CN105357127B - Carry processing system and method that bulletin negotiates the LLDP messages of TLV - Google Patents
Carry processing system and method that bulletin negotiates the LLDP messages of TLV Download PDFInfo
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- CN105357127B CN105357127B CN201510953252.0A CN201510953252A CN105357127B CN 105357127 B CN105357127 B CN 105357127B CN 201510953252 A CN201510953252 A CN 201510953252A CN 105357127 B CN105357127 B CN 105357127B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/256—Routing or path finding in ATM switching fabrics
- H04L49/258—Grouping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The present invention relates to a kind of processing systems and method for carrying bulletin and negotiating the LLDP messages of TLV, wherein system includes configuration module, and to configure the identifiable all TLV lists of equipment, the TLV lists received are wished in configuration, the transmission list of each port of configuration transmittable TLV lists and each port of configuration；Processing module, the LLDP to receive neighbor device transmission, which is carried, updates the transmittable TLV lists in the port when bulletin negotiates TLV；Package module encapsulates will announce all TLV in negotiation TLV and the port transmission list into LLDP messages；Sending module.The processing system and method for negotiating the LLDP messages of TLV using the carrying bulletin of this kind of structure, can flexibly configure the TLV lists for needing to receive, without going the configuration of change neighbor device by neighbor device administrator；Due to being not necessarily to the unwanted TLV information of sending device, reduces the length of message and equipment is used to store neighbor information and the memory applied, there is wider application range.
Description
Technical field
The present invention relates to fields of communication technology more particularly to Ethernet control field of communication technology, in particular to one kind to take
Negotiate the processing system and method for the LLDP messages of TLV with bulletin.
Background technology
Currently, the type of the network equipment is increasingly various and intricate, the equipment in order to make different vendor of respective configuration
Respective system and configuration information can be mutually found and interacted in a network, need the information intercourse platform there are one standard.
LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) is exactly in this context
Generate, the link layer that it provides a kind of standard finds mode, can by the unique ability of local device, management address, set
The information such as standby mark, interface identifier are organized into different TLV (Type/Lengh/Value, type/length/value), and are encapsulated in
It is distributed in LLDPDU (Link Layer Discovery Protocol DataUnit, Link Layer Discovery Protocol data cell)
The direct-connected neighbours with oneself, neighbours receive after these information by its with standard mib (Management Information Base,
Management information bank) form save, so that the communication conditions of link are inquired and judged to Network Management System.
The TLV of many standards and TLV of extension defined in LLDP consensus standards.The privately owned TLV that many manufacturers define
It is continuously increased in the application.
Invention content
The purpose of the present invention is overcoming the above-mentioned prior art, providing one kind can realize that flexible acquisition is adjacent
Placed in the middle specific information, without removing configuration neighbor device by administrator while solving to reduce the content-length of message, do not send
The TLV of neighbours' None- identified, the carrying bulletin for reducing the memory applied for storing neighbor information negotiate the LLDP messages of TLV
Processing system and method.
To achieve the goals above, carrying bulletin of the invention negotiates the processing system and method tool of the LLDP messages of TLV
There is following composition：
Carrying bulletin negotiates the processing system of the LLDP messages of TLV, is mainly characterized by, the system includes：
Configuration module, to configure the identifiable all TLV lists of equipment, the TLV lists received are wished in configuration, configuration is each
A port can be transmitted TLV lists and configure the transmission list of each port；
Processing module, the LLDP to receive neighbor device transmission updates the port when carrying bulletin negotiation TLV to be sent out
Send TLV lists；
Package module encapsulates will announce all TLV in negotiation TLV and the port transmission list into LLDP messages；
Sending module, to send the LLDP messages that encapsulation obtains.
The invention further relates to a kind of processing methods for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that described
Method includes the following steps：
(1) the identifiable all TLV lists of equipment are configured according to default value, the TLV lists received are wished in configuration, configuration is each
A port can be transmitted TLV lists and configure the transmission list of each port；
(2) negotiate TLV according to the identifiable all TLV list configurations bulletins configured；
(3) the transmittable TLV row in the port are updated when bulletin negotiates TLV when the LLDP for receiving neighbor device transmission is carried
Table；
(4) all TLV in bulletin negotiation TLV and the port transmission list are added to LLDP messages and are sent to neighbours and set
It is standby.
