CN104753722B - A kind of DNI PW realization method and systems quickly switched - Google Patents
A kind of DNI PW realization method and systems quickly switched Download PDFInfo
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- CN104753722B CN104753722B CN201510161616.1A CN201510161616A CN104753722B CN 104753722 B CN104753722 B CN 104753722B CN 201510161616 A CN201510161616 A CN 201510161616A CN 104753722 B CN104753722 B CN 104753722B
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Abstract
The invention discloses a kind of DNI PW realization method and systems quickly switched, it is related to the communications field, this method includes：Intf_tbl tables are added in primary VPWS, l2ve_bridge_tbl tables are added in standby VPWS.If fault-free：Then uplink service is bridged to L3VPN in primary aggregation node by L2VE1 and L3VE1；Downlink business is bridged to primary VPWS in primary aggregation node by L3VE1 and L2VE1.If power down failure：Then uplink service is bridged to L3VPN in standby aggregation node by L2VE1 and L3VE1；Downlink business is bridged to standby VPWS in standby aggregation node by L2VE1 and L3VE1.If driver chuck or business fiber cut failure, then uplink service is bridged to DNI PW in standby aggregation node by L2VE1 and L2VE0；Downlink business is bridged to DNI PW in primary aggregation node by L3VE1 and L2VE0, and standby VPWS is bridged to by L2VE0 and L2VE1 in standby aggregation node.The present invention reduces the workload of software refreshing when switching generation, speed is switched in the business up-downgoing of improving.
Description
Technical field
The present invention relates to communication technical field, is specifically a kind of DNI-PW (Dual Node quickly switched
Interconnection Pseudo Wire, binode interconnection pseudo-wire) realization method and system.
Background technology
Move towards diversification with the rise and application of internet, internet more and more profoundly change people study,
Work and life style.To support the development of internet, the network size of telecom operators is increasing, and structure is also increasingly
Complexity, while higher requirement is proposed to the stability of network.
Carrier network is generally divided into backbone network and Metropolitan Area Network (MAN) double-layer structure, and backbone network can be divided into three levels again：Core
Layer, convergence-level, Access Layer.DNI-PW can be set between the convergence device of both ends, to realize with 1 VPWS (Virtual Pseudo
Wire Service, virtual private wire business) a few of (DNI-PW) protection N bars VPWS or all.
Break fine, primary aggregation node driver chuck, primary aggregation node power down when access ring primary path occurs in carrier network
During etc. failure, it is necessary to failure is detected in time, is rapidly completed the switching of flow, so as to ensure that business can be repaiied quickly
It is multiple, however traditional method exist it is several under several point defects：
1st, the descending N number of Host Status for needing to refresh in every VC (Virtual Circuit, virtual circuit) of switching causes
Switching time is grown.
2nd, control plane needs perception service switch status and increases software complexity.
3rd, during primary node power down, up switch needs one by one Refresh Services bridge status to cause switching time to be grown.
Therefore a kind of method realized DNI-PW and quickly switched is needed badly.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of DNI-PW realizations quickly switched
Method and system, The present invention reduces workload；It is that control plane is shielded before and after Signalling exchange is being switched in forwarding plane
Difference, the agreement of control plane need not perceive protection switching process；Improve and up switch speed.
