CN103152261B - A kind of Link State Protocol Data Unit fragment message generates dissemination method and equipment - Google Patents
A kind of Link State Protocol Data Unit fragment message generates dissemination method and equipment Download PDFInfo
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- CN103152261B CN103152261B CN201310050225.3A CN201310050225A CN103152261B CN 103152261 B CN103152261 B CN 103152261B CN 201310050225 A CN201310050225 A CN 201310050225A CN 103152261 B CN103152261 B CN 103152261B
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Abstract
This application discloses a kind of Link State Protocol Data Unit fragment message and generate dissemination method, the method comprises: at the primary master control board of equipment in restarting process, master control board for subsequent use as current primary master control board according to the route information recalculated, and old primary master control board heavily open before TLV? the relation of ID and LSP burst number generates LSP fragment message, if the LSP fragment message generated heavily open with old primary master control board before this LSP fragment message compared with change, just send to neighbor device. Based on same invention design, the application also proposes a kind of equipment, after the old primary master control board of equipment has heavily opened, reduces the transmission of unnecessary LSP fragment message.
Description
Technical field
The application relates to communication technical field, generates dissemination method and equipment in particular to a kind of Link State Protocol Data Unit fragment message.
Background technology
In order to improve the reliability of network, we adopt polylith master control board to carry out the mode backed up. When primary main control board occurs fault, master control board for subsequent use takes over its work, thus ensures that intermediate system is not influenced to intermediate system (IntermediateSystem-to-IntermediateSystem, IS-IS) route agreement.
The high-reliable backup mode adopted in Intermediate System-Intermediate System, uninterrupted route (NonstopRouting, the NSR) mode of general employing and smooth restarting (GracefulRestart, GR) mode. In two kinds of modes, for the transmission of chain number state information, it also it is the transmission of link slip condition database (LinkStateDatabase, LSDB), it is transmit by sending Link State Protocol Data Unit (LinkStatePDU, LSP) message to neighbours. Every bar link status information, with the form of a type length value (TLV), is put in a LSP, and outwards sends. LSP message is identified by system mark (ID) number and burst number, and wherein No. ID, system is the ID of each IS-IS system, configures by user and ensures that each system is only; Burst scope 0-255. Owing to the size of each LSP message is by interface MTU (MaximumTransmissionUnit, MTU) limit, when entrained information exceedes interface MTU, then can generate a new LSP sheet, the part TLV exceeded is put in a new LSP, the different bursts of this system generation can be distinguished by burst number. When generating LSP, give tacit consent to the burst number used by little to generating greatly.
After old primary master control board has heavily opened, new primary master control board, namely the current primary master control board of equipment can regenerate LSP fragment message, although the information such as topology, route are change not, but owing to regenerating of route when recovering is sequentially different, it is possible to LSP residing for each route information TLV can be caused different. Determining newly-generated LSP fragment message like this, the LSP fragment message before heavily opening with old primary master control board is different, and sends LSP fragment message to neighbor device. And the neighbor device receiving this LSP fragment message also can think that this LSP fragment message changes, the route can thought in original LSP fragment message is not present in, and deletes; Again receiving other LSP fragment messages may cause again the route information deleted again to be added again, thus causes route to shake, and has increased the weight of the burden of neighbor device.
Summary of the invention
In view of this, the application provides a kind of Link State Protocol Data Unit fragment message to generate dissemination method and equipment, after the old primary master control board of equipment has heavily opened, reduces the transmission of unnecessary LSP fragment message.
For solving the problems of the technologies described above, the technical scheme of the present invention is achieved in that
A kind of LSP fragment message generates dissemination method, is applied to operation Intermediate System-Intermediate System, and configures in the network of high-reliable backup mode, comprising:
In the primary master control board restarting process of equipment in the network, master control board for subsequent use is as current primary master control board, obtain TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV, and according to the route information recalculated, and the TLV obtained, and the corresponding relation generation LSP fragment message of TLVID and the LSP burst number of each TLV;
When the old primary master control board of described equipment has heavily opened, described current primary master control board determines arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change, if, upgrading the refreshing time of this LSP fragment message, increased by the sequence number of this LSP fragment message, send gives each neighbor device; Otherwise, the refreshing time before being recovered by this LSP fragment message is as the refreshing time of this LSP fragment message.
A kind of equipment, is applied to operation Intermediate System-Intermediate System, and configures in the network of high-reliable backup mode, and this equipment comprises primary master control board and master control board for subsequent use, and this equipment comprises: heavily open unit, acquiring unit, generation unit, determining unit and processing unit;
Described heavy open unit, for heavily opening the primary master control board of this equipment;
Described acquiring unit, heavy opens in the process of primary master control board that unit heavily opens this equipment for described, when the master control board for subsequent use of this equipment is as current primary master control board, obtains TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV;
Described generation unit, for the route information that basis recalculates, and the TLV that described acquiring unit obtains, and the corresponding relation generation LSP fragment message of TLVID and the LSP burst number of each TLV;
Described determining unit, described heavy open unit heavily open old primary master control board complete time, it is determined that the current arbitrary LSP fragment message generated, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change;
Described processing unit, when described determining unit determines that described LSP fragment message changes before and after old primary master control board heavily opens, upgrades the refreshing time of this LSP fragment message, is increased by the sequence number of this LSP fragment message, and send is to each neighbor device; When described determining unit determines that described LSP fragment message is unchanged before and after old primary master control board heavily opens, refreshing time as the refreshing time of this LSP fragment message before this LSP fragment message is recovered.
In sum, the application by the primary master control board of equipment in restarting process, master control board for subsequent use as current primary master control board according to the route information recalculated, and old primary master control board heavily open before TLVID and LSP burst number relation generate LSP fragment message, if generate LSP fragment message heavily open with old primary master control board before this LSP fragment message compared with change, just send to neighbor device, after the old primary master control board of equipment has heavily opened, reduce the transmission of unnecessary LSP fragment message.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention one, LSP fragment message generates dissemination method schematic flow sheet;
Fig. 2 is that in the embodiment of the present invention two, LSP fragment message generates dissemination method schematic flow sheet;
Fig. 3 is that in the embodiment of the present invention three, LSP fragment message generates dissemination method schematic flow sheet;
Fig. 4 is the device structure schematic diagram being applied to above-mentioned technology in the specific embodiment of the invention.
Embodiment
For making the object of the present invention, technical scheme and advantage clearly understand, develop simultaneously embodiment referring to accompanying drawing, scheme of the present invention is described in further detail.
The embodiment of the present invention proposes a kind of LSP fragment message and generates dissemination method, be applied to operation Intermediate System-Intermediate System, and configure in the network of high-reliable backup mode. The primary master control board of equipment in the network is in restarting process, master control board for subsequent use as current primary master control board according to the route information recalculated, and old primary master control board heavily open before TLVID and LSP burst number relation generate LSP fragment message, if the LSP fragment message generated heavily open with old primary master control board before this LSP fragment message compared with change, just send to neighbor device. After the old primary master control board of equipment has heavily opened, reduce the transmission of unnecessary LSP fragment message.
Embodiment one
See Fig. 1, Fig. 1 be in the embodiment of the present invention one LSP fragment message generate dissemination method schematic flow sheet. Concrete steps are:
Step 101, the primary master control board of equipment in the network is in restarting process, and the master control board for subsequent use of this equipment, as current primary master control board, obtains TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV.
When the primary master control board fault of equipment, or when needing to upgrade, heavily opening primary master control board, in primary master control board restarting process, the master control board for subsequent use of equipment completes the recovery of link and regenerating of route as the primary master control board of current equipment.
In order to prevent same TLV before and after old primary master control board heavily opens in different LSP fragment messages in the present embodiment, it is thus desirable to obtain the relation that old primary master control board heavily opens front TLVID and LSP burst number, namely which TLV is in which LSP fragment message.
The TLV that the current primary master control board of this equipment is sent in the LSP fragment message of this equipment according to neighbor device re-starts router-level topology, and according to the TLV that the old primary master control board of this equipment generates before the restart, and the relation of TLVID and LSP burst number regenerates LSP fragment message.
When obtaining the relation of TLVID and LSP burst number, some TLV does not need to obtain, such as, address, the region TLV, the description agreement type that describe the region attribute that IS-IS system is supported are supported that the agreement support TLV of attribute, many topology TLV, these TLV of the many topological attributes of description can only be placed in the LSP fragment message that LSP burst number is 0; Open System Interconnection (the OpenSystemInterconnection of certification information is described, OSI) certification TLV and IP certification TLV, these TLV need to be filled in all LSP fragment messages, therefore can not obtain the corresponding relation of TLVID and LSP burst number.
Step 102, the current primary master control board of this equipment is according to the route information recalculated, and the TLV obtained, and the corresponding relation of TLVID and the LSP burst number of each TLV generates LSP fragment message.
Described when the master control board for subsequent use of equipment generates arbitrary LSP fragment message as current primary master control board, by the first preset rules by the TLV order arrangement of same type, by the 2nd preset rules by many articles of TLV order arrangements of same type. The first preset rules and the 2nd preset rules user wherein can configure voluntarily according to practical application, as long as fixing in whole service ISIS network, ensure putting in order unanimously of TLV in each bar LSP fragment message.
The LSP fragment message that generates like this is if the LSP fragment message that do not affect of the route information recalculated, do not change compared with the LSP fragment message that the LSP fragment message then regenerated generates before heavily opening with old primary master control board, ensure that the constant of TLV position.
Step 103, when the old primary master control board of this equipment has heavily opened, the current primary master control board of this equipment determines arbitrary LSP fragment message of current generation, before heavily opening with old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change, if it does, perform step 104; Otherwise, perform step 105.
In this step, current primary master control board determines arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change, the value of the School Affairs of arbitrary LSP fragment message of current generation can be determined by current primary master control board, before heavily opening with described old primary master control board, and whether the value of the School Affairs of the LSP fragment message of identical LSP burst number compare identical.
The School Affairs that older primary master control board heavily opens the same LSP fragment message in front and back when generating LSP fragment message, all can generate a School Affairs, as long as can determine whether LSP fragment message changes.
Step 104, the refreshing time of this LSP fragment message of this renewal and renovation of equipment, increases the sequence number of this LSP fragment message, and send gives each neighbor device.
When this LSP fragment message changes, it is necessary to send this LSP fragment message to neighbor device, and increase the sequence number of this LSP fragment message, to notify neighbor device.
When each neighbor device receives this LSP fragment message, process according to the content of this LSP fragment message.
Step 105, the current primary master control board of this equipment this LSP fragment message is recovered before refreshing time as refreshing time of this LSP fragment message.
When this LSP fragment message is unchanged, it is not necessary to send this LSP fragment message to neighbor device, before only need to heavily being opened by old primary master control board, the refreshing time of this LSP fragment message is as the refreshing time of this LSP fragment message current.
Not only TLV is added to primary master control board heavily open before identical LSP burst number LSP fragment message in, TLV type in same LSP fragment message is identical, and the not identical rule ordering arrangement by setting in advance of type, it is determined that the position of the unchanged TLV of information is constant. Do not need the unchanged LSP fragment message of link status information like this to send to neighbor device, decrease the transmission of LSP fragment message.
And neighbor device also can greatly reduce the reception of LSP fragment message, can not change due to link status information, it is only that TLV position changes and adds route after cancelling route, causes link to shake, thus increased the weight of the burden of neighbours.
Embodiment two
When the high-reliable backup mode of configuration in the network running IS-IS agreement is NSR mode, all link status informations can be backuped to master control board for subsequent use by the primary master control board of equipment, in old primary master control board restarting process, current primary master control board completes the recovery of link and regenerating of route according to the link status information backed up again.
