CN103532781A - Detecting method and device of forwarding accessibility of bidirectional tunnels - Google Patents
Detecting method and device of forwarding accessibility of bidirectional tunnels Download PDFInfo
- Publication number
- CN103532781A CN103532781A CN201310476646.2A CN201310476646A CN103532781A CN 103532781 A CN103532781 A CN 103532781A CN 201310476646 A CN201310476646 A CN 201310476646A CN 103532781 A CN103532781 A CN 103532781A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- label switching
- multiprotocol label
- request message
- router
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a detecting method and device of the forwarding accessibility of bidirectional tunnels. The detecting method comprises the steps that a first router executes LSP (Label Switched Path) Ping detection, and sends a multi-protocol label switching echo request message to a second router by an MPLS (Multi-Protocol Label Switching) label; the second router judges whether the received multi-protocol label switching echo request message adopts the bidirectional tunnels or not; if the multi-protocol label switching echo request message adopts the bidirectional tunnels, judging whether the corresponding second tunnel can be found or not; if the corresponding second tunnel is found, the second router presses the MPLS label of the second tunnel into the multi-protocol label switching echo reply message and forwards the multi-protocol label switching echo reply message to the first router by a path of the second tunnel; if the corresponding second tunnel is not found, the second router does not send the multi-protocol label switching echo reply message. The detecting method and device provided by the invention have the advantages that the LSP Ping detection is executed from single end, so that the forwarding accessibility of the bidirectional tunnels of MPLS-TE (Multi-Protocol Label Switching-Traffic Engineering) can be quickly and accurately detected.
Description
Technical field
The present invention relates to MPLS-TE bidirectional tunnel field, relate in particular to detection method and device that a kind of bidirectional tunnel forwards accessibility.
Background technology
MPLS-TE(Multi-Protocol Label Switching-Traffic Engineering, multiprotocol label switching-traffic engineering) combine multiprotocol label switching MPLS technology and traffic engineering TE, by foundation, arrive the LSP(Label Switched Path of specified path, label switched path) tunnel carries out resource reservation, make network traffics get around congested node, reach the object of balancing network flow.In MPLS-TE, MPLS-TE tunnel is comprised of one group of lsp tunnel.Two-way MPLS-TE tunnel comprises positive and negative two unidirectional MPLS-TE tunnels.
Referring to Fig. 1, the first router and the second router are set up MPLS-TE bidirectional tunnel, carry out LSP ping and detect in the first router the first router, detect the data retransmission accessibility of bidirectional tunnel.It is to adopt MPLS label to be forwarded to the second router by MPLS-TE tunnel that LSP ping detects multiprotocol label switching echo request (the MPLS Echo Request) message sending at the first router end, but the multiprotocol label switching return response message that the second router end is returned not necessarily adopts MPLS label to be forwarded back to the first router by corresponding MPLS-TE tunnel.If multiprotocol label switching return response (MPLS Echo Reply) message is to forward by route or other tunnels, the LSP ping meeting of detection is because wrong report appears in underlying cause: 1) tunnel of other from the second router to the first router breaks down on forward-path; 2) forward route and occurred fault.Therefore, from single-ended execution LSP Ping, detect MPLS-TE bidirectional tunnel and forward accessibility, have the possibility of wrong report.
Prior art can also adopt the LSP ping simultaneously also carrying out in the second router to detect, it is independently that two LSP Ping of the first router and the second router detect, and that is to say that to the detection of one group of bidirectional tunnel, at least need in terminal device, carry out respectively MPLS Ping detects.But all carry out LSP Ping from two ends, detect, user operates cumbersome, and still can not get rid of because multiprotocol label switching return response message forwards by route or other tunnels the LSP ping that returns to cause and detect wrong report.
Summary of the invention
In view of this, the object of this invention is to provide detection method and device that a kind of bidirectional tunnel forwards accessibility, it detects from single-ended execution LSP Ping, just can quick and precisely detect MPLS-TE bidirectional tunnel and forward accessibility.
For achieving the above object, the invention provides technical scheme as follows:
The invention provides the detection method that a kind of bidirectional tunnel forwards accessibility, be applied to configure the first router in the first tunnel and the second router in configuration the second tunnel, described the first tunnel and the second tunnel form one group of bidirectional tunnel.Described method comprises:
In the first router, carry out LSP Ping and detect, by MPLS label, to the second router, send multiprotocol label switching echo request message.
