serve as in each data center on the ED of ENDC and configure ENDS, and the ENDS that serves as configuration last layer level on the ED of ENDS in data center.
Still with shown in Figure 2, if being the first level (identifying by Level-1), affiliated group, data center of the whole province is (identifying by Group1), A city data center, B city data center is in same level, such as the subordinate's level (identifying by Level-2) that is Level-1, group under A city data center is (identifying by Group2), group under B city data center is (identifying by Group3),
At first each ED of data center of the whole province disposes following configuration: IP address, Level-1, Group1;
At first each ED of A city data center disposes following configuration: IP address, Level-2, Group2;
At first each ED of B city data center disposes following configuration: IP address, Level-2, Group3;
Afterwards, be designated as ENDS or ENDC according to ED in each data center, the ED of each data center increases again following configuration:
Data center of the whole province:
■ ED-1-1 is ENDS;
■ ED-1-2, ED-1-3 are ENDC, and configuration ENDS is ED-1-1;
A city data center:
■ ED-21-1 is ENDS, and the ENDS of its configuration last layer level is ED-1-1;
■ ED-21-2, ED-21-3 are ENDC, and configuration ENDS is ED-21-1;
B city data center:
■ ED-22-1 is ENDS, and the ENDS of its configuration last layer level is ED-1-1;
■ ED-22-2, ED-22-3 are ENDC, and the ENDS of configuration is ED-22-1.
Based on above configuration, the present invention is directed to the ED of each data center, it can carry out flow process shown in Figure 3:
Referring to Fig. 3, the method flow diagram that Fig. 3 provides for the embodiment of the present invention.As shown in Figure 3, this flow process can comprise:
Still take Fig. 2 as example, based on step 301,,
ED-1-2, ED-1-3 initiate the registration request message to ED-1-1 respectively;
ED-21-2, ED-21-3 initiate the registration request message to ED-21-1;
ED-22-2, ED-22-3 initiate the registration request message to ED-22-1.
In the present invention, the residing site identity of this ENDC, level sign and group identification have been carried at least to being in this ENDC the registration request message that the ENDS of same level and same group initiates.Wherein, why logon message carries site identity, level sign and group identification, and purpose is based on fault-tolerant consideration, and hereinafter step 302 is described.
Still take Fig. 2 as example, based on step 301,,
ED-1-1 sends response message to ED-1-2, ED-1-3, carries ED-1-1, ED-1-2, ED-1-3 information;
ED-21-1 sends response message to ED-21-2, ED-21-3, carries ED-21-1, ED-21-2, ED-21-3 information;
ED-22-1 sends response message to ED-22-2, ED-22-3, carries ED-22-1, ED-22-2, ED-22-3 information.
Preferably, in the present invention, the registration request message of initiating based on ENDC in above-described step 301 carries the residing site identity of this ENDC, level sign and group identification at least, in this step 302, ENDS sends response message to the ENDC in this level this group and specifically can comprise the following steps:
Whether unanimously with the residing site identity of this ENDS, level sign and group identification successively identify site identity, level sign and group identification that this registration request message carries,
If, the ENDC of this initiation registration request message is registered to this ENDS, and will before registered and this ENDS information exchange of being in other each ENDC of same level and same group cross and be carried at the ENDC that informs in response message to this initiation registration request message.
If not, do not send response message.
By this step, can guarantee that each ENDS sends registered ENDC information to this ENDS in all this levels this groups to the ENDC in this level this group.
Take Fig. 2 as example, based on step 303:
ED-1-2 and ED-1-1, ED-1-2 and ED-1-3, ED-1-3 and ED-1-1 set up virtual forwarding channel;
ED-21-2 and ED-21-1, ED-21-2 and ED-21-3, ED-21-3 and ED-21-1 set up virtual forwarding channel;
ED-22-2 and ED-22-1, ED-22-2 and ED-22-3, ED-22-3 and ED-22-1 set up virtual forwarding channel.