Before the primary master control board of equipment heavily opens, the master control board for subsequent use of equipment receives the TLV of described primary master control board backup, and the corresponding relation of TLVID and the LSP burst number of each TLV, and the refreshing time of LSP fragment message and School Affairs, and stores.
See the generation dissemination method schematic flow sheet that Fig. 2, Fig. 2 are LSP fragment message in the embodiment of the present invention two. Concrete steps are:
Step 201, in the primary master control board restarting process of equipment, master control board for subsequent use, as current primary master control board, obtains the TLV of local backup, and the corresponding relation of TLVID and the LSP burst number of each TLV.
Step 202, the current primary master control board of this equipment is according to the route information recalculated, and the TLV obtained, and the corresponding relation of TLVID and the LSP burst number of each TLV generates LSP fragment message.
Step 203, when the old primary master control board of this equipment has heavily opened, current primary master control board determines the School Affairs of arbitrary LSP fragment message of current generation, before heavily opening with local backup, old primary master control board, and whether the School Affairs of the LSP fragment message of identical LSP burst number compare identical, if it does, perform step 204; Otherwise, perform step 205.
Step 204, the refreshing time of this LSP fragment message of this renewal and renovation of equipment, increases the sequence number of this LSP fragment message, and send gives each neighbor device.
Step 205, the current primary master control board of this equipment using the refreshing time of this LSP fragment message of local backup as this LSP fragment message current refreshing time.
Embodiment three
If the high-reliable backup mode running configuration in the network of IS-IS agreement is GR mode, the current primary master control board of this equipment obtained by neighbor device before link status information, then complete the recovery of link and regenerating of route according to the link status information that gets.
See the generation dissemination method schematic flow sheet that Fig. 3, Fig. 3 are LSP fragment message in the embodiment of the present invention three. Concrete steps are:
Step 301, in the primary master control board restarting process of equipment, master control board for subsequent use is as current primary master control board, receive the LSP fragment message that neighbor device sends, TLV is obtained from the LSP fragment message received, and the corresponding relation of TLVID and the LSP burst number of each TLV, and obtain refreshing time and the School Affairs that each LSP fragment message carries.
When LSP fragment message carries the refreshing time, it is possible in being carried in LSP fragment message by this refreshing time digestion time (HoldTime) field, and the calculating of School Affairs can not be affected.
Step 302, the current primary master control board of this equipment is according to the route information recalculated, and the TLV obtained, and the corresponding relation of TLVID and the LSP burst number of each TLV generates LSP fragment message.
Step 303, whether, when the old primary master control board of this equipment has heavily opened, current primary master control board determines the School Affairs of arbitrary LSP fragment message of current generation, identical compared with the School Affairs obtained in the LSP fragment message from identical LSP burst number, if it does, perform step 304; Otherwise, perform step 305.
Step 304, the refreshing time of this LSP fragment message of this renewal and renovation of equipment, increases the sequence number of this LSP fragment message, and send gives each neighbor device.
Step 305, the current primary master control board of this equipment using refreshing time of this LSP fragment message of obtaining as this LSP fragment message current refreshing time.
Based on same invention design in the specific embodiment of the invention, also proposing a kind of equipment, be applied to operation Intermediate System-Intermediate System, and configure in the network of high-reliable backup mode, this equipment comprises primary master control board and master control board for subsequent use. It it is the device structure schematic diagram being applied to above-mentioned technology in the specific embodiment of the invention see Fig. 4, Fig. 4. This equipment comprises: heavily opens unit 401, acquiring unit 402, generate unit 403, determining unit 404 and processing unit 405.
Heavily open unit 401, for heavily opening the primary master control board of this equipment.
Acquiring unit 402, heavily opens in the process of primary master control board of this equipment for heavily opening unit 401, when the master control board for subsequent use of this equipment is as current primary master control board, obtains TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV.