To achieve the above objectives, the present invention adopts the technical scheme that：A kind of DNI-PW implementation methods quickly switched, should
For virtual private wire business VPWS networks, the VPWS networks include primary VPWS, standby VPWS, primary aggregation node,
Standby aggregation node and 3 layer virtual private network L3VPN, and binodal is provided between primary aggregation node and standby aggregation node
Point interconnection pseudo-wire DNI-PW, comprises the following steps：Step S1. adds intf_tbl tables in primary VPWS, in standby VPWS
Add l2ve_bridge_tbl tables；Wherein, intf_tbl tables be used for determine business enter primary VPWS, standby VPWS or
L3VPN, l2ve_bridge_tbl table are used to realize 2 layers of empty Instance Interface L2VE_ in layer 2 virtual private network network L2VPN outlet
Port associates with 3 layers of empty Instance Interface L3VE_Port's, and the L2VE_Port includes L2VE0 and L2VE1, L3VE_Port bag
Include L3VE1；Step S2. judges whether to break down, if so, then jumping to step S3；If it is not, then jump to step S5；Step
S3. failure judgement type, if the disconnected fibre of primary path, then step S4 is jumped to；If primary aggregation node driver chuck, then jump to
Step S7；If primary aggregation node power down, then step S6 is jumped to；Whether step S4. judges business by disconnected fibre, if so,
Then jump to step S7；If it is not, then jump to step S5；Step S5. uplink services primary aggregation node by L2VE1 and
L3VE1 is bridged to L3VPN；Downlink business is bridged to primary VPWS in primary aggregation node by L3VE1 and L2VE1；Terminate stream
Journey；Step S6. uplink services are bridged to L3VPN in standby aggregation node by L2VE1 and L3VE1；Downlink business is in standby remittance
Poly- node is bridged to standby VPWS by L2VE1 and L3VE1；Terminate flow；Step S7. uplink services lead in standby aggregation node
Cross L2VE1 and L2VE0 is bridged to DNI-PW, L3VPN is bridged to by L2VE0 and L3VE1 in primary aggregation node；Downlink business
DNI-PW is bridged to by L3VE1 and L2VE0 in primary aggregation node, bridged in standby aggregation node by L2VE0 and L2VE1
To standby aggregation node；Terminate flow.
On the basis of above-mentioned technical proposal, in step S1, the intf_tbl tables include dni_pw_ena, for conduct
DNI-PW enabler flags；Wherein, numerical value " 1 " represents that DNI-PW has been enabled；Dni_pw_status, it is used to indicate whether to occur
DNI-PW is switched；Wherein, numerical value " 1 " expression DNI-PW, which is switched, has occurred；Dni_pw_l2ve_port_id, for indicating DNI-
L2VE_Port corresponding to PW.
On the basis of above-mentioned technical proposal, judge whether business passes through the fine idiographic flow that breaks and be in step S4：Step
S41. in uplink service, primary VPWS searches intf_tbl tables；Step S42. judges whether dni_pw_ena value is " 1 ",
If so, then jump to step S43；If it is not, then jump to step S5；Step S43. judge dni_pw_status value whether be
" 1 ", if so, then jumping to step S7；If it is not, then jump to step S5.
On the basis of above-mentioned technical proposal, in step S1, the l2ve_bridge_tbl tables include flag_to_
L2ve, for as whether having associated L2VE_Port mark；Wherein, numerical value " 1 " represents to have associated L2VE_Port；ve_
Port_id, for indicating corresponding L2VE_Port or L3VE_Port.
On the basis of above-mentioned technical proposal, the idiographic flow of failure judgement type is in step S3：Step S31. is under
In industry business, standby VPWS searches l2ve_bridge_tbl tables；Step S32. judges whether flag_to_l2ve value is " 1 ",
If so, then jump to step S33；If it is not, then jump to step S34；Step S33. searches corresponding according to ve_port_id
L2VE_Port, jump to step S7；Step S34. searches the corresponding L3VE_Port of ve_port_id, jumps to step S6.
On the basis of above-mentioned technical proposal, in step S1, the L2VPN includes VPWS and DNI-PW.
On the basis of above-mentioned technical proposal, following steps are first carried out in step S6 and step S7：Uplink service exists
Access device completes pseudo-wire PW1:1 switches.
On the basis of above-mentioned technical proposal, the primary VPWS and standby VPWS include a plurality of pseudo-wire.
