CN108023800A - A kind of guard method of LTE bearer networks and device - Google Patents
A kind of guard method of LTE bearer networks and device Download PDFInfo
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- CN108023800A CN108023800A CN201610976923.XA CN201610976923A CN108023800A CN 108023800 A CN108023800 A CN 108023800A CN 201610976923 A CN201610976923 A CN 201610976923A CN 108023800 A CN108023800 A CN 108023800A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
Abstract
Guard method and system the present invention relates to a kind of LTE bearer networks, the network include sequentially connected access ring, convergence ring and core ring；The described method includes：It is multiprotocol label switching ring to configure the access ring, convergence ring and core ring；When initial ring uplink failure or non-source egress break down, looped network protection switching is triggered, so that business goes out ring after dual homed slave node from source by dual homed host node；When dual homed host node failure on initial ring, the switching between looped network protection switching and dual homed main-standby nodes is triggered, so that business goes out ring from the dual homed host node after switching.Technical solution provided in an embodiment of the present invention; when a failure occurs it; rely on looped network dual-homing protection technology; the automatic looped network protection switching and dual homed active-standby switch for realizing business; so as to simplify the complexity of the configuration of network protection and O＆M; the guard method of existing LTE bearer networks is overcome to need to be superimposed a variety of protected modes, the defects of configuration and maintenance difficulties are big.
Description
Technical field
The present invention relates to guard method and the device of field of communication technology, more particularly to a kind of LTE bearer networks.
Background technology
As the increasingly mature and extensive use of PTN (Packet Transport Network) product, operator are easy to redundancy protecting technology
It is expected to be continuously improved with property, reliability.And the introducing of current fourth generation mobile communication technology (LTE), it is desirable to the shifting as carrying
Dynamic return network supports exchange ability of three layers switch in core layer, and convergence and access layer are still with old double layer network, in network
Crosspoint must using two or three layers of bridging technology come complete two layers to three layers conversion.
Traditional redundancy protecting technology based on this group-network construction, is broadly divided into pseudo-wire dual-homing protection and link protection.It is pseudo-
Line dual-homing protection is used for business node failure redundancy protecting up and down, mainly includes：MC-PW APS (are protected automatically across the pseudo-wire of rack
Shield switching), MC-LAG (across the link aggregation of rack), VPN FRR (the quick heavy-route of Virtual Private Network), VRRP (virtual roads
By redundancy protocol) mode.Link protection is used for link or the protection of conventional node fault redundance between node, mainly includes：
Tunnel APS (tunnel automatic protection switching), PW APS (pseudo-wire automatic protection switching) and similar to traditional SDH (same to step numbers
Font system) annular networking the looped network protection based on MPLS (multiprotocol label switching) technology.
Various protection techniques are in the field of business ripe application, often using a kind of or two kinds of protection (UNI (network-Networks
Interface) and NNI (user-network interface) side) coordinate and complete, to solve the problems, such as landing node failure and multipoint fault at the same time.
But for the mobile LTE bearer networks using two or three layers of bridge joint, it is related to more protection techniques and is superimposed on same node.
As shown in Figure 1, being typical PTN LTE bearer network structures, node A is base station access device, and B and C are convergence
Layer equipment, D and E are that two or three layers of bridging device of core, F and G land equipment for three layers of core.Node A is configured to node D's and E
Dual homed MC-PW APS, which are protected, solves node failure, meanwhile, respectively dispose looped network protection solution multipoint link event accessing and converging ring
Barrier.Core layer by D, E, F, G hollow networking, superposed configuration VPN FRR and Tunnel APS or looped network protection, solves chain respectively
Road and node failure.Configuration of IP FRR (the quick heavy-route of flow) and LAG (link aggregation group) is protected between node F, G and core net
Shield, prevents link failure.It follows that the guard method of existing LTE bearer networks needs to be superimposed a variety of protected modes, so that
Planning, configuration and the complexity safeguarded and difficulty all greatly increase.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of guard method of the LTE bearer networks of optimization, overcome biography
System redundancy protecting technology is, it is necessary to be superimposed a variety of protected modes, the defects of configuration and maintenance difficulties are big.
