CN104618524B - MAC address learning method and device - Google Patents
MAC address learning method and device Download PDFInfo
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- CN104618524B CN104618524B CN201510091442.6A CN201510091442A CN104618524B CN 104618524 B CN104618524 B CN 104618524B CN 201510091442 A CN201510091442 A CN 201510091442A CN 104618524 B CN104618524 B CN 104618524B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
Abstract
The present invention provides MAC address learning method and device, this method is applied to TRILL network, TRILL network includes at least two regions, the all areas that the RB equipment of convergence-level belongs at least two regions in TRILL network, the region that the RB equipment of Access Layer belongs at least two regions in TRILL network, the enabled ESADI of RB equipment in TRILL network, this method include：The RB equipment of Access Layer receives the message that local host is sent；The source MAC of the RB learning equipment messages of Access Layer, generates corresponding MAC address entries；Other RB equipment notice source MAC into the RB equipment affiliated areas of Access Layer, so that other RB learning equipments source MACs in region, generate corresponding MAC address entries.Therefore, the present invention can save the MAC Address space of the RB equipment of Access Layer, and the hardware resource for reducing the RB equipment of Access Layer expends.
Description
Technical field
The present invention relates to network communication technology field, more particularly to MAC address learning method and device.
Background technology
Transparent interconnection of lots of links interconnection (Transparent Interconnection of Lots of Links, TRILL) association
View is by being Intermediate System-to-Intermediate System (Intermediate System-to-Intermediate by three-layer routing technology
System, IS-IS) mentality of designing introduce double layer network, so as to by two layers simple, flexibility and three layers of stabilization, expand
Exhibition and high-performance organically blend, suitable for building the needs of large-scale double layer network.
In the prior art, TRILL network logically connects entirely, each routing bridge (Router in TRILL network
Bridge, RB) other RB TRILL routes are all preserved, and each RB can be that opposite end RB plant maintenances are corresponding
TRILL heads encapsulate or decapsulation table, so that this underground hangs the mutual access hung under main frame and opposite end RB between main frame.But
When RB quantity is more, then the hardware resource consuming to each RB is very big, moreover, each RB also needs to preserve the institute of whole network
There is hardware (Medium Access Control, MAC) address of main frame, then require that each RB there are enough MAC Address spaces
Preserve the MAC Address of the All hosts of whole network.Therefore, existing TRILL network consumes to the hardware resource of each RB equipment
Take very big, and the MAC Address space requirement to each RB is very high.
The content of the invention
The present invention provide MAC address learning method and device, with solve in the prior art existing TRILL network to each
The problem of hardware resource consuming of RB equipment is very big, and the MAC Address space requirement to each RB is very high.
First aspect according to embodiments of the present invention, there is provided a kind of MAC address learning method, methods described are applied to multichain
Road transparent interconnection TRILL network, the network include at least two regions, the routing bridge RB equipment of convergence-level in the network
The all areas belonged at least two region, the RB equipment of Access Layer belongs at least two region in the network
In a region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network, methods described includes：Access
The RB equipment of layer receives the message that local host is sent；The source MAC of message described in the RB learning equipments of the Access Layer, it is raw
Into corresponding MAC address entries；Other RB equipment of the RB equipment of the Access Layer into the RB equipment affiliated areas of the Access Layer
The source MAC is noticed, so that source MAC described in other RB learning equipments in the region, generates corresponding MAC table
.
Preferably, other RB equipment of the RB equipment of the Access Layer into the network send ESADI messages, described
ESADI messages carry address information, and the address information includes：The source MAC, the Access Layer RB equipment equipment
The regional number of mark and the RB equipment of the Access Layer, so that the regional number of itself and the regional number of the RB equipment of the Access Layer
The source MAC that the address information that ESADI messages described in identical RB learning equipments carry includes, and according to the access
The device identification of the RB equipment of layer and the source MAC generate corresponding MAC address entries.
Preferably, the MAC address learning method also includes：The RB equipment of the Access Layer receives other RB of Access Layer
Equipment sends ESADI messages, and the ESADI messages carry address information, and the address information includes MAC Address, sends and be somebody's turn to do
The regional number of the RB equipment of the Access Layer of the device identification and transmission of the RB equipment of the Access Layer of ESADI messages the ESADI messages；
If the regional number phase of the RB equipment of Access Layer of the RB equipment of the Access Layer regional number of itself with sending the ESADI messages
Together, then the MAC Address that the address information that the ESADI messages carry includes is learnt, and according to the access for sending the ESADI messages
The device identification of the RB equipment of layer and MAC Address generate corresponding MAC address entries.
Second aspect according to embodiments of the present invention, there is provided a kind of MAC address learning method, methods described are applied to multichain
Road transparent interconnection TRILL network, the network include at least two regions, the routing bridge RB equipment of convergence-level in the network
The all areas belonged at least two region, the RB equipment of Access Layer belongs at least two region in the network
In a region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network, methods described includes：Convergence
The RB equipment that the RB equipment of layer receives Access Layer sends ESADI messages, and the ESADI messages carry address information, the address
The regional number of RB equipment of the information including MAC Address, the device identification of the RB equipment of the Access Layer and the Access Layer；If institute
It is identical with the regional number of the RB equipment of the Access Layer to state the RB equipment of the convergence-level regional number of itself, then learns the ESADI
The MAC Address that the address information that message carries includes, and the device identification and MAC Address life of the RB equipment according to the Access Layer
Into corresponding MAC address entries.
The third aspect according to embodiments of the present invention, there is provided a kind of MAC address learning device, described device are applied to multichain
In the transparent interconnection TRILL network of road in the routing bridge RB equipment of Access Layer, the network includes at least two regions, the net
The all areas that the RB equipment of convergence-level belongs at least two region in network, the RB equipment category of Access Layer in the network
A region at least two region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network,
Described device includes：
First receiving unit, for receiving the message of local host transmission；
First unit, for learning the source MAC of the message, generate corresponding MAC address entries；
Notification unit, the source MAC is noticed for other RB equipment in the RB equipment affiliated areas to the Access Layer
Address, so that source MAC described in other RB learning equipments in the region, generates corresponding MAC address entries.
Preferably, other RB equipment that the notification unit is additionally operable into the network send ESADI messages, described
ESADI messages carry address information, and the address information includes：The source MAC, the Access Layer RB equipment equipment
The regional number of mark and the RB equipment of the Access Layer, so that the regional number of itself and the regional number of the RB equipment of the Access Layer
The source MAC that the address information that ESADI messages described in identical RB learning equipments carry includes, and according to the access
The device identification of the RB equipment of layer and the source MAC generate corresponding MAC address entries.
Preferably, the MAC address learning device also includes：
Second receiving unit, other RB equipment for receiving Access Layer send ESADI messages, and the ESADI messages are taken
Band address information, device identification of the address information including MAC Address, the RB equipment for the Access Layer for sending the ESADI messages
With send the ESADI messages Access Layer RB equipment regional number；
Second unit, if for the RB equipment of the Access Layer regional number of itself with sending the ESADI messages
The regional number of the RB equipment of Access Layer is identical, then learns the MAC Address that the address information that the ESADI messages carry includes, and
Corresponding MAC address entries are generated according to the device identification of the RB equipment for the Access Layer for sending the ESADI messages and MAC Address.
Fourth aspect according to embodiments of the present invention, there is provided a kind of MAC address learning device, described device are applied to multichain
In the transparent interconnection TRILL network of road in the routing bridge RB equipment of convergence-level, the network includes at least two regions, the net
The all areas that the RB equipment of convergence-level belongs at least two region in network, the RB equipment category of Access Layer in the network
A region at least two region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network,
Described device includes：
First receiving unit, the RB equipment for receiving Access Layer send ESADI messages, and the ESADI messages carry ground
Location information, the address information are set including MAC Address, the device identification of RB equipment of the Access Layer and the RB of the Access Layer
Standby regional number；
Unit, if for the RB equipment of the convergence-level regional number of itself and the area of the RB equipment of the Access Layer
Domain number is identical, then learns the MAC Address that the address information that the ESADI messages carry includes, and according to the RB of the Access Layer
The device identification of equipment and MAC Address generate corresponding MAC address entries.
Using the embodiment of the present invention, the RB equipment of Access Layer receives the message that local host is sent, and learns the source MAC of message
Address, generate corresponding MAC address entries, and the source of other RB equipment notification packets into the RB equipment affiliated areas of Access Layer
MAC Address, because the RB equipment of the Access Layer in the embodiment of the present invention only belongs to a region, therefore the RB equipment of Access Layer is only
The MAC Address in itself affiliated area can be learnt, so as to save the MAC Address space of the RB equipment of Access Layer, and reduced
The hardware resource of the RB equipment of Access Layer expends.
Brief description of the drawings
Fig. 1 is the application scenarios schematic diagram using MAC address learning of the embodiment of the present invention；
Fig. 2 is one embodiment flow chart of MAC address learning method of the present invention；
Fig. 3 is another embodiment flow chart of MAC address learning method of the present invention；
Fig. 4 is another embodiment flow chart of MAC address learning method of the present invention；
Fig. 5 is another embodiment flow chart of MAC address learning method of the present invention；
Fig. 6 is another embodiment flow chart of MAC address learning method of the present invention；
Fig. 7 is a kind of hardware structure diagram of equipment where MAC address learning device of the present invention；
Fig. 8 is one embodiment block diagram of MAC address learning device of the present invention；
Fig. 9 is another embodiment block diagram of MAC address learning device of the present invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, and make of the invention real
Apply the above-mentioned purpose of example, feature and advantage can be more obvious understandable, below in conjunction with the accompanying drawings to technical side in the embodiment of the present invention
Case is described in further detail.
Referring to Fig. 1, for the application scenarios schematic diagram of application MAC address learning of the embodiment of the present invention：
A kind of group-network construction of TRILL network is shown in Fig. 1.Wherein, the TRILL network includes convergence-level and access
Layer.Any RB equipment of convergence-level is all connected with all RB equipment of Access Layer；All RB equipment of convergence-level connect entirely, or
Person's linearly connected, as long as each RB equipment of convergence-level is mutually reachable.As shown in figure 1, TRILL network is set including 6 RB
It is standby, it is RB1, RB2, RB3, RB4, RB5 and RB6 respectively.RB1, RB2, RB3 and RB4 are located at the Access Layer of TRILL network, RB5 and
RB6 is located at the convergence-level of TRILL network.
TRILL network includes at least two regions, all areas that the RB equipment of convergence-level belongs at least two regions
Domain, the region that the RB equipment of Access Layer belongs at least two regions.Equal enabled terminals of RB equipment in TRILL network
Location interacts (End Station Address Distribution Information, ESADI) agreement.As shown in figure 1,
TRILL network includes region 1 and region 2.RB1 and RB2 belongs to region 1, and RB3 and RB4 belong to region 2, and RB5 belongs to region 1
With region 2, RB6 belongs to region 1 and region 2.
The MAC Address for the main frame hung under RB equipment in the RB learning equipment all areas of convergence-level；And safeguard all
The encapsulation or decapsulation of the TRILL heads of RB equipment in region.As shown in figure 1, RB5 or RB6 need with learning the MAC of main frame 10
Location, the MAC Address of main frame 11, the MAC Address of main frame 20, the MAC Address of main frame 30, the MAC Address of main frame 41 and main frame 42
MAC Address；And safeguard the encapsulation or decapsulation of RB1, RB2, RB3, RB4, RB5 and RB6 TRILL heads.
The MAC Address for the main frame hung under RB equipment in itself affiliated area of the RB learning equipments of Access Layer；And safeguard
The encapsulation or decapsulation of the TRILL heads of RB equipment in itself affiliated area.As shown in figure 1, RB1 or RB2 only need study to lead
The MAC Address of the MAC Address of machine 10, the MAC Address of main frame 11 and main frame 20；And safeguard RB1, RB2, RB5 and RB6
The encapsulation or decapsulation of TRILL heads.RB3 or RB4 only needs to learn MAC Address, the MAC Address and main frame of main frame 40 of main frame 30
41 MAC Address；And safeguard the encapsulation or decapsulation of RB3, RB4, RB5 and RB6 TRILL heads.
Therefore, the embodiment of the present invention can save the RB equipment of Access Layer by the TRILL network in layering and zoning domain
TRILL heads encapsulate or decapsulation list item space, and can save the MAC Address space of the RB equipment of Access Layer, so as to reduce
The hardware resource of the RB equipment of Access Layer expends.
The embodiment of MAC address learning of the present invention is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 2, for one embodiment flow chart of MAC address learning method of the present invention, the embodiment is applied to TRILL
Network, TRILL network include at least two regions, and the RB equipment of convergence-level belongs at least two regions in TRILL network
All areas, the region that the RB equipment of Access Layer belongs at least two regions in TRILL network, in TRILL network
The enabled ESADI agreements of RB equipment, the embodiment is described the RB equipment side of Access Layer from TRILL network, including with
Lower step：
Step 210：The RB equipment of Access Layer receives the message that local host is sent.
In the embodiment of the present invention, the message received is not limited specifically, it may be possible to broadcasting packet, such as, address
Analysis protocol (Address Resolution Protocol, ARP) request message；It is also likely to be unicast message, such as, ARP rings
Answer message；Be also possible to be other forms message.
Step 220：The source MAC of the RB learning equipment messages of Access Layer, generates corresponding MAC address entries.Wherein, message
Source MAC be local host MAC Address.
Step 230：Other RB equipment notice source MAC of the RB equipment of Access Layer into the RB equipment affiliated areas of Access Layer
Address, so that other RB learning equipments source MACs in affiliated area, generate corresponding MAC address entries.
In one embodiment, its into the RB equipment affiliated areas of Access Layer of the RB equipment of Access Layer in step 230
Its RB equipment is noticed source MAC and can realized in the form of ESADI messages, including：
Other RB equipment of the RB equipment of Access Layer into TRILL network send ESADI messages, and the ESADI messages carry
Address information, the address information include：The RB equipment of Access Layer receives the source MAC for the message that local host is sent, connect
Enter the regional number of the device identification of the RB equipment of layer and the RB equipment of Access Layer, so that the regional number of itself and the RB of Access Layer are set
The source MAC that the address information that standby regional number identical RB learning equipment ESADI messages carry includes, and according to Access Layer
RB equipment device identification and the source MAC that includes of address information that carries of ESADI messages generate corresponding MAC address entries.
Specifically, address information corresponding to source MAC first can be encapsulated in ESADI messages by the RB equipment of Access Layer
In, address information corresponding to the source MAC includes source MAC, the device identification of the RB equipment of Access Layer and Access Layer
The regional number of RB equipment；Then, other RB equipment into TRILL network then by ESADI messages are sent, so that the region of itself
The source MAC that number address information carried with the regional number identical RB learning equipment ESADI messages of the RB equipment of Access Layer includes
Address, and the source MAC included according to the address information of device identification and the carrying of ESADI messages of the RB equipment of Access Layer is given birth to
Into corresponding MAC address entries.
In another embodiment, MAC address learning method of the present invention is also wrapped in addition to performing step 210 to step 230
Include the following steps shown in execution Fig. 3：
Step 310：The RB equipment of Access Layer receives the ESADI messages that other RB equipment of Access Layer are sent.Wherein,
ESADI messages carry address information, the address information include MAC Address, send the ESADI messages Access Layer RB equipment
The regional number of the RB equipment of the Access Layer of device identification and transmission the ESADI messages.
Step 320：Judge that the RB of Access Layer of the RB equipment of the Access Layer regional number of itself with sending the ESADI messages is set
Whether standby regional number is identical, if identical, performs step 330；If it is different, then perform step 340.
Step 330：The MAC Address that the address information that study ESADI messages carry includes, and reported according to the ESADI is sent
The device identification of the RB equipment of the Access Layer of text and MAC Address generate corresponding MAC address entries.
Step 340：Abandon ESADI messages.
As seen from the above-described embodiment, the RB equipment of Access Layer receives the message that local host is sent, and learns the source MAC of message
Address, generate corresponding MAC address entries, and the source of other RB equipment notification packets into the RB equipment affiliated areas of Access Layer
MAC Address, such as, the form by sending ESADI messages notices the source MAC that other equipment learns message, when other set
After ESADI messages are received, judge whether the regional number of itself and the regional number carried in ESADI messages are identical, only area
Domain number is identical, that is, when showing that the RB equipment for receiving ESADI messages is in the same area with sending the RB equipment of ESADI messages,
Just learn the MAC Address in ESADI messages；And the RB equipment of Access Layer can also receive other RB equipment transmission of Access Layer
ESADI messages, judge whether the regional number of itself and the regional number carried in ESADI messages are identical, and only regional number is identical, i.e.,
When showing that the RB equipment for receiving ESADI messages is in the same area with sending the RB equipment of ESADI messages, just learn ESADI
MAC Address in message, it is achieved thereby that the RB equipment of Access Layer only learns the MAC Address in itself affiliated area, save
The MAC Address space of the RB equipment of Access Layer, and the hardware resource for reducing the RB equipment of Access Layer expends.
In further embodiment, MAC address learning method of the present invention is in addition to performing step 210 to step 230, when connecing
When to enter message that the local host that the RB equipment of layer receives is sent be unicast message, in addition to the following step shown in execution Fig. 4
Suddenly：
Step 410：The RB equipment of Access Layer judges the target MAC (Media Access Control) address of unicast message whether is included in MAC address entries, if really
Determining MAC address entries includes the target MAC (Media Access Control) address of unicast message, then performs step 420；If it is determined that do not include unicast in MAC address entries
The target MAC (Media Access Control) address of message, then perform step 430.
Step 420：The RB equipment of Access Layer forwards according to the target MAC (Media Access Control) address of unicast message to unicast message, stream
Journey terminates.Repeating process in the step is same as the prior art, will not be repeated here.
Step 430：Unicast message is carried out TRILL encapsulation by the RB equipment of Access Layer, obtains the first TRILL messages, and this
The mark for the port for receiving unicast message is carried in the TRILL heads of one TRILL messages.
Step 440：The RB equipment of Access Layer sends the first TRILL messages to a RB equipment of convergence-level, so as to receive
The RB equipment of the convergence-level of first TRILL messages decapsulates to the first TRILL messages, obtains unicast message, if receiving
The target MAC (Media Access Control) address of unicast message is not included in the MAC address entries of the RB equipment of the convergence-level of first TRILL messages, then by unicast
Message carries out TRILL encapsulation, obtains the 2nd TRILL messages, and the mark of port is carried in the TRILL heads of the 2nd TRILL messages,
And the 2nd TRILL messages are sent to the RB equipment of Access Layer.Wherein, the mark of port refers to that the RB equipment of Access Layer receives
The mark of the port of unicast message.
Step 450：The RB equipment of Access Layer receives the 2nd TRILL messages, and the 2nd TRILL messages are decapsulated,
Obtain unicast message.
Step 460：The RB equipment of Access Layer is broadcasted by other ports in addition to port corresponding to the mark except the port
Unicast message.Wherein, the mark of port refers to that the RB equipment of Access Layer receives the mark of the port of unicast message.
In addition, when the message that the local host that the RB equipment of Access Layer receives is sent is broadcasting packet, Access Layer
The broadcasting packet that other port broadcast receptions outside port of the RB equipment by receiving the broadcasting packet are arrived.Forwarding broadcast report
Literary process is same as the prior art, will not be repeated here.
As seen from the above-described embodiment, when the RB equipment of Access Layer only learns the MAC Address in itself affiliated area, access
The RB equipment of layer and the RB equipment of convergence-level can also ensure normally to forward the message received, so that access
The RB equipment of layer can save MAC Address space, and can reduce hardware resource consuming.
Referring to Fig. 5, for another embodiment flow chart of MAC address learning method of the present invention, the embodiment is applied to
TRILL network, TRILL network include at least two regions, and the RB equipment of convergence-level belongs at least twoth area in TRILL network
All areas in domain, the region that the RB equipment of Access Layer belongs at least two regions in TRILL network, TRILL nets
The enabled ESADI agreements of RB equipment in network, the embodiment are described the RB equipment side of convergence-level from TRILL network, wrapped
Include following steps：
Step 510：The RB equipment that the RB equipment of convergence-level receives Access Layer sends ESADI messages, and ESADI messages carry ground
Location information, and the area of RB equipment of the address information including MAC Address, the device identification of the RB equipment of Access Layer and Access Layer
Domain number.
Step 520：If the RB equipment of the convergence-level regional number of itself is identical with the regional number of the RB equipment of Access Layer, learn
Practise the MAC Address that the address information that ESADI messages carry includes, and according to the device identification of the RB equipment of Access Layer and MAC
Location generates corresponding MAC address entries.
In further embodiment, MAC address learning method of the present invention is also wrapped in addition to performing step 510 and step 520
Include the following steps shown in execution Fig. 6：
Step 610：The RB equipment of convergence-level receives the first TRILL messages that the RB equipment of Access Layer is sent, and this first
The mark of the port of the RB equipment reception unicast message of Access Layer is carried in the TRILL heads of TRILL messages.
Step 620：The RB equipment of convergence-level decapsulates to the first TRILL messages, obtains unicast message.
Step 630：The target MAC (Media Access Control) address for whether including unicast message in MAC address entries is judged, when MAC address entries include list
The target MAC (Media Access Control) address of text is reported, performs step 640；When the target MAC (Media Access Control) address for not including unicast message in MAC address entries, step is performed
Rapid 650.
Step 640：The RB equipment of convergence-level forwards according to the target MAC (Media Access Control) address of unicast message to unicast message, stream
Journey terminates.
Step 650：Unicast message is carried out TRILL encapsulation by the RB equipment of convergence-level, obtains the 2nd TRILL messages, and second
The mark of receiving port is carried in the TRILL heads of TRILL messages, and the 2nd TRILL messages are sent to the RB equipment of Access Layer,
So that Access Layer RB equipment decapsulates to the 2nd TRILL messages, unicast message is obtained, and pass through the mark pair except the port
Other port broadcast and unicast messages outside the port answered.Wherein, the mark of port refers to the first TRILL messages received
TRILL heads in the RB equipment of Access Layer that carries receive unicast message port mark.
Below by taking the RB1 in the TRILL network shown in Fig. 1 as an example, specific descriptions are with illustrating the MAC in the embodiment of the present invention
Location learning method, and the TRILL network includes region 1 and region 2, and RB1 and RB2 belong to region 1, and RB3 and RB4 belong to area
Domain 2, RB5 belong to region 1 and region 2, and RB6 belongs to region 1 and region 2：
RB1 receives the message of local host PC10 transmissions.The message is probably broadcasting packet, it is also possible to unicast report
Text.
The source MAC for the message that RB1 study receives, the source MAC are PC10 MAC Address, and are generated corresponding
MAC address entries.
RB1 to the MAC Address that itself affiliated area is that RB2, RB5, RB6 in region 1 notice PC10 so that RB2, RB5,
RB6 learns PC10 MAC Address, generates corresponding MAC address entries.
Wherein, RB1 can notice PC10 MAC Address by ESADI agreements, be specially：RB1 is into TRILL network
Other RB equipment send ESADI messages, and the ESADI messages carry address information, and the address information includes：PC10 MAC
The regional number of location, RB1 device identification and RB1 is region 1, so that the regional number of itself and RB1 regional number identical RB are set
It is standby, such as, RB2, RB5, RB6, the MAC Address for the PC10 that the address information that the ESADI messages for learning to receive carry includes, and
Corresponding MAC address entries are generated according to RB1 device identification and PC10 MAC Address.
In addition, RB1 is also possible to receive the ESADI messages that other RB equipment in TRILL network are sent, when other RB equipment
Regional number, such as, RB2, RB5, RB6 regional number, when identical with RB1 regional number, RB1 just learns the ESADI received
The MAC Address that the address information that message carries includes, and generate corresponding MAC address entries；Otherwise, RB1 abandons the ESADI received
Message.
Above-mentioned MAC address learning method, which realizes RB1, can only learn MAC Address of itself affiliated area i.e. in region 1, from
And RB1 MAC Address space is saved, and the hardware resource for reducing RB1 expends.
While in order to ensure that RB1 only learns MAC Address of itself affiliated area i.e. in region 1, also to ensure to receiving
To message normally forwarded, therefore RB1 needs use corresponding forwarding process according to the type of message received, tool
Body includes：
Firstth, the message that RB1 receives local host PC10 transmissions is broadcasting packet, and its corresponding forwarding process is as follows：
After RB1 receives the broadcasting packet of local host PC10 transmissions, outside the port by receiving the broadcasting packet
The broadcasting packet that other port broadcast receptions are arrived.Specifically, RB1 to except receive the broadcasting packet port in addition to other users
Side ports broadcast the broadcasting packet.Also, RB1 can also carry out TRILL encapsulation to the broadcasting packet, TRILL messages are obtained, and will
The TRILL messages are forwarded on broadcast tree, after the TRILL messages that RB5 or RB6 are received, continue to turn according to broadcast tree
Hair.
After RB3 receives the TRILL messages of RB5 or RB6 forwardings, then the TRILL messages are decapsulated and will be unsealed
The message obtained after dress is broadcasted to user-side port.Because RB3 enables ESADI agreements, up going port will not be learnt automatically
That is the source MAC for the message that RB5 or RB6 is sent.Similarly, after RB2 or RB4 receives the TRILL messages of RB5 or RB6 forwardings,
Identical repeating process is carried out with RB3, is repeated no more herein.
Secondth, the message that RB1 receives local host PC10 transmissions is unicast message, and its corresponding forwarding process is as follows：
After RB1 receives the unicast message of local host PC10 transmissions, the purpose of the unicast message is searched in MAC address entries
MAC Address, and different forwarding processes is used according to lookup result, specifically include：
(1) lookup result is the target MAC (Media Access Control) address that MAC address entries include unicast message, according to the destination of unicast message
Location forwards to unicast message.
(2) lookup result is the target MAC (Media Access Control) address for not including unicast message in MAC address entries, then RB1 carries out unicast message
TRILL is encapsulated, and obtains the first TRILL messages, the end for receiving unicast message is carried in the TRILL heads of the first TRILL messages
The mark of mouth.
And RB1 sends the first TRILL messages to a RB equipment of convergence-level.Wherein, a RB equipment of convergence-level can be with
Static state is specified, and can also select the maximum RB equipment in Nickname addresses or selection from the RB equipment of convergence-level automatically
The minimum RB equipment in Nickname addresses.Nickname is 16 bytes, is the basis that RB equipment calculates route.
For example RB1 sends the first TRILL messages to RB5, after RB5 receives the first TRILL messages, to the first TRILL
Message is decapsulated, and obtains unicast message.If RB5 MAC address entries include the target MAC (Media Access Control) address of unicast message, according to list
The destination address for reporting text forwards to unicast message.If with not including the purpose MAC of unicast message in RB5 MAC address entries
Location, then unicast message is subjected to TRILL encapsulation, obtains the 2nd TRILL messages, carried in the TRILL heads of the 2nd TRILL messages
The mark of port is stated, and the 2nd TRILL messages are sent to RB1.
After RB1 receives the 2nd TRILL messages of RB5 returns, the 2nd TRILL messages are decapsulated, obtain unicast
Message, and pass through other port broadcast and unicast messages in addition to port corresponding to the mark of above-mentioned port.Specifically, RB1 to
Other user-side ports in addition to port corresponding to the mark of above-mentioned port broadcast the unicast message.Also, RB1 can also be to this
Unicast message carries out TRILL encapsulation, obtains TRILL messages, and the TRILL messages are forwarded on broadcast tree.
As seen from the above-described embodiment, when the RB equipment of Access Layer only learns the MAC Address in itself affiliated area, convergence-level
RB equipment can also ensure normally to forward the message of the RB equipment of Access Layer transmission so that the RB of Access Layer is set
It is standby to save MAC Address space, and hardware resource consuming can be reduced.
Corresponding with foregoing MAC address learning embodiment of the method, present invention also offers the implementation of MAC address learning device
Example.
The embodiment of MAC address learning device provided by the invention can apply to TRILL network.Said apparatus embodiment
It can be realized, can also be realized by way of hardware or software and hardware combining by software.Exemplified by implemented in software, as one
Device on individual logical meaning, it is by corresponding computer program in nonvolatile memory by the processor of equipment where it
Instruction reads what operation in internal memory was formed.For hardware view, as shown in fig. 7, the equipment where MAC address learning device
A kind of hardware structure diagram, in addition to the processor shown in Fig. 7, network interface, internal memory and nonvolatile memory, implement
Equipment in example where device can also generally include other hardware, such as be responsible for the forwarding chip of processing message；From hardware
The equipment is also possible to be distributed equipment from structure, may include multiple interface cards, to be reported in hardware view
The extension of text processing.
Referring to Fig. 8, for one embodiment block diagram of MAC address learning device of the present invention.The device is applied to TRILL network
In the RB equipment of middle Access Layer, the network includes at least two regions, and the RB equipment of convergence-level belongs to institute in the network
State all areas at least two regions, the RB equipment of Access Layer belongs at least two region in the network one
Individual region, the enabled ESADI agreements of RB equipment in the network, described device include：First receiving unit 81, first learns
Unit 82 and notification unit 83.
Wherein, the first receiving unit 81 is used for the message for receiving local host transmission；
First unit 82 is used for the source MAC for learning the message, generates corresponding MAC address entries；
Other RB equipment that notification unit 83 is used for into the RB equipment affiliated areas of the Access Layer notice the source MAC
Address, so that source MAC described in other RB learning equipments in the region, generates corresponding MAC address entries.
Wherein, other RB equipment that notification unit 83 is specifically used for into TRILL network send ESADI messages, described
ESADI messages carry address information, and the address information includes：The source MAC, the Access Layer RB equipment equipment
The regional number of mark and the RB equipment of the Access Layer, so that the regional number of itself and the regional number of the RB equipment of the Access Layer
The source MAC that the address information that ESADI messages described in identical RB learning equipments carry includes, and according to the access
The device identification of the RB equipment of layer and the source MAC generate corresponding MAC address entries.
In an optional implementation, MAC address learning device also includes：Second receiving unit and the second study are single
First (not marked in Fig. 8).
Wherein, the second receiving unit is used for the other RB equipment transmission ESADI messages for receiving Access Layer, the ESADI reports
Text carries address information, equipment of the address information including MAC Address, the RB equipment for the Access Layer for sending the ESADI messages
Identify and send the regional number of the RB equipment of the Access Layer of the ESADI messages.
If the second unit is used for the RB equipment of the Access Layer regional number of itself with sending connecing for the ESADI messages
Enter that the regional number of the RB equipment of layer is identical, then learn the MAC Address that the address information that the ESADI messages carry includes, and root
Corresponding MAC address entries are generated according to the device identification of the RB equipment for the Access Layer for sending the ESADI messages and MAC Address.
In another optional implementation, MAC address learning device also includes：Encapsulation unit, transmitting element, decapsulation
Unit and radio unit (not marked in Fig. 8).
Wherein, encapsulation unit is used for if it is determined that not including the target MAC (Media Access Control) address of the unicast message in MAC address entries, by institute
State unicast message and carry out TRILL encapsulation, obtain the first TRILL messages, carry and connect in the TRILL heads of the first TRILL messages
Receive the mark of the port of the unicast message；
Transmitting element is used to send the first TRILL messages to a RB equipment of the convergence-level, so as to receive institute
The RB equipment for stating the first TRILL message convergence-levels decapsulates to the first TRILL messages, obtains the unicast message,
If receiving does not include the purpose of the unicast message in the MAC address entries of the RB equipment of the convergence-level of the first TRILL messages
MAC Address, then the unicast message is subjected to TRILL encapsulation, obtains the 2nd TRILL messages, the 2nd TRILL messages
The mark of the port is carried in TRILL heads, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer.
Decapsulation unit is used to receive the 2nd TRILL messages, and the 2nd TRILL messages are decapsulated,
Obtain the unicast message.
Radio unit is used to broadcast the unicast by other ports in addition to port corresponding to the mark of the port
Message.
Referring to Fig. 9, for another embodiment block diagram of MAC address learning device of the present invention.The device is applied to TRILL nets
In network in the RB equipment of convergence-level, the network includes at least two regions, and the RB equipment of convergence-level belongs in the network
All areas at least two region, the RB equipment of Access Layer belongs at least two region in the network
One region, the enabled ESADI agreements of RB equipment in the network, described device include：First receiving unit 91 and study
Unit 92.
Wherein, the first receiving unit 91 is used for the RB equipment transmission ESADI messages for receiving Access Layer, the ESADI messages
Address information is carried, the address information includes MAC Address, the device identification of the RB equipment of the Access Layer and the Access Layer
RB equipment regional number；
If unit 92 is used for the RB equipment of the convergence-level regional number of itself and the RB equipment of the Access Layer
Regional number is identical, then learns the MAC Address that the address information that the ESADI messages carry includes, and according to the Access Layer
The device identification of RB equipment and MAC Address generate corresponding MAC address entries.
In an optional implementation, MAC address learning device also includes：Second receiving unit, decapsulation unit
(do not marked in Fig. 9) with encapsulation unit.
Wherein, the first TRILL messages that the second receiving unit is sent for receiving the RB equipment of Access Layer, described first
The mark of the port of the RB equipment reception unicast message of the Access Layer is carried in the TRILL heads of TRILL messages.
Decapsulation unit is used to decapsulate the first TRILL messages, obtains the unicast message.
If encapsulation unit is used in the MAC address entries of the RB equipment of the convergence-level purpose for not including the unicast message
MAC Address, then the unicast message is subjected to TRILL encapsulation, obtains the 2nd TRILL messages, the 2nd TRILL messages
The mark of the port is carried in TRILL heads, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer, with
The Access Layer RB equipment is decapsulated the 2nd TRILL messages, obtain the unicast message, and by except described
Broadcast the unicast message in other ports outside port corresponding to the mark of port.
The function of unit and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, can be as the part that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Need to select some or all of module therein to realize the purpose of the present invention program.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
As seen from the above-described embodiment, the RB equipment of Access Layer receives the message that local host is sent, and learns the source MAC of message
Address, generate corresponding MAC address entries, and the source of other RB equipment notification packets into the RB equipment affiliated areas of Access Layer
MAC Address, because the RB equipment of the Access Layer in the embodiment of the present invention only belongs to a region, therefore the RB equipment of Access Layer is only
The MAC Address in itself affiliated area can be learnt, so as to save the MAC Address space of the RB equipment of Access Layer, and reduced
The hardware resource of the RB equipment of Access Layer expends.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
- A kind of 1. MAC address learning method, it is characterised in that methods described is applied to transparent interconnection of lots of links interconnection TRILL network, institute Stating network includes at least two regions, and the routing bridge RB equipment of convergence-level belongs at least two region in the network All areas, the region that the RB equipment of Access Layer belongs at least two region in the network, the network In RB equipment equal enabled terminals address interaction ESADI agreements, methods described includes：The RB equipment of Access Layer receives the message that local host is sent；The source MAC of message, generates corresponding MAC address entries described in the RB learning equipments of the Access Layer；Other RB equipment of the RB equipment of the Access Layer into the RB equipment affiliated areas of the Access Layer notice the source MAC Address, so that source MAC described in other RB learning equipments in the region, generates corresponding MAC address entries；Wherein, described in other RB equipment notice of the RB equipment of the Access Layer into the RB equipment affiliated areas of the Access Layer Source MAC, so that source MAC described in other RB learning equipments in the region, generates corresponding MAC address entries and specifically wrap Include：Other RB equipment of the RB equipment of the Access Layer into the network send ESADI messages, and the ESADI messages carry Address information, the address information include：The source MAC, the Access Layer RB equipment device identification and described connect Enter the regional number of the RB equipment of layer, so that the regional number of itself and the regional number identical RB equipment of the RB equipment of the Access Layer Learn the source MAC that the address information that the ESADI messages carry includes, and according to the RB equipment of the Access Layer Device identification and the source MAC generate corresponding MAC address entries.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：The RB equipment of the Access Layer receives the ESADI messages that other RB equipment of Access Layer are sent, and the ESADI messages carry Address information, the address information include MAC Address, send the ESADI messages Access Layer RB equipment device identification and Send the regional number of the RB equipment of the Access Layer of the ESADI messages；If the regional number of the RB equipment of Access Layer of the RB equipment of the Access Layer regional number of itself with sending the ESADI messages It is identical, then learn the MAC Address that the address information that the ESADI messages carry includes, and connecing according to the transmission ESADI messages The device identification and MAC Address for entering the RB equipment of layer generate corresponding MAC address entries.
- 3. according to the method for claim 1, it is characterised in that the message is unicast message, and methods described also includes：The RB equipment of the Access Layer is not if it is determined that include the target MAC (Media Access Control) address of the unicast message, by the list in MAC address entries Report text and carry out TRILL encapsulation, obtain the first TRILL messages, carried in the TRILL heads of the first TRILL messages and receive institute State the mark of the port of unicast message；The RB equipment of the Access Layer sends the first TRILL messages to a RB equipment of the convergence-level, so as to receive The RB equipment of the convergence-level of the first TRILL messages decapsulates to the first TRILL messages, obtains the unicast report Text, if not including the mesh of the unicast message in receiving the MAC address entries of the RB equipment of the convergence-level of the first TRILL messages MAC Address, then by the unicast message carry out TRILL encapsulation, obtain the 2nd TRILL messages, the 2nd TRILL messages The mark of the port is carried in TRILL heads, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer；The RB equipment of the Access Layer receives the 2nd TRILL messages, and the 2nd TRILL messages are decapsulated, Obtain the unicast message；The RB equipment of the Access Layer broadcasts the list by other ports in addition to port corresponding to the mark of the port Report text.
- A kind of 4. MAC address learning method, it is characterised in that methods described is applied to transparent interconnection of lots of links interconnection TRILL network, institute Stating network includes at least two regions, and the routing bridge RB equipment of convergence-level belongs at least two region in the network All areas, the region that the RB equipment of Access Layer belongs at least two region in the network, the network In RB equipment equal enabled terminals address interaction ESADI agreements, methods described includes：The RB equipment that the RB equipment of convergence-level receives Access Layer sends ESADI messages, and the ESADI messages carry address information, The area of RB equipment of the address information including MAC Address, the device identification of the RB equipment of the Access Layer and the Access Layer Domain number；If the RB equipment of the convergence-level regional number of itself is identical with the regional number of the RB equipment of the Access Layer, learn institute State the MAC Address that includes of address information of ESADI messages carrying, and according to the device identification of the RB equipment of the Access Layer and MAC Address generates corresponding MAC address entries.
- 5. according to the method for claim 4, it is characterised in that methods described also includes：The RB equipment of the convergence-level receives the first TRILL messages that the RB equipment of Access Layer is sent, the first TRILL messages TRILL heads in carry the Access Layer RB equipment receive unicast message port mark；The RB equipment of the convergence-level decapsulates to the first TRILL messages, obtains the unicast message；If the target MAC (Media Access Control) address of the unicast message, the convergence are not included in the MAC address entries of the RB equipment of the convergence-level The unicast message is carried out TRILL encapsulation by the RB equipment of layer, obtains the 2nd TRILL messages, the 2nd TRILL messages The mark of the port is carried in TRILL heads, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer, with The Access Layer RB equipment is decapsulated the 2nd TRILL messages, obtain the unicast message, and by except described Broadcast the unicast message in other ports outside port corresponding to the mark of port.
- 6. a kind of MAC address learning device, it is characterised in that described device is applied in transparent interconnection of lots of links interconnection TRILL network In the routing bridge RB equipment of Access Layer, the network includes at least two regions, the RB equipment category of convergence-level in the network All areas at least two region, the RB equipment of Access Layer belongs at least two region in the network A region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network, described device includes：First receiving unit, for receiving the message of local host transmission；First unit, for learning the source MAC of the message, generate corresponding MAC address entries；Notification unit, the source MAC is noticed for other RB equipment in the RB equipment affiliated areas to the Access Layer, So that source MAC described in other RB learning equipments in the region, generates corresponding MAC address entries；Wherein, other RB equipment that the notification unit is specifically used for into the network send ESADI messages, the ESADI Message carries address information, and the address information includes：The source MAC, the Access Layer RB equipment device identification With the regional number of the RB equipment of the Access Layer so that the regional number of itself is identical with the regional number of the RB equipment of the Access Layer RB learning equipments described in the source MAC that includes of address information that carries of ESADI messages, and according to the Access Layer The device identification of RB equipment and the source MAC generate corresponding MAC address entries.
- 7. device according to claim 6, it is characterised in that described device also includes：Second receiving unit, other RB equipment for receiving Access Layer send ESADI messages, and the ESADI messages carry ground Location information, the address information include MAC Address, the device identification of the RB equipment for the Access Layer for sending the ESADI messages and hair Give the regional number of the RB equipment of the Access Layer of the ESADI messages；Second unit, if for the RB equipment of the Access Layer regional number of itself and the access for sending the ESADI messages The regional number of the RB equipment of layer is identical, then learns the MAC Address that the address information that the ESADI messages carry includes, and according to The device identification and MAC Address for sending the RB equipment of the Access Layer of the ESADI messages generate corresponding MAC address entries.
- 8. device according to claim 6, it is characterised in that the message is unicast message, and described device also includes：Encapsulation unit, for if it is determined that not including the target MAC (Media Access Control) address of the unicast message in MAC address entries, by the unicast report Text carries out TRILL encapsulation, obtains the first TRILL messages, is carried in the TRILL heads of the first TRILL messages and receive the list Report the mark of the port of text；Transmitting element, for sending the first TRILL messages to a RB equipment of the convergence-level, so as to receive described the The RB equipment of one TRILL message convergence-levels decapsulates to the first TRILL messages, the unicast message is obtained, if connecing With receiving in the MAC address entries of the RB equipment of the convergence-level of the first TRILL messages purpose MAC that does not include the unicast message Location, then the unicast message is subjected to TRILL encapsulation, obtains the 2nd TRILL messages, the TRILL heads of the 2nd TRILL messages It is middle to carry the mark of the port, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer；Decapsulation unit, for receiving the 2nd TRILL messages, the 2nd TRILL messages are decapsulated, obtained The unicast message；Radio unit, for broadcasting the unicast report by other ports in addition to port corresponding to the mark of the port Text.
- 9. a kind of MAC address learning device, it is characterised in that described device is applied in transparent interconnection of lots of links interconnection TRILL network In the routing bridge RB equipment of convergence-level, the network includes at least two regions, the RB equipment category of convergence-level in the network All areas at least two region, the RB equipment of Access Layer belongs at least two region in the network A region, the equal enabled terminals address interaction ESADI agreements of RB equipment in the network, described device includes：First receiving unit, the RB equipment for receiving Access Layer send ESADI messages, and the ESADI messages carry address letter Breath, RB equipment of the address information including MAC Address, the device identification of the RB equipment of the Access Layer and the Access Layer Regional number；Unit, if for the RB equipment of the convergence-level regional number of itself and the regional number of the RB equipment of the Access Layer It is identical, then learn the MAC Address that the address information that the ESADI messages carry includes, and according to the RB equipment of the Access Layer Device identification and MAC Address generate corresponding MAC address entries.
- 10. device according to claim 9, it is characterised in that described device also includes：Second receiving unit, the first TRILL messages that the RB equipment for receiving Access Layer is sent, the first TRILL messages TRILL heads in carry the Access Layer RB equipment receive unicast message port mark；Decapsulation unit, for being decapsulated to the first TRILL messages, obtain the unicast message；Encapsulation unit, if the purpose MAC for not including the unicast message in the MAC address entries of the RB equipment of the convergence-level Location, then the unicast message is subjected to TRILL encapsulation, obtains the 2nd TRILL messages, the TRILL heads of the 2nd TRILL messages It is middle to carry the mark of the port, and the 2nd TRILL messages are sent to the RB equipment of the Access Layer, so that described connect Enter layer RB equipment to decapsulate the 2nd TRILL messages, obtain the unicast message, and pass through the mark except the port Broadcast the unicast message in other ports outside port corresponding to knowledge.
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| US9935783B2 (en) * | 2016-01-07 | 2018-04-03 | Juniper Networks, Inc. | System for avoiding traffic flooding due to asymmetric MAC learning and achieving predictable convergence for PBB-EVPN active-active redundancy |
| CN106789647A (en) * | 2016-12-13 | 2017-05-31 | 迈普通信技术股份有限公司 | A kind of method and device of Message processing |
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| CN102694714A (en) * | 2011-03-21 | 2012-09-26 | 华为技术有限公司 | Method, device, system and a non-forwarder non-forwarding bridge for message transmission in TRILL network |
| CN102868614A (en) * | 2012-09-13 | 2013-01-09 | 杭州华三通信技术有限公司 | Packet forwarding method in TRILL (transparent interconnection of lots of links) network and routing bridge |
| CN103401781A (en) * | 2013-07-18 | 2013-11-20 | 杭州华三通信技术有限公司 | Access method and access device applied to TRILL (Transparent Interconnection of Lots of Links) network |
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| US8634297B2 (en) * | 2010-11-01 | 2014-01-21 | Cisco Technology, Inc. | Probing specific customer flow in layer-2 multipath networks |
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|---|---|---|---|---|
| CN102694714A (en) * | 2011-03-21 | 2012-09-26 | 华为技术有限公司 | Method, device, system and a non-forwarder non-forwarding bridge for message transmission in TRILL network |
| CN102868614A (en) * | 2012-09-13 | 2013-01-09 | 杭州华三通信技术有限公司 | Packet forwarding method in TRILL (transparent interconnection of lots of links) network and routing bridge |
| CN103401781A (en) * | 2013-07-18 | 2013-11-20 | 杭州华三通信技术有限公司 | Access method and access device applied to TRILL (Transparent Interconnection of Lots of Links) network |
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