Take Fig. 2 as example, based on step 304,,
ED-21-1 initiates registration to ED-1-1;
ED-22-1 initiates registration to ED-1-1.
Similar with the registration request message that step 301 is initiated, the registration request message that in this step 304, ENDS initiates also carries the residing site identity of this ENDS, level sign and group identification at least.The registration request message that ENDS initiates carry at least the residing site identity of this ENDS, level sign and group identification, purpose also is based on fault-tolerant angle to be considered, hereinafter step 305 is described in detail.
Take Fig. 2 as example, based on step 305,,
ED-1-1 sends response message to ED-21-1, carries ED-1-1 information;
ED-1-1 sends response message to ED-22-1, carries ED-1-1 information.
The registration request message that the ENDS that describes based on step 304 initiates has carried the residing site identity of this ENDS, level sign and group identification at least, in this step 305, the ENDS of the downward level of the ENDS of last layer level sends response message and specifically can comprise the following steps:
Whether unanimously with the residing site identity of this ENDS, level sign and group identification successively identify site identity, level sign and group identification that this registration request message carries,
If inconsistent, and find that level that this registration request message carries is designated subordinate's level sign of this ENDS level of living in, the information notification of this ENDS is initiated the ENDS of registration request message to this,
If consistent, do not send response message.
By this step, can guarantee that the interior ENDS of the downward level of ENDS of last layer level sends the information of this ENDS.
Step 306 after the ENDS in each level receives response message, is set up virtual forwarding channel with the ENDS of last layer level.
Take Fig. 2 as example, based on step 306,,
ED-21-1 and ED-1-1 set up virtual forwarding channel;
ED-22-1 and ED-1-1 set up virtual forwarding channel.
So, by above-mentioned steps 301 to step 306, can realize setting up virtual forwarding channel between the ED of same data center, set up virtual forwarding channel and only have between the ED at different pieces of information center between the ED that serves as ENDS in the ED that serves as ENDS in the last layer level and next level, need not to set up virtual forwarding channel as prior art between the ED of all data centers, facilitate network management and Service control.
Afterwards, the arbitrary ED in the EVI networking just carries out ISIS neighbours' foundation and the study of MAC Address with the opposite end ED that has set up each other virtual forwarding channel, and the below describes in detail:
ISIS neighbours set up:
ED-1-2 and ED-1-1 in data center of the whole province shown in Figure 2 set up ISIS neighbours as example, and the principle of setting up ISIS neighbours between other ED is similar, and as shown in Figure 4, these ISIS neighbours set up mainly and comprise the following steps:
Step 404 after ED-1-1 receives protocol hello message after described encapsulation, is carried out decapsulation to the protocol hello message of this reception, on deliver to the ISIS process of control plane, with complete and ED-1-2 between ISIS neighbours set up.
So far, complete flow process shown in Figure 4.
Can realize carrying out between two ED that set up virtual forwarding channel ISIS neighbours' foundation by flow process shown in Figure 4.The below is described MAC address learning:
In the present invention, different as the MAC address learning that the ED of ENDC and ED as ENDS carry out, the below is described respectively:
The MAC address learning that carries out as the ED of ENDC mainly comprises:
When local port is learnt new MAC Address, this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in other ENDC and the ENDS of same level;
When receiving the new MAC Address of the ENDS of same level or other ENDC announcement, foundation is for the MAC forwarding-table item of this new MAC Address, and described MAC forwarding-table item comprises at least: new MAC Address and the upper ENDS of this new MAC Address of announcement or the virtual forwarding channel interface of ENDS of connecting of this ED.
