CN102891764B - A kind of route-bridge safeguards the method and system of information - Google Patents
A kind of route-bridge safeguards the method and system of information Download PDFInfo
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- CN102891764B CN102891764B CN201110206472.9A CN201110206472A CN102891764B CN 102891764 B CN102891764 B CN 102891764B CN 201110206472 A CN201110206472 A CN 201110206472A CN 102891764 B CN102891764 B CN 102891764B
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Abstract
The present invention discloses a kind of method that route-bridge safeguards information, including：Select one or more super route-bridges for being used to safeguard whole multi-link transparent interconnection (TRILL) intermediary of network matter access control (MAC) information；In TRILL network, the MAC information of local server host is sent to super route-bridge and safeguarded by other route-bridges, and safeguards the MAC information of the server host related to itself；The present invention also provides the system that a kind of route-bridge safeguards information.Technique according to the invention scheme, can reduce the quantity that route-bridge safeguards MAC information, reduce its maintenance difficulties.
Description
Technical field
The present invention relates in the network communications technology, more particularly to TRILL network, a kind of method that route-bridge safeguards information
And system.
Background technology
Multi-link transparent interconnection (TRILL, Transparent Interconnection over Lots of Links),
It is articulamentum (L2) network that Internet Engineering Task group (IETF, Internet Engineering Task Force) is recommended
Standard, the deficiency for solving Spanning-Tree Protocol in large-scale data center (STP, Spanning TreeProtocol).In L2
In network, STP avoids loop by blocking redundant link, but exists simultaneously due to the bandwidth that the obstruction of redundant link is caused
Waste.TRILL is by by Intermediate System-to-Intermediate System (IS-IS, Intermediate System to Intermediate
System) Routing Protocol is incorporated into L2 networks, solves the loop problem of L2 networks, while remaining the multichannel in L2 networks
Footpath, also referred to as equal cost multipath (ECMP, Equivalent Cost Multiple Path).
In TRILL network, the equipment of operation TRILL protocol is referred to as route-bridge (RBridge, RouterBridge).
In the entrance of TRILL network, the unicast data frames of end equipment (End Station) are packaged into the unicast data of TRILL forms
Frame, i.e., addition TRILL and outer layer frame head, the unicast data of the TRILL forms after encapsulation before original unicast data frames
Frame is referred to as TRILL data frames, and the route-bridge that TRILL data frames inject TRILL network is referred to as into Ingress route-bridges；
It is original unicast data frames by the deblocking of TRILL data frames, and be transmitted to the routing network of end equipment in the outlet of TRILL network
Bridge is referred to as Egress route-bridges.In addition to Ingress route-bridges and Egress route-bridges, other route-bridges be responsible for by
TRILL data frames are sent to Egress route-bridges with jumping from Ingress route-bridges one, and this kind of route-bridge is referred to as passing
Defeated route-bridge.
In TRILL network, an end equipment wants to communicate with another end equipment in network, it is necessary to know that opposite end is set
Standby MAC Address, and be attached thereto the alias (Nickname) of route-bridge, i.e., locally needing medium access control
The mapping table of (MAC, Medium/MediaAccess Control) information, i.e. { MAC, VLAN, Egress }, Ingress
Route-bridge could encapsulate TRILL and outer layer mac frame head before original unicast data frames, otherwise, can only be with multicast side
Original unicast data frames are sent to whole TRILL network by formula.Therefore the route-bridge of connection data center network is except needing
Learn in local data center network outside the MAC information of Servers-all, the MAC that also learn on other route-bridges of distal end believes
Breath.
Data center network is different according to scale, and usual number of servers therein is led at hundreds of to thousands of
Cross route-bridge connection server group into network be TRILL network, it is more next with the continuous extension of intel Virtualization Technology application
More virtual machines are deployed on original server host, and each virtual machine will distribute new MAC information, and this will cause
Growth of the MAC information contents on the basis of original at double, along with the MAC information learnt from distal end route-bridge, route
Bridge needs the MAC information contents safeguarded to become very huge, even more than in route-bridge { MAC, VLAN, Egress }
Mapping table capacity, therefore add the maintenance difficulties of route-bridge, traditional route-bridge learns the side of MAC information
Method, has not caught up with the growing paces of server host quantity in data center network.
