CN107592251A - The method of shared ring transannular networking structure and transannular Business Stream forwarding - Google Patents
The method of shared ring transannular networking structure and transannular Business Stream forwarding Download PDFInfo
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- CN107592251A CN107592251A CN201610538314.6A CN201610538314A CN107592251A CN 107592251 A CN107592251 A CN 107592251A CN 201610538314 A CN201610538314 A CN 201610538314A CN 107592251 A CN107592251 A CN 107592251A
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- ring
- tunnel
- transannular
- node
- business stream
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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
Abstract
The present invention provides a kind of method of shared ring transannular networking structure and transannular Business Stream forwarding, and the networking structure includes：Entrance ring；Discharge ring；Carry the service tunnel of the transannular Business Stream；The entrance ring is configured with into ring tunnel and the first protection path；The discharge ring is configured with out ring tunnel and the second protection path；The entrance ring is also configured with minor axis tunnel and the 3rd protection path from main span link point to standby transannular node；In the networking structure in addition to carrying the service tunnel of transannular business; also configure into ring tunnel, go out ring tunnel and master to standby tunnel and corresponding ring protection tunnel; so as to simplify configuration; both solved the problems, such as that multipoint fault business can not recover or configure linear protection complexity, take resource; and enter ring tunnel, it is main can be entered to standby tunnel with difference by multiple, gone out circling point transannular Business Stream and share, improve service deployment speed and resource utilization.
Description
Technical field
The present invention relates to communication technical field, particularly relates to a kind of shared ring transannular networking structure and transannular Business Stream forwarding
Method.
Background technology
As shown in figure 1, annular networking is exactly not have beginning and end on circuit, each equipment of networking is participated in all at one
On the circular path of closing.
As shown in Fig. 2 there are two paths in looped network protection：One operating path and a Protection path.Operating path and
The transmission direction of Protection path is opposite.
After operating path breaks down, two adjacent nodes of trouble point can know failure at once, and make corresponding
Protect switching measure, flow be switched to Protection path in opposite direction up by operating path, by reverse Protection path " around
Road " arrives at the next node equipment of trouble point, has thus bypassed malfunctioning node.In Fig. 3, the work between node B and node C
Path is broken, and then node B and node C cooperates, and Business Stream is carried out into protection switching.B is responsible for Business Stream being switched to protection
Path, transmit round about, after C is transferred to, C is responsible for Business Stream to switch back into operating path again, and such Business Stream is with regard to suitable
Sharp ground has flowed from D goes out.
Shared ring transannular networking generally be made up of multiple tangent rings, the transannular node of working service process be defined based on save
Point, another transannular node are defined as slave node.As shown in Figure 4, Figure 5, business from landing ring some node under ring, business
The ring from entrance ring, break-through ring may be passed through and reach landing ring, it is also possible to directly reach landing ring without break-through ring.
Transannular business refers to the ingress of Business Stream in a ring, and egress is in another ring.
In the prior art, when multipoint fault occurs in a certain side ring net in transannular networking or multiple spot event all occurs in both sides looped network
During barrier, due to looped network protection can only handle it is monocyclic there is the scene of Single Point of Faliure, so Business Stream can not be forwarded from a ring
Business recovery is realized to another ring or for the linear LSP protections of a large amount of transannulars of transannular business configuration.
The content of the invention
It is an object of the invention to provide a kind of method that shared ring transannular networking structure and transannular Business Stream forward, solve
In the prior art cause because looped network protection can only handle the monocyclic scene for Single Point of Faliure occur when multiple spot occurs in transannular networking
The problem of Business Stream forwarding can not be realized during failure.
In order to achieve the above object, the embodiment of the present invention provides a kind of shared ring transannular networking structure, including：
Entrance ring where the beginning node for the transannular Business Stream being pre-configured with；
Discharge ring where the tail node of the transannular Business Stream；The entrance ring passes through two transannulars with the discharge ring
Node forms tangent structure, wherein, described two transannular nodes are main transannular node and standby transannular node；
The service tunnel of the transannular Business Stream is carried, the service tunnel is to begin to pass through the master from the beginning node
Transannular node is to the tunnel of the tail node；
The entrance ring be configured with ring tunnel and with it is described enter corresponding first protection path in ring tunnel；Wherein, institute
State into ring tunnel be from standby transannular node to the major diameter tunnel of main span link point, first protection path be with it is described enter ring tunnel
The opposite loop tunnel of the transmission direction in road；
The discharge ring be configured with out ring tunnel and with it is described go out corresponding second protection path in ring tunnel；Wherein, institute
State out major diameter of the ring tunnel for the tail node from the adjacent node of the tail node of the transannular Business Stream to the transannular Business Stream
Tunnel, second protection path be with it is described go out ring tunnel the opposite loop tunnel of transmission direction；
The entrance ring is also configured with the minor axis tunnel from main span link point to standby transannular node, and with the minor axis tunnel
3rd protection path corresponding to road, the 3rd protection path are the annular tunnel opposite with the transmission direction in the minor axis tunnel
Road.
Wherein, when the discharge ring is on the right of the entrance ring, it is described go out ring tunnel described in transannular Business Stream tail
The adjacent node of node is the clockwise adjacent node of the tail node of the transannular Business Stream；
When the discharge ring is on the right of the entrance ring, it is described go out ring tunnel in the transannular Business Stream tail node
Adjacent node for the transannular Business Stream tail node anticlockwise adjacent node.
Wherein, each node of the shared ring transannular networking structure can the adjacent two sections of paths of detection node whether deposit
In failure.
Wherein, each node of the shared ring transannular networking structure is capable of the main span link point of ring where sensing node
Information and standby transannular node information, and the information of the main span link point of adjacent ring and the letter of standby transannular node can be perceived
Breath.
The embodiment of the present invention also provides a kind of application, and shared ring transannular networking structure carries out transannular Business Stream as described above
The method of forwarding, including：
If the service tunnel of carrying transannular Business Stream does not break down, the transannular Business Stream enters business tunnel from beginning node
Road, by the tail node up to the transannular Business Stream that is forwarded to of the service tunnel；
If the service tunnel for carrying transannular Business Stream breaks down, the transannular Business Stream enters the entrance from beginning node
Ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, second protection path,
The minor axis tunnel and/or the 3rd protection path are forwarded to the tail node up to the transannular Business Stream.
Wherein, if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters institute from beginning node
That states entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, it is described second protect
Protect the step for being forwarded to the tail node up to the transannular Business Stream of tunnel, the minor axis tunnel and/or the 3rd protection path
Suddenly, including：
If the main span link point of entrance ring and standby transannular node do not have failure, and between main span link point and standby transannular node
Path there is no a failure, and the service tunnel of the carrying transannular Business Stream breaks down, and the transannular Business Stream is from beginning node
Enter ring tunnel into the entrance ring, by it is described enter ring tunnel and first protection path be forwarded to up to main span ring
Node, the transannular Business Stream received the feeding discharge ring is gone out into ring tunnel and described second by the main span link point
Protection path is simultaneously forwarded to the tail node up to the transannular Business Stream.
Wherein, if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters institute from beginning node
That states entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, it is described second protect
Protect the step for being forwarded to the tail node up to the transannular Business Stream of tunnel, the minor axis tunnel and/or the 3rd protection path
Suddenly, including：
If the main span link point of entrance ring is faulty or path between main span link point and standby transannular node is faulty,
The transannular Business Stream enters the entrance ring from beginning node and enters ring tunnel, enters ring tunnel and described first to protect by described
Being forwarded to up to standby transannular node for shield tunnel, going out for the discharge ring is sent the transannular Business Stream received into by standby transannular node
Ring tunnel and second protection path are simultaneously forwarded to the tail node up to the transannular Business Stream.
Wherein, if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters institute from beginning node
That states entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, it is described second protect
Protect the step for being forwarded to the tail node up to the transannular Business Stream of tunnel, the minor axis tunnel and/or the 3rd protection path
Suddenly, including：
If adjacent two sections of paths of the main span link point of discharge ring are faulty, the transannular Business Stream enters from beginning node
The entrance ring enters ring tunnel, by it is described enter ring tunnel and first protection path be forwarded to up to main span link
Point, the transannular Business Stream received is sent into the minor axis tunnel and the 3rd protection path by the main span link point and forwarded
Reach standby transannular node, the transannular Business Stream feeding discharge ring is gone out into ring tunnel and described the by the standby transannular node
Two protection paths are simultaneously forwarded to the tail node up to the transannular Business Stream.
The above-mentioned technical proposal of the present invention at least has the advantages that：
In the method for shared ring transannular networking structure and transannular the Business Stream forwarding of the embodiment of the present invention, by with inserting ring
Tunnel, go out ring tunnel, lead and arrive standby tunnel and corresponding protection path so that shared transannular networking structure can be handled in networking
The problem of transannular business can not be recovered when there is multipoint fault；Looped network protection technology is made full use of, has both solved multipoint fault industry
Business can not recover or configure that linear LSP protection is complicated, takes the problem of resource, and enter ring tunnel, it is main can be with to standby tunnel
There is difference to enter circling point, gone out circling point transannular Business Stream by multiple and share, substantially increase service deployment speed and resource utilization.
Brief description of the drawings
Fig. 1 represents annular networking schematic diagram in the prior art；
Fig. 2 represents that annular networking operating path is with Protection path schematic diagram in the prior art；
Fig. 3 represents that looped network switches schematic diagram in the prior art；
Fig. 4 represents to share one of ring transannular networking schematic diagram in the prior art；
Fig. 5 represents to share the two of ring transannular networking schematic diagram in the prior art；
Fig. 6 represents shared ring transannular networking structure schematic diagram provided in an embodiment of the present invention；
Fig. 7 represents that the embodiment of the present invention provides shared looped network transannular networking structure, enters ring tunnel, goes out ring tunnel, be main to standby
Tunnel and corresponding protection path and Business Stream fault-free forwarding schematic diagram；
Fig. 8 represents the Business Stream transannular forwarding schematic diagram of embodiment 1 provided by the invention；
Fig. 9 represents the Business Stream transannular forwarding schematic diagram of embodiment 2 provided by the invention；
Figure 10 represents the Business Stream transannular forwarding schematic diagram of embodiment 3 provided by the invention；
Figure 11 represents the Business Stream transannular forwarding schematic diagram of embodiment 4 provided by the invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The embodiment of the present invention provides a kind of shared ring transannular networking structure, including：
Entrance ring where the beginning node for the transannular Business Stream being pre-configured with；
Discharge ring where the tail node of the transannular Business Stream；The entrance ring passes through two transannulars with the discharge ring
Node forms tangent structure, wherein, described two transannular nodes are main transannular node and standby transannular node；As shown in fig. 6, in advance
The operating path of the transannular Business Stream of configuration is A->B->C->D, then the ring 1 where beginning node A is entrance ring, where tail node D
Ring 2 be discharge ring；Ring 1 and ring 2 form tangent structure by node B and node F, wherein, the transannular Business Stream being pre-configured with
By node B, then node B is main transannular node, and node F is standby transannular node.
The service tunnel of the transannular Business Stream is carried, the service tunnel is to begin to pass through the master from the beginning node
Transannular node is to the tunnel of the tail node；As shown in fig. 6, the shared ring transannular networking structure is configured with service tunnel, its industry
Business tunnel is A->B->C->D tunnel, if its service tunnel fault-free, transannular Business Stream completes forwarding by service tunnel.
The entrance ring be configured with ring tunnel and with it is described enter corresponding first protection path in ring tunnel；Wherein, institute
State into ring tunnel be from standby transannular node to the major diameter tunnel of main span link point, first protection path be with it is described enter ring tunnel
The opposite loop tunnel of the transmission direction in road.As shown in fig. 6, the entrance ring (ring 1) for enjoying ring transannular networking structure be configured with into
Ring tunnel T1, it is the major diameter tunnel from node F to node B to enter ring tunnel T1；Because node F and node B is on a ring, then save
Point F includes two to node B tunnel, and one is F->G->H->A->B, another is F->B；In the embodiment of the present invention, this enters
Ring tunnel is major diameter tunnel longer in above-mentioned two tunnels, is relatively understood, the forward-path for entering ring tunnel is F->G->H->
A->B.Further, the first protection path is the loop tunnel opposite with entering the transmission direction in ring tunnel, as shown in fig. 6, this
One protection path is T1-1；Direction due to entering ring tunnel is clockwise, then the direction of the first protection path is counterclockwise.
Specifically, Business Stream is sent into ring tunnel T1 (and first protection path) and is forwarded to by Business Stream beginning node A
Main span link point.
The discharge ring be configured with out ring tunnel and with it is described go out corresponding second protection path in ring tunnel；Wherein, institute
State out major diameter of the ring tunnel for the tail node from the adjacent node of the tail node of the transannular Business Stream to the transannular Business Stream
Tunnel, second protection path be with it is described go out ring tunnel the opposite loop tunnel of transmission direction；As shown in fig. 6, this is common
The discharge ring (ring 2) for enjoying ring transannular networking structure is configured with out ring tunnel T3, and it is the adjacent node from tail node D to go out ring tunnel T3
E to node D major diameter tunnel.Identical with entering ring tunnel, because node E and node D is on a ring, then node E is to node D's
Tunnel includes two, and one is E->F->B->C->D, another is E->D；In the embodiment of the present invention, it is above-mentioned that this, which goes out ring tunnel,
Longer major diameter tunnel in two tunnels, relatively understand, the forward-path for going out ring tunnel is E->F->B->C->D.Further
, the second protection path is the loop tunnel opposite with going out the transmission direction in ring tunnel, as shown in fig. 6, second protection path
For T3-1；Direction due to going out ring tunnel is clockwise, then the direction of the second protection path is counterclockwise.
Specifically, the Business Stream received can be sent into this by main span link point B goes out ring tunnel T3 (and second protection path)
And it is forwarded to tail node D.
The entrance ring is also configured with the minor axis tunnel from main span link point to standby transannular node, and with the minor axis tunnel
3rd protection path corresponding to road, the 3rd protection path are the annular tunnel opposite with the transmission direction in the minor axis tunnel
Road.As shown in fig. 6, entrance ring (ring 1) is also configured with the minor axis tunnel T5 from main span link point B to standby transannular node F；Same
Because node B and node F are on same ring, two, node B to node F tunnel, it is respectively then：B->A->H->G->F with
And B->F；In the embodiment of the present invention, the minor axis tunnel is the short tunnel in above-mentioned two tunnels, is relatively understood, the minor axis tunnel
For B->F.Further, the 3rd protection path is the loop tunnel opposite with the transmission direction in minor axis tunnel, as shown in fig. 6, should
3rd protection path is T5-1, because minor axis tunnel T5 transmission direction is clockwise, the then transmission direction of the 3rd protection path
To be counterclockwise.
Specifically, when main span link point B find discharge ring it is adjacent two sections it is all faulty when (BC sections and BF sections have former
Barrier), Business Stream is sent into minor axis tunnel T5 by main span link point B, and is forwarded to standby transannular node F, is bypassed by standby transannular node F
Work flow is sent to tail node by the main span link point B of discharge ring.And when Business Stream reaches standby transannular node, standby transannular node
It is whether reachable that the main span link point of entrance ring can be analyzed, if reachable, main span link point is transferred to, if unreachable, around entrance
Business Stream is forwarded directly to discharge ring by the main span link point of ring.