The present invention also provides a kind of DNI-PW quickly switched and realizes system, applied to virtual private wire business VPWS nets
Network, the VPWS networks include primary VPWS, standby VPWS, primary aggregation node, standby aggregation node and 3 layers of virtual private
Network L3VPN, and binode interconnection pseudo-wire DNI-PW, the system bag are provided between primary aggregation node and standby aggregation node
Include：Intf_tbl table add modules, for adding intf_tbl tables in primary VPWS, intf_tbl tables are used to determine that business is entered
Enter primary VPWS, standby VPWS or L3VPN；L2ve_bridge_tbl table add modules, for being added in standby VPWS
L2ve_bridge_tbl tables, l2ve_bridge_tbl tables are used to realize 2 layers of void in layer 2 virtual private network network L2VPN outlet
Instance Interface L2VE_Port associates with 3 layers of empty Instance Interface L3VE_Port's, the L2VE_Port include L2VE0 and
L2VE1, L3VE_Port include L3VE1；Fault type judge module, for judging whether to break down, if there is not event
Barrier, then the first business bridge joint indication signal is generated, and be sent to the first business bridge joint indicating module；If breaking down, judge
Fault type, if primary aggregation node power down, then the second business bridge joint indication signal is generated, and be sent to the second business bridge joint
Indicating module；If primary aggregation node driver chuck, then the 3rd business bridge joint indication signal is generated, and be sent to the 3rd business bridge joint
Indicating module；If the disconnected fibre of primary path, then whether business is judged by disconnected fibre, if so, then generating the bridge joint instruction of the 3rd business
Signal, and it is sent to the 3rd business bridge joint indicating module；If it is not, then generating the first business bridge joint indication signal, and it is sent to the
One business bridges indicating module；First business bridges indicating module, when bridging indication signal for receiving the first business, in instruction
Industry business is bridged to L3VPN in primary aggregation node by L2VE1 and L3VE1；Downlink business passes through in primary aggregation node
L3VE1 and L2VE1 is bridged to primary VPWS；Second business bridges indicating module, for receiving the second business bridge joint indication signal
When, instruction uplink service is bridged to L3VPN in standby aggregation node by L2VE1 and L3VE1；Downlink business is in standby convergence section
Point is bridged to standby VPWS by L2VE1 and L3VE1；3rd business bridges indicating module, refers to for receiving the 3rd business bridge joint
When showing signal, instruction uplink service is bridged to DNI-PW in standby aggregation node by L2VE1 and L2VE0, in primary convergence section
Point is bridged to L3VPN by L2VE0 and L3VE1；Downlink business is bridged in primary aggregation node by L3VE1 and L2VE0
DNI-PW, standby aggregation node is bridged to by L2VE0 and L2VE1 in standby aggregation node.
On the basis of above-mentioned technical proposal, the second business bridge joint indicating module receives the second business bridge joint instruction letter
Number when, first indicate uplink service access device complete PW1:1 switches；The 3rd business bridge joint indicating module receives the 3rd
When business bridges indication signal, indicate that uplink service completes pseudo-wire PW1 in access device first:1 switches.
The beneficial effects of the present invention are：
1st, the present invention is switched based on VPWS VC, it is not necessary to considers to include how many individual main frames, i.e. work in the VC business
Measure reduces N times (N is the host number in the VPWS business) relative to conventional method.
2nd, because switching action is by being deployed in BFD (the Bidirectional Forwarding of forwarding surface in the present invention
Detection, two-way converting testing mechanism)/OAM (Operation Administration and Maintenance, operation
Management service) trigger, and do not need master control to participate in.Therefore, although the path that business switches rear Signalling exchange is also required to therewith
Switch, but master control does not perceive protection switching process, and therefore, the present invention shields Signalling exchange for control plane in forwarding plane and existed
Front and rear difference is switched, the agreement of control plane need not perceive protection switching process.
3rd, l2ve_bridge_tbl tables are provided with the present invention, due to multiple standby VPWS outlet L2Ve_port
(L2Virtual Entity, 2 layers of empty Instance Interface) are identical, therefore, when primary aggregation node power down failure, standby convergence section
The uplink service of point switches a bridge status that need to refresh l2ve_bridge_tbl tables and a plurality of VPWS and DNI-PW can be achieved
Association, up speed is switched so as to improve.