In actual applications, not all virtual machine is required for being communicated with the virtual machine of other networks, also
To say, in route-bridge huge { MAC, VLAN, Egress } mapping table, only least a portion of entry be used into
Communication between row virtual machine, other most MAC information are redundancies, therefore on the border road of each data center network
All safeguard that the MAC information of vast number is not necessarily on bridge.In addition, the server host of data center network can frequency
Numerous that address resolution protocol (ARP, Address Resolution Protocol) message is sent into network, the ARP messages can be sent out
It is sent on all route-bridges, this will waste certain bandwidth, and network is impacted.
The content of the invention
In view of this, the method and system of information, energy are safeguarded it is a primary object of the present invention to provide a kind of route-bridge
The quantity that route-bridge safeguards MAC information is enough reduced, its maintenance difficulties is reduced.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The present invention provides a kind of method that route-bridge safeguards information, including：
Select one or more super route-bridges for being used to safeguard MAC information in whole TRILL network；
In TRILL network, the MAC information of local server host is sent to super route-bridge by other route-bridges
Safeguarded, and safeguard the MAC information of the server host related to itself.
In the above method,
Other described route-bridges safeguard that the MAC information of the server host related to itself is：Other route-bridges are tieed up
The MAC information of the shield server host related to itself, others MAC information in TRILL network is not safeguarded, when other routing networks
When bridge needs others MAC information, obtained from super route-bridge；
The server host related to other described route-bridges includes：Local server host and and home server
The far-end server main frame of main-machine communication.
In the above method, this method also includes：
Other route-bridges in TRILL network receive primitive frame, and the primitive frame needed for not finding locally is corresponding
During MAC entries, primitive frame is encapsulated as TRILL data frames and sent；
Super route-bridge judges that the Egress route-bridges in the TRILL heads of the TRILL data frames received are certainly
Body, if it is not, the TRILL data frames that forwarding is received；If it is, super route-bridge is carried out to the TRILL data frames received
Decapsulation, inquires about the corresponding MAC entries of primitive frame, according to lookup result, to TRILL data in the MAC information of local maintenance
Frame is handled.
In the above method, other route-bridges in the TRILL network receive primitive frame, needed for not finding locally
Primitive frame corresponding MAC entries when, by primitive frame be encapsulated as TRILL data frames send for：
Other route-bridges in TRILL network are received after the primitive frame that local server host is sent, and inquiry is local
The MAC information of maintenance, if finding the corresponding MAC entries of the primitive frame in MAC information, the primitive frame is encapsulated as
TRILL data frames are simultaneously sent；Otherwise, primitive frame is encapsulated as the TRILL that Egress route-bridges are super route-bridge
Data frame, and send.
It is described according to lookup result in the above method, TRILL data frames are processed as：
If super route-bridge finds the corresponding MAC entries of primitive frame, and primitive frame in the MAC information of local maintenance
In target MAC (Media Access Control) address be local server host MAC Address, then decapsulating obtained primitive frame, to be sent to this local
Server host；
If super route-bridge finds the corresponding MAC entries of primitive frame, but purpose in the MAC information of local maintenance
MAC Address is not the MAC Address of local server host, then primitive frame is re-packaged into for the purpose of Egress route-bridges
The TRILL unicast data frames of route-bridge are simultaneously sent；
If super route-bridge does not inquire corresponding MAC bars according to primitive frame in the MAC information of local maintenance
Mesh, then be re-packaged into TRILL multicast packets frame by the primitive frame and send, or the primitive frame is abandoned.
In the above method, primitive frame is re-packaged into routeing for the purpose of Egress route-bridges by the super route-bridge
TRILL unicast data frames of bridge and after sending, this method also includes：Super route-bridge is by the MAC entries found
The Ingress route-bridges of the TRILL data frames are sent to, and the Ingress route-bridges of the TRILL data frames are recorded as
The subscriber of the MAC entries.
In the above method, this method also includes：
The corresponding relation of the local IP address received and MAC Address is sent to super route-bridge by other route-bridges
Safeguarded, and the corresponding relation of the maintenance IP address related to itself and MAC Address.
In the above method, other described route-bridges send out the corresponding relation of the local IP address received and MAC Address
Giving super route-bridge progress maintenance is：
Other route-bridges are received after address resolution protocol (ARP) message that local server host is sent, if should
ARP messages are gratuitous ARP packets, and other route-bridges prevent the gratuitous ARP packet from being broadcasted and to this in whole TRILL network
ARP packet parsings, reflecting for local IP address and MAC Address is updated according to the corresponding relation of IP address therein and MAC Address
Relation table is penetrated, and the corresponding relation of the IP address and MAC Address is advertised to super route-bridge；Super route-bridge is according to receipts
The IP address and the corresponding relation of MAC Address arrived, is carried out more to the IP address and the mapping table of MAC Address locally preserved
Newly.
In the above method, this method also includes：
If it is ARP request message, other roads that other route-bridges, which receive the ARP messages that local server host sends,
Prevent the ARP request message from being broadcasted in whole TRILL network by bridge, and search the IP address locally preserved and MAC Address
Mapping table；If according to the IP address carried in ARP request message, corresponding MAC is found in the mapping table
Address, then other route-bridges the MAC Address is sent to by the server host by arp reply message；Conversely, other
Route-bridge asks the corresponding MAC Address of the IP address to super route-bridge, and by arp reply message, by super route
The MAC Address that bridge is replied is sent to the server host.
In the above method, the corresponding relation of the IP address related to other described route-bridges and MAC Address includes：
The IP address of the local server host of other route-bridges and the corresponding relation of MAC Address, and with it is local
The IP address and the corresponding relation of MAC Address of the far-end server main frame of server host communication.
The present invention also provides the system that a kind of route-bridge safeguards information, including：Other route-bridges and super routing network
Bridge；Wherein,
Other route-bridges, are tieed up for the MAC information of local server host to be sent into super route-bridge
Shield, and safeguard the MAC information of the server host related to itself；
Super route-bridge, for safeguarding MAC information in whole TRILL network.
In said system,
Other route-bridges are additionally operable to, and receive primitive frame, and the required corresponding MAC entries of primitive frame are not being found locally
When, primitive frame is encapsulated as TRILL data frames and sent；
Super route-bridge is additionally operable to, and judges that the Egress route-bridges in the TRILL heads of the TRILL data frames received are
It is not itself, if it is not, the TRILL data frames that forwarding is received；If it is, the TRILL data frames received are decapsulated,
The corresponding MAC entries of primitive frame are inquired about in the MAC information of local maintenance, according to lookup result, at TRILL data frames
Reason.
In said system,
Other described route-bridges are additionally operable to, and the corresponding relation of the local IP address received and MAC Address is sent to
Super route-bridge is safeguarded, and the corresponding relation of the maintenance IP address related to itself and MAC Address；
The super route-bridge is additionally operable to, and the IP address and the corresponding relation of MAC Address received is safeguarded.
The route-bridge that the present invention is provided safeguards the method and system of information, selects one or more whole for safeguarding
The super route-bridge of MAC information in TRILL network；In TRILL network, other route-bridges are by local server host
MAC information is sent to super route-bridge and safeguarded, and safeguards the MAC information of the server host related to itself, therefore
The MAC information of magnanimity and/or the corresponding relation of IP address and MAC Address are stored using the super route-bridge specified, other
Route-bridge only needs to the far-end server main frame safeguarded local server host and communicated with local server host
MAC information and/or IP address and MAC Address corresponding relation, therefore, it is possible to reduce route-bridge safeguard MAC information and/or
The quantity of the corresponding relation of IP address and MAC Address, reduces the maintenance difficulties and performance requirement of route-bridge；In addition, other
Route-bridge is stopped ARP messages, prevents the broadcast of ARP messages in a network, so as to reduce a large amount of mac learning messages
With occupancy of the ARP messages to the network bandwidth.
Brief description of the drawings
Fig. 1 is that the present invention realizes that route-bridge safeguards the schematic flow sheet of the method for information；
Fig. 2 is of the invention when other route-bridges receive primitive frame, the place of other route-bridges and super route-bridge
The schematic flow sheet of reason method；
Fig. 3 is that the present invention realizes that route-bridge safeguards the schematic network structure of the embodiment of the method for information；
Fig. 4 is that the present invention realizes that route-bridge safeguards the structural representation of the system of information.