Preferably, described negotiate TLV according to the identifiable all TLV list configurations bulletins configured, including it is following
Step：
All identifiable TLV types values are added in TLVTypeList fields by (2-1)；
It is corresponding value that configuration sub-type field, which is arranged, according to system in (2-2).
More preferably, described that configuration sub-type field is arranged for corresponding value, specially according to system：
Meaning representated by following each value configures the value of sub-type field：
When value is 1, indicate to receive TLV Type in TLVTypeList for hope；
When value is 2, indicate that in TLVTypeList be identifiable TLV Type；
When value is 3, indicate to be 802.1 Organizationally Specific TLVs of IEEE in TLVTypeList
In subType；
When value is 4, indicate to be 802.3 Organizationally Specific TLVs of IEEE in TLVTypeList
In subType.
Further, TLV lists can be transmitted in the update port, include the following steps：
(3-1) judges that the bulletin received negotiates whether the carrying subtype value of TLV is 1, if it is, continuing step
(3-2) continues step (3-4) if value is 2,3 or 4；
(3-2) empties the transmission list of the port, then proceedes to step (3-3)；
In the transmission list of (3-3) the content update in TLVTypeList fields to the port, step is then proceeded to
(4)；
(3-4) empties the transmittable list of the port, then proceedes to step (3-5)；
(3-5) is added to the content in TLVTypeList fields in the transmittable list of the port.
Preferably, described negotiate bulletin all TLV in TLV and the port transmission list to be added to LLDP messages concurrent
It send to neighbor device, includes the following steps：
Bulletin is negotiated all TLV in TLV and the port transmission list and is packaged into LLDP messages by (4-1)；
(4-2) judges whether to trigger at least one in following event：LLDP messages are sent for the first time, new neighbor is added and again
The list for wishing to receive TLV is set, if it is, continuing step (4-3), otherwise terminates to exit；
(4-3) sends the LLDP messages of encapsulation to neighbor device.
Processing system and method that the carrying bulletin in the invention negotiates the LLDP messages of TLV are used, have has as follows
Beneficial effect：
(1) it when device value needs to obtain neighbours' specifically some information, sends and carries the LLDP messages that bulletin negotiates TLV
To neighbor device, neighbor device negotiates the TLVTypeList fields of TLV according to bulletin, and transmission only carries bulletin and negotiates public affairs in TLV
The LLDP messages of the TLV of announcement；The TLV lists for needing to receive can be flexibly configured, go to change without passing through neighbor device administrator
The configuration of neighbor device；Due to being not necessarily to the unwanted TLV information of sending device, reduces the length of message and equipment is used to deposit
The memory for storing up neighbor information and applying；
(2) simultaneously, equipment and neighbor device can announce the respective TLV that can be identified, extraction both ends are all identifiable
TLV does not carry the TLV of neighbours' None- identified in the LLDP messages of transmission, reduces the length for sending message, reduces for storing neighbour
The memory for occupying information and applying has wider application range.
Description of the drawings
Fig. 1 is that the structure for carrying bulletin negotiation TLV in the processing method for announcing the LLDP messages for negotiating TLV of the invention is shown
It is intended to.
Fig. 2 is the flow chart for the processing method that the carrying bulletin of the present invention negotiates the LLDP messages of TLV.
Specific implementation mode
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
The present invention provides a kind of processing methods for carrying bulletin and negotiating the LLDP messages of TLV：
Bulletin negotiation TLV is pre-configured with to add all TLV types values that can be identified according to the TLV that equipment can identify
It is added in TLVTypeList fields, and it is corresponding value that sub-type field, which is arranged, sends LLDP messages for the first time or have new neighbor
When addition, bulletin is negotiated into TLV and is added to LLDP messages；When equipment wish to carry in the LLDP messages that neighbours send over it is specific
Washability TLV, these specific TLV types values are added in TLVTypeList fields, and be arranged sub-type field be pair
The bulletin negotiation TLV when having the TLV lists that new neighbor is added or modification hope receives, is added to LLDP messages by the value answered；
A kind of processing equipment for carrying bulletin and negotiating the LLDP messages of TLV is additionally provided simultaneously：
Configuration module：For configuring the identifiable all TLV lists of equipment；The TLV lists received are wished in configuration；Configuration is each
TLV lists can be transmitted in a port；Configure each port transmission list；
Processing module：When receiving the LLDP that sends of neighbor device and carrying bulletin and negotiate TLV, for compare this equipment and
The identifiable TLV of neighbor device, and update the port and send TLV lists；
Package module：It is encapsulated into LLDP messages for bulletin to be negotiated all TLV in TLV and the port transmission list
In；
Sending module：The LLDP messages obtained for sending encapsulation.
The processing method for the LLDP messages that the carrying bulletin of the present invention negotiates TLV specifically includes following steps：
(1) the identifiable all TLV lists of equipment are configured according to default value, the TLV lists received are wished in configuration, configuration is each
A port can be transmitted TLV lists and configure the transmission list of each port；
(2) negotiate TLV according to the identifiable all TLV list configurations bulletins configured；
(3) the transmittable TLV row in the port are updated when bulletin negotiates TLV when the LLDP for receiving neighbor device transmission is carried
Table；
(4) all TLV in bulletin negotiation TLV and the port transmission list are added to LLDP messages and are sent to neighbours and set
It is standby.
It is described to be announced according to the identifiable all TLV list configurations configured in a kind of preferable embodiment
Negotiate TLV, includes the following steps：
All identifiable TLV types values are added in TLVTypeList fields by (2-1)；
It is corresponding value that configuration sub-type field, which is arranged, according to system in (2-2).
It is described that configuration sub-type field is arranged as corresponding value according to system in a kind of more preferably embodiment, have
Body is：
Meaning representated by following each value configures the value of sub-type field：
When value is 1, indicate to receive TLV Type in TLVTypeList for hope；
When value is 2, indicate that in TLVTypeList be identifiable TLV Type；
When value is 3, indicate to be 802.1 Organizationally Specific TLVs of IEEE in TLVTypeList
In subType；
When value is 4, indicate to be 802.3 Organizationally Specific TLVs of IEEE in TLVTypeList
In subType.
In a kind of further embodiment, TLV lists, including following step can be transmitted in the update port
Suddenly：
(3-1) judges that the bulletin received negotiates whether the carrying subtype value of TLV is 1, if it is, continuing step
(3-2) continues step (3-4) if value is 2,3 or 4；
(3-2) empties the transmission list of the port, then proceedes to step (3-3)；
In the transmission list of (3-3) the content update in TLVTypeList fields to the port, step is then proceeded to
(4)；
(3-4) empties the transmittable list of the port, then proceedes to step (3-5)；
(3-5) is added to the content in TLVTypeList fields in the transmittable list of the port.
It is described to add all TLV in bulletin negotiation TLV and the port transmission list in a kind of preferable embodiment
Enter to LLDP messages and be sent to neighbor device, includes the following steps：
Bulletin is negotiated all TLV in TLV and the port transmission list and is packaged into LLDP messages by (4-1)；
(4-2) judges whether to trigger at least one in following event：LLDP messages are sent for the first time, new neighbor is added and again
The list for wishing to receive TLV is set, if it is, continuing step (4-3), otherwise terminates to exit；
(4-3) sends the LLDP messages of encapsulation to neighbor device.
The solution thinking that the present invention is implemented is as follows：
(1) the identifiable all TLV lists of equipment are configured according to default value；The TLV lists received are wished in configuration；Configuration is each
TLV lists can be transmitted in a port；Configure each port transmission list.
Bulletin is negotiated：Sub-type field, TLVTypeList fields；
Wherein, sub-type field is for indicating TLVTypeList fields；
TLVTypeList fields are the set of a TLV type.The value of each TLV types occupies a byte.
Multiple bulletins can be carried in one LLDP message simultaneously and negotiate TLV, but each bulletin negotiates the subtype of TLV not
It can be the same.