Whether the multiprotocol label switching echo request message that the second router judgement receives is bidirectional tunnel.
If multiprotocol label switching echo request message is bidirectional tunnel, can judgement find the second corresponding tunnel.
If find the second corresponding tunnel, the second router is pressed into the MPLS label in the second tunnel and the path by the second tunnel is forwarded to the first router by multiprotocol label switching return response message in multiprotocol label switching return response message.
If do not find the second corresponding tunnel, the second router does not send multiprotocol label switching return response message.
Further, the first router of the present invention is also filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission.
The multiprotocol label switching echo request message that the judgement of described the second router receives be whether bidirectional tunnel be that the ID whether the multiprotocol label switching echo request message that receives by the second router carries the second tunnel judges.
Further, the first router of the present invention is filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission and is:
Extended Tunnel id field corresponding in multiprotocol label switching echo request message is filled in the ID in the second tunnel or add the ID that TLV field is filled in the second tunnel in multiprotocol label switching echo request message.
Further, if the present invention's multiprotocol label switching echo request message is not bidirectional tunnel, the second router sends multiprotocol label switching return response message to the first router.
Further, can the second tunnel of correspondence that find of the present invention specifically comprise:
If the tunnel corresponding to ID in the second tunnel in multiprotocol label switching echo request message is bidirectional tunnel, be defined as finding the second corresponding tunnel.
If the tunnel that the ID in the second tunnel in multiprotocol label switching echo request message is corresponding is not bidirectional tunnel, be defined as not finding the second corresponding tunnel.
The present invention also provides a kind of checkout gear of bidirectional tunnel forwarding accessibility, is applied to respectively dispose two routers of one group of MPLS-TE bidirectional tunnel.Described device comprises:
Request message transmitting element, detects for carrying out LSP Ping, by MPLS label, to end-to-end router, sends multiprotocol label switching echo request message.
Bidirectional tunnel judging unit, for judging whether the multiprotocol label switching echo request message of reception is bidirectional tunnel.
Corresponding tunnel acquiring unit, for being bidirectional tunnel when multiprotocol label switching echo request message, can judgement find tunnel corresponding to opposite end.
Response message transmitting element, if for finding tunnel corresponding to opposite end, in multiprotocol label switching return response message, be pressed into the MPLS label in tunnel corresponding to opposite end and multiprotocol label switching return response message be forwarded to the router of transmission multiprotocol label switching echo request message by the path in tunnel corresponding to opposite end; If do not find tunnel corresponding to opposite end, do not send multiprotocol label switching return response message.
Further, request message transmitting element of the present invention is also filled up to the ID in tunnel corresponding to opposite end in the multiprotocol label switching echo request message of transmission.
The multiprotocol label switching echo request message that the judgement of described bidirectional tunnel judging unit receives be whether bidirectional tunnel be that the ID whether multiprotocol label switching echo request message by receiving carries tunnel corresponding to opposite end judges.
Further, the ID by tunnel corresponding to opposite end of the present invention is filled up in the multiprotocol label switching echo request message of its transmission and is:
Extended Tunnel id field corresponding in multiprotocol label switching echo request message is filled in the ID in the second tunnel or add the ID that TLV field is filled in the second tunnel in multiprotocol label switching echo request message.
Further, the present invention also comprises unidirectional tunnel processing unit, for not being bidirectional tunnel when multiprotocol label switching echo request message, sends multiprotocol label switching return response message to the router that sends multiprotocol label switching echo request message.
Further, the corresponding tunnel of the present invention acquiring unit, according to tunnel corresponding to the ID in tunnel corresponding to opposite end bidirectional tunnel whether, determines whether to find corresponding tunnel, opposite end.
From single-ended or two ends, carry out LSP Ping detection MPLS-TE bidirectional tunnel forwarding accessibility compares with prior art, first the present invention judges whether multiprotocol label switching echo request message is bidirectional tunnel, if multiprotocol label switching echo request message is two-way and can finds corresponding tunnel, directly the label in corresponding tunnel is pressed into multiprotocol label switching return response message and the path by corresponding tunnel forwards.If multiprotocol label switching echo request message is two-way, but do not find corresponding tunnel, do not send multiprotocol label switching return response message.Therefore, multiprotocol label switching echo request message of the present invention and multiprotocol label switching return response message are all the MPLS label forwarding based on two-way MPLS-TE tunnel, therefore there will not be above-mentioned two kinds because multiprotocol label switching return response message forwards by route or other tunnels the erroneous judgement causing.And the present invention still takes single-ended execution LSPPing to detect, and user is simple to operate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art MPLS-TE bidirectional tunnel;
Fig. 2 is the method flow diagram that the detection MPLS-TE bidirectional tunnel of the embodiment of the present invention forwards accessibility;
Fig. 3 is the schematic diagram of MPLS-TE bidirectional tunnel of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention.
For prior art, from single-ended or two ends, carrying out LSP Ping detection MPLS-TE bidirectional tunnel forwarding accessibility compares, first the present invention judges whether multiprotocol label switching echo request message is bidirectional tunnel, if multiprotocol label switching echo request message is two-way and can finds corresponding tunnel, directly the label in corresponding tunnel is pressed into multiprotocol label switching return response message and the path by corresponding tunnel forwards.If multiprotocol label switching echo request message is two-way, but do not find corresponding tunnel, do not send multiprotocol label switching return response message.Therefore, multiprotocol label switching echo request message of the present invention and multiprotocol label switching return response message are all the MPLS label forwarding based on two-way MPLS-TE tunnel, therefore there will not be above-mentioned two kinds because multiprotocol label switching return response message forwards by route or other tunnels the erroneous judgement causing.And the present invention still takes single-ended execution LSP Ping to detect, and user is simple to operate.
Referring to Fig. 3, the detection method that the embodiment of the present invention provides a kind of bidirectional tunnel to forward accessibility, is applied to configure the first router in the first tunnel and the second router in configuration the second tunnel, and described the first tunnel and the second tunnel form one group of bidirectional tunnel.Described method comprises:
301, in the first router, carry out LSP Ping and detect, by MPLS label, to the second router, send multiprotocol label switching echo request message;
Whether the multiprotocol label switching echo request message that 302, the second router judgement receives is bidirectional tunnel;
If 303 multiprotocol label switching echo request messages are bidirectional tunnels, can judgement find the second corresponding tunnel;
If 304 find the second corresponding tunnel, the second router is pressed into the MPLS label in the second tunnel and the path by the second tunnel is forwarded to the first router by multiprotocol label switching return response message in multiprotocol label switching return response message;
If 305 do not find the second corresponding tunnel, the second router does not send multiprotocol label switching return response message.
The present invention judges by multiprotocol label switching echo request message whether tunnel is bidirectional tunnel, if bidirectional tunnel, and then judge whether to find corresponding tunnel, if find corresponding tunnel, by MPLS label, the path through corresponding tunnel forwards multiprotocol label switching return response message.If can not find corresponding tunnel, no longer send multiprotocol label switching return response message.
Detecting with single-ended LSP Ping of the prior art, the first router is received after multiprotocol label switching return response message, just resolve multiprotocol label switching return response message and learn that it is reply message corresponding to multiprotocol label switching echo request message that the first router is sent, LSP Ping just detects and determines that the forwarding of MPLS-TE bidirectional tunnel can reach, and shows by type information or other modes.
Multiprotocol label switching echo request message and multiprotocol label switching return response message that the LSP Ping of embodiment of the present invention the first router end and the second router end detects are all to forward according to the MPLS label of bidirectional tunnel.So as long as MPLS-TE bidirectional tunnel fault, can both fast detecting by carrying out LSP ping, reach single-ended execution LSP ping and effectively detect the effect in two tunnels.Meanwhile, LSP Ping message can not forward by route or other tunnels, can avoid the LSP ping that opposite end routing failure or tunnel forward-path fault cause to detect mistake.LSP Ping detects with clearly defined objective, because LSP Ping message forwarding path is exactly the path in MPLS-TE tunnel, so this pair of two LSP ping mode can detect the forwarding accessibility in two-way MPLS-TE tunnel very timely and accurately.
The first router described in step 301 is also filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission.
The multiprotocol label switching echo request message that the second router described in step 302 judgement receives be whether bidirectional tunnel be that the ID whether the multiprotocol label switching echo request message that receives by the second router carries the second tunnel judges.
Described the first router is filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission:
Corresponding expansion tunnel id field in multiprotocol label switching echo request message is filled in the ID in the second tunnel.