Brief description of the drawings
Fig. 1 is DNI-PW Internal realization models schematic diagrames；
Fig. 2 is the flow chart for the DNI-PW implementation methods quickly switched in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to shown in Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of DNI-PW implementation methods quickly switched, and is applied to
VPWS networks, the VPWS networks include primary VPWS, standby VPWS, primary aggregation node, standby aggregation node and L3VPN
(L3Virtual Private Network, 3 layer virtual private networks), the primary VPWS and standby VPWS include a plurality of
PW (Pseudo Wire, pseudo-wire), and DNI-PW is provided between primary aggregation node and standby aggregation node, comprise the following steps：
Step S1. adds intf_tbl tables in primary VPWS, and l2ve_bridge_tbl tables are added in standby VPWS；
Wherein, intf_tbl tables are used to determine that business enters primary VPWS, standby VPWS or L3VPN, l2ve_bridge_tbl table are used
In realized in L2VPN (L2Virtual Private Network, layer 2 virtual private network network) outlet L2VE_Port with
L3VE_Port (L3Virtual Entity, 3 layers of empty Instance Interface) association, wherein, the L2VPN includes VPWS and DNI-
PW, the L2VE_Port, which include L2VE0 and L2VE1, L3VE_Port, includes L3VE1.
Preferably, the intf_tbl tables include dni_pw_ena, dni_pw_status and dni_pw_l2ve_port_
Id, wherein dni_pw_ena are used to be used as DNI-PW enabler flags；Specifically, represent that DNI-PW has been enabled by numerical value " 1 ".
Dni_pw_status is used to indicate whether that DNI-PW, which occurs, to be switched；Sent out specifically, representing that DNI-PW is switched by numerical value " 1 "
It is raw.Dni_pw_l2ve_port_id is used to indicate L2VE_Port corresponding to DNI-PW.Each PORT (interface)+VLAN
The combination of (Virtual Local Area Network, VLAN) is referred to as an interface, is referred to as herein
intf_tbl.Each intf_tbl associates a VPWS or L3VPN, so intf_tbl is determined, has also determined that industry
Be engaged in the VPWS or L3VPN that will enter.Aggregation node configures bridging traffic, because VLAN has planned in operator's networking
It is good, so need to only associate virtual interface (Ve_port) can complete the bridge joint of L2VPN business and L3VPN business.Wherein with it is primary
Virtual interface connected VPWS is referred to as vpws_l2ve_port_id, and the virtual interface being connected with DNI-PW is referred to as dni_pw_l2ve_
Port_id, the virtual interface being connected with L3VPN business are referred to as l3ve_port_id.
The l2ve_bridge_tbl tables include flag_to_l2ve and ve_port_id, and wherein flag_to_l2ve is used
In as whether having associated L2VE_Port mark；Wherein, numerical value " 1 " represents to have associated L2VE_Port.Ve_port_id is used
In the corresponding L2VE_Port or L3VE_Port of instruction.VPWS and DNI-PW is L2VPN business, and its outlet is all l2ve_
port_id.In uplink service, associating for primary VPWS and L3VPN is realized in the working condition of primary aggregation node, i.e., it is real
Existing vpws_l2ve_port_id and l3ve_port_id association, associating for DNI-PW and L3VPN is realized in switch status,
Realize dni_pw_l2ve_port_id and l3ve_port_id association.Generally speaking, it is exactly real in L2VPN outlet
Existing l2ve_port_id associates with l3ve_port_id's.The working condition of standby aggregation node to realize standby VPWS with
DNI-PW association, that is, vpws_l2ve_port_id and dni_pw_l2ve_port_id association are realized, will in switch status
Associating for standby VPWS and L3VPN is realized, that is, realizes vpws_l2ve_port_id and l3ve_port_id association.Total comes
Say, l2ve_port_id and l3ve_port_id or the pass with l2ve_port_id are exactly realized in L2VPN outlet
Connection.