For this purpose, the present invention proposes a kind of guard method of LTE bearer networks, the network includes sequentially connected
Access ring, convergence ring and core ring；The described method includes：
It is multiprotocol label switching ring to configure the access ring, convergence ring and core ring；
When initial ring uplink failure or non-source egress break down, looped network protection switching is triggered, so that business is from source
End goes out ring after dual homed slave node by dual homed host node；
When dual homed host node failure on initial ring, the switching between looped network protection switching and dual homed main-standby nodes is triggered,
So that business goes out ring from the dual homed host node after switching.
Preferably, the method further includes：
In the case where not breaking down, business biography is carried out by the dual homed host node of the multiprotocol label switching ring
Send.
Preferably, configuration access ring, convergence ring and the core ring are multiprotocol label switching ring, are specifically included：
The crossed node of the access ring and convergence ring is configured to the first dual homed host node and the first dual homed slave node；
The bridging nodes of the convergence ring and core ring are configured to the second dual homed host node and the second dual homed slave node；
The connecting node of the core ring and core net is configured to the 3rd dual homed host node and the 3rd dual homed slave node.
Preferably, it is described in the case where not breaking down, pass through the dual homed host node of the multiprotocol label switching ring
Carry out business transmission, specifically includes：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by dual homed host node.
Preferably, it is described when dual homed host node failure on initial ring, trigger looped network protection switching and dual homed main-standby nodes
Between switching so that business goes out ring from the dual homed host node after switching, specifically include：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, ring is triggered
Net pretection switch, so that business is switched to alternate channel and is transmitted, and dual homed corresponding with the dual homed host node of failure is standby
Node is switched to dual homed host node, so that business goes out ring by the alternate channel from the dual homed host node after switching.
On the other hand, the embodiment of the present invention additionally provides a kind of protection system of LTE bearer networks, the network include according to
Access ring, convergence ring and the core ring of secondary connection；The system comprises：
Configuration module, is multiprotocol label switching ring for configuring the access ring, convergence ring and core ring；
Looped network switches module, for when initial ring uplink failure or non-source egress break down, triggering looped network protection
Switch, so that business goes out ring after dual homed slave node from source by dual homed host node；
Active-standby switch module, for when dual homed host node failure on initial ring, triggering looped network protection switching and dual homed master
Switching between slave node, so that business goes out ring from the dual homed host node after switching.
Preferably, the system also includes：
Business delivery module, in the case where not breaking down, passing through the dual homed of the multiprotocol label switching ring
Host node carries out business transmission.
Preferably, the configuration module specifically includes：
First dispensing unit, for by the access ring and convergence ring crossed node be configured to the first dual homed host node and
First dual homed slave node；
Second dispensing unit, for by it is described convergence ring and core ring bridging nodes be configured to the second dual homed host node and
Second dual homed slave node；
3rd dispensing unit, for by the connecting node of the core ring and core net be configured to the 3rd dual homed host node and
3rd dual homed slave node.
Preferably, the business delivery module is specifically used for：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by dual homed host node.
Preferably, the active-standby switch module is specifically used for：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, ring is triggered
Net pretection switch, so that business is switched to alternate channel and is transmitted, and dual homed corresponding with the dual homed host node of failure is standby
Node is switched to dual homed host node, so that business goes out ring by the alternate channel from the dual homed host node after switching.
A kind of guard method of LTE bearer networks of the embodiment of the present invention and system, by access ring, convergence ring and core ring
MPLS rings are configured to, when a failure occurs it, rely on looped network dual-homing protection technology, realize the looped network protection switching of business and double automatically
Return active-standby switch, so as to simplify the complexity of the configuration of network protection and O＆M, optimized by looped network dual-homing protection, can solved
Some application limitations in certainly current mobile retransmission network on multiple protective, overcoming the guard method of existing LTE bearer networks needs
It is superimposed a variety of protected modes, the defects of configuration and maintenance difficulties are big.
Brief description of the drawings
The features and advantages of the present invention can be more clearly understood by reference to attached drawing, attached drawing is schematically without that should manage
Solve to carry out any restrictions to the present invention, in the accompanying drawings：
Fig. 1 is the redundancy protected method schematic diagram of existing PTN LTE bearer networks；
Fig. 2 is the structure diagram of LTE bearer networks provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of the guard method of LTE bearer networks；
When Fig. 4 is fault-free, the principle schematic of MPLS looped network dual-homing protection；
When Fig. 5 breaks down for dual homed host node, the principle schematic of MPLS looped network dual-homing protection；
When Fig. 6 breaks down for ring uplink, the principle schematic of MPLS looped network dual-homing protection；
When Fig. 7-9 breaks down for dual homed host node, the principle schematic of LTE bearer network looped network dual-homing protection；
When Figure 10-13 breaks down for ring uplink, the principle schematic of LTE bearer network looped network dual-homing protection；
Figure 14 is the structure diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Embodiment
Below in conjunction with attached drawing, embodiments of the present invention is described in detail.
An embodiment of the present invention provides a kind of guard method of LTE bearer networks, as shown in Fig. 2, the LTE bearer network bags
Include sequentially connected access ring, convergence ring and core ring；Wherein, access ring can include node A, node B and node C, convergence
Ring can include node B, node C, node D and node E, and core ring can include node D, node E, node F and node G, its
In, node A is base station access device, and node B and node C are access ring and the crossed node for converging ring, and node D and node E are
Converge the bridging nodes of ring and core ring, node F and the connecting node that node G is core ring and core net.Access ring and convergence
Ring group forms three layer service ring L3 into two layer service ring L2 cores rings, wherein, both links are disposed between node D and node E, point
L2 sides dual homed and L3 sides dual homed Yong Yu not carried.As shown in Fig. 2, access ring, convergence ring and core ring need to only dispose looped network protection
Without being superimposed deployment pseudo-wire dual-homing protection (such as MC-PW APS and VPN FRR), or even connect Tunnel APS, L2 turns L3's
MC-LAG is also without enormously simplify network configuration and the complexity of O＆M.LTE provided in an embodiment of the present invention is held below
The guard method expansion of contained network network is described in detail.
As shown in figure 3, the guard method of LTE bearer networks provided in an embodiment of the present invention comprises the following steps：
S1：It is MPLS rings (multiprotocol label switching ring) to configure the access ring, convergence ring and core ring；
Specifically, it is MPLS rings that L2 sides, which can configure A-B-C-A rings, configuration B-D-E-C-B rings are MPLS rings, and L3 sides configure
D-F-G-E-D rings are MPLS rings.Each MPLS rings carry out looped network dual-homing protection.For example, as shown in Figure 4,5, node A, B, C
On same MPLS rings, node A is dual homed business source, and node B and C are dual homed business egress, and node B and node C match somebody with somebody
A dual homed group is put, B is the default host node of dual homed, and C is the default slave node of dual homed.From node A to dual homed group configuration service, this
Business just possesses environmentally friendly protective switching ability and double-returning protection switching ability.As shown in figure 4, in the case of normal non-fault, industry
Business goes out ring from ring on node A from the default host node B of dual homed；As shown in figure 5, when node B breaks down, ring protection just occurs
Switch with dual homed active-standby switch, node C is switched to the default host node of dual homed, business is from ring on node A, before reaching node B
After one node, looped network protection switching is carried out, business reaches node C from another protection passage, gone out by the host node C after switching
Change.
Wherein, node D and node E configures a dual homed group, and configures dual homed virtual point and the L3 sides of node D, E of L2 sides
Node D, E dual homed virtual point, wherein, the virtual bridged interface in L2 sides on node D and node E is configured to the virtual L2 ends of dual homed
Mouth (hereinafter referred to as dual homed L2VE)；It is (following that the virtual bridged interface in L3 sides on node D and node E is configured to the virtual L3 ports of dual homed
Claim dual homed L2VE)；The activestandby state of the virtual L2 ports of dual homed and the virtual L3 ports of dual homed and the activestandby state of place node are kept
Unanimously.A Tunnel (tunnel) is configured from node A to L2 sides dual homed imaginary point, then from node A base station access ports to D, E dual homed group
Configure L2VPN (two-layer virtual private network) business.BTS service reaches the host node of L2 dual homed groups after node A accesses
After landing L3 is gone to from dual homed L2VE.