Embodiment
The present invention basic thought be：Selecting one or more is used to safeguard the super of MAC information in whole TRILL network
Route-bridge；In TRILL network, the MAC information of local server host is sent to super routing network by other route-bridges
Bridge is safeguarded, and safeguards the MAC information of the server host related to itself.
The present invention is described in further detail again below by drawings and the specific embodiments.
The present invention provides a kind of method that route-bridge safeguards information, and Fig. 1 is that the present invention realizes that route-bridge safeguards information
Method schematic flow sheet, as shown in figure 1, this method comprises the following steps：
Step 101, one or more super route-bridges for being used to safeguard MAC information in whole TRILL network are selected；
Specifically, in TRILL network, selecting one or more MAC information and/or IP for being used to safeguard magnanimity in network
The route-bridge of the corresponding relation of address and MAC Address, the route-bridge is called super route-bridge；The super route-bridge exists
The identity of the super route-bridge of other route-bridges oneself is noticed in TRILL network, wherein, notifying method is super routing network
Bridge carries other in the mark of super route-bridge, TRILL network in TRILL network sends multicast message, the message and route
Bridge is received after the multicast message, according to mark therein it is known which route-bridge is super route-bridge in network.
Step 102, the MAC information of local server host is sent to super route-bridge and carried out by other route-bridges
Safeguard；
Specifically, other route-bridges in TRILL network the MAC information of local server host is sent to it is super
Route-bridge, super route-bridge is safeguarded to the MAC information received；The local server host refers to and by referring to
Fixed route-bridge accesses the server host of TRILL network, and the server host is exactly the local of the route-bridge specified
Server host.
Step 103, other route-bridges safeguard the MAC information of the server host related to itself；
Specifically, in the present invention, other route-bridges only maintain the MAC information of the server host related to itself, no
Others MAC information in TRILL network is safeguarded, can be from super route when other route-bridges need others MAC information
Bridge is obtained；Wherein, the server host related to other route-bridges includes：Local server host and with it is local
The far-end server main frame of server host communication.
Step 104, the corresponding relation of the local IP address received and MAC Address is sent to super by other route-bridges
Route-bridge is safeguarded, and the corresponding relation of the maintenance IP address related to itself and MAC Address；
Specifically, in TRILL network, other route-bridges can receive the ARP messages that local server host is sent, receive
To after ARP messages, if the ARP messages are gratuitous ARP packets, it is local IP to represent the content carried in the ARP messages
Location and the corresponding relation of MAC Address, then other route-bridges prevent the gratuitous ARP packet from being broadcasted in whole TRILL network, and
To the ARP packet parsings, according to the local IP address of the corresponding relation of IP address therein and MAC Address renewal and MAC Address
Mapping table, and the corresponding relation of the IP address and MAC Address is advertised to super route-bridge；Super route-bridge will
In the mapping table for checking the IP address locally preserved and MAC Address, if with having preserved the IP address received and MAC
The corresponding relation of location, if not provided, the corresponding relation with regard to preserving the IP address that receives and MAC Address, to the IP that locally preserves
The mapping table of location and MAC Address is updated, if so, need not then be updated；
If the ARP messages that other route-bridges are received are ARP request messages, the server host being connected with itself is represented
Want by the corresponding MAC Address of the ARP Receive messages some IP address, then other route-bridges can prevent the ARP request message
Broadcasted in whole TRILL network, and search the IP address locally preserved and the mapping table of MAC Address, if according to ARP
The IP address carried in message, finds corresponding MAC Address in the mapping table, then other route-bridges directly pass through
Arp reply message, the MAC Address is sent to the server host being connected with itself, if do not had in the mapping table
Corresponding MAC Address is found, then other route-bridges ask the corresponding MAC Address of the IP address to super route-bridge, wait to surpass
Level route-bridge is replied after MAC Address, and other route-bridges are again by arp reply message, the MAC that super route-bridge is replied
Address is sent to the server host being connected with itself；
The corresponding relation of other route-bridges maintenance IP address related to itself and MAC Address, wherein being route with other
The corresponding relation of the related IP address of bridge and MAC Address includes：The IP address of the local server host of other route-bridges
With IP address and the MAC of the corresponding relation of MAC Address, and the far-end server main frame communicated with local server host
The corresponding relation of location.