Step S2. judges whether to break down, if so, then jumping to step S3；If it is not, then jump to step S5.
Step S3. failure judgement types, if the disconnected fibre of primary path, then jump to step S4；If primary aggregation node
Driver chuck, then jump to step S7；If primary aggregation node power down, then step S6 is jumped to；Wherein, the tool of failure judgement type
Body flow is：
For step S31. in downlink business, standby VPWS searches l2ve_bridge_tbl tables.
Step S32. judges whether flag_to_l2ve value is " 1 ", if so, then jumping to step S33；If it is not, then jump
Go to step S34.
Step S33. searches corresponding L2VE_Port according to ve_port_id, jumps to step S7.
Step S34. searches the corresponding L3VE_Port of ve_port_id, jumps to step S6.
Whether step S4. judges business by disconnected fibre, if it is not, then jumping to step S5；If so, then jump to step S7；
Wherein, judge whether business passes through the fine idiographic flow that breaks and be：
For step S41. in uplink service, primary VPWS searches intf_tbl tables.
Step S42. judges whether dni_pw_ena value is " 1 ", if so, then jumping to step S43；If it is not, then redirect
To step S5.
Step S43. judges whether dni_pw_status value is " 1 ", if so, then jumping to step S7；If it is not, then jump
Go to step S5.
Step S5. uplink services are bridged to L3VPN in primary aggregation node by L2VE1 and L3VE1；Downlink business is in master
Primary VPWS is bridged to by L3VE1 and L2VE1 with aggregation node；Terminate flow.
Step S6. uplink services complete PW1 in access device:1 switches, and standby aggregation node by L2VE1 and
L3VE1 is bridged to L3VPN；Downlink business is bridged to standby VPWS in standby aggregation node by L2VE1 and L3VE1；Terminate stream
Journey.
Step S7. uplink services complete PW1 in access device:1 switches, and standby aggregation node by L2VE1 and
L2VE0 is bridged to DNI-PW, and L3VPN is bridged to by L2VE0 and L3VE1 in primary aggregation node；Downlink business is in primary remittance
Poly- node is bridged to DNI-PW by L3VE1 and L2VE0, and standby remittance is bridged to by L2VE0 and L2VE1 in standby aggregation node
Poly- node；Terminate flow.
The embodiment of the present invention also provides a kind of DNI-PW quickly switched and realizes system, applied to virtual private wire business
VPWS networks, the VPWS networks include primary VPWS, standby VPWS, primary aggregation node, standby aggregation node and 3 layers of void
Intend dedicated network L3VPN, and provided with binode interconnection pseudo-wire DNI-PW between primary aggregation node and standby aggregation node, it is described
System includes：
Intf_tbl table add modules, for adding intf_tbl tables in primary VPWS, intf_tbl tables are used to determine
Business enters primary VPWS, standby VPWS or L3VPN.
L2ve_bridge_tbl table add modules, for adding l2ve_bridge_tbl tables, l2ve_ in standby VPWS
Bridge_tbl tables are used to realize 2 layers of empty Instance Interface L2VE_Port and 3 layers of void in layer 2 virtual private network network L2VPN outlet
Instance Interface L3VE_Port association, the L2VE_Port, which includes L2VE0 and L2VE1, L3VE_Port, includes L3VE1.
Fault type judge module, for judging whether to break down, if not breaking down, generate the first business bridge
Indication signal is connect, and is sent to the first business bridge joint indicating module；If breaking down, failure judgement type, if primary remittance
Poly- node power down, then the second business bridge joint indication signal is generated, and be sent to the second business bridge joint indicating module；If primary remittance
Poly- node driver chuck, then the 3rd business bridge joint indication signal is generated, and be sent to the 3rd business bridge joint indicating module；If primary road
The disconnected fibre in footpath, then judge that business whether by disconnected fibre, if so, then generating the 3rd business bridge joint indication signal, and is sent to the 3rd industry
Business bridge joint indicating module；If it is not, then generating the first business bridge joint indication signal, and it is sent to the first business bridge joint indicating module.
First business bridges indicating module, and when bridging indication signal for receiving the first business, instruction uplink service is in master
L3VPN is bridged to by L2VE1 and L3VE1 with aggregation node；Downlink business passes through L3VE1 and L2VE1 in primary aggregation node
It is bridged to primary VPWS.
Second business bridges indicating module, when bridging indication signal for receiving the second business, indicates uplink service first
Pseudo-wire PW1 is completed in access device:1 switches, and then indicates that uplink service passes through L2VE1 and L3VE1 bridges in standby aggregation node
It is connected to L3VPN；Downlink business is bridged to standby VPWS in standby aggregation node by L2VE1 and L3VE1.
3rd business bridges indicating module, when bridging indication signal for receiving the 3rd business, indicates uplink service first
Pseudo-wire PW1 is completed in access device:1 switches, and then indicates that uplink service passes through L2VE1 and L2VE0 bridges in standby aggregation node
DNI-PW is connected to, L3VPN is bridged to by L2VE0 and L3VE1 in primary aggregation node；Downlink business leads in primary aggregation node
Cross L3VE1 and L2VE0 is bridged to DNI-PW, standby aggregation node is bridged to by L2VE0 and L2VE1 in standby aggregation node.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (6)
- A kind of 1. DNI-PW implementation methods quickly switched, applied to virtual private wire business VPWS networks, the VPWS nets Network includes primary VPWS, standby VPWS, primary aggregation node, standby aggregation node and 3 layer virtual private network L3VPN, and Binode interconnection pseudo-wire DNI-PW is provided between primary aggregation node and standby aggregation node, it is characterised in that including following step Suddenly：Step S1. adds intf_tbl tables in primary VPWS, and l2ve_bridge_tbl tables are added in standby VPWS；Wherein, Intf_tbl tables are used to determine that business enters primary VPWS, standby VPWS or L3VPN, l2ve_bridge_tbl table and is used for 2 Realize 2 layers of empty Instance Interface L2VE_Port's and 3 layers of empty Instance Interface L3VE_Port in layer virtual private network L2VPN outlet Association, the L2VE_Port, which includes L2VE0 and L2VE1, L3VE_Port, includes L3VE1；Step S2. judges whether to break down, if so, then jumping to step S3；If it is not, then jump to step S5；Step S3. failure judgement types, if the disconnected fibre of primary path, then jump to step S4；If primary aggregation node driver chuck, Then jump to step S7；If primary aggregation node power down, then step S6 is jumped to；Whether step S4. judges business by disconnected fibre, if so, then jumping to step S7；If it is not, then jump to step S5；Step S5. uplink services are bridged to L3VPN in primary aggregation node by L2VE1 and L3VE1；Downlink business is in primary remittance Poly- node is bridged to primary VPWS by L3VE1 and L2VE1；Terminate flow；Step S6. uplink services are bridged to L3VPN in standby aggregation node by L2VE1 and L3VE1；Downlink business is in standby remittance Poly- node is bridged to standby VPWS by L2VE1 and L3VE1；Terminate flow；Step S7. uplink services are bridged to DNI-PW in standby aggregation node by L2VE1 and L2VE0, in primary aggregation node L3VPN is bridged to by L2VE0 and L3VE1；Downlink business is bridged to DNI- in primary aggregation node by L3VE1 and L2VE0 PW, standby aggregation node is bridged to by L2VE0 and L2VE1 in standby aggregation node；Terminate flow；In step S1, the intf_tbl tables include dni_pw_ena, for as DNI-PW enabler flags；Wherein, numerical value " 1 " Represent that DNI-PW has been enabled；Dni_pw_status, it is used to indicate whether that DNI-PW, which occurs, to be switched；Wherein, numerical value " 1 " represents DNI-PW, which is switched, have been occurred；Dni_pw_l2ve_port_id, for indicating L2VE_Port corresponding to DNI-PW；The l2ve_bridge_tbl tables include flag_to_l2ve, for as whether having associated L2VE_Port mark； Wherein, numerical value " 1 " represents to have associated L2VE_Port；Ve_port_id, for indicating corresponding L2VE_Port or L3VE_ Port；The idiographic flow of failure judgement type is in step S3：For step S31. in downlink business, standby VPWS searches l2ve_ Bridge_tbl tables；Step S32. judges whether flag_to_l2ve value is " 1 ", if so, then jumping to step S33；If it is not, Then jump to step S34；Step S33. searches corresponding L2VE_Port according to ve_port_id, jumps to step S7；Step S34. the corresponding L3VE_Port of ve_port_id are searched, jump to step S6；Judge whether business passes through the fine idiographic flow that breaks and be in step S4：In uplink service, primary VPWS is looked into step S41. Look for intf_tbl tables；Step S42. judges whether dni_pw_ena value is " 1 ", if so, then jumping to step S43；If it is not, then Jump to step S5；Step S43. judges whether dni_pw_status value is " 1 ", if so, then jumping to step S7；If it is not, Then jump to step S5.
- 2. the DNI-PW implementation methods as claimed in claim 1 quickly switched, it is characterised in that：In step S1, the L2VPN Including VPWS and DNI-PW.
- 3. the DNI-PW implementation methods as claimed in claim 1 quickly switched, it is characterised in that in step S6 and step S7 Following steps are first carried out：Uplink service completes pseudo-wire PW1 in access device:1 switches.
- 4. the DNI-PW implementation methods as claimed in claim 1 quickly switched, it is characterised in that：The primary VPWS and standby VPWS includes a plurality of pseudo-wire.
- 5. a kind of DNI-PW quickly switched realizes system, applied to virtual private wire business VPWS networks, the VPWS nets Network includes primary VPWS, standby VPWS, primary aggregation node, standby aggregation node and 3 layer virtual private network L3VPN, and Binode interconnection pseudo-wire DNI-PW is provided between primary aggregation node and standby aggregation node, it is characterised in that the system bag Include：Intf_tbl table add modules, for adding intf_tbl tables in primary VPWS, intf_tbl tables are used to determine business Into primary VPWS, standby VPWS or L3VPN；L2ve_bridge_tbl table add modules, for adding l2ve_bridge_tbl tables, l2ve_ in standby VPWS Bridge_tbl tables are used to realize 2 layers of empty Instance Interface L2VE_Port and 3 layers of void in layer 2 virtual private network network L2VPN outlet Instance Interface L3VE_Port association, the L2VE_Port, which includes L2VE0 and L2VE1, L3VE_Port, includes L3VE1；Fault type judge module, for judging whether to break down, if not breaking down, generate the first business bridge joint and refer to Show signal, and be sent to the first business bridge joint indicating module；If breaking down, failure judgement type, if primary aggregation node power down, then the second business bridge joint instruction letter is generated Number, and it is sent to the second business bridge joint indicating module；If primary aggregation node driver chuck, then the 3rd business bridge joint indication signal is generated, and be sent to the bridge joint instruction of the 3rd business Module；If the disconnected fibre of primary path, then whether business is judged by disconnected fibre, if so, the 3rd business bridge joint indication signal is then generated, And it is sent to the 3rd business bridge joint indicating module；If it is not, then generating the first business bridge joint indication signal, and it is sent to the first business Bridge indicating module；First business bridges indicating module, and when bridging indication signal for receiving the first business, instruction uplink service is in primary remittance Poly- node is bridged to L3VPN by L2VE1 and L3VE1；Downlink business is bridged in primary aggregation node by L3VE1 and L2VE1 To primary VPWS；Second business bridges indicating module, and when bridging indication signal for receiving the second business, instruction uplink service is in standby remittance Poly- node is bridged to L3VPN by L2VE1 and L3VE1；Downlink business is bridged in standby aggregation node by L2VE1 and L3VE1 To standby VPWS；3rd business bridges indicating module, and when bridging indication signal for receiving the 3rd business, instruction uplink service is in standby remittance Poly- node is bridged to DNI-PW by L2VE1 and L2VE0, and L3VPN is bridged to by L2VE0 and L3VE1 in primary aggregation node； Downlink business is bridged to DNI-PW in primary aggregation node by L3VE1 and L2VE0, standby aggregation node by L2VE0 and L2VE1 is bridged to standby aggregation node；The intf_tbl tables include dni_pw_ena, for as DNI-PW enabler flags；Wherein, numerical value " 1 " represents DNI- PW has been enabled；Dni_pw_status, it is used to indicate whether that DNI-PW, which occurs, to be switched；Wherein, numerical value " 1 " represents that DNI-PW is switched Occur；Dni_pw_l2ve_port_id, for indicating L2VE_Port corresponding to DNI-PW；The l2ve_bridge_tbl tables include flag_to_l2ve, for as whether having associated L2VE_Port mark； Wherein, numerical value " 1 " represents to have associated L2VE_Port；Ve_port_id, for indicating corresponding L2VE_Port or L3VE_ Port；The fault type judge module judges whether that the idiographic flow of failure is：In downlink business, standby VPWS is looked into Look for l2ve_bridge_tbl tables；Whether the value for judging flag_to_l2ve is " 1 ", if so, being searched according to ve_port_id corresponding L2VE_Port, generation the 3rd business bridge joint indication signal, and be sent to the 3rd business bridge joint indicating module；If it is not, search The corresponding L3VE_Port of ve_port_id, generation the second business bridge joint indication signal, and it is sent to the second business bridge joint instruction mould Block；The fault type judge module judges whether business passes through the fine idiographic flow that breaks and be：It is primary in uplink service VPWS searches intf_tbl tables；Whether the value for judging dni_pw_ena is " 1 ", if it is not, generation the first business bridge joint indication signal, And it is sent to the first business bridge joint indicating module；If so, whether the value for judging dni_pw_status is " 1 ", if so, generation the Three business bridge indication signal, and are sent to the 3rd business bridge joint indicating module；If it is not, generation the first business bridge joint instruction letter Number, and it is sent to the first business bridge joint indicating module.
- 6. the DNI-PW as claimed in claim 5 quickly switched realizes system, it is characterised in that the second business bridge joint refers to When showing that module receives the second business bridge joint indication signal, indicate that uplink service completes PW1 in access device first:1 switches；It is described When 3rd business bridge joint indicating module receives the 3rd business bridge joint indication signal, indicate that uplink service is completed in access device first Pseudo-wire PW1:1 switches.
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| CN201510161616.1A CN104753722B (en) | 2015-04-08 | 2015-04-08 | A kind of DNI PW realization method and systems quickly switched |
| PCT/CN2015/093679 WO2016161802A1 (en) | 2015-04-08 | 2015-11-03 | Method and system for realizing quick changeover of dni-pw |
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| CN110166286A (en) * | 2019-04-30 | 2019-08-23 | 中时讯通信建设有限公司 | A kind of IP RAN network system |
| CN111683307B (en) * | 2020-05-22 | 2022-05-20 | 烽火通信科技股份有限公司 | Method and system for accessing service under OLT (optical line terminal) multi-stage exchange |
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| CN102035681A (en) * | 2010-12-17 | 2011-04-27 | 中兴通讯股份有限公司 | Link protection method and system for virtual private network |
| CN102148713A (en) * | 2011-05-11 | 2011-08-10 | 烽火通信科技股份有限公司 | Linear protection switching method applicable to large-capacity PTN (packet transport network) device |
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| CN104753722A (en) | 2015-07-01 |
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