Further, the dual homed virtual point of configuration node F and node G dual homed groups；VRF is configured to the dual homed virtual point of L3 sides
(Virtual Private Network route forwarding table)；And the tunnel between any two dual homed virtual point of L3 sides is configured, between configuration VRF
PEER (peer-to-peer mode).Dual homed L3VE is added in the VRF of node D, E dual homed virtual point.
It should be noted that core net UNI sides Liang Ge ports cannot invent a dual homed L3 port, because from LTE industry
For business requires, the two ports that its core net is seen are exactly two different L3 ports, configure different Port IP, so
Directly the two ports are added in the VRF of node F, G dual homed group.Wherein, core net UNI sides need to configure IP FRR and are used for
Switch UNI outlets when breaking down on the link of UNI sides two.
S2：When initial ring uplink failure or non-source egress break down, trigger looped network protection switching so that business from
Source goes out ring after dual homed slave node by dual homed host node；
It should be noted that in embodiments of the present invention, ring uplink failure or non-source egress break down and refer to except section
Point A, B, C, D, E, F, G break down beyond other failures.By taking access ring as an example, as shown in fig. 6, node A, B, C are formed
MPLS rings, node A are source, when any one place between node A and node B breaks down, trigger looped network protection switching, industry
Business goes out ring after dual homed slave node (node C) from source (node A) by dual homed host node (node B).
S2’：When dual homed host node failure on initial ring, cutting between looped network protection switching and dual homed main-standby nodes is triggered
Change, so that business goes out ring from the dual homed host node after switching.
By taking access ring as an example, as shown in fig. 6, when dual homed host node B breaks down, looped network protection switching is triggered, and will
Dual homed slave node C is switched to dual homed host node, business is gone out ring from the node C after switching.
A kind of guard method of LTE bearer networks of the embodiment of the present invention and system, by access ring, convergence ring and core ring
MPLS rings are configured to, when a failure occurs it, rely on looped network dual-homing protection technology, realize the looped network protection switching of business and double automatically
Return active-standby switch, so as to simplify the complexity of the configuration of network protection and O＆M, optimized by looped network dual-homing protection, can solved
Some application limitations in certainly current mobile retransmission network on multiple protective, overcoming the guard method of existing LTE bearer networks needs
It is superimposed a variety of protected modes, the defects of configuration and maintenance difficulties are big.
On the basis of above-described embodiment, the guard method of LTE bearer networks provided in an embodiment of the present invention further includes：
In the case where not breaking down, business biography is carried out by the dual homed host node of the multiprotocol label switching ring
Send.
It should be noted that in the case where not breaking down, business is preferentially carried out by the dual homed host node of each ring
Business transmits.For example, node B, D, F of the embodiment of the present invention are dual homed host node, and under normal circumstances, node A is received
Business core net is transmitted to by node B, D, F.
Specifically, in up direction：If based on node D, business is accessed from base station side, by access ring and converges net,
Ring under ring dual homed host node D, dual homed L2VE is consistent with L2 ring dual homed node D activestandby states, therefore, business by node D inside
L2VE is bridged into ingress D L3VE.Dual homed L3VE is consistent with L3 ring dual homed node activestandby states, then into ring on D nodes VRF；
Based on node E, then enter ring on E nodes VRF by bridge joint PW.If based on node F, land the main section of side ring dual homed in core
Ring under point (F), and it is forwarded to core net.
Down direction：
Business is accessed from core net, when core net is load balancing pattern, enters VRF by core dual homed host node F
Upper ring, by core ring master channel, reaches ring under bridge joint dual homed host node D, then entered by L3VE by node D internal bridgeds
L2VE, reaches ring under access point A, and is forwarded to base station finally by two layer service looped networks convergence ring, access ring.
Wherein, step S1：:It is multiprotocol label switching ring to configure access ring, convergence ring and core ring, is specifically included：
S11:The crossed node of the access ring and convergence ring is configured to the first dual homed host node and the standby section of the first dual homed
Point；
S12：The bridging nodes of the convergence ring and core ring are configured to the second dual homed host node and the standby section of the second dual homed
Point；
S13：The connecting node of the core ring and core net is configured to the 3rd dual homed host node and the standby section of the 3rd dual homed
Point.