(2) according to the identifiable TLV lists configured, bulletin is configured according to table 1 and negotiates TLV, can be identified all
TLV types values be added in TLVTypeList fields, and be arranged sub-type field be corresponding value：
2:Indicate that each byte of TLVTypeList fields is a TLV Type
3：Indicate that each byte of TLVTypeList fields is 802.1 Organizationally Specific of IEEE
SubType in TLVs
4：Indicate that each byte of TLVTypeList fields is 802.3 Organizationally Specific of IEEE
SubType in TLVs
(3) when following event triggers：
LLDP messages are sent for the first time, new neighbor is added or recognizable TLV lists variation；
Bulletin is negotiated into TLV and is added to LLDP messages, is sent to neighbor device；
When equipment only needs to receive some specific TLV, equipment these TLV is arranged in the TLV lists for wishing to receive, when
When following event triggering：
LLDP messages are sent for the first time, new neighbor is added or recognizable TLV lists variation；
Bulletin is configured according to table 1 and negotiates TLV, and subtype selects the 1 (TLV that instruction TLVTypeList fields receive for hope
List, each byte are a TLV Type), it is desirable to the TLV in the TLV lists of reception is filled into TLVTypeList fields.If
It is standby that the bulletin configured negotiation TLV is encapsulated into LLDP messages.
Table 1
| Value | Explanation |
| 1 | It indicates to receive TLV Type in TLVTypeList for hope |
| 2 | Indicate that in TLVTypeList be identifiable TLV Type |
| 3 | It indicates in TLVTypeList as the subType in 802.1 Organizationally Specific TLVs of IEEE |
| 4 | It indicates in TLVTypeList as the subType in 802.3 Organizationally Specific TLVs of IEEE |
| 5-255 | It is not used |
(4) when the carrying bulletin for receiving neighbours' transmission negotiates TLV：
If 1, carrying the bulletin that subtype is 1 negotiates TLV, the transmission list of the port is emptied；If carrying subclass
The bulletin that type is 2,3 or 4 negotiates TLV, then empties the transmittable list of the port.
2, it parses each bulletin and negotiates TLV, the subtype in TLV is negotiated according to bulletin to update corresponding list：
When subtype is 1, in the transmission list the content update in TLVTypeList fields to the port；
When subtype is 2,3 or 4, the content in TLVTypeList fields is added to the transmittable row of the port
In table；
After negotiating with neighbours, when sending LLDP messages, the TLV in transmission list is only carried.
When there is new neighbor addition, configuration is reinitialized for the neighbours.
Processing system and method that the carrying bulletin in the invention negotiates the LLDP messages of TLV are used, have has as follows
Beneficial effect：
(1) it when device value needs to obtain neighbours' specifically some information, sends and carries the LLDP messages that bulletin negotiates TLV
To neighbor device, neighbor device negotiates the TLVTypeList fields of TLV according to bulletin, and transmission only carries bulletin and negotiates public affairs in TLV
The LLDP messages of the TLV of announcement；The TLV lists for needing to receive can be flexibly configured, go to change without passing through neighbor device administrator
The configuration of neighbor device；Due to being not necessarily to the unwanted TLV information of sending device, reduces the length of message and equipment is used to deposit
The memory for storing up neighbor information and applying；
(2) simultaneously, equipment and neighbor device can announce the respective TLV that can be identified, extraction both ends are all identifiable
TLV does not carry the TLV of neighbours' None- identified in the LLDP messages of transmission, reduces the length for sending message, reduces for storing neighbour
The memory for occupying information and applying has wider application range.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (6)
1. a kind of processing system for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that the system includes：
Configuration module, to configure the identifiable all TLV lists of equipment, the TLV lists received are wished in configuration, each end of configuration
Mouth can be transmitted TLV lists and configure the transmission list of each port；
Processing module, the LLDP to receive neighbor device transmission carry update when bulletin negotiates TLV and receive LLDP messages
Port TLV lists can be transmitted；
Package module, to bulletin is negotiated into TLV and receive all TLV in the port transmission lists of LLDP messages encapsulate to
In LLDP messages；
Sending module, to send the LLDP messages that encapsulation obtains；
The bulletin negotiates TLV and refers to the TLV that bulletin consulting device supports TLV type of capability collection.