Or described the first router is filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission and is:
In multiprotocol label switching echo request message, add the TLV of the ID that fills in the second tunnel.
The present embodiment also comprises step:
If 306 multiprotocol label switching echo request messages are not bidirectional tunnels, the second router sends multiprotocol label switching return response message to the first router.It is identical with existing unidirectional tunnel LSP Ping detection to the mode of the first router that the second router sends multiprotocol label switching return response message.
Described in step 303, can find the second corresponding tunnel specifically to comprise:
If the tunnel corresponding to ID in the second tunnel in multiprotocol label switching echo request message is bidirectional tunnel, be defined as finding the second corresponding tunnel.
If the tunnel that the ID in the second tunnel in multiprotocol label switching echo request message is corresponding is not bidirectional tunnel, be defined as not finding the second corresponding tunnel.
Referring to Fig. 3, the present invention also provides a kind of checkout gear of bidirectional tunnel forwarding accessibility, is applied to respectively dispose two routers of one group of MPLS-TE bidirectional tunnel.Described two routers are respectively the first router and the second router, configure respectively the first tunnel and the second tunnel, and the first tunnel and the second tunnel form one group of bidirectional tunnel.Described device comprises:
Request message transmitting element, detects for carrying out LSP Ping, by MPLS label, to end-to-end router, sends multiprotocol label switching echo request message.
Bidirectional tunnel judging unit, for judging whether the multiprotocol label switching echo request message of reception is bidirectional tunnel.
Corresponding tunnel acquiring unit, for being bidirectional tunnel when multiprotocol label switching echo request message, can judgement find tunnel corresponding to opposite end.
Response message transmitting element, if for finding tunnel corresponding to opposite end, in multiprotocol label switching return response message, be pressed into the MPLS label in tunnel corresponding to opposite end and multiprotocol label switching return response message be forwarded to the router of transmission multiprotocol label switching echo request message by the path in tunnel corresponding to opposite end; If do not find tunnel corresponding to opposite end, do not send multiprotocol label switching return response message.
Described request packet sending unit is also filled up to the ID in tunnel corresponding to opposite end in the multiprotocol label switching echo request message of transmission.
The multiprotocol label switching echo request message that the judgement of described bidirectional tunnel judging unit receives be whether bidirectional tunnel be that the ID whether multiprotocol label switching echo request message by receiving carries tunnel corresponding to opposite end judges.
The described ID by tunnel corresponding to opposite end is filled up in the multiprotocol label switching echo request message of its transmission:
In multiprotocol label switching echo request message, corresponding expansion tunnel id field is filled in the ID in tunnel corresponding to opposite end.
The described ID by tunnel corresponding to opposite end is filled up in the multiprotocol label switching echo request message of its transmission:
In multiprotocol label switching echo request message, add the TLV of the ID that fills in tunnel corresponding to opposite end.
The present embodiment device also comprises unidirectional tunnel processing unit, for not being bidirectional tunnel when multiprotocol label switching echo request message, sends multiprotocol label switching return response message to the router that sends multiprotocol label switching echo request message.It is identical with existing unidirectional tunnel LSP Ping detection to the mode of the first router that the second router sends multiprotocol label switching return response message.
Corresponding tunnel acquiring unit, according to tunnel corresponding to the ID in tunnel corresponding to opposite end bidirectional tunnel whether, determines whether to find corresponding tunnel, opposite end.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (10)
1. bidirectional tunnel forwards a detection method for accessibility, is applied to configure the first router in the first tunnel and the second router in configuration the second tunnel, and described the first tunnel and the second tunnel form one group of bidirectional tunnel, it is characterized in that, described method comprises:
In the first router, carry out LSP Ping and detect, by MPLS label, to the second router, send multiprotocol label switching echo request message;
Whether the multiprotocol label switching echo request message that the second router judgement receives is bidirectional tunnel;
If multiprotocol label switching echo request message is bidirectional tunnel, can judgement find the second corresponding tunnel;
If find the second corresponding tunnel, the second router is pressed into the MPLS label in the second tunnel and the path by the second tunnel is forwarded to the first router by multiprotocol label switching return response message in multiprotocol label switching return response message;
If do not find the second corresponding tunnel, the second router does not send multiprotocol label switching return response message.
2. the method for claim 1, is characterized in that, described the first router is also filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission;
The multiprotocol label switching echo request message that the judgement of described the second router receives be whether bidirectional tunnel be that the ID whether the multiprotocol label switching echo request message that receives by the second router carries the second tunnel judges.
3. method as claimed in claim 2, is characterized in that, described the first router is filled up to the ID in the second tunnel in the multiprotocol label switching echo request message of its transmission and is:
Extended Tunnel id field corresponding in multiprotocol label switching echo request message is filled in the ID in the second tunnel or add the ID that TLV field is filled in the second tunnel in multiprotocol label switching echo request message.
4. method as claimed in claim 2, is characterized in that, if multiprotocol label switching echo request message is not bidirectional tunnel, the second router sends multiprotocol label switching return response message to the first router.
5. method as claimed in claim 2, is characterized in that, can described the second tunnel of correspondence that find specifically comprise:
If the tunnel corresponding to ID in the second tunnel in multiprotocol label switching echo request message is bidirectional tunnel, be defined as finding the second corresponding tunnel;
If the tunnel that the ID in the second tunnel in multiprotocol label switching echo request message is corresponding is not bidirectional tunnel, be defined as not finding the second corresponding tunnel.
6. bidirectional tunnel forwards a checkout gear for accessibility, is applied to respectively dispose two routers of one group of MPLS-TE bidirectional tunnel, it is characterized in that, described device comprises:
Request message transmitting element, detects for carrying out LSP Ping, by MPLS label, to end-to-end router, sends multiprotocol label switching echo request message;
Bidirectional tunnel judging unit, for judging whether the multiprotocol label switching echo request message of reception is bidirectional tunnel;
Corresponding tunnel acquiring unit, for being bidirectional tunnel when multiprotocol label switching echo request message, can judgement find tunnel corresponding to opposite end;
Response message transmitting element, if for finding tunnel corresponding to opposite end, in multiprotocol label switching return response message, be pressed into the MPLS label in tunnel corresponding to opposite end and multiprotocol label switching return response message be forwarded to the router of transmission multiprotocol label switching echo request message by the path in tunnel corresponding to opposite end; If do not find tunnel corresponding to opposite end, do not send multiprotocol label switching return response message.
7. device as claimed in claim 6, is characterized in that, described request packet sending unit is also filled up to the ID in tunnel corresponding to opposite end in the multiprotocol label switching echo request message of transmission;
The multiprotocol label switching echo request message that the judgement of described bidirectional tunnel judging unit receives be whether bidirectional tunnel be that the ID whether multiprotocol label switching echo request message by receiving carries tunnel corresponding to opposite end judges.
8. device as claimed in claim 7, is characterized in that, the described ID by tunnel corresponding to opposite end is filled up in the multiprotocol label switching echo request message of its transmission and is:
Extended Tunnel id field corresponding in multiprotocol label switching echo request message is filled in the ID in the second tunnel or add the ID that TLV field is filled in the second tunnel in multiprotocol label switching echo request message.
9. device as claimed in claim 7, it is characterized in that, also comprise unidirectional tunnel processing unit, for not being bidirectional tunnel when multiprotocol label switching echo request message, send multiprotocol label switching return response message to the router that sends multiprotocol label switching echo request message.
10. device as claimed in claim 7, is characterized in that, corresponding tunnel acquiring unit, according to tunnel corresponding to the ID in tunnel corresponding to opposite end bidirectional tunnel whether, determines whether to find corresponding tunnel, opposite end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476646.2A CN103532781A (en) | 2013-10-12 | 2013-10-12 | Detecting method and device of forwarding accessibility of bidirectional tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476646.2A CN103532781A (en) | 2013-10-12 | 2013-10-12 | Detecting method and device of forwarding accessibility of bidirectional tunnels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103532781A true CN103532781A (en) | 2014-01-22 |
Family
ID=49934480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310476646.2A Pending CN103532781A (en) | 2013-10-12 | 2013-10-12 | Detecting method and device of forwarding accessibility of bidirectional tunnels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103532781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989174A (en) * | 2018-07-09 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of detection method based on Open Stack network system VPN |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114994A (en) * | 2006-07-28 | 2008-01-30 | 中兴通讯股份有限公司 | Method for detecting connectivity of multi-protocol label switching virtual private network |
| US20080247324A1 (en) * | 2007-04-06 | 2008-10-09 | Nadeau Thomas D | Detection of specific bfd path failures |
| CN101447900A (en) * | 2008-12-15 | 2009-06-03 | 华为技术有限公司 | Method, system and device for building bidirectional forwarding detection |
| CN102752143A (en) * | 2012-07-05 | 2012-10-24 | 杭州华三通信技术有限公司 | Bi-directional forwarding detection (BFD) method of multiple protocol label switching (MPLS) traffic engineering (TE) bi-directional tunnel and routing equipment |
| CN102769543A (en) * | 2012-07-20 | 2012-11-07 | 杭州华三通信技术有限公司 | BFD (Bidirectional Forwarding Detection) method and equipment based on LSP (Label Switching Path) |
-
2013
- 2013-10-12 CN CN201310476646.2A patent/CN103532781A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114994A (en) * | 2006-07-28 | 2008-01-30 | 中兴通讯股份有限公司 | Method for detecting connectivity of multi-protocol label switching virtual private network |
| US20080247324A1 (en) * | 2007-04-06 | 2008-10-09 | Nadeau Thomas D | Detection of specific bfd path failures |
| CN101447900A (en) * | 2008-12-15 | 2009-06-03 | 华为技术有限公司 | Method, system and device for building bidirectional forwarding detection |
| CN102752143A (en) * | 2012-07-05 | 2012-10-24 | 杭州华三通信技术有限公司 | Bi-directional forwarding detection (BFD) method of multiple protocol label switching (MPLS) traffic engineering (TE) bi-directional tunnel and routing equipment |
| CN102769543A (en) * | 2012-07-20 | 2012-11-07 | 杭州华三通信技术有限公司 | BFD (Bidirectional Forwarding Detection) method and equipment based on LSP (Label Switching Path) |
Non-Patent Citations (1)
| Title |
|---|
| K.KOMPELLA, G.SWALLOW: "Detecting Multi-Protocol Label Switched(MPLS) Data Plane Failures", 《IETF》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989174A (en) * | 2018-07-09 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of detection method based on Open Stack network system VPN |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8305882B2 (en) | Methods, systems, and computer program products for detecting and/or correcting faults in a multiprotocol label switching network by using redundant paths between nodes | |
| EP2395702B1 (en) | Method and device for processing fault | |
| CN102404145B (en) | The detection method of multi-protocol label switching ring network, Apparatus and system | |
| US9059902B2 (en) | Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements | |
| CN109547279B (en) | Method and system for processing signal degradation fault | |
| CN101335689B (en) | Traceroute implementing method and equipment | |
| CN101917290B (en) | Method, device and network equipment for processing label transmitting path fault as well as network equipment | |
| CN102868569B (en) | The method for testing performance of Layer3 Virtual Private Network, node and system | |
| US9948434B2 (en) | Method for bit error rate detection, and network device | |
| KR20150087851A (en) | Method and apparatus for checking connection of bi-directional lsp | |
| KR20140117993A (en) | Mpls-tp network and method for link failure trace | |
| CN101505250B (en) | Detection method, detection system and VPN for public network LSP | |
| CN104468208A (en) | Detection and recovery method and device for communication faults | |
| CN103200115A (en) | Flow control method and device in SPB (Shortest Path Bridging) network | |
| CN104852809A (en) | Method and system for processing SD (signal degradation) fault | |
| US9515923B2 (en) | Method and device for processing interconnected ring in multi-protocol label switching | |
| CN101964743A (en) | Multiprotocol label-switched path APS (Active Protection System) protection and management method, equipment and system | |
| WO2008106892A1 (en) | A multicast network system, node and a method for detecting a fault of a multicast network link | |
| CN105471736A (en) | Tunnel signal degradation notifying and switching methods and devices | |
| CN102724128B (en) | A kind of based on the message forwarding method in the dual-homing networking of MPLS L3VPN and equipment | |
| CN101741736A (en) | Method and system for determining switchable route in process of sending message | |
| CN103546376B (en) | A kind of transfer approach and node of response message | |
| WO2014008809A1 (en) | Frame loss detection method and system | |
| CN103532781A (en) | Detecting method and device of forwarding accessibility of bidirectional tunnels | |
| CN102812750A (en) | Packet transport network troubleshooting method, packet transport network node and packet transport network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |