CN104753794A - Routing information transmitting method and system and route reflector - Google Patents
Routing information transmitting method and system and route reflector Download PDFInfo
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Abstract
The invention discloses a routing information transmitting method. The method comprises the following step that: a VPN (Virtual Private Network) virtual route reflector (VRR) determines routing information with a received identifier made for routing information required by a service access router (AR) in the received routing information according to the identifier, and transmits the routing information to the AR. The invention also discloses a routing information transmitting system and the VRR. According to the technical scheme in the embodiment of the invention, the VRR only needs to transmit the routing information required by the AR to the AR according to the identifier without transmitting useless routing information, so that the transmission frequency of a useless route in a network is lowered; the resource processing loads of the VRR and the AR are relieved; and the accuracy of routing information transmission is increased.
Description
Technical field
The present invention relates to route Transfer Technology, be specifically related to based on the routing iinformation transmission method of Internet protocol (IP, Internet Protocol) bearer network, system and Router Reflector.
Background technology
Along with the development of Softswitch technology, customer edge (the CE of business soft switch end office (EO), CustomerEdge Equipment) frequently access in IP bearer network, consequently leads to the sharply increase of network route entry, a large amount of useless routing iinformations frequent transmission in IP bearer network; As the VPN (virtual private network) (VPN of route test layer equipment, Virtual Private Network) Router Reflector (VRR, Virtual Route Reflector) come from different business couple in router (AR owing to receiving and processing, Access Router) or provider edge equipment (PE, Provider Edge Equipment) routing iinformation, useless routing iinformation exchanges continually between VRR and VRR, between VRR and AR, makes VRR, AR often occur the situation that cpu resource utilizes not.
Fig. 1 is the schematic diagram realizing routing iinformation transmission in IP bearer network; As shown in Figure 1, the communication equipment comprised has: AR1, AR2 and VRR.When AR1 receives the routing iinformation of other AR or other VRR transmission, the routing property of the route output attribute carried in the routing iinformation received and local definition compared, time consistent, this routing iinformation is added in the routing table of self by AR1; Time inconsistent, this routing iinformation is done discard processing by AR1.AR1 by the routing iinformation recorded in routing table as A network segment routing iinformation and B network segment routing iinformation are passed to VRR, these two routing iinformations are passed to AR2 again by VRR, the routing property of AR2 to the route output attribute carried in the B network segment routing iinformation received and local definition compares, and is abandoned by the B network segment routing iinformation when comparison is inconsistent.In fact, AR2 only needs A network segment routing iinformation, does not need B network segment routing iinformation, and B network segment routing iinformation, as the useless route of AR2, transmits frequently and easily causes network congestion even to paralyse.Moreover, in AR side, for the routing iinformation that self is useless, need to abandon again after reception, comparison, in the middle of invisible, increased the weight of the resource processing load of AR; In VRR side, after a large amount of routing iinformations is passed to this VRR by all AR equipment that Radix Angelicae Sinensis belongs to same VRR, be easy to the resource overload causing this VRR.
Summary of the invention
For solving the technical problem of existing existence, embodiments provide a kind of routing iinformation transmission method, system and Router Reflector, useless route transmission frequency in a network can be reduced, alleviate VRR, AR process resource burden, improve the accuracy that routing iinformation transmits.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
Embodiments provide a kind of routing iinformation transmission method, described method comprises:
According to the mark made the routing iinformation required for service access router AR received, VPN (virtual private network) VPN Router Reflector VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR.
In such scheme, described VRR determines the routing iinformation with described mark in the routing iinformation received, and comprising:
Described VRR is according to described mark, and the routing iinformation received self screens, and filters out the routing iinformation with described mark.
The embodiment of the present invention additionally provides a kind of routing iinformation transmission method, and described method comprises:
When VPN (virtual private network) VPN Router Reflector VRR is as when going out the recipient of outbound route filter ORF, according to the mark made the routing iinformation required for the service access router AR as ORF transmit leg, described VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to the described AR as ORF transmit leg;
When AR is as when going out the recipient of outbound route filter ORF, according to the mark made the routing iinformation required for the VRR as ORF transmit leg, AR as recipient determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to the described VRR as ORF transmit leg.
In such scheme, described VRR determines the routing iinformation with described mark in the routing iinformation received, and comprising:
Described VRR is according to the mark made the routing iinformation required for transmit leg AR received, and the routing iinformation received self screens, and filters out the routing iinformation with described mark, and returns the routing iinformation extremely described AR with described mark.
In such scheme, the described AR as recipient determines the routing iinformation with described mark in the routing iinformation received, and comprising:
When AR as recipient receives the mark made the routing iinformation required for the VRR as transmit leg, the routing iinformation received self screens, filter out the routing iinformation with described mark, and return the routing iinformation extremely described VRR with described mark.
Embodiments provide a kind of VPN (virtual private network) VPN Router Reflector VRR, described VRR comprises: receiving element, determining unit and transfer unit; Wherein,
Described receiving element, during for receiving the mark made the routing iinformation of service access router AR, triggers described determining unit;
Described determining unit, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit, for transmitting described routing iinformation to described AR.
In such scheme, described determining unit, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
The embodiment of the present invention additionally provides a kind of routing iinformation transmission system, and described system comprises: service access router AR and VPN (virtual private network) VPN Router Reflector VRR; Wherein,
When described VRR is as when going out transmit leg as described ORF of the recipient of outbound route filter ORF, AR,
Described AR, for sending the mark made the routing iinformation of self;
Described VRR, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR;
When AR is as transmit leg as described ORF of the recipient of described ORF, VRR,
Described VRR, for sending the mark made the routing iinformation of self;
Described AR, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described transmit leg VRR.
In such scheme, the VRR of the described recipient as described ORF comprises: receiving element, determining unit and transfer unit; Wherein,
Described receiving element, during for receiving the mark made the routing iinformation of the AR as described ORF transmit leg, triggers described determining unit;
Described determining unit, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit, for transmitting described routing iinformation to described AR.
In such scheme, described determining unit, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
Routing iinformation transmission method, system and Router Reflector that the embodiment of the present invention provides, according to the mark made the routing iinformation required for service access router AR received, VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR.Utilize the technical scheme of the embodiment of the present invention, according to described mark, VRR only need transmit routing iinformation required for AR to AR, do not need to transmit useless routing iinformation, thus decrease useless route transmission frequency in a network, alleviate VRR, AR process resource burden, improve the accuracy that routing iinformation transmits.
Accompanying drawing explanation
Fig. 1 is the schematic diagram realizing routing iinformation transmission in IP bearer network;
Fig. 2 is the flow chart of the first embodiment of routing iinformation transmission method provided by the invention;
Fig. 3 is the flow chart of the second embodiment of routing iinformation transmission method provided by the invention;
Fig. 4 is the flow chart of the 3rd embodiment of routing iinformation transmission method provided by the invention;
Fig. 5 is the first application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention;
Fig. 6 is the second application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention;
Fig. 7 is the 3rd application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention;
Fig. 8 is the composition structure chart of the routing iinformation transmission system of the embodiment of the present invention;
Fig. 9 is the composition structure chart of the VRR in the routing iinformation transmission system of the embodiment of the present invention;
Figure 10 is the composition structure chart of the AR in the routing iinformation transmission system of the embodiment of the present invention;
Figure 11 is the composition structure chart of the Router Reflector VRR of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
In the embodiment of the present invention, outbound route filter (ORF is gone out based on Border Gateway Protocol (BGP, Border Gateway Protocol), Outbound Route Filtering) characteristic, mutual both sides AR, VRR are defined as transmit leg sender, recipient receiver respectively.Concrete, when AR being defined as transmit leg sender, the VRR belonging to this AR is defined as recipient receiver; When VRR being defined as transmit leg sender, the AR under this VRR administers is defined as recipient receiver.No matter AR, VRR who as transmit leg sender, who is as recipient receiver, the embodiment of the present invention follows following principle: transmit leg sender identifies the routing iinformation received desired by it, and inform recipient receiver, receiver identifies described mark, and the routing iinformation with described mark is passed to transmit leg sender, to meet the demand of transmit leg sender.
Fig. 2 is the flow chart of the first embodiment of routing iinformation transmission method provided by the invention; AR as transmit leg sender, VRR of ORF as the recipient receiver of ORF; As shown in Figure 2, described method comprises:
Step 21: according to the mark made the routing iinformation required for AR received, VRR determines the routing iinformation with described mark in the routing iinformation received.
Here, the AR as transmit leg makes mark to the routing iinformation required for self, and the notification message carrying this identification information is sent to VRR; VRR receives described notification message, the mark of carrying according to described notification message, in the routing iinformation received, filters out the routing iinformation with described mark.
Step 22: described VRR transmits described routing iinformation to described AR.
Here, VRR only transmit there is described mark routing iinformation to AR, namely VRR only transmits the routing iinformation useful to AR, the routing iinformation useless for AR no longer transmits, decrease the transmission frequency of routing iinformation in IP bearer network, improve the accuracy that routing iinformation transmits, alleviate the resource processing load of VRR, AR.
Fig. 3 is the flow chart of the second embodiment of routing iinformation transmission method provided by the invention; VRR as transmit leg sender, AR of ORF as the recipient receiver of ORF; As shown in Figure 3, described method comprises:
Step 31: according to the mark made the routing iinformation required for VRR, AR determines the routing iinformation with described mark in the routing iinformation received.
Here, the VRR as transmit leg makes mark to the routing iinformation required for self, and the notification message carrying this identification information is sent to recipient AR; Recipient AR receives described notification message, the mark of carrying according to described notification message, in the routing iinformation received, filters out the routing iinformation with described mark.
Step 32:AR transmits described routing iinformation to VRR.
Here, AR only transmit there is described mark routing iinformation to VRR, namely AR only transmits the routing iinformation useful to VRR, the routing iinformation useless for VRR no longer transmits, decrease the transmission frequency of routing iinformation in IP bearer network, improve the accuracy that routing iinformation transmits, alleviate the resource processing load of VRR, AR.
Fig. 4 is the flow chart of the 3rd embodiment of routing iinformation transmission method provided by the invention; As shown in Figure 4, described method comprises:
Step 41: when AR is as recipient as ORF of transmit leg, VRR, according to the mark made the routing iinformation required for described AR, described VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR.
Here, the AR as transmit leg makes mark to the routing iinformation required for self, and the notification message carrying this identification information is sent to VRR; VRR receives described notification message, according to the mark that described notification message carries, in the routing iinformation received, filter out the routing iinformation with described mark, the routing iinformation transmission that AR needs only is given AR by VRR, unwanted for AR routing iinformation is not passed to AR.So, just decrease the transmission frequency of useless routing iinformation in IP bearer network, improve the accuracy that routing iinformation transmits, also mitigate the resource processing load of VRR, AR simultaneously.
Step 42: when VRR is as recipient as ORF of the transmit leg of ORF, AR, according to the mark made the routing iinformation required for described VRR, AR as recipient determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to the described VRR as ORF transmit leg.
Here, the VRR as transmit leg makes mark to the routing iinformation required for self, and the notification message carrying this identification information is sent to recipient AR; Recipient AR receives described notification message, the mark of carrying according to described notification message, in the routing iinformation received, filters out the routing iinformation with described mark.
As can be seen here, the routing iinformation that recipient feeds back to transmit leg be all with the routing iinformation of described mark namely for transmit leg, the routing iinformation fed back is all the routing iinformations required for self, and routing iinformation useless for transmit leg no longer participates in feedback; So, just decrease the transmission frequency of useless routing iinformation in IP bearer network, improve the accuracy that useful routing iinformation transmits.
In such scheme, according to the needs of practical application, can arrange the route filtering mode of transmit leg sender, and according to set route filtering mode, for transmit leg sender filters out unwanted routing iinformation.Described route filtering mode comprises following several: the route filtering based on address prefix, the route filtering based on sharing body, based on expansion the route filtering of sharing body, the route filtering based on prefix list.
Fig. 5 is the first application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention; As shown in Figure 5, AR2 as transmit leg sender only wants to receive A network segment routing iinformation, do not want to receive B network segment routing iinformation, before VRR transmits routing iinformation to AR2, arranging the route filtering mode that AR2 adopts is route filtering based on address prefix, identify the address prefix of the routing iinformation required for AR2, and the notification message carrying described mark is sent to VRR; After VRR receives described notification message, according to described mark, the routing iinformation received self screens, and further when the address prefix judging that certain routing iinformation has is identical with identified address prefix, this routing iinformation is passed to AR2 by VRR; When the address prefix judging that certain routing iinformation has is not identical with identified address prefix, do not transmit.
In Figure 5, VRR receives the routing iinformation coming from AR1 and comprises A network segment routing iinformation and B network segment routing iinformation, when carrying out the screening of routing iinformation, judge that the address prefix that the address prefix that A network segment routing iinformation has is identical from identified address prefix, B network segment routing iinformation has is different with the address prefix identified, then A network segment routing iinformation only need be fed back to AR2 by VRR, and AR2 obtains the routing iinformation wishing to obtain.
As from the foregoing, according to the mark made the routing iinformation required for AR2, VRR screens the routing iinformation from other AR received, and filters out the routing iinformation with described mark and feeds back to AR2; For the routing iinformation without described mark, VRR no longer feeds back to AR2, for the routing iinformation that only have received AR2 needed for self, thus, decrease the transmission frequency of useless routing iinformation in IP bearer network, improve the accuracy that routing iinformation transmits, also mitigate the resource processing load of VRR, AR simultaneously.
Fig. 6 is the second application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention; Fig. 6 is the Organization Chart based on provincial network, and involved network entity comprises: the AR of one-level VRR, secondary VRR and three types is formed; Wherein, described three types AR is respectively: this province great Qu AR, this province Fei great district AR, non-the province AR reflected by one-level VRR; Routing iinformation in IP bearer network roughly can be divided into following several: local business route, overall business route, detailed route; Deserving to be called the set stating route is convergence route.
In this application, VRR is as the transmit leg sender of ORF, and AR is as recipient receiver.
(1) one-level VRR wishes the local business type route receiving this province great Qu AR, this province Fei great