2. a kind of processing method for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that the method includes following step
Suddenly：
(1) the identifiable all TLV lists of equipment are configured according to default value, the TLV lists received are wished in configuration, each end of configuration
Mouth can be transmitted TLV lists and configure the transmission list of each port；
(2) negotiate TLV according to the identifiable all TLV list configurations bulletins configured；
(3) when the LLDP for receiving neighbor device transmission carry update when bulletin negotiates TLV receive the ports of LLDP messages can
Send TLV lists；
(4) bulletin negotiated into TLV and receives all TLV in the port transmission lists of LLDP messages to be added to LLDP messages concurrent
It send to neighbor device；
The bulletin negotiates TLV and refers to the TLV that bulletin consulting device supports TLV type of capability collection.
3. the processing method according to claim 2 for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that described
TLV are negotiated according to the identifiable all TLV list configurations bulletin configured, include the following steps：
All identifiable TLV types values are added in TLVTypeList fields by (2-1)；
It is corresponding value that configuration sub-type field, which is arranged, according to system in (2-2).
4. the processing method according to claim 3 for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that described
According to system be arranged configuration sub-type field be corresponding value, specially：
Meaning representated by following each value configures the value of sub-type field：
When value is 1, indicate to receive TLV Type in TLVTypeList for hope；
When value is 2, indicate that in TLVTypeList be identifiable TLV Type；
When value is 3, indicate in TLVTypeList as in IEEE 802.1Organizationally Specific TLVs
subType；
When value is 4, indicate in TLVTypeList as in IEEE 802.3Organizationally Specific TLVs
subType。
5. the processing method according to claim 4 for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that described
Update receive the ports of LLDP messages TLV lists can be transmitted, include the following steps：
(3-1) judges that the bulletin received negotiates whether the carrying subtype value of TLV is 1, if it is, continue step (3-2),
If value is 2,3 or 4, continue step (3-4)；
(3-2) empties the transmission list of the port, then proceedes to step (3-3)；
In the transmission list of (3-3) the content update in TLVTypeList fields to the port, step (4) is then proceeded to；
(3-4) empties the transmittable list of the port, then proceedes to step (3-5)；
(3-5) is added to the content in TLVTypeList fields in the transmittable list of the port.
6. the processing method according to claim 2 for carrying bulletin and negotiating the LLDP messages of TLV, which is characterized in that described
Bulletin is negotiated into TLV and receives all TLV in the port transmission lists of LLDP messages be added to LLDP messages and be sent to
Neighbor device includes the following steps：
Bulletin is negotiated all TLV in TLV and the port transmission list and is packaged into LLDP messages by (4-1)；
(4-2) judges whether to trigger at least one in following event：LLDP messages are sent for the first time, new neighbor is added and resets
Wish that the list for receiving TLV otherwise terminates to exit if it is, continuing step (4-3)；
(4-3) sends the LLDP messages of encapsulation to neighbor device.
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| CN103236941A (en) * | 2013-04-03 | 2013-08-07 | 华为技术有限公司 | Link discovery method and device |
| CN103441983A (en) * | 2013-07-11 | 2013-12-11 | 盛科网络（苏州）有限公司 | Information protection method and device based on link layer discovery protocol |
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| CN104320347A (en) * | 2014-10-31 | 2015-01-28 | 杭州华三通信技术有限公司 | Method and device for initiatively updating LLDP |
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| US9054958B2 (en) * | 2012-04-04 | 2015-06-09 | Dell Products L.P. | System and method for reducing information loss in an aggregated information handling system |
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|---|---|---|---|---|
| CN103236941A (en) * | 2013-04-03 | 2013-08-07 | 华为技术有限公司 | Link discovery method and device |
| CN103441983A (en) * | 2013-07-11 | 2013-12-11 | 盛科网络（苏州）有限公司 | Information protection method and device based on link layer discovery protocol |
| CN103825813A (en) * | 2014-03-12 | 2014-05-28 | 杭州华三通信技术有限公司 | LLDP (Link Layer Discovery Protocol) message processing method and device |
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