The MAC address learning that carries out as the ED of ENDS mainly comprises:
When local port is learnt new MAC Address, this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcement is given with this ED and set up ENDS in the last layer level of ISIS neighborhood and the ENDS in next level;
When receiving the new MAC Address of ENDC announcement of same level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDC of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up ENDS in ENDS and next level in the last layer level of ISIS neighborhood with this ED;
When receiving the new MAC Address of the ENDS announcement in the last layer level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in next level of ISIS neighborhood with this ED;
When receiving the new MAC Address of the ENDS announcement in next level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in the last layer level of ISIS neighborhood with this ED.
Based on top description, Fig. 5 shows the idiographic flow of the ENDS learning MAC address that the embodiment of the present invention provides.As shown in Figure 5, this flow process can comprise the following steps:
In the above description, step 503 is arranged side by side to step 505, there is no the regular time sequencing.
So, can complete the study of MAC Address by flow process shown in Figure 5.
After completing MAC address learning, just can utilize the MAC Address of learning to carry out business between the ED in the EVI networking and exchange visits:
Business is exchanged visits:
In the present invention, the business that business is exchanged visits between the ED that mainly is divided into same level is exchanged visits, and perhaps the business between various level ED is exchanged visits, and the below is described respectively:
The business of same level is exchanged visits:
Fig. 6 shows ED-1-3 and the exchanging visit of the business between ED-1-1 of same level and uses.As shown in Figure 6, in step 1, after ED-1-3 receives Ether frame, carry out source MAC study, and search the local mac list item according to target MAC (Media Access Control) address, but the outgoing interface that obtain this moment is not local physical interface, but virtual forwarding channel interface (being equivalent to the EVI tunnel interface), this means that this target MAC (Media Access Control) address is that the opposite end ED of virtual forwarding channel is the MAC Address that ED-1-1 passes through the issue of ISIS Routing Protocol, execution in step 2.In step 2, ED-1-3 carries out EVI encapsulation with original Ether frame: the source IP address in outer IP head is the IP address of this EVI tunnel interface of carrying of ED-1-3, and purpose IP address is that the opposite end ED that this EVI tunnel connects is the IP address of ED-1-1.In step 3, the Ether frame after ED-1-3 will encapsulate is carried in message from the EVI tunnel interface of carrying and sends, and finally arriving the opposite end ED that this EVI tunnel connects is ED-1-1.In step 4, ED-1-1 carries out the EVI decapsulation to the message that receives.In step 5, the Ether frame of ED-1-1 after according to decapsulation carries out target MAC (Media Access Control) address and searches that to obtain outgoing interface be local physical interface in this locality, send this Ether frame from local physical interface, finally arrives destination host.
Above business to same level is exchanged visits and is described, and the below exchanges visits to the various level business and is described:
The various level business is exchanged visits:
The business exchanging visit that Fig. 7 shows between ED-21-3 and ED-1-1 is used.in Fig. 7, the residing level of ED-1-1 is the last layer level of ED-21-3, ED-21-3 serves as ENDC in its residing level, and ED-21-1 and ED-21-3 are in same level and same group, and, ED-21-1 serves as ENDS in this level, ED-21-3 serves as ENDC in this level, as shown in Figure 7, in step 1, after ED-21-3 receives Ether frame, carry out source MAC study, search the local mac list item according to target MAC (Media Access Control) address, but the outgoing interface that obtain this moment is not local physical interface, but be connected to the EVI tunnel interface of ED-21-1, execution in step 2.In step 2, ED-21-3 carries out EVI encapsulation with original Ether frame: the source IP address in outer IP head is the IP address of this EVI tunnel interface of carrying of ED-21-3, and purpose IP address is that the opposite end ED that this EVI tunnel connects is the IP address of ED-21-1.In step 3, the Ether frame after ED-21-3 will encapsulate is carried in message from the EVI tunnel interface of carrying and sends, and finally arriving the opposite end ED that this EVI tunnel connects is ED-21-1.In step 4, ED-21-1 carries out the EVI decapsulation to the message that receives, Ether frame after decapsulation is carried out source MAC study, and search the local mac list item according to target MAC (Media Access Control) address, the outgoing interface that obtain this moment is not local physical interface, but the EVI tunnel interface, and adjacency information is that the strange land website is issued the ED-1-1 of this MAC Address by the ISIS Routing Protocol.In step 5, original Ether frame after ED-21-1 will encapsulate carries out EVI encapsulation: the source IP address in outer IP head is the IP address of this EVI tunnel interface of carrying of ED-21-1, and purpose IP address is that the opposite end ED that this EVI tunnel connects is the IP address of ED-1-1.In step 6, the Ether frame after ED-21-1 will encapsulate is carried in message from the EVI tunnel interface of carrying and sends, and finally arriving the opposite end ED that this EVI tunnel connects is ED-1-1.In step 7, ED-1-1 carries out the EVI decapsulation to the message that receives.In step 8, the Ether frame of ED-1-1 after according to decapsulation carries out target MAC (Media Access Control) address and searches that to obtain outgoing interface be local physical interface in this locality, send this Ether frame from local physical interface, finally arrives destination host.
