CN104539532B - The system and method for NNI protections UNI based on LTE base station passed-back traffic - Google Patents
The system and method for NNI protections UNI based on LTE base station passed-back traffic Download PDFInfo
- Publication number
- CN104539532B CN104539532B CN201510011176.1A CN201510011176A CN104539532B CN 104539532 B CN104539532 B CN 104539532B CN 201510011176 A CN201510011176 A CN 201510011176A CN 104539532 B CN104539532 B CN 104539532B
- Authority
- CN
- China
- Prior art keywords
- business
- bfd
- primary
- base station
- lte base
- 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.)
- Active
Links
Abstract
The invention discloses a kind of system and method for the NNI protections UNI based on LTE base station passed-back traffic, it is related to the protection field based on LTE base station passed-back traffic.The present invention configures BFD in PW business, is associated PW business with BDF by BFD_ID.When Customer Premises Network breaks down, because being configured with BFD on PW, fault message quickly can be notified A2 and B1 by the BFD of PW business；In the route-map that business down direction, B1 break down according to being found with BFD_ID, less preferred Host routes corresponding with failed router are promoted to preferred Host routes.The present invention can protect UNI sidelinks to realize that the quick of business is switched by using NNI sidelinks; and then effectively reduce user side link failure when packet loss quantity; the stability of network transmission can not only be improved, and the switching time of down direction business can be shortened, is easy to people to use.
Description
Technical field
The present invention relates to the protection field based on LTE base station passed-back traffic, and in particular to one kind is based on LTE (Long Term
Evolution, Long Term Evolution) base station passed-back traffic NNI (Network-Network-Interface, Network interface)
Protect UNI (User-Networks-Interface, User Network Interface) system and method.
Background technology
LTE is by 3GPP (The 3rd Generation Partnership Project, third generation affiliate meter
Draw) UMTS (Universal Mobile Telecommunications System, the universal mobile communications system that organize to set up
System) technical standard Long Term Evolution.
At present, the method for industry processing LTE base station business is generally：User's ring establish and upper words PW (PseudoWire,
Pseudo-wire) business is to network side node, and network side node is by VE (Virtual-Ethernet, virtual ethernet) interfaces by PW industry
Business bridges to three layers of (Internet) VPN (Virtual Private Network, VPN) Network Transport service.Referring to Fig. 1
Shown, LTE base station (BS) is connected with user side router (A1, A2, A3 ... A8), and by taking A2 as an example, the business in LTE base station is entered
Entering the mode that network side network is transmitted is：LTE base station business is sent to A2, A2 and network lateral edges road by direct-connected interface
By being established between device B1 and upper words PW business, PW business is carried out 2/3 layer by ve interface in B1 and bridges to three-layer VPN network and enters
Row transmission.
PW is a kind of two layer service bearing technology end to end, and belonging to the L2VPN of point to point system, (data link layer is virtual
Private network) technology.Shown in Figure 1, PW can regard a direct-connected chain between LTE base station BS and network side network node B1 as
Road, when LTE base station uploads IP messages by above-mentioned direct connected link, B1 may learn the ARP (Address of LTE base station
Resolution Protocol, address resolution protocol) address.The ARP is converted into Host routes and carried out in network side network by B1
Route issue, after route issue and route learning is completed, B3 study to destination node is the next of the IP messages of LTE base station
It is B1 to jump route, and then finishing service transmits.
As can be seen that when business is transmitted in network side network and B1, B1 just turns into business in network side network
Words node up and down.In up direction, LTE base station business completes 2/3 layer of bridge joint on B1 ve interface by PW and goes to three-layer VPN
Network；In down direction, network side is transferred to the business of LTE base station, and 3/2 layer of bridge joint is completed on B1 ve interface and goes to two layers
PW is upper to be talked about under A2 nodes.This completes the downstream transmission of LTE base station business.
In order to ensure the normal transmission of business (such as user side break down when, LTE base station business being capable of fast quick-recovery),
Need to set Protection path for LTE base station business, it is shown in Figure 1, in the topology of user side to network side, LTE base station BS's
Business is transmitted to A2, is A2-A1-B1 in A2 and B1 primary PW service paths, the standby PW service paths between A2 and B2
For A2-A3-A4-B2.The ARP addresses of LTE base station can be acquired on B1 and B2, B1 and B2 nodes can convert ARP
Issued for Host routes and in network side network.When the primary PW service paths of user side break down, business switch to
Standby PW service paths are transmitted.
When primary PW service paths break down, for the business of PW up directions (user side to network side), user
Side router can directly be switched to standby PW service paths and carry out business transmission.For PW down directions (network side to user
Side) business, due to primary PW service paths failure, therefore can not directly pass through primary network side router issuing service；It is main
Needed first to cancel ARP Host routes corresponding with user side router with network side router, then reselect backup network
The business of side router transmission down direction.(such as B1 failures, B1 need first to cancel ARP Host routes corresponding with A2, ability
Again through B2 issuing services).But business transmission quantity it is larger when, time of primary network side router revocation a large number of services compared with
It is long, the switching time of down direction business is extended, and then substantial amounts of packet loss phenomenon can be caused, it is not easy to people's use.
The content of the invention
For defect present in prior art, it is an object of the invention to provide one kind to be based on LTE base station passed-back traffic
NNI protection UNI system and method.The present invention can be by using NNI sides (network side) link protection UNI side (user side) chain
Road realizes that the quick of business is switched, and then packet loss quantity during effective reduction user side link failure, can not only improve network
The stability of transmission, and the switching time of down direction business can be shortened, it is easy to people to use.
To achieve the above objectives, the system of the NNI protections UNI provided by the invention based on LTE base station passed-back traffic, including
Some user side routers and some network side routers；The user side router for receiving Long Term Evolution LTE base station business is A2,
Primary network side router is B1 corresponding to A2, and backup network side router corresponding to A2 is B2；
When the system carries out LTE base station passed-back traffic, primary PW business is established between A2 and B1, in primary PW business
Primary PW business and BDF, are associated by upper configuration two-way converting detection BFD quick detection functions by BFD ID；B1 will be learned
After the ARP corresponding with primary PW business practised is converted into primary Host routes, pass through network layer VPN
L3VPN is issued；
Standby PW business is established between A2 and B2, BFD quick detection functions are configured in standby PW business, pass through BFD
ID standby PW business and BDF are associated；Study ARP corresponding with standby PW business is converted into backup host road by B2
By rear, issued by L3VPN；
Borde gateway bgp protocol is configured on B1 and B2, B1, will be standby using primary Host routes as preferred Host routes
Host routes are protected as suboptimum and route；Preferred Host routes and suboptimum are protected route sending-down to lead to device hardware layer, B1 by B1
Preferred Host routes are associated by the ID for crossing BFD with BFD；
When Customer Premises Network breaks down, the BFD of primary PW business is by fault information reporting to A2 and B1：
In business up direction, primary PW service paths are switched to standby PW service paths by A2 automatically；The PW of LTE base station
Business is communicated by the path of standby PW business；
In business down direction, after B1 receives the fault message that BFD is reported, descending PW business is kept to continue to lead in B1
Cross；For B1 according to the information that failed router corresponding with fault message is searched with BFD ID, B1 will be corresponding with failed router
Less preferred Host routes are promoted to preferred Host routes, are transmitted by preferred Host routes.
On the basis of above-mentioned technical proposal, some user side routers include user side router A1, A2, A3,
A4, A5, A6, A7 and A8, some network side routers include user side router B1, B2, B3 and B4；LTE base station and A2
It is connected, A2, A1, B1, B2, A4 and A3, which sequentially join end to end, forms the first Customer Premises Network, and A7, A6, A5, B1, B2 and A8 are sequentially
Join end to end composition second user side network, and B1, B2, B4 and B3 sequentially join end to end network consisting side network；LTE base station returns
Business is transmitted by user side and network side network respectively.
Provided by the present invention for the protections of the NNI based on the LTE base station passed-back traffic UNI of said system method, including
Following steps：
S1：Primary PW business is established between A2 and B1, two-way converting detection BFD is configured in primary PW business and is quickly examined
Brake, primary PW business and BDF are associated by BFD ID；B1 is by study address corresponding with primary PW business
After analysis protocol ARP is converted into primary Host routes, is issued by network layer VPN L3VPN, go to step S2；
S2：Standby PW business is established between A2 and B2, BFD quick detection functions are configured in standby PW business, are passed through
Standby PW business and BDF are associated by BFD ID；Study ARP corresponding with standby PW business is converted into standby master by B2
After machine route, issued by L3VPN, go to step S3；
S3：Borde gateway bgp protocol is configured on B1 and B2, B1, will using primary Host routes as preferred Host routes
Backup host route is as suboptimum protection route；Preferred Host routes and suboptimum are protected route sending-down to device hardware layer by B1,
Preferred Host routes are associated by B1 by BFD ID with BFD, go to step S4；
S4：When Customer Premises Network breaks down, the BFD of primary PW business is by fault information reporting to A2 and B1：
In business up direction, primary PW service paths are switched to standby PW service paths by A2 automatically；The PW of LTE base station
Business is communicated by the path of standby PW business；
In business down direction, after B1 receives the fault message that BFD is reported, descending PW business is kept to continue to lead in B1
Cross；For B1 according to the information that failed router corresponding with fault message is searched with BFD ID, B1 will be corresponding with failed router
Less preferred Host routes are promoted to preferred Host routes, are transmitted by preferred Host routes.
On the basis of above-mentioned technical proposal, road that the PW business of LTE base station described in step S4 passes through standby PW business
Footpath is communicated, and specifically includes following steps：The PW business of LTE base station is sent to B2, B2 void by standby PW service paths
Intend Ethernet ve interface and the progress of PW business is bridged into L3VPN networks for 2/3 layer.
It is further comprising the steps of after step S4 on the basis of above-mentioned technical proposal：
S5：Primary PW service paths complete convergence, and after Customer Premises Network Failure elimination, and BFD is by the message of fault recovery
B1 and A2 are reported to, B1 and A2 start the switchback flow of business, and LTE base station passed-back traffic is transmitted by primary PW service paths.
On the basis of above-mentioned technical proposal, the switchback flow of B1 described in step S5 and A2 startup PW business, PW business
Transmitted by primary PW service paths, specifically include following steps：Setting business returns to the time of return of timer, starts business
Timer is returned to, LTE base station passed-back traffic is transmitted by primary PW service paths after the time to be returned expires.
Compared with prior art, the advantage of the invention is that：
(1) present invention configures BFD quick detection functions in PW business (primary PW business and standby PW business), passes through
PW business is associated by BFD_ID with BDF.When Customer Premises Network breaks down (such as occur optical fiber event between A2-A1
Barrier, the link in turn resulted between A2-A1 break down, and PW business can not be transmitted) quickly examined because being configured with BFD on PW
Brake, so the BFD of PW business can notify fault message A2 and B1, and then shorten failure response time, effectively reduce
Packet loss quantity.
(2) if the present invention is in use, Customer Premises Network breaks down, at business down direction (B1-A1-A2), B1 is received
After the fault message reported to BFD, ARP Host routes are not cancelled immediately, keep descending PW business to continue to pass through in B1.B1 according to
The route-map to break down is found with BFD_ID, Host routes corresponding with failed router are promoted to preferred main frame road
By PW business is transmitted by the route of preferred main frame.Therefore, the present invention can protect by using NNI sides (network side) link
Shield UNI side (user side) link realizes that the quick of business is switched, and then packet loss quantity during effective reduction user side link failure,
The stability of network transmission can not only be improved, and the switching time of down direction business can be shortened, is easy to people to use.
Brief description of the drawings
Fig. 1 is that the NNI of LTE base station passed-back traffic in background technology protects UNI exemplary plot；
Fig. 2 is the network topological diagram of LTE base station passed-back traffic user side and network side in the embodiment of the present invention；
When Fig. 3 is user side failure in the embodiment of the present invention, exemplary plot that LTE base station passed-back traffic is switched；
Fig. 4 is the exemplary plot that LTE base station passback working traffic recovers in the embodiment of the present invention after primary PW recoveries.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 2, the system of the protections of the NNI based on the LTE base station passed-back traffic UNI in the embodiment of the present invention, bag
Include some user side routers (A1, A2, A3, A4, A5, A6, A7 and A8), some network side routers (B1, B2, B3 and B4).
LTE base station is connected with 1 user side router (A2), and A2, A1, B1, B2, A4 and A3 sequentially join end to end composition
One Customer Premises Network (A2-A1-B1-B2-A4-A3), A7, A6, A5, B1, B2 and A8, which sequentially join end to end, forms second user side
Network (A7-A6-B5-B1-B2-A8), B1, B2, B4 and B3 sequentially join end to end network consisting side network (B1-B2-B4-B3).
LTE base station passed-back traffic needs to be transmitted by user side and network side network respectively.
The method of the protections of the NNI based on the LTE base station passed-back traffic UNI for being used for said system in the embodiment of the present invention,
Comprise the following steps：
S1：Built between the user side router A2 primary network side routers (B1) corresponding with A2 of LTE base station connection
Primary PW business is found, primary PW service paths are A2-A1-B1, and BFD (Bidirectional are configured in primary PW business
Forwarding Detection, two-way converting detection) quick detection function, by BFD_ID (BFD ID) by primary PW industry
Business and BDF are associated.After study ARP corresponding with primary PW business is converted into primary Host routes by B1, pass through L3VPN
(network layer VPN) is issued, and goes to step S2.
S2：Built between the user side router A2 backup network side routers (B2) corresponding with A2 of LTE base station connection
Standby PW business is found, standby PW service paths are A2-A3-A4-B2, and BFD quick detection functions are configured in standby PW business, are led to
BFD_ID is crossed to be associated standby PW business and BDF.Study ARP corresponding with standby PW business is converted into standby master by B2
After machine route, issued by L3VPN, go to step S3.
S3：Bgp protocol (Border Gateway Protocol), the Host routes that B1 will be learnt by UNI sides are configured on B1 and B2
(i.e. primary Host routes) are used as preferred Host routes, by the Host routes learnt by NNI sides (the i.e. standby master of B2 issues
Machine is route) as suboptimum protection route.Preferred Host routes and suboptimum are protected route sending-down to pass through to device hardware layer, B1 by B1
Preferred Host routes are associated by BFD_ID with BFD, go to step S4.
Step S3 operation principle is：Because primary PW business is identical with the business information of standby PW business, B1 and
The ARP Host routes of B2 issues are identical；And the ARP Host routes of B1 and B2 issues learn from the LTE base station being connected with A2,
Therefore the address for the ARP Host routes that B1 and B2 is issued is identical.
S4：It is shown in Figure 3, when Customer Premises Network breaks down (such as occur fiber failure between A2-A1, and then
The link between A2-A1 is caused to break down, PW business can not be transmitted), quickly examined due to being configured with BFD in primary PW business
Brake, therefore the BFD of primary PW business can be quickly by fault information reporting to A2 and B1.
At business up direction (A2-A1-B1), primary PW service paths are switched to standby PW service paths by A2 automatically；
The PW business of LTE base station is sent to B2, B2 ve interface by standby PW service paths and bridges to the progress of PW business for 2/3 layer
L3VPN networks.
At business down direction (B1-A1-A2), after B1 receives the fault message that BFD is reported, ARP master is not cancelled immediately
Machine is route, and keeps descending PW business to continue to pass through in B1.B1 searches failure route corresponding with fault message according to BFD_ID
Less preferred Host routes corresponding with failed router are promoted to preferred Host routes, pass through preferred main frame by the information of device, B1
Route be transmitted.
S5：Shown in Figure 4, primary PW service paths complete convergence, and after Customer Premises Network Failure elimination, BFD will be former
Hinder the information reporting recovered to B1 and A2, B1 and A2 start the switchback flow of business, and LTE base station passed-back traffic passes through primary PW industry
Business path transmission.
Start the switchback flow of PW business in step S5 by B1 and A2, PW business is transmitted by primary PW service paths, is had
Body comprises the following steps：Setting business returns to the time of return of timer, starts business and returns to timer, the time to be returned expires
LTE base station passed-back traffic is transmitted by primary PW service paths afterwards.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. a kind of system of the NNI protections UNI based on LTE base station passed-back traffic, including some user side routers and some nets
Network side router；The user side router for receiving Long Term Evolution LTE base station business is A2, primary network side router corresponding to A2
For B1, backup network side router corresponding to A2 is B2；
It is characterized in that：When the system carries out LTE base station passed-back traffic, primary PW business is established between A2 and B1, in master
With two-way converting detection BFD quick detection functions are configured in PW business, primary PW business and BDF are closed by BFD ID
Connection；After study ARP corresponding with primary PW business is converted into primary Host routes by B1, pass through Internet
VPN L3VPN is issued；
Standby PW business is established between A2 and B2, BFD quick detection functions are configured in standby PW business, pass through BFD ID
Standby PW business and BDF are associated；Study ARP corresponding with standby PW business is converted into backup host route by B2
Afterwards, issued by L3VPN；
Borde gateway bgp protocol is configured on B1 and B2, B1 is using primary Host routes as preferred Host routes, by backup host
Route is as suboptimum protection route；Preferred Host routes and suboptimum are protected route sending-down to pass through BFD to device hardware layer, B1 by B1
ID preferred Host routes are associated with BFD；
When Customer Premises Network breaks down, the BFD of primary PW business is by fault information reporting to A2 and B1：
In business up direction, primary PW service paths are switched to standby PW service paths by A2 automatically；The PW business of LTE base station
Communicated by the path of standby PW business；
In business down direction, after B1 receives the fault message that BFD is reported, descending PW business is kept to continue to pass through in B1；B1
According to the information that failed router corresponding with fault message is searched with BFD ID, B1 will suboptimum corresponding with failed router
Select Host routes to be promoted to preferred Host routes, be transmitted by preferred Host routes.
2. the system of the NNI protections UNI based on LTE base station passed-back traffic as claimed in claim 1, it is characterised in that：It is described
Some user side routers include user side router A1, A2, A3, A4, A5, A6, A7 and A8, some network side routers
Including user side router B1, B2, B3 and B4；LTE base station is connected with A2, and A2, A1, B1, B2, A4 and A3 sequentially join end to end group
Into the first Customer Premises Network, A7, A6, A5, B1, B2 and A8 sequentially join end to end composition second user side network, B1, B2, B4 and
B3 sequentially joins end to end network consisting side network；LTE base station passed-back traffic is passed by user side and network side network respectively
It is defeated.
3. the method for the protections of the NNI based on LTE base station passed-back traffic UNI for the system of claim 1 or 2 a kind of, its
It is characterised by, comprises the following steps：
S1：Primary PW business is established between A2 and B1, two-way converting detection BFD quick detection work(is configured in primary PW business
Can, primary PW business and BDF are associated by BFD ID；B1 is by study address resolution corresponding with primary PW business
After agreement ARP is converted into primary Host routes, is issued by network layer VPN L3VPN, go to step S2；
S2：Standby PW business is established between A2 and B2, BFD quick detection functions are configured in standby PW business, pass through BFD's
Standby PW business and BDF are associated by ID；Study ARP corresponding with standby PW business is converted into backup host route by B2
Afterwards, issued by L3VPN, go to step S3；
S3：Borde gateway bgp protocol is configured on B1 and B2, B1, will be standby using primary Host routes as preferred Host routes
Host routes are protected as suboptimum and route；Preferred Host routes and suboptimum are protected route sending-down to lead to device hardware layer, B1 by B1
Preferred Host routes are associated by the ID for crossing BFD with BFD, go to step S4；
S4：When Customer Premises Network breaks down, the BFD of primary PW business is by fault information reporting to A2 and B1：
In business up direction, primary PW service paths are switched to standby PW service paths by A2 automatically；The PW business of LTE base station
Communicated by the path of standby PW business；
In business down direction, after B1 receives the fault message that BFD is reported, descending PW business is kept to continue to pass through in B1；B1
According to the information that failed router corresponding with fault message is searched with BFD ID, B1 will suboptimum corresponding with failed router
Select Host routes to be promoted to preferred Host routes, be transmitted by preferred Host routes.
4. the method for the NNI protections UNI based on LTE base station passed-back traffic as claimed in claim 3, it is characterised in that：Step
The PW business of LTE base station described in S4 is communicated by the path of standby PW business, specifically includes following steps：LTE base station
PW business sent by standby PW service paths to B2, PW business is carried out 2/3 layer of bridge joint by B2 virtual ethernet ve interface
To L3VPN networks.
5. the method for the protections of the NNI based on the LTE base station passed-back traffic UNI as described in claim 3 or 4, it is characterised in that step
It is further comprising the steps of after rapid S4：
S5：Primary PW service paths complete convergence, and after Customer Premises Network Failure elimination, and BFD is by the information reporting of fault recovery
To B1 and A2, the switchback flow of B1 and A2 startup business, LTE base station passed-back traffic is transmitted by primary PW service paths.
6. the method for the NNI protections UNI based on LTE base station passed-back traffic as claimed in claim 5, it is characterised in that：Step
B1 described in S5 and A2 starts the switchback flow of PW business, and PW business is transmitted by primary PW service paths, specifically included following
Step：Setting business returns to the time of return of timer, starts business and returns to timer, LTE base station after the time to be returned expires
Passed-back traffic is transmitted by primary PW service paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011176.1A CN104539532B (en) | 2015-01-09 | 2015-01-09 | The system and method for NNI protections UNI based on LTE base station passed-back traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011176.1A CN104539532B (en) | 2015-01-09 | 2015-01-09 | The system and method for NNI protections UNI based on LTE base station passed-back traffic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104539532A CN104539532A (en) | 2015-04-22 |
| CN104539532B true CN104539532B (en) | 2018-03-20 |
Family
ID=52855001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510011176.1A Active CN104539532B (en) | 2015-01-09 | 2015-01-09 | The system and method for NNI protections UNI based on LTE base station passed-back traffic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104539532B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572317B (en) * | 2019-07-16 | 2022-04-08 | 烽火通信科技股份有限公司 | Method and system for realizing dynamic ARP hot backup in telecommunication network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325037A (en) * | 2011-05-25 | 2012-01-18 | 中兴通讯股份有限公司 | Method and system for switching pseudo-wire dual-homing network and dual-homing operator equipment |
| CN103457818A (en) * | 2012-05-31 | 2013-12-18 | 美国博通公司 | Multi-homing in an extended bridge |
| CN103490969A (en) * | 2013-09-17 | 2014-01-01 | 烽火通信科技股份有限公司 | System and method for achieving VPWS redundancy protection rapid convergence |
| CN103581025A (en) * | 2013-10-23 | 2014-02-12 | 华为技术有限公司 | Method and system for processing routing information and equipment |
| US8780699B1 (en) * | 2009-10-12 | 2014-07-15 | Juniper Networks, Inc. | Handling switchover of multi-homed connections in VPLS networks |
-
2015
- 2015-01-09 CN CN201510011176.1A patent/CN104539532B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8780699B1 (en) * | 2009-10-12 | 2014-07-15 | Juniper Networks, Inc. | Handling switchover of multi-homed connections in VPLS networks |
| CN102325037A (en) * | 2011-05-25 | 2012-01-18 | 中兴通讯股份有限公司 | Method and system for switching pseudo-wire dual-homing network and dual-homing operator equipment |
| CN103457818A (en) * | 2012-05-31 | 2013-12-18 | 美国博通公司 | Multi-homing in an extended bridge |
| CN103490969A (en) * | 2013-09-17 | 2014-01-01 | 烽火通信科技股份有限公司 | System and method for achieving VPWS redundancy protection rapid convergence |
| CN103581025A (en) * | 2013-10-23 | 2014-02-12 | 华为技术有限公司 | Method and system for processing routing information and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104539532A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8081563B2 (en) | Protecting multi-segment pseudowires | |
| CN102638389B (en) | The redundancy backup method and system of a kind of TRILL network | |
| KR101488648B1 (en) | Bootstrapping fault detection sessions over a p2mp tunnel | |
| US9059902B2 (en) | Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements | |
| EP2498454A1 (en) | Method, device and system for processing service traffic based on pseudo wires | |
| CN104767680B (en) | It route the method and apparatus being switched fast | |
| CN101753453B (en) | Networking method for ring network of packet transport network | |
| CN101702658B (en) | Implement method of ring network protection and system thereof | |
| CN104270231B (en) | A kind of system and method for realizing binode interconnection pseudo-wire | |
| WO2013182059A1 (en) | Method and device for establishing multi-protocol label switching traffic engineering tunnel | |
| EP1958364B1 (en) | Vpls remote failure indication | |
| EP2911355B1 (en) | Method and device for flow path negotiation in link aggregation group | |
| CN104518960B (en) | A kind of method, equipment and the system of the switchback that is delayed | |
| CN103326940B (en) | Method for forwarding message in network and edge device of operator | |
| CN102282805B (en) | Method for service protection and access device | |
| WO2011060667A1 (en) | Method and device for link protection in virtual private local area network | |
| KR20100103459A (en) | Multi-point and rooted multi-point protection switching | |
| CN107332683A (en) | A kind of link switch-over method and system | |
| CN100382501C (en) | Three-layer VPN operation maintenance system and method in communication network | |
| US8738960B2 (en) | Local protection method of ethernet tunnel and sharing node of work sections of protection domain | |
| CN104539532B (en) | The system and method for NNI protections UNI based on LTE base station passed-back traffic | |
| WO2012094884A1 (en) | Method and system for improving service reliability in virtual private network, and access device | |
| Huynh et al. | RRR: Rapid ring recovery submillisecond decentralized recovery for ethernet ring | |
| CN102571449B (en) | The switching method and device of link | |
| WO2011011934A1 (en) | Method and apparatus for ethernet tunnel segmentation protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180323 Address after: 430074 Wuhan, Hongshan Province District Road, Department of mail, No. 88 hospital Co-patentee after: WUHAN FIBERHOME TECHNICAL SERVICES CO., LTD. Patentee after: Fenghuo Communication Science &. Technology Co., Ltd. Address before: China Science and Technology Park Dongxin road East Lake Development Zone 430074 Hubei Province, Wuhan City, No. 5 Patentee before: Fenghuo Communication Science &. Technology Co., Ltd. |