In the method that information is safeguarded based on above-mentioned route-bridge, the present invention, when other route-bridges receive primitive frame, its
The processing method of his route-bridge and super route-bridge is as shown in Fig. 2 this method comprises the following steps：
Step 201, other route-bridges in TRILL network receive primitive frame, original needed for not finding locally
During the corresponding MAC entries of frame, primitive frame is encapsulated as TRILL data frames and sent；
Specifically, other route-bridges in TRILL network are received after the primitive frame that local server host is sent, look into
The MAC information of local maintenance is ask, if finding the corresponding MAC entries of the primitive frame in MAC information, the primitive frame is encapsulated
For TRILL data frames and send；Otherwise, it is super route-bridge primitive frame to be encapsulated as into Egress route-bridges
TRILL data frames, and send, i.e., the MAC information in whole network is safeguarded due to super route-bridge, therefore when other roads
By bridge when locally can not find the MAC entries of needs, super route-bridge is sent to after primitive frame is encapsulated and is carried out accordingly
Processing；Wherein, preserve multiple MAC entries in MAC information, MAC entries for the server host related to route-bridge MAC
Location, the mapping relations of VLAN, Egress route-bridge, corresponding MAC entries can be searched according to primitive frame in MAC information.
Step 202, super route-bridge is received after TRILL data frames, in the TRILL heads for judging TRILL data frames
Egress route-bridges are itself, if it is not, step 203 is performed, if it is, performing step 204.
Step 203, the TRILL data frames that super route-bridge forwarding is received；
If specifically, the Egress route-bridges in the TRILL heads for the TRILL data frames that super route-bridge is received are not
It is itself, then super route-bridge forwards the TRILL data frames to give other route-bridges, and super route-bridge is used as transmission here
Route-bridge, for forwarding TRILL data frames.
Step 204, super route-bridge is decapsulated to the TRILL data frames received, in the MAC information of local maintenance
It is middle to inquire about the corresponding MAC entries of primitive frame, according to lookup result, TRILL data frames are handled；
If specifically, the Egress route-bridges in the TRILL heads for the TRILL data frames that super route-bridge is received are
Itself, then super route-bridge is decapsulated to the TRILL data frames, obtains primitive frame, super route-bridge is according to original
The target MAC (Media Access Control) address carried in frame inquires about the MAC information of local maintenance；
If super route-bridge finds the corresponding MAC entries of primitive frame, and primitive frame in the MAC information of local maintenance
In target MAC (Media Access Control) address be MAC Address with local server host, then decapsulating obtained primitive frame, to be sent to this local
Server host；
If super route-bridge finds the corresponding MAC entries of primitive frame, but purpose in the MAC information of local maintenance
MAC Address is not the MAC Address of local server host, then primitive frame is re-packaged into Egress roads by super route-bridge
By the TRILL unicast data frames (Ingress route-bridges do not change) that bridge is purpose route-bridge, by the TRILL unicast numbers
Sent according to frame；
If super route-bridge does not inquire corresponding MAC bars according to primitive frame in the MAC information of local maintenance
Mesh, then super route-bridge the primitive frame is re-packaged into TRILL multicast packets frame and (Ingress routing networks are sent
Bridge does not change), or super route-bridge abandons the primitive frame.
In step 204, will be original if super route-bridge finds the corresponding MAC entries of primitive frame in MAC information
Frame is re-packaged into Egress route-bridges and is the TRILL unicast data frames of purpose route-bridge, and sends, and this method is also
Including：
Step 205, the MAC entries found are sent to the Ingress routing networks of the TRILL data frames by super route-bridge
Bridge, and the Ingress route-bridges of the TRILL data frames are recorded as to the subscriber of the MAC entries, so that the MAC entries are sent out
During changing, the MAC entries of renewal can be sent to the Ingress route-bridges by super route-bridge.