The above various level business is exchanged visits is described.
The below is described ED provided by the present invention:
ED in the present invention can serve as ENDC, also can serve as ENDS, but the structure when serving as ENDC with ENDS is different, and the below is described:
Referring to Fig. 8, the ED structural representation that Fig. 8 provides for the embodiment of the present invention, as one embodiment of the invention, described ED as shown in Figure 8, comprising as ENDC:
Registering unit is used for initiating the registration request message to the neighbours' discovery server ENDS that is in same level and same group with this ED of this locality configuration;
Acquiring unit, be used for from described ED know registered to this ENDS other each and this ED be in the ENDC of same level and same group;
The Path Setup unit is used for each ENDC that ENDS and described acquiring unit with same level obtain, sets up virtual forwarding channel respectively;
The exchanging visit unit is used for virtual forwarding channel by this foundation and this each ENDC and described ENDS and exchanges visits.
In the present invention, the registration request message that described registering unit is initiated to ENDS has carried the residing site identity of described ED, level sign and group identification at least.
In the present invention, as shown in Figure 8, described exchanging visit unit comprises:
The ISIS neighborhood is set up the unit, be used for setting up the ISIS neighborhood by virtual forwarding channel and this other ENDC that other ENDC with same level set up, and the virtual forwarding channel and this ENDS that set up by the ENDS with same level set up the ISIS neighborhood;
The MAC Address unit is used for when local port is learnt new MAC Address, and this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in other ENDC and the ENDS of same level; And when receiving the new MAC Address of the ENDS of same level or other ENDC announcement, foundation is for the MAC forwarding-table item of this new MAC Address, and described MAC forwarding-table item comprises at least: new MAC Address and the upper ENDS of this new MAC Address of announcement or the virtual forwarding channel interface of ENDS of connecting of this ED;
Data processing unit is used for finding the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up when receiving Frame, utilizes the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
So far, completing ED structure shown in Figure 8 describes.
As an alternative embodiment of the invention, the present invention also provides ED to serve as the structure of ENDS.Referring to Fig. 9, another structural representation of ED that Fig. 9 provides for the embodiment of the present invention, described ED as shown in Figure 9, can comprise as ENDS:
The registration receiving element, be used for to receive with this ED and be in the registration request message that the ENDC of same level and same group initiates, with registered to this ED other each and the ENDC of this initiation registration request message ENDC that is in same level and same group inform ENDC to this initiation registration request message; And when receiving the registration request message that the ENDS in next level initiates, the information notification of this ED is initiated the ENDS of next level of registration request message to this;
The registration request unit is when being used for having configured the ENDS of last layer level in this locality, to the ENDS initiation registration request message of last layer level;
The Path Setup unit for the information of the ENDS that obtains the last layer level, utilizes the ENDS information of this last layer level of obtaining and the ENDS of this last layer level to set up virtual forwarding channel;
The exchanging visit unit, be used for by and the ENDS of last layer level between the virtual forwarding channel set up and the ENDS of this last layer level exchange visits.