Specifically, as shown in Fig. 2, node A is access point, configuration access ring and the crossed node B for converging ring are first pair
Return host node, access ring and the crossed node C for converging ring are the first dual homed slave node；The bridge joint section of configuration convergence ring and core ring
Point D is the second dual homed host node, and the bridging nodes E of configuration convergence ring and core ring is the second dual homed slave node；Configure core ring
Connecting node F with core net is the 3rd dual homed host node, and the connecting node G for configuring core ring and core net is standby for the 3rd dual homed
Node.
Wherein, in the case where not breaking down, by the dual homed host node of the multiprotocol label switching ring into industry
Business transmission, specifically includes：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by dual homed host node.
It should be noted that since when not breaking down, MPLS rings preferentially carry out business transmission by host node, so
When not breaking down, the BTS service that access node A is received preferentially passes through the first dual homed host node B, the second dual homed host node D
Core net is sent to the 3rd dual homed host node F.
Further, step S2 ' triggers looped network protection switching and dual homed is active and standby when dual homed host node failure on initial ring
Switching between node, so that business goes out ring from the dual homed host node after switching, specifically includes：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, ring is triggered
Net pretection switch, so that business is switched to alternate channel and is transmitted, and dual homed corresponding with the dual homed host node of failure is standby
Node is switched to dual homed host node, so that business goes out ring by the alternate channel from the dual homed host node after switching.
With actual scene for example, as shown in fig. 7, due to the first dual homed host node B failures, and B and C be access ring and
The crosspoint of ring is converged, looped network protection switching, the dual homed master of D, E, F, G can be completed by intersecting ring pretection switch ability
Standby state does not change.Up direction：Node C is switched to dual homed host node, and BTS service is accessed from node A, passes through alternate channel
Switch processing and go to node E from node C, because E is dual homed slave node, ring under dual homed host node D is given to, because L2VE follows ring
Dual homed activestandby state, so based on D nodes L2VE, goes out L2VPN from D points L2VE and goes to L3 sides, core ring side dual homed activestandby state
At this time based on D, coker thimble goes to F, and F is also dual homed master, and from ring under F nodes, UNI sides are selected the UNI from F nodes by IP FRR
It is given to controller in port.Down direction, business are accessed from node F, and since node F is dual homed host node, direct coker thimble, passes through
It is dual homed host node to cross ring passage and be given to node D, L3 side gusset D, lower core ring, based on node D L3VE, goes out L3 and turns L2, L2 sides
Node D is still dual homed host node, and upper convergence ring, it is found that west to failure, goes to east orientation alternate channel, by node E again from node C
Turn access ring to node A.
As shown in figure 8, due to the second dual homed host node D failures, dual homed master/slave switchover is triggered, node E is switched to double
Return host node, the L2VE and L3VE on E nodes are cut to master.Up direction：BTS service is accessed from node A, by node B, C
E is gone to, because node E has been switched to dual homed master, convergence ring goes to L3 sides through L2VE under E nodes, because of L3 sides E nodes
And it is main, from node E coker thimbles, find east orientation failure, it is dual homed to be switched to west and go to node G, G node to alternate channel
It is standby, core ring under F nodes is given to, UNI sides are selected to be given to controller from the uni port of F contacts by IP FRR.Down direction, industry
Business is accessed from F, and F is dual homed master, and coker thimble, it is found that west to failure, is switched to east orientation alternate channel, section is gone to by node G
Point E, node E are dual homed master, and lower core ring, goes to L2, E nodes are dual homed master, and upper convergence ring, finds by the L3VE of E nodes
West is switched to east orientation alternate channel, by node C to node B by access ring to node A to failure.
As shown in figure 9, the 3rd dual homed host node F breaks down, and the triggering dual homed master/slave switchover of dual homed node failure, G
Node will be cut to dual homed master, and the UNI sides FRR of the L3 on G nodes can also be switched to the uni port of G points.Up direction：Base station industry
Business is accessed from node A, by ring under node B to node D, is turned L3 coker thimbles through node D points L2VE, is found east orientation failure, press
Alternate channel passes through node E to node G, because node G has been switched to dual homed master, lower core ring, is selected from section by IP FRR
Point G uni ports are gone out.Down direction：Business is accessed from node G, and node G is dual homed master, and upper ring, it is found that west to failure, is switched
To east orientation alternate channel, node D is gone to by node E, node D is dual homed master, and lower ring, goes on L2 by the L3VE of node D
Ring is converged, by node B points to node A.