Embodiment
Fig. 3 is that the present invention realizes that route-bridge safeguards the schematic network structure of the embodiment of the method for information, such as Fig. 3 institutes
Show, in the present embodiment, RB1~RB5 is the border routing bridge of connection data center network, and RB is transmission route bridge, super
RB is super route-bridge；Number is sent to the server host H1 being connected with RB3 with the server host H1 being connected with RB1 below
Illustrated exemplified by, this method comprises the following steps：
Step 1, super RB notices other RB from as super route-bridge in TRILL network.
Step 2, other route-bridges (RB1~RB5) by the MAC information and/or IP address of local server host with
The corresponding relation of MAC Address is sent to super RB and safeguarded.
Step 3, other route-bridges safeguard the MAC information of the server host related to itself, and other route-bridges
The corresponding relation of the local IP address received and MAC Address is sent into super route-bridge to be safeguarded, other routing networks
The corresponding relation of the bridge maintenance IP address related to itself and MAC Address.
Based on the above method, processing method and super RB of the present embodiment after RB1 receives primitive frame are received after primitive frame
Processing method comprise the following steps：
Step 1, when RB1 receives the primitive frame sent with H1 to the H1 being connected with RB3, MAC information is locally being searched, if
Corresponding MAC entries are found, then primitive frame directly is packaged into TRILL data frames sends；If not finding corresponding MAC
Entry, then be encapsulated as the TRILL data frames that Egress RB are super RB by primitive frame, be sent to super RB.
Step 2, super RB is received after TRILL data frames, is carried out decapsulation processing to TRILL data frames, is obtained primitive frame,
If target MAC (Media Access Control) address in primitive frame be with local server host, the primitive frame is sent to the server host；If mesh
MAC Address be not local server host address, then the primitive frame is re-packaged into Egress route-bridges for mesh
Route-bridge TRILL data frames (Ingress does not change)；In the present embodiment, the primitive frame is re-packaged into Egress
Route-bridge sends for RB3 TRILL data frames (Ingress does not change).
Step 3, the MAC entries for the H1 being connected with RB3 are advertised to RB1 by super RB, and RB1 is recorded as into the MAC entries
Subscriber, notify RB1 when changing so as to the MAC entries.
Step 4, if the H1 being connected with RB1 knows the IP address for the H1 being connected with RB3, but do not know that the IP address is corresponding
MAC Address, then can in TRILL network broadcast ARP request message, the corresponding MAC Address of the acquisition request IP address, RB1 meetings
Prevent the ARP request message from being broadcasted in whole TRILL network, first search the IP address of local maintenance and the mapping of MAC Address
Relation table, if it is found, then directly reply arp reply message, wherein carry the MAC Address found, otherwise, RB1 is to super RB
The corresponding MAC Address of the IP address is asked, the ARP request message is replied again after super RB is responded.
To realize the above method, the present invention also provides the system that a kind of route-bridge safeguards information, and Fig. 4 is realization of the present invention
Route-bridge safeguards the structural representation of the system of information, as shown in figure 4, the system includes：Other route-bridges 41 and super
Route-bridge 42；Wherein,
Other route-bridges 41, enter for the MAC information of local server host to be sent into super route-bridge 42
Row is safeguarded, and safeguards the MAC information of the server host related to itself；
Super route-bridge 42, for safeguarding MAC information in whole TRILL network.
Other route-bridges 41 are additionally operable to, and receive primitive frame, and the required corresponding MAC bars of primitive frame are not being found locally
During mesh, primitive frame is encapsulated as TRILL data frames and sent；
Super route-bridge 42 is additionally operable to, the Egress route-bridges in the TRILL heads for the TRILL data frames that judgement is received
Whether itself, if it is not, the TRILL data frames that receive of forwarding；If it is, being unsealed to the TRILL data frames received
Dress, the corresponding MAC entries of primitive frame are inquired about in the MAC information of local maintenance, according to lookup result, TRILL data frames are entered
Row processing.
Other described route-bridges 41 are additionally operable to, and the corresponding relation of the local IP address received and MAC Address is sent
Safeguarded to super route-bridge 42, and the corresponding relation of the maintenance IP address related to itself and MAC Address；
The super route-bridge 42 is additionally operable to, and the IP address and the corresponding relation of MAC Address received is safeguarded.