Further, in the above embodiment of the present invention, because tail node D adjacent node has two, respectively node C
With node E；For different situations, its tail node D adjacent node is different, specifically, when the discharge ring is in the entrance
The right of ring, it is described go out ring tunnel described in transannular Business Stream tail node adjacent node be the transannular Business Stream periproct
The clockwise adjacent node of point；
When the discharge ring is on the right of the entrance ring, it is described go out ring tunnel in the transannular Business Stream tail node
Adjacent node for the transannular Business Stream tail node anticlockwise adjacent node.
Specifically, in the above embodiment of the present invention, the equal configuration section detection technique of each node in networking, i.e., this is shared
Each node of ring transannular networking structure can the adjacent two sections of paths of detection node whether there is failure.
Further, each node configures transannular protection technique in networking, the shared ring transannular networking structure it is every
Individual node is capable of the information of main span link point and the information of standby transannular node of sensing node place ring, and can perceive adjacent
The information of the information of the main span link point of ring and standby transannular node.I.e. each node can ring where sensing node active and standby section
The active and standby nodal information of point information and adjacent ring.
To sum up, also configure into ring tunnel in addition to carrying the service tunnel of transannular business in the embodiment of the present invention, go out ring tunnel
Road and master arrive standby tunnel and corresponding ring protection tunnel, so as to simplify configuration.Ring is entered by easy configuration several, gone out
Ring, master arrive standby tunnel and corresponding protection path, and when there is multipoint fault with regard to that can handle in networking, transannular business can not be recovered
The problem of；Compared with prior art, looped network protection technology is made full use of, both having solved multipoint fault business can not recover or configure
Linear LSP protections are complicated, take the problem of resource, and enter ring tunnel, it is main to standby tunnel can by it is multiple enter with difference,
Go out circling point transannular Business Stream to share, substantially increase service deployment speed and resource utilization.
In order to preferably realize above-mentioned purpose, the present invention implements also to provide a kind of application shared ring transannular group as described above
The method that web frame carries out transannular Business Stream forwarding, including：
If the service tunnel of carrying transannular Business Stream does not break down, the transannular Business Stream enters business tunnel from beginning node
Road, by the tail node up to the transannular Business Stream that is forwarded to of the service tunnel；
If the service tunnel for carrying transannular Business Stream breaks down, the transannular Business Stream enters the entrance from beginning node
Ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, second protection path,
The minor axis tunnel and/or the 3rd protection path are forwarded to the tail node up to the transannular Business Stream.
Specifically, if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters from beginning node
The entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, described second
Protection path, the minor axis tunnel and/or the 3rd protection path are forwarded to up to the tail node of the transannular Business Stream
Step, including：
If the main span link point of entrance ring and standby transannular node do not have failure, and between main span link point and standby transannular node
Path there is no a failure, and the service tunnel of the carrying transannular Business Stream breaks down, and the transannular Business Stream is from beginning node
Enter ring tunnel into the entrance ring, by it is described enter ring tunnel and first protection path be forwarded to up to main span ring
Node, the transannular Business Stream received the feeding discharge ring is gone out into ring tunnel and described second by the main span link point
Protection path is simultaneously forwarded to the tail node up to the transannular Business Stream.
Or if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters institute from beginning node
That states entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, it is described second protect
Protect the step for being forwarded to the tail node up to the transannular Business Stream of tunnel, the minor axis tunnel and/or the 3rd protection path
Suddenly, including：
If the main span link point of entrance ring is faulty or path between main span link point and standby transannular node is faulty,
The transannular Business Stream enters the entrance ring from beginning node and enters ring tunnel, enters ring tunnel and described first to protect by described
Being forwarded to up to standby transannular node for shield tunnel, going out for the discharge ring is sent the transannular Business Stream received into by standby transannular node
Ring tunnel and second protection path are simultaneously forwarded to the tail node up to the transannular Business Stream.
Or if the service tunnel of carrying transannular Business Stream breaks down, the transannular Business Stream enters institute from beginning node
That states entrance ring enters ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, it is described second protect
Protect the step for being forwarded to the tail node up to the transannular Business Stream of tunnel, the minor axis tunnel and/or the 3rd protection path
Suddenly, including：
If adjacent two sections of paths of the main span link point of discharge ring are faulty, the transannular Business Stream enters from beginning node
The entrance ring enters ring tunnel, by it is described enter ring tunnel and first protection path be forwarded to up to main span link
Point, the transannular Business Stream received is sent into the minor axis tunnel and the 3rd protection path by the main span link point and forwarded
Reach standby transannular node, the transannular Business Stream feeding discharge ring is gone out into ring tunnel and described the by the standby transannular node
Two protection paths are simultaneously forwarded to the tail node up to the transannular Business Stream.
In order to it is clearer description the application provide shared ring transannular networking structure and transannular Business Stream forwarding method,
Work flow forwarding method is described when failure to service tunnel with reference to specific embodiment be present, first as shown in fig. 7,
Ring 1, ring 2 can be used as entrance ring or discharge ring.The Business Stream F1 of ring 1 to ring 2 enters ring in the node A of ring 1, and the node D of ring 2 goes out ring,
Transannular operating path is A->B->C->D.The Business Stream F2 of ring 2 to ring 1 enters ring in the node D of ring 2, and the node A of ring 1 goes out ring, transannular work
It is D- to make path>C->B->A.
As shown in fig. 7, in ring 1 with ring tunnel T1 is inserted, its forward-path is F->G->H->A->B, and by inverse time needle ring
Row tunnel T1-1 is protected.Ring tunnel T2 is configured in ring 1, its forward-path is H->G->F->B->A, and by annular tunnel clockwise
Road T2-1 is protected.Ring 1 be configured with host node to the tunnel T5 of slave node, its forward-path be B->F, and by anti-clockwise loops for example
Tunnel T5-1 is protected.
As shown in fig. 7, configuring one in ring 2 enters ring tunnel T4, its forward-path is F->E->D->C->B, and by up time
Pin loop tunnel T4-1 is protected.One is configured in ring 2 and goes out ring tunnel T3, and its forward-path is E->F->B->C->D, and by the inverse time
Pin loop tunnel T3-1 is protected.Ring 2 be configured with host node to the tunnel T6 of slave node, its forward-path be B->F, and by suitable
Hour hands loop tunnel T6-1 is protected.
Embodiment 1
As shown in figure 8, node B breaks down, i.e. side B-A, B-F section of ring 1 is all faulty, and side B-C, B-F section of ring 2 has event
Barrier.Business Stream F1, Business Stream F2 repeating process are described below.
Business Stream F1 enters ring in node A, and F1 is sent into tunnel T1 by A, and T1 detects that section A-B is faulty, is switched to protection tunnel
Road T1-1, F1 is forwarded to node F, F in the counterclockwise direction by T1-1 and detects the side B-F segment faults of ring 1, inquiry T1-1 associations
Transannular protecting tunnel group table, finds it oneself is slave node, and the next node of T1-1 forward-paths terminates in advance for host node B, F
T1-1, service label, inquiry tag forward table are solved, the outgoing interface for finding F1 is T3, and F1 feeding rings 2 are gone out into ring tunnel T3, T3
Detect that the side F-B sections of ring 2 are faulty, be switched to protection path T3-1, F1 is forwarded to by node C by T3-1 in the counterclockwise direction,
Node C detects C-B segment faults, switchback to T3, and it is T3 tail nodes that F1 is forwarded into node D, D by T3, D terminations T3, and F1 is being saved
Point D goes out ring.
Business Stream F2 enters ring in node D, and F2 feeding rings 2 are entered ring tunnel T4, work flow is sent into node C, C by T4 by D
It was found that C-B sections are faulty, protection path T4-1 is switched to, by T4-1 along forwarding the packet to node F, F detects ring 2 clockwise
Side B-F segment faults, the transannular protecting tunnel group table of F inquiry T4-1 associations, find it oneself is slave node, under T4-1 forward-paths
One node is host node B, and F terminates T4-1 in advance, solves service label, inquiry tag forward table, the outgoing interface for finding F2 is
T2, T2 have found that the side F-B sections of ring 1 are faulty, are switched to protection path T2-1, and F2 is forwarded into node A along clockwise put by T2-1,
A detects that section A-B is faulty, switchback to T2, and A is T2 caudal knots point, and A terminations T2, F2 go out ring in node A.
Embodiment 2
As shown in figure 9, side A-B, B-F section of ring 1 breaks down.Business Stream F1, Business Stream F2 repeating process are described below.
F1 clicks and enters ring in A, and A is sent into T1 by F1, and T1 detects A-B failures, is switched to T1-1, T1-1 is along counterclockwise by F1 turns
It is sent to node F, F and detects the side B-F segment faults of ring 1, F inquires about the transannular protecting tunnel group table of T1-1 associations, finds it oneself is standby
Node, the next nodes of T1-1 forward-paths are host node B, and F terminates T1-1 in advance, solves service label, inquiry tag turns
To deliver, the outgoing interface for finding F1 is T3, and F1 is sent into T3 by F, and it is T3 caudal knots point that F1 is forwarded into node D, D by T3, D termination T3,
F1 goes out ring in node D.
F2 enters ring in node D, and F2 is sent into T4 by D, and F2 is forwarded to node B by T4, because node B is T4 caudal knot point, B is whole
T4 is tied, solves service label, inquiry tag forward table, the outgoing interface for finding F2 is T2, incoming interface T4.Because the entering of business,
Outlet is all tunnel, and it may be host node that can now determine node B.T2 transannular relaying configuration table is inquired about, it is found that node B is
The host node of ring 1, and ring 1 is adjacent to ring 2；Equally, T4 transannular relaying configuration table is inquired about, it is the main section of ring 2 to find B
Point, and the adjacent ring of ring 2 is ring 1.The host node that node B is ring 1 and ring 2 can confirm that by T2, T4 transannular relaying configuration,
And because adjacent segments of the outgoing interface T2 in node B is all unreachable, F2 importing rings 2 are led standby tunnel by B, so as to around the event of ring 1
Hinder point B；All looped network protecting tunnel groups bound in the side B-F of B traversal rings 2, if the caudal knot point of protection group is node F, just will
F2 is forwarded by the protection group TG2 inquired, because the side B-F links of ring 2 are normal, message is directly sent into T6 and is forwarded to by TG2
Node F, F are T6 caudal knot point, F termination T6, solve service label, inquiry tag forward table, and discovery outgoing interface is T2, and T2 is detected
Go out B-F segment faults, be switched to T2-1, detect section A-B failure along F2 is forwarded into node A, A clockwise by T2-1, switchback arrives
T2, A are T2 caudal knots point, and A terminations T2, F2 go out ring in node A.
Embodiment 3
As shown in Figure 10, side A-B, B-F section of ring 1 is faulty, and the side B-F sections of ring 2 are faulty.Business Stream F1, F2 are described below
Repeating process.
F1 clicks and enters ring in A, and F1 clicks and enters ring in A, and F2 is sent into T1 by A, and T1 detects A-B failures, is switched to T1-1, T1-1 edges
F1 is forwarded to node F, F counterclockwise and detects that the side B-F sections of ring 1 are faulty, the transannular protecting tunnel group of F inquiry T4-1 associations
Table, find it oneself is slave node, the next nodes of T4-1 forward-paths is host node B, and F terminates T1-1 in advance, solves business
Label, inquiry tag forward table, the outgoing interface for finding F1 are T3, and F1 is sent into T3 by F, and T3 detects B-F segment faults, is switched to
T3-1, F1 is detected B-C segment faults, switchback to T3, F1 is forwarded into section by T3 along node C, C is forwarded to counterclockwise by T3-1
Point D, D are T3 caudal knots point, and D terminations T3, F1 go out ring in node D.
F2 clicks and enters ring in D, and F2 is sent into T4 by D, and it is T4 caudal knots point that F2 is forwarded to node B, B by T4, B termination T4, solves industry
Business label, looks into Label Forwarding Information Base, and the outgoing interface for finding F2 is T2, incoming interface T4, and node B is confirmed using the method for embodiment 2
This node is the host node of transannular 1 and ring 2, and because adjacent segments of the outgoing interface T2 in B is all unreachable, F2 is imported the master of ring 2 and arrived by B
Standby tunnel, so as to bypass the malfunctioning node B of ring 1；All looped network protecting tunnel groups bound in the side B-F of B traversal rings 2, if protected
The caudal knot point of shield group is that node F, F are just forwarded F2 by the protection group TG2 inquired, because the side B-F link failures of ring 2, TG2
The protection path T6-1 that F2 is sent to TG2 is forwarded to node F, F discovery B-F segment faults, switchback to T6, F in the counterclockwise direction
For T6 caudal knots point, F termination T6, service label, inquiry tag forward table are solved, discovery outgoing interface is T2, and detects the side B- of ring 1
F failures, are switched to T2-1, and F2 is forwarded into node A, A by T2-1, and switchback is to T2 again, and A is T2 caudal knots point, and A termination T2, F2 is in T2
Go out ring.
Embodiment 4
As shown in figure 11, side A-B, B-F section of ring 1 is faulty, and the side B-C sections of ring 2 are faulty.Business Stream F1, F2 are described below
Repeating process.
F1 clicks and enters ring in A, and F1 is sent into T1 by A, and T1 detects section A-B failure, is switched to T1-1, by F1 in the counterclockwise direction
It is forwarded to node F, F and detects B-F segment faults, the looped network protecting tunnel table of inquiry T1-1 bindings, it is slave node to find this node,
The next node of T1-1 forward-paths is host node B, and F terminates T1-1 in advance, solves service label, inquiry tag forward table,
It was found that F1 outgoing interface is T3, F1 is forwarded to node B by T3, and B detects B-C segment faults, is switched to T3-1, by T3-1 along the inverse time
F1 is forwarded to node C, C and detects B-C failures by pin direction, and switchback to T3, it is T3 caudal knots that F1 is forwarded into node D, D by T3
Point, D termination T3, solves service label, inquiry tag forward table, F1 is gone out into ring in D.
F2 clicks and enters ring in D, and F1 is sent into T4 by D, and F1 is forwarded into node C, C by T4 detects B-C segment faults, switch to
T4-1, F2 is forwarded to node B, B by T4-1 and detects B-C segment faults, switchback to T4, B is T4 caudal knots point, B termination T4, is solved
Service label, inquiry tag forward table, discovery outgoing interface is T2, incoming interface T4, B confirm this section using the method for embodiment 2
Point for transannular 1 and ring 2 host node, and because the side gusset B of ring 1 it is adjacent two sections it is all faulty, F2 is sent into the master of ring 2 using B and arrived
Standby tunnel, so as to bypass the malfunctioning node B of ring 1；All looped network protecting tunnel groups bound in the side B-F of B traversal rings 2, if protected
The caudal knot point of shield group is node F, is just forwarded F2 by the protection group TG2 inquired, F2 is sent into master and arrives standby work tunnel by TG2
Road T6, it is T6 caudal knots point that F2 is forwarded into node F, F by T6, F termination T6, solves service label, inquiry tag forward table, finds
Outgoing interface is T2, and F detects B-F segment faults, is switched to T2-1, is examined F2 along node A, node A is forwarded to clockwise by T2-1
Section A-B failure, switchback to T2 are measured, A is T2 caudal knots point, and A terminations T2, F2 go out ring in node A.
To sum up, in the above embodiment of the present invention, by with insert ring tunnel, go out ring tunnel, master arrive standby tunnel and phase
The protection path answered so that shared transannular networking structure, which can handle in networking transannular business when there is multipoint fault, to be recovered
The problem of；Looped network protection technology is made full use of, both having solved multipoint fault business can not recover or configure linear LSP protections again
It is miscellaneous, take the problem of resource, and enter ring tunnel, it is main to standby tunnel can by it is multiple with difference enter circling point, go out circling point across
Ring Business Stream is shared, and substantially increases service deployment speed and resource utilization.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
- A kind of 1. shared ring transannular networking structure, it is characterised in that including：Entrance ring where the beginning node for the transannular Business Stream being pre-configured with；Discharge ring where the tail node of the transannular Business Stream；The entrance ring passes through two transannular nodes with the discharge ring Tangent structure is formed, wherein, described two transannular nodes are main transannular node and standby transannular node；The service tunnel of the transannular Business Stream is carried, the service tunnel is to begin to pass through the main span ring from the beginning node Node is to the tunnel of the tail node；The entrance ring be configured with ring tunnel and with it is described enter corresponding first protection path in ring tunnel；Wherein, it is described enter Ring tunnel be from standby transannular node to the major diameter tunnel of main span link point, first protection path be with it is described enter ring tunnel The opposite loop tunnel of transmission direction；The discharge ring be configured with out ring tunnel and with it is described go out corresponding second protection path in ring tunnel；Wherein, it is described go out Ring tunnel is the major diameter tunnel of the tail node from the adjacent node of the tail node of the transannular Business Stream to the transannular Business Stream, Second protection path be with it is described go out ring tunnel the opposite loop tunnel of transmission direction；The entrance ring is also configured with the minor axis tunnel from main span link point to standby transannular node, and with the minor axis tunnel pair The 3rd protection path answered, the 3rd protection path are the loop tunnel opposite with the transmission direction in the minor axis tunnel.
- 2. shared ring transannular networking structure as claimed in claim 1, it is characterised in that when the discharge ring is in the entrance ring The right, it is described go out ring tunnel described in transannular Business Stream tail node adjacent node be the transannular Business Stream tail node Clockwise adjacent node；When the discharge ring is on the right of the entrance ring, it is described go out ring tunnel in the transannular Business Stream tail node phase Neighbors is the anticlockwise adjacent node of the tail node of the transannular Business Stream.
- 3. shared ring transannular networking structure as claimed in claim 1 or 2, it is characterised in that the shared ring transannular networking knot Each node of structure can the adjacent two sections of paths of detection node whether there is failure.
- 4. shared ring transannular networking structure as claimed in claim 1 or 2, it is characterised in that the shared ring transannular networking knot Each node of structure is capable of the information of main span link point and the information of standby transannular node of sensing node place ring, and can feel Know the information of the main span link point of adjacent ring and the information of standby transannular node.
- 5. a kind of shared ring transannular networking structure applied as described in claim any one of 1-4 carries out transannular Business Stream forwarding Method, it is characterised in that including：If the service tunnel of carrying transannular Business Stream does not break down, the transannular Business Stream enters service tunnel from beginning node, By the tail node up to the transannular Business Stream that is forwarded to of the service tunnel；If the service tunnel for carrying transannular Business Stream breaks down, the transannular Business Stream enters the entrance ring from beginning node Enter ring tunnel, by it is described enter ring tunnel, first protection path, it is described go out ring tunnel, second protection path, described Minor axis tunnel and/or the 3rd protection path are forwarded to the tail node up to the transannular Business Stream.
- 6. method as claimed in claim 5, it is characterised in that if the service tunnel of carrying transannular Business Stream breaks down, institute State transannular Business Stream and enter the entrance ring from beginning node and enter ring tunnel, by it is described enter ring tunnel, the first protection tunnel Road, it is described go out ring tunnel, second protection path, the minor axis tunnel and/or the 3rd being forwarded to for protection path reach The step of tail node of the transannular Business Stream, including：If the main span link point of entrance ring and standby transannular node do not have failure, and the road between main span link point and standby transannular node Footpath does not have failure, and the service tunnel of the carrying transannular Business Stream breaks down, and the transannular Business Stream enters from beginning node The entrance ring enters ring tunnel, by it is described enter ring tunnel and first protection path be forwarded to up to main span link Point, the transannular Business Stream received the feeding discharge ring is gone out into ring tunnel and second guarantor by the main span link point Shield tunnel is simultaneously forwarded to the tail node up to the transannular Business Stream.
- 7. such as claim method as claimed in claim 5, it is characterised in that if the service tunnel of carrying transannular Business Stream goes out Existing failure, the transannular Business Stream enter ring tunnel from what beginning node entered the entrance ring, by it is described enter ring tunnel, described the One protection path, it is described go out ring tunnel, second protection path, the minor axis tunnel and/or the 3rd protection path The step of being forwarded to up to the tail node of the transannular Business Stream, including：If the main span link point of entrance ring is faulty or path between main span link point and standby transannular node is faulty, described Transannular Business Stream enters the entrance ring from beginning node and enters ring tunnel, by it is described enter ring tunnel and the first protection tunnel Road is forwarded to up to standby transannular node, and the transannular Business Stream received the feeding discharge ring is gone out into ring tunnel by standby transannular node Road and second protection path are simultaneously forwarded to the tail node up to the transannular Business Stream.
- 8. method as claimed in claim 5, it is characterised in that if the service tunnel of carrying transannular Business Stream breaks down, institute State transannular Business Stream and enter the entrance ring from beginning node and enter ring tunnel, by it is described enter ring tunnel, the first protection tunnel Road, it is described go out ring tunnel, second protection path, the minor axis tunnel and/or the 3rd being forwarded to for protection path reach The step of tail node of the transannular Business Stream, including：If adjacent two sections of paths of the main span link point of discharge ring are faulty, described in the transannular Business Stream from beginning node entrance Entrance ring enters ring tunnel, by it is described enter ring tunnel and first protection path be forwarded to up to main span link point, by The transannular Business Stream received is sent into the minor axis tunnel and the 3rd protection path and forwarded by the main span link point to be reached Standby transannular node, the transannular Business Stream feeding discharge ring is gone out into ring tunnel and second guarantor by the standby transannular node Shield tunnel is simultaneously forwarded to the tail node up to the transannular Business Stream.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538314.6A CN107592251A (en) | 2016-07-08 | 2016-07-08 | The method of shared ring transannular networking structure and transannular Business Stream forwarding |
| PCT/CN2017/092194 WO2018006863A1 (en) | 2016-07-08 | 2017-07-07 | Shared inter-ring network structure, and method of forwarding inter-ring service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538314.6A CN107592251A (en) | 2016-07-08 | 2016-07-08 | The method of shared ring transannular networking structure and transannular Business Stream forwarding |
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| CN107592251A true CN107592251A (en) | 2018-01-16 |
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| CN201610538314.6A Withdrawn CN107592251A (en) | 2016-07-08 | 2016-07-08 | The method of shared ring transannular networking structure and transannular Business Stream forwarding |
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| CN (1) | CN107592251A (en) |
| WO (1) | WO2018006863A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726287A (en) * | 2020-07-13 | 2020-09-29 | 中国联合网络通信集团有限公司 | Ring network protection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868620A (en) * | 2011-07-06 | 2013-01-09 | 中兴通讯股份有限公司 | Inter-ring service protection method and device |
| CN102891787A (en) * | 2011-07-20 | 2013-01-23 | 中兴通讯股份有限公司 | Shared path-based looped network tunnel configuration method, and method and system for switching service |
| US20130336116A1 (en) * | 2012-06-15 | 2013-12-19 | Cisco Technology, Inc. | Congestion-based notification during fast reroute operations in stateful path computation element environments |
| CN105207871A (en) * | 2014-06-25 | 2015-12-30 | 中兴通讯股份有限公司 | Double-looped network switching protection method and device |
| CN105337856A (en) * | 2014-08-13 | 2016-02-17 | 中兴通讯股份有限公司 | Cross-domain service processing method, device and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1511227A1 (en) * | 2003-08-27 | 2005-03-02 | Alcatel | Ring network system |
| CN102684973B (en) * | 2011-03-09 | 2017-03-29 | 中兴通讯股份有限公司 | A kind of method and system of looped network protection |
-
2016
- 2016-07-08 CN CN201610538314.6A patent/CN107592251A/en not_active Withdrawn
-
2017
- 2017-07-07 WO PCT/CN2017/092194 patent/WO2018006863A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868620A (en) * | 2011-07-06 | 2013-01-09 | 中兴通讯股份有限公司 | Inter-ring service protection method and device |
| CN102891787A (en) * | 2011-07-20 | 2013-01-23 | 中兴通讯股份有限公司 | Shared path-based looped network tunnel configuration method, and method and system for switching service |
| US20130336116A1 (en) * | 2012-06-15 | 2013-12-19 | Cisco Technology, Inc. | Congestion-based notification during fast reroute operations in stateful path computation element environments |
| CN105207871A (en) * | 2014-06-25 | 2015-12-30 | 中兴通讯股份有限公司 | Double-looped network switching protection method and device |
| CN105337856A (en) * | 2014-08-13 | 2016-02-17 | 中兴通讯股份有限公司 | Cross-domain service processing method, device and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726287A (en) * | 2020-07-13 | 2020-09-29 | 中国联合网络通信集团有限公司 | Ring network protection method and device |
| CN111726287B (en) * | 2020-07-13 | 2022-01-25 | 中国联合网络通信集团有限公司 | Ring network protection method and device |
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|---|---|
| WO2018006863A1 (en) | 2018-01-11 |
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