For step S2：When initial ring uplink failure or non-source egress break down, looped network protection switching is triggered, with
Business is set to go out ring by dual homed host node after dual homed slave node from source.With actual scene for example, as shown in Figure 10, save
Ring uplink between point B-D breaks down, and as shown in figure 11, module failure or veneer event occur for the port that node D meets node B
Failure shown in barrier, Figure 10 and Figure 11 can trigger looped network protection switching.Specifically, up direction：BTS service connects from node A
Enter, by access ring to node B, node B has found that east orientation failure is just switched to west to alternate channel, turns again to alternate channel by west
To node E, because node E is not dual homed master, ring under node D is gone to, because L2VE follows ring dual homed activestandby state, node
Based on D L2VE, go out L2VPN from node D L2VE and go to L3 sides, core ring side dual homed activestandby state is at this time based on node D, coker
Thimble goes to node F, and node F is also dual homed master, and from ring under node F, UNI sides are selected to turn from the uni port of node F by IP FRR
To controller.Down direction：Business is accessed from node F, and based on node F, direct coker thimble, D, L3 sides are given to by ring passage
Node D is dual homed master, lower core ring, based on D nodes L3VE, goes out L3 and turns L2, L2 side gussets D still based on, upper convergence ring, finds west
To failure, east orientation alternate channel is gone to, is given to node B by node E to node C, node B is given to node A through access ring again.
As shown in figure 12, node D connects the port module of node F or veneer breaks down, as shown in figure 13, node D and section
Link failure occurs between point F.Failure as shown in figure 12 and as shown in fig. 13 that failure also equal triggering MPLS environmental protection protective switchings, without
Influence the activestandby state of each dual homed node.
Up direction：Business turns L3 coker thimbles from node A by node B to node D, east orientation failure is found, by spare
Passage is through core ring under node E and node G to node F.Down direction：Business passes through node G and section from node F by alternate channel
Point E turns to converge ring on L2 to node D, by node B to node A.
To sum up, failure as Figure 7-9 breaks down for the dual homed host node of LTE bearer networks, triggers looped network guarantor
Protective switching simultaneously triggers the switching of dual homed main-standby nodes, and dual homed slave node is switched to dual homed host node carries out business transmission.As Figure 10-
Failure shown in 13 is the ring uplink failure or non-source egress point failure of LTE bearer networks, triggers looped network protection switching, industry
Business is accessed from source, and after the upper node for reaching malfunctioning node, former clockwise service route is switched as business counterclockwise
Flow direction (or former service route counterclockwise is switched as clockwise service route), reaches dual homed master after dual homed slave node
Node, then by ring under dual homed host node, so as to simplify network configuration and the complexity of O＆M.
On the other hand, the embodiment of the present invention additionally provides a kind of protection system of LTE bearer networks, the network include according to
Access ring, convergence ring and the core ring of secondary connection；The system comprises：
Configuration module, is multiprotocol label switching ring for configuring the access ring, convergence ring and core ring；
Looped network switches module, for when initial ring uplink failure or non-source egress break down, triggering looped network protection
Switch, so that business goes out ring after dual homed slave node from source by dual homed host node；
Active-standby switch module, for when dual homed host node failure on initial ring, triggering looped network protection switching and dual homed master
Switching between slave node, so that business goes out ring from the dual homed host node after switching.
A kind of protection system of LTE bearer networks of the embodiment of the present invention, access ring, convergence ring and core ring are configured to
MPLS rings, when a failure occurs it, rely on looped network dual-homing protection technology, realize that the looped network protection switching of business and dual homed are active and standby automatically
Switching, so as to simplify the complexity of the configuration of network protection and O＆M, is optimized by looped network dual-homing protection, can be solved current
Some application limitations in mobile retransmission network on multiple protective, overcoming the guard method of existing LTE bearer networks needs to be superimposed
The defects of a variety of protected modes, configuration and maintenance difficulties are big.
Wherein, the system also includes：
Business delivery module, in the case where not breaking down, passing through the dual homed of the multiprotocol label switching ring
Host node carries out business transmission.
Wherein, the configuration module specifically includes：
First dispensing unit, for by the access ring and convergence ring crossed node be configured to the first dual homed host node and
First dual homed slave node；
Second dispensing unit, for by it is described convergence ring and core ring bridging nodes be configured to the second dual homed host node and
Second dual homed slave node；
3rd dispensing unit, for by the connecting node of the core ring and core net be configured to the 3rd dual homed host node and
3rd dual homed slave node.
Wherein, the business delivery module is specifically used for：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by dual homed host node.
Wherein, the active-standby switch module is specifically used for：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, ring is triggered
Net pretection switch, so that business is switched to alternate channel and is transmitted, and dual homed corresponding with the dual homed host node of failure is standby
Node is switched to dual homed host node, so that business goes out ring by the alternate channel from the dual homed host node after switching.
As shown in figure 14, it is the structure diagram of a kind of electronic equipment provided in an embodiment of the present invention.The electronic equipment,
Including：Processor (processor) 1401, memory (memory) 1402, communication interface (Communications
Interface) 1403 and bus 1404；
Wherein,
The processor 1401, memory 1402, communication interface 1403 complete mutual lead to by the bus 1404
Letter；
The communication interface 1403 is used for the information transmission between the electronic equipment and the communication equipment of each node；
The processor 1401 is used to call the programmed instruction in the memory 1402, is implemented with performing above-mentioned each method
The method that example is provided, such as including：It is multiprotocol label switching ring to configure access ring, convergence ring and core ring；Work as initial ring
When uplink failure or non-source egress break down, looped network protection switching is triggered, so that business passes through dual homed slave node from source
Ring is gone out by dual homed host node afterwards；When dual homed host node failure on initial ring, looped network protection switching and dual homed main-standby nodes are triggered
Between switching so that business goes out ring from the dual homed host node after switching.
The embodiment of the present application provides a kind of computer program product, and the computer program product includes being stored in non-temporary
Computer program on state computer-readable recording medium, the computer program include programmed instruction, when described program instructs
When being computer-executed, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：Configuration access
Ring, convergence ring and core ring are multiprotocol label switching ring；When initial ring uplink failure or non-source egress break down, touch
Looped network protection switching is sent out, so that business goes out ring after dual homed slave node from source by dual homed host node；When dual homed on initial ring
During host node failure, the switching between looped network protection switching and dual homed main-standby nodes is triggered, so that business is from the dual homed after switching
Host node goes out ring.
The embodiment of the present application provides a kind of non-transient computer readable storage medium storing program for executing, and the non-transient computer is readable to deposit
Storage media stores computer instruction, and the computer instruction makes the computer perform the side that above-mentioned each method embodiment is provided
Method, such as including：It is multiprotocol label switching ring to configure access ring, convergence ring and core ring；When initial ring uplink failure or
When non-source egress breaks down, trigger looped network protection switching so that business from source after dual homed slave node by the main section of dual homed
Point out ring；When dual homed host node failure on initial ring, the switching between looped network protection switching and dual homed main-standby nodes is triggered, with
Business is set to go out ring from the dual homed host node after switching.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
The relevant hardware of programmed instruction is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The embodiments such as the test equipment of display device described above are only schematical, wherein described as separation
The unit of part description may or may not be it is physically separate, can be as the component that unit is shown or
It can not be physical location, you can with positioned at a place, or can also be distributed in multiple network unit.Can be according to reality
Border needs to select some or all of module therein to realize the purpose of this embodiment scheme.Those of ordinary skill in the art
In the case where not paying performing creative labour, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical solution substantially in other words contributes to the prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Order is used so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：Various embodiments above is rather than right only illustrating the technical solution of the embodiment of the present invention
It is limited；Although the embodiment of the present invention is described in detail with reference to foregoing embodiments, the ordinary skill of this area
Personnel should be understood：It can still modify the technical solution described in foregoing embodiments, or to which part
Or all technical characteristic carries out equivalent substitution；And these modifications or replacement, do not make the essence disengaging of appropriate technical solution
The scope of each embodiment technical solution of the embodiment of the present invention.
Claims (10)
1. a kind of guard method of LTE bearer networks, it is characterised in that the network includes sequentially connected access ring, convergence
Ring and core ring；The described method includes：
It is multiprotocol label switching ring to configure the access ring, convergence ring and core ring；
When initial ring uplink failure or non-source egress break down, looped network protection switching is triggered, so that business is passed through from source
Cross after dual homed slave node and ring is gone out by dual homed host node；
When dual homed host node failure on initial ring, the switching between looped network protection switching and dual homed main-standby nodes is triggered, so that
Business goes out ring from the dual homed host node after switching.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
In the case where not breaking down, business transmission is carried out by the dual homed host node of the multiprotocol label switching ring.
3. according to the method described in claim 2, it is characterized in that, configuration access ring, convergence ring and the core ring are more associations
Assess a bid for tender and sign commutative ring, specifically include：
The crossed node of the access ring and convergence ring is configured to the first dual homed host node and the first dual homed slave node；
The bridging nodes of the convergence ring and core ring are configured to the second dual homed host node and the second dual homed slave node；
The connecting node of the core ring and core net is configured to the 3rd dual homed host node and the 3rd dual homed slave node.
4. according to the method described in claim 3, it is characterized in that, described in the case where not breaking down, by described more
The dual homed host node of protocol label commutative ring carries out business transmission, specifically includes：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd dual homed are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by host node.
5. according to the method described in claim 3, it is characterized in that, described when dual homed host node failure on initial ring, triggering
Switching between looped network protection switching and dual homed main-standby nodes, so that business goes out ring from the dual homed host node after switching, specific bag
Include：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, triggering looped network is protected
Protective switching, so that business is switched to alternate channel and is transmitted, and by dual homed slave node corresponding with the dual homed host node of failure
Dual homed host node is switched to, so that business goes out ring by the alternate channel from the dual homed host node after switching.
6. a kind of protection system of LTE bearer networks, it is characterised in that the network includes sequentially connected access ring, convergence
Ring and core ring；The system comprises：
Configuration module, is multiprotocol label switching ring for configuring the access ring, convergence ring and core ring；
Looped network switches module, for when initial ring uplink failure or non-source egress break down, triggering looped network protection switching,
So that business goes out ring after dual homed slave node from source by dual homed host node；
Active-standby switch module, for when dual homed host node failure on initial ring, triggering looped network protection switching and the active and standby section of dual homed
Switching between point, so that business goes out ring from the dual homed host node after switching.
7. system according to claim 6, it is characterised in that the system also includes：
Business delivery module, in the case where not breaking down, passing through the main section of dual homed of the multiprotocol label switching ring
Click through industry business transmission.
8. system according to claim 7, it is characterised in that the configuration module specifically includes：
First dispensing unit, for the crossed node of the access ring and convergence ring to be configured to the first dual homed host node and first
Dual homed slave node；
Second dispensing unit, for the bridging nodes of the convergence ring and core ring to be configured to the second dual homed host node and second
Dual homed slave node；
3rd dispensing unit, for the connecting node of the core ring and core net to be configured to the 3rd dual homed host node and the 3rd
Dual homed slave node.
9. system according to claim 8, it is characterised in that the business delivery module is specifically used for：
In the case where not breaking down, the first dual homed host node, the second dual homed host node and the 3rd dual homed are passed sequentially through
The BTS service that receiving node receives is transmitted to the core net by host node.
10. system according to claim 8, it is characterised in that the active-standby switch module is specifically used for：
When the first dual homed host node, the second dual homed host node or the 3rd dual homed host node break down, triggering looped network is protected
Protective switching, so that business is switched to alternate channel and is transmitted, and by dual homed slave node corresponding with the dual homed host node of failure
Dual homed host node is switched to, so that business goes out ring by the alternate channel from the dual homed host node after switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610976923.XA CN108023800A (en) | 2016-11-03 | 2016-11-03 | A kind of guard method of LTE bearer networks and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976923.XA CN108023800A (en) | 2016-11-03 | 2016-11-03 | A kind of guard method of LTE bearer networks and device |
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Application publication date: 20180511 |