Other described route-bridges safeguard that the MAC information of the server host related to itself is：Other route-bridges are tieed up
The MAC information of the shield server host related to itself, others MAC information in TRILL network is not safeguarded, when other routing networks
When bridge needs others MAC information, obtained from super route-bridge；
The server host related to other described route-bridges includes：Local server host and and home server
The far-end server main frame of main-machine communication.
The corresponding relation of the local IP address received and MAC Address is sent to super route by other described route-bridges
Bridge carries out maintenance：Other route-bridges are received after the ARP messages that local server host is sent, if the ARP messages
It is gratuitous ARP packet, other route-bridges prevent the gratuitous ARP packet from being broadcasted in whole TRILL network and to the ARP messages
Parsing, according to the local IP address of the corresponding relation of IP address therein and MAC Address renewal and the mapping relations of MAC Address
Table, and the corresponding relation of the IP address and MAC Address is advertised to super route-bridge；Super route-bridge is according to the IP received
Address and the corresponding relation of MAC Address, are updated to the IP address and the mapping table of MAC Address locally preserved.
The corresponding relation of the IP address related to other described route-bridges and MAC Address includes：
The IP address of the local server host of other route-bridges and the corresponding relation of MAC Address, and with it is local
The IP address and the corresponding relation of MAC Address of the far-end server main frame of server host communication.
In the present invention, in TRILL network, other route-bridges can be one or more.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
Any modifications, equivalent substitutions and improvements made within the spirit and principles in the present invention etc., should be included in the protection of the present invention
Within the scope of.
Claims (13)
1. a kind of method that route-bridge safeguards information, it is characterised in that this method includes：
Select one or more for safeguarding whole multi-link transparent interconnection (TRILL) intermediary of network matter access control (MAC) letter
The super route-bridge of breath；
In TRILL network, the MAC information of local server host is sent to super route-bridge and carried out by other route-bridges
Safeguard, and safeguard the MAC information of the server host related to itself.
2. according to the method described in claim 1, it is characterised in that
Other described route-bridges safeguard that the MAC information of the server host related to itself is：Other route-bridges safeguard with
The MAC information of itself related server host, others MAC information in TRILL network is not safeguarded, when other route-bridges are needed
When wanting others MAC information, obtained from super route-bridge；
The server host related to other described route-bridges includes：Local server host and with home server main frame
The far-end server main frame of communication.
3. according to the method described in claim 1, it is characterised in that this method also includes：
Other route-bridges in TRILL network receive primitive frame, and the required corresponding MAC bars of primitive frame are not being found locally
During mesh, primitive frame is encapsulated as TRILL data frames and sent；
Super route-bridge judge Egress route-bridges in the TRILL heads of the TRILL data frames received whether itself, such as
Fruit is not to forward the TRILL data frames received；If it is, super route-bridge is unsealed to the TRILL data frames received
Dress, the corresponding MAC entries of primitive frame are inquired about in the MAC information of local maintenance, according to lookup result, TRILL data frames are entered
Row processing.
4. method according to claim 3, it is characterised in that other route-bridges in the TRILL network receive former
Beginning frame, during the corresponding MAC entries of primitive frame needed for do not find locally, is encapsulated as TRILL data frames by primitive frame and sends
For：
Other route-bridges in TRILL network are received after the primitive frame that local server host is sent, and inquire about local maintenance
MAC information, if finding the corresponding MAC entries of the primitive frame in MAC information, the primitive frame is encapsulated as TRILL numbers
According to frame and send；Otherwise, primitive frame is encapsulated as the TRILL data frames that Egress route-bridges are super route-bridge,
And send.
5. method according to claim 3, it is characterised in that described according to lookup result, at TRILL data frames
Manage and be：
If super route-bridge finds the corresponding MAC entries of primitive frame in the MAC information of local maintenance, and in primitive frame
Target MAC (Media Access Control) address is the MAC Address of local server host, then the primitive frame obtained decapsulation is sent to the local service
Device main frame；
If super route-bridge finds the corresponding MAC entries of primitive frame in the MAC information of local maintenance, but purpose MAC
Location is not the MAC Address of local server host, then is re-packaged into primitive frame routeing for the purpose of Egress route-bridges
The TRILL unicast data frames of bridge are simultaneously sent；
If super route-bridge does not inquire corresponding MAC entries according to primitive frame in the MAC information of local maintenance,
The primitive frame is re-packaged into TRILL multicast packets frame and sent, or the primitive frame is abandoned.
6. method according to claim 5, it is characterised in that primitive frame is re-packaged into by the super route-bridge
Egress route-bridges for purpose route-bridge TRILL unicast data frames and after sending, this method also includes：It is super
The MAC entries found are sent to the Ingress route-bridges of the TRILL data frames by route-bridge, and by the TRILL data frames
Ingress route-bridges be recorded as the subscribers of the MAC entries.
7. the method according to any one of claim 1 to 6, it is characterised in that this method also includes：
The corresponding relation of the local IP address received and MAC Address is sent to super route-bridge and carried out by other route-bridges
Safeguard, and the corresponding relation of the maintenance IP address related to itself and MAC Address.
8. method according to claim 7, it is characterised in that other described route-bridges are by the local IP address received
Being sent to super route-bridge progress maintenance with the corresponding relation of MAC Address is：
Other route-bridges are received after address resolution protocol (ARP) message that local server host is sent, if the ARP is reported
Text is gratuitous ARP packet, and other route-bridges prevent the gratuitous ARP packet from broadcasting and reported to the ARP in whole TRILL network
Text parsing, according to the local IP address of the corresponding relation of IP address therein and MAC Address renewal and the mapping relations of MAC Address
Table, and the corresponding relation of the IP address and MAC Address is advertised to super route-bridge；Super route-bridge is according to the IP received
Address and the corresponding relation of MAC Address, are updated to the IP address and the mapping table of MAC Address locally preserved.
9. method according to claim 8, it is characterised in that this method also includes：
If it is ARP request message, other routing networks that other route-bridges, which receive the ARP messages that local server host sends,
Bridge prevents the ARP request message from being broadcasted in whole TRILL network, and searches reflecting for the IP address that locally preserves and MAC Address
Penetrate relation table；If according to the IP address carried in ARP request message, corresponding MAC Address is found in the mapping table,
Then the MAC Address is sent to the server host by other route-bridges by arp reply message；Conversely, other routing networks
Bridge asks the corresponding MAC Address of the IP address to super route-bridge, and by arp reply message, super route-bridge is returned
Multiple MAC Address is sent to the server host.
10. method according to claim 7, it is characterised in that the IP address related to other described route-bridges
Include with the corresponding relation of MAC Address：
The IP address of the local server host of other route-bridges and the corresponding relation of MAC Address, and with local service
The IP address and the corresponding relation of MAC Address of the far-end server main frame of device main-machine communication.
11. the system that a kind of route-bridge safeguards information, it is characterised in that the system includes：Other route-bridges and super road
By bridge；Wherein,
Other route-bridges, are safeguarded for the MAC information of local server host to be sent into super route-bridge, and
Safeguard the MAC information of the server host related to itself；
Super route-bridge, for safeguarding MAC information in whole TRILL network.
12. system according to claim 11, it is characterised in that
Other route-bridges are additionally operable to, and receive primitive frame, during the corresponding MAC entries of the primitive frame needed for do not find locally,
Primitive frame is encapsulated as into TRILL data frames to send；
Super route-bridge is additionally operable to, and judges that the Egress route-bridges in the TRILL heads of the TRILL data frames received are
Itself, if it is not, the TRILL data frames that forwarding is received；If it is, being decapsulated to the TRILL data frames received, at this
The corresponding MAC entries of inquiry primitive frame, according to lookup result, are handled TRILL data frames in the MAC information that ground is safeguarded.
13. the system according to claim 11 or 12, it is characterised in that
Other described route-bridges are additionally operable to, and the corresponding relation of the local IP address received and MAC Address are sent to super
Route-bridge is safeguarded, and the corresponding relation of the maintenance IP address related to itself and MAC Address；
The super route-bridge is additionally operable to, and the IP address and the corresponding relation of MAC Address received is safeguarded.
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| CN107948039B (en) * | 2017-11-17 | 2020-05-29 | 新华三信息安全技术有限公司 | Address table item processing method and device |
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