In the present invention, when the site identity that described registration receiving element carries at the registration request message, level sign and group identification be whether consistent with the residing site identity of this ED, level sign and group identification successively, registered other each ENDC that are in same level and same group with this ED to this ED are informed ENDC to this initiation registration request message.
In the present invention, described registration request unit has carried the residing site identity of this ED, level sign and group identification at least to the registration request message that the ENDS of last layer level initiates;
Described registration receiving element determines that site identity, level sign and group identification and the residing site identity of this ENDS, level sign and group identification that the registration request message of the ENDS initiation in next level carries are all inconsistent, when the level of carrying at this registration request message is designated the subordinate level sign of this ENDS level of living in, the information notification of this ED is initiated the ENDS of registration request message to this.
In the present invention, as shown in Figure 9, described exchanging visit unit comprises:
The ISIS neighborhood is set up the unit, be used for setting up the ISIS neighborhood by virtual forwarding channel and this ENDC that the arbitrary ENDC with same level sets up, set up the ISIS neighborhood by the virtual forwarding channel of setting up with the ENDS of next level with the ENDS of this next level, by setting up the ISIS neighborhood with the virtual forwarding channel of the ENDS foundation of last layer level and the ENDS of this last layer level;
The MAC Address unit, be used for when local port is learnt new MAC Address, this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcement is given with this ED and set up ENDS in the last layer level of ISIS neighborhood and the ENDS in next level
And, when receiving the new MAC Address of ENDC announcement of same level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDC of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up ENDS in ENDS and next level in the last layer level of ISIS neighborhood with this ED;
And, when receiving the new MAC Address of the ENDS announcement in the last layer level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in next level of ISIS neighborhood with this ED;
And, when receiving the new MAC Address of the ENDS announcement in next level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in the last layer level of ISIS neighborhood with this ED;
Data processing unit is used for finding the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up when receiving Frame, utilizes the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
So far, completing ED structure shown in Figure 9 describes.
As can be seen from the above technical solutions, in the present invention, set up virtual forwarding channel between the ED of same data center, set up virtual forwarding channel and only have between the ED at different pieces of information center between the ED that serves as ENDS in the ED that serves as ENDS in the last layer level and next level, need not to set up virtual forwarding channel as prior art between the ED of all data centers, facilitate network management and Service control.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (11)
1. Operational Visit method that is applied in the virtual interconnected EVI networking of Ethernet, the method is applied to the edge device ED in the EVI networking, it is characterized in that, and the method comprises:
Find the described ED of client ENDC as neighbours, the neighbours' discovery server ENDS that is in same level and same group with this ENDC to this locality configuration initiates the registration request message, from described ENDS know registered to this ENDS other each and this ENDC be in the ENDC of same level and same group, set up respectively virtual forwarding channel with described ENDS and this each ENDC that obtains, carry out Operational Visit with the virtual forwarding channel by this foundation;
Described ED as ENDS, receive with this ENDS and be in the registration request message that the ENDC of same level and same group initiates, with registered to this ENDS other each and the ENDC of this initiation registration request message ENDC that is in same level and same group inform ENDC to this initiation registration request message; And, when having configured the ENDS of last layer level in this locality, initiate the registration request message with the information of the ENDS that obtains the last layer level to the ENDS of last layer level, utilize the ENDS information of this last layer level of obtaining and the ENDS of this last layer level to set up virtual forwarding channel, carry out Operational Visit with the virtual forwarding channel by this foundation; And the ENDS that receives next level initiate the registration request message time, the information notification of this ENDS is initiated the ENDS of next level of registration request message to this.
2. method according to claim 1, is characterized in that, the registration request message of initiating to ENDS as the described ED of ENDC carries the residing site identity of this ENDC, level sign and group identification at least;
Determine that as the described ED of ENDS site identity, level sign and group identification that registration request message that ENDC initiates carries identify with the residing site identity of this ENDS, level and group identification is consistent,
Registered other each ENDC that are in same level and same group with this ENDS to this ENDS are informed the ENDC to this initiation registration request message.
3. method according to claim 1, is characterized in that, as the described ED of ENDS, the registration request message of initiating as the ED of ENDS in the last layer level carries the residing site identity of this ENDS, level sign and group identification at least;
Determine in next level that as the described ED of ENDS site identity, level sign and group identification that registration request message that the ED as ENDS initiates carries identify with the residing site identity of this ENDS, level and group identification is all inconsistent,
When the level of carrying at this registration request message is designated the subordinate level sign of this ENDS level of living in, the information notification of this ENDS is initiated the ENDS of registration request message to this.
4. method according to claim 1, is characterized in that, carries out Operational Visit as the described ED of ENDC by the virtual forwarding channel of setting up and comprise:
Virtual forwarding channel and this other ENDC of setting up by other ENDC with same level set up the ISIS neighborhood, and the virtual forwarding channel and this ENDS that set up by the ENDS with same level set up the ISIS neighborhood;
When local port is learnt new MAC Address, this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in other ENDC and the ENDS of same level;
When receiving the new MAC Address of the ENDS of same level or other ENDC announcement, foundation is for the MAC forwarding-table item of this new MAC Address, and described MAC forwarding-table item comprises at least: new MAC Address and the upper ENDS of this new MAC Address of announcement or the virtual forwarding channel interface of ENDS of connecting of this ED;
When receiving Frame, find the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up, utilize the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
5. method according to claim 1, is characterized in that, carries out Operational Visit as the described ED of ENDS by the virtual forwarding channel of setting up and comprise:
The virtual forwarding channel and this ENDC that set up by the arbitrary ENDC with same level set up the ISIS neighborhood, set up the ISIS neighborhood by the virtual forwarding channel of setting up with the ENDS of next level with the ENDS of this next level, by setting up the ISIS neighborhood with the virtual forwarding channel of the ENDS foundation of last layer level and the ENDS of this last layer level;
When local port is learnt new MAC Address, this new MAC Address is announced to having set up the ENDC of the same level of ISIS neighborhood, the ENDS of last layer level and the ENDS in next level with this ED;
When receiving the new MAC Address of ENDC announcement of same level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDC of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up ENDS in ENDS and next level in the last layer level of ISIS neighborhood with this ED;
When receiving the new MAC Address of the ENDS announcement in the last layer level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in next level of ISIS neighborhood with this ED;
When receiving the new MAC Address of the ENDS announcement in next level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in the last layer level of ISIS neighborhood with this ED;
When receiving Frame, find the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up, utilize the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
6. an edge device ED who is applied in the virtual interconnected EVI networking of Ethernet, is characterized in that, described ED finds client ENDC as neighbours, comprising:
Registering unit is used for initiating the registration request message to the neighbours' discovery server ENDS that is in same level and same group with this ED of this locality configuration;
Acquiring unit, be used for from described ED know registered to this ENDS other each and this ED be in the ENDC of same level and same group;
The Path Setup unit is used for each ENDC that ENDS and described acquiring unit with same level obtain, sets up virtual forwarding channel respectively;
The exchanging visit unit is used for virtual forwarding channel by this foundation and this each ENDC and described ENDS and exchanges visits.
7. ED according to claim 6, is characterized in that, described exchanging visit unit comprises:
The ISIS neighborhood is set up the unit, be used for setting up the ISIS neighborhood by virtual forwarding channel and this other ENDC that other ENDC with same level set up, and the virtual forwarding channel and this ENDS that set up by the ENDS with same level set up the ISIS neighborhood;
The MAC Address unit is used for when local port is learnt new MAC Address, and this new MAC Address is announced to having set up the ISIS neighborhood with this ED and being in other ENDC and the ENDS of same level; And when receiving the new MAC Address of the ENDS of same level or other ENDC announcement, foundation is for the MAC forwarding-table item of this new MAC Address, and described MAC forwarding-table item comprises at least: new MAC Address and the upper ENDS of this new MAC Address of announcement or the virtual forwarding channel interface of ENDS of connecting of this ED;
Data processing unit is used for finding the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up when receiving Frame, utilizes the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
8. an edge device ED who is applied in the virtual interconnected EVI networking of Ethernet, is characterized in that, described ED comprises as neighbours' discovery server ENDS:
The registration receiving element, be used for to receive with this ED and be in the registration request message that the ENDC of same level and same group initiates, with registered to this ED other each and the ENDC of this initiation registration request message ENDC that is in same level and same group inform ENDC to this initiation registration request message; And when receiving the registration request message that the ENDS in next level initiates, the information notification of this ED is initiated the ENDS of next level of registration request message to this;
The registration request unit is when being used for having configured the ENDS of last layer level in this locality, to the ENDS initiation registration request message of last layer level;
The Path Setup unit for the information of the ENDS that obtains the last layer level, utilizes the ENDS information of this last layer level of obtaining and the ENDS of this last layer level to set up virtual forwarding channel;
The exchanging visit unit, be used for by and the ENDS of last layer level between the virtual forwarding channel set up and the ENDS of this last layer level exchange visits.
9. ED according to claim 8, it is characterized in that, when the site identity that described registration receiving element carries at the registration request message, level sign and group identification be whether consistent with the residing site identity of this ED, level sign and group identification successively, registered other each ENDC that are in same level and same group with this ED to this ED are informed ENDC to this initiation registration request message.
10. ED according to claim 8, is characterized in that, described registration request unit has carried the residing site identity of this ED, level sign and group identification at least to the registration request message that the ENDS of last layer level initiates;
Described registration receiving element determines that site identity, level sign and group identification and the residing site identity of this ENDS, level sign and group identification that the registration request message of the ENDS initiation in next level carries are all inconsistent, when the level of carrying at this registration request message is designated the subordinate level sign of this ENDS level of living in, the information notification of this ED is initiated the ENDS of registration request message to this.
11. ED according to claim 8 is characterized in that, described exchanging visit unit comprises:
The ISIS neighborhood is set up the unit, be used for setting up the ISIS neighborhood by virtual forwarding channel and this ENDC that the arbitrary ENDC with same level sets up, set up the ISIS neighborhood by the virtual forwarding channel of setting up with the ENDS of next level with the ENDS of this next level, by setting up the ISIS neighborhood with the virtual forwarding channel of the ENDS foundation of last layer level and the ENDS of this last layer level;
The MAC Address unit is used for when local port is learnt new MAC Address, this new MAC Address announced to having set up the ENDC of the same level of ISIS neighborhood, ENDS in the last layer level and the ENDS in next level with this ED,
And, when receiving the new MAC Address of ENDC announcement of same level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDC of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up ENDS in ENDS and next level in the last layer level of ISIS neighborhood with this ED;
And, when receiving the new MAC Address of the ENDS announcement in the last layer level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in next level of ISIS neighborhood with this ED;
And, when receiving the new MAC Address of the ENDS announcement in next level, foundation is for the MAC forwarding-table item of this new MAC Address, described MAC forwarding-table item comprises at least: the upper virtual forwarding channel interface that connects the ENDS of this new MAC Address of announcement of new MAC Address and this ED, and will this new MAC Address announce to having set up the ISIS neighborhood with this ED and being in the ENDC of same level and announcing to having set up ENDS in the last layer level of ISIS neighborhood with this ED;
Data processing unit is used for finding the MAC forwarding-table item of the target MAC (Media Access Control) address that comprises this Frame from the MAC forwarding-table item of setting up when receiving Frame, utilizes the outgoing interface in this MAC forwarding-table item that finds to forward this Frame.
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