Generate unit 403, for the route information that basis recalculates, and the TLV that acquiring unit 402 obtains, and the corresponding relation generation LSP fragment message of TLVID and the LSP burst number of each TLV.
Determining unit 404, heavily open unit 401 heavily open old primary master control board complete time, it is determined that the current arbitrary LSP fragment message generated, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change.
Processing unit 405, when determining unit 404 determines that described LSP fragment message changes before and after old primary master control board heavily opens, upgrades the refreshing time of this LSP fragment message, is increased by the sequence number of this LSP fragment message, and send is to each neighbor device; When determining unit 404 determines that described LSP fragment message is unchanged before and after old primary master control board heavily opens, refreshing time as the refreshing time of this LSP fragment message before this LSP fragment message is recovered.
Goodly,
Generate unit 403, when becoming arbitrary LSP fragment message, by the first preset rules by the TLV order arrangement of same type, by the 2nd preset rules by many articles of TLV order arrangements of same type.
Goodly,
Acquiring unit 402, for the how topological TLV describing address, the region TLV of the region attribute that IS-IS system is supported, the agreement support TLV describing agreement type support attribute, description many topologys attribute, and the OSI certification TLV and IP certification TLV of certification information are described, do not obtain the relation of TLVID and the LSP burst number of corresponding TLV.
Goodly,
Determining unit 404, for determining the value of the School Affairs of arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the value of the School Affairs of the LSP fragment message of identical LSP burst number compare identical.
Goodly, this equipment comprises further: storage unit 406.
Storage unit 406, for when described high-reliable backup mode is NSR mode, before heavily opening the primary master control board that unit 401 heavily opens this equipment, receives the TLV of described primary master control board backup, and the corresponding relation of TLVID and the LSP burst number of each TLV and store.
Acquiring unit 402, for the TLV backed up from storage unit 406, and the corresponding relation of TLVID and the LSP burst number of each TLV.
Goodly,
Storage unit 406, is further used for receiving the refreshing time of the LSP fragment message of master control board backup.
Processing unit 405, is further used for obtaining the refreshing time of this LSP fragment message that storage unit 406 backs up.
Goodly, this equipment comprises further: receive unit 407.
Receive unit 407, for when described high-reliable backup mode is GR mode, receiving the LSP fragment message that each neighbor device sends.
Acquiring unit 402, for resolving the LSP fragment message acquisition TLV receiving unit 407 and receiving, and the corresponding relation of TLVID and the LSP burst number of each TLV.
Goodly,
Processing unit 405, is further used for obtaining this LSP fragment message refreshing time receiving in the LSP fragment message of unit 407 reception and carrying.
The unit of above-described embodiment can be integrated in one, it is also possible to separation is disposed; A unit can be merged into, it is also possible to split into multiple subelement further.
In sum, in the specific embodiment of the invention by the primary master control board at equipment in restarting process, master control board for subsequent use as current primary master control board according to the route information recalculated, and old primary master control board heavily open before TLVID and LSP burst number relation generate LSP fragment message, if generate LSP fragment message heavily open with old primary master control board before this LSP fragment message compared with change, just send to neighbor device, after the old primary master control board of equipment has heavily opened, reduce the transmission of unnecessary LSP fragment message.
Give in a particular embodiment not only TLV is added to primary master control board heavily open before identical LSP burst number LSP fragment message in, TLV type in same LSP fragment message is identical, and the not identical rule ordering arrangement by setting in advance of type, it is determined that the position of the unchanged TLV of information is constant. Do not need the unchanged LSP fragment message of link status information like this to send to neighbor device, decrease the transmission of LSP fragment message.
And neighbor device also can greatly reduce the reception of LSP fragment message, can not change due to link status information, it is only that TLV position changes and adds route after cancelling route, causes link to shake, thus increased the weight of the burden of neighbours.
The above, be only the better embodiment of the present invention, be not intended to limit protection scope of the present invention. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. Link State Protocol Data Unit LSP fragment message generates a dissemination method, is applied to and runs intermediate system to intermediate system Intermediate System-Intermediate System, and configures in the network of high-reliable backup mode, it is characterised in that, comprising:
In the primary master control board restarting process of equipment in the network, the master control board for subsequent use of this equipment is as current primary master control board, obtain type length value TLV, and the TLV of each TLV identifies the corresponding relation of ID and LSP burst number, and according to the route information recalculated, and the TLV obtained, and the corresponding relation generation LSP fragment message of TLVID and the LSP burst number of each TLV;
When the old primary master control board of described equipment has heavily opened, the current primary master control board of described equipment determines arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change, if, upgrading the refreshing time of this LSP fragment message, increased by the sequence number of this LSP fragment message, send gives each neighbor device; Otherwise, the refreshing time before being recovered by this LSP fragment message is as the refreshing time of this LSP fragment message.
2. method according to claim 1, it is characterized in that, described method comprises further: when described master control board for subsequent use generates arbitrary LSP fragment message as current primary master control board, by the first preset rules by dissimilar TLV order arrangement, by the 2nd preset rules by many articles of TLV order arrangements of same type.
3. method according to claim 1, it is characterised in that, described method comprises further:
For the how topological TLV describing address, the region TLV of the region attribute that IS-IS system is supported, the agreement support TLV describing agreement type support attribute, description many topologys attribute, and the Open System Interconnection OSI certification TLV and Internet Protocol IP certification TLV of certification information are described, do not obtain the corresponding relation of TLVID and the LSP burst number of corresponding TLV.
4. method according to claim 1, it is characterised in that,
Described current primary master control board determines arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change, comprise: described current primary master control board determines the value of the School Affairs of arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the value of the School Affairs of the LSP fragment message of identical LSP burst number compare identical.
5. method according to claim 1-4 any one, it is characterised in that, when described high-reliable backup mode is uninterrupted route NSR mode, before the primary master control board of this equipment heavily opens, described method comprises further:
Described master control board for subsequent use receive described primary master control board backup TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV and store;
Described master control board for subsequent use is as current primary master control board, obtain TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV, comprising: master control board for subsequent use is as current primary master control board, obtain the TLV of local backup, and the corresponding relation of TLVID and the LSP burst number of each TLV.
6. method according to claim 5, it is characterised in that, before the primary master control board of this equipment heavily opens, described method comprises further: described master control board for subsequent use receives the refreshing time of the LSP fragment message of primary master control board backup;
The method of the refreshing time before the recovery of this LSP fragment message of described acquisition is: the refreshing time obtaining this LSP fragment message of local backup.
7. method according to claim 1-4 any one, it is characterised in that, when described high-reliable backup mode is smooth restarting GR mode, described master control board for subsequent use is as current primary master control board, obtain TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV, comprising:
Receive the LSP fragment message that each neighbor device sends, resolve the LSP fragment message received and obtain TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV.
8. method according to claim 7, it is characterised in that,
The method of the refreshing time before the recovery of this LSP fragment message of described acquisition is: when receiving each neighbor device transmission LSP fragment message, obtain in the LSP fragment message received the refreshing time of this LSP fragment message carried.
9. a Link State Protocol Data Unit LSP fragment message generates distribution apparatus, it is applied to and runs intermediate system to intermediate system Intermediate System-Intermediate System, and configure in the network of high-reliable backup mode, this equipment comprises primary master control board and master control board for subsequent use, it is characterized in that, this equipment comprises: heavily open unit, acquiring unit, generation unit, determining unit and processing unit;
Described heavy open unit, for heavily opening the primary master control board of this equipment;
Described acquiring unit, heavy open in the process of primary master control board that unit heavily opens this equipment for described, when the master control board for subsequent use of this equipment is as current primary master control board, obtain type length value TLV, and the TLV of each TLV identifies the corresponding relation of ID and LSP burst number;
Described generation unit, for the route information that basis recalculates, and the TLV that described acquiring unit obtains, and the corresponding relation generation LSP fragment message of TLVID and the LSP burst number of each TLV;
Described determining unit, described heavy open unit heavily open old primary master control board complete time, it is determined that the current arbitrary LSP fragment message generated, before heavily opening with described old primary master control board, and whether the LSP fragment message of identical LSP burst number compare and change;
Described processing unit, when described determining unit determines that described LSP fragment message changes before and after old primary master control board heavily opens, upgrades the refreshing time of this LSP fragment message, is increased by the sequence number of this LSP fragment message, and send is to each neighbor device; When described determining unit determines that described LSP fragment message is unchanged before and after old primary master control board heavily opens, refreshing time as the refreshing time of this LSP fragment message before this LSP fragment message is recovered.
10. equipment according to claim 9, it is characterised in that,
Described generation unit, when becoming arbitrary LSP fragment message, by the first preset rules by dissimilar TLV order arrangement, by the 2nd preset rules by many articles of TLV order arrangements of same type.
11. equipment according to claim 9, it is characterised in that,
Described acquiring unit, for the how topological TLV describing address, the region TLV of the region attribute that IS-IS system is supported, the agreement support TLV describing agreement type support attribute, description many topologys attribute, and the Open System Interconnection OSI certification TLV and IP certification TLV of certification information are described, do not obtain the relation of TLVID and the LSP burst number of corresponding TLV.
12. equipment according to claim 9, it is characterised in that,
Described determining unit, for determining the value of the School Affairs of arbitrary LSP fragment message of current generation, before heavily opening with described old primary master control board, and whether the value of the School Affairs of the LSP fragment message of identical LSP burst number compare identical.
13. equipment according to claim 9-12 any one, it is characterised in that, described equipment comprises further: storage unit;
Described storage unit, for when described high-reliable backup mode is uninterrupted route NSR mode, described heavy open the primary master control board that unit heavily opens this equipment before, receive described primary master control board backup TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV and store;
Described acquiring unit, for the TLV from described Storage unit backups, and the corresponding relation of TLVID and the LSP burst number of each TLV.
14. equipment according to claim 13, it is characterised in that,
Described storage unit, is further used for receiving the refreshing time of the LSP fragment message of primary master control board backup;
Described processing unit, is further used for obtaining the refreshing time of this LSP fragment message of described Storage unit backups.
15. equipment according to claim 9-12 any one, it is characterised in that, described equipment comprises further: receive unit;
Described reception unit, for when described high-reliable backup mode is smooth restarting GR mode, receiving the LSP fragment message that each neighbor device sends;
Described acquiring unit, the LSP fragment message received for resolving described reception unit obtains TLV, and the corresponding relation of TLVID and the LSP burst number of each TLV.
16. equipment according to claim 15, it is characterised in that,
Described processing unit, is further used for obtaining in the LSP fragment message of described reception unit reception this LSP fragment message carried and refreshes the time.
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| CN103973466B (en) * | 2013-01-25 | 2019-02-12 | 华为技术有限公司 | A kind of method and device waking up suspend mode link |
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| US7483387B2 (en) * | 2005-05-23 | 2009-01-27 | Cisco Technology, Inc. | Hierarchical label distribution for inter-area summarization of edge-device addresses |
| CN100553234C (en) * | 2007-07-06 | 2009-10-21 | 杭州华三通信技术有限公司 | A kind of routing device and smooth restarting method thereof |
| CN101394354B (en) * | 2008-10-17 | 2011-04-06 | 杭州华三通信技术有限公司 | Method for avoiding neighbourhood oscillation of intermediate system and an intermediate system |
| CN102143032B (en) * | 2010-02-02 | 2014-05-07 | 杭州华三通信技术有限公司 | Method for eliminating residual link state protocol data unit fragments and route equipment |
| CN102404189B (en) * | 2010-09-15 | 2014-05-21 | 杭州华三通信技术有限公司 | Main and standby switching method of device supporting multi-topology routing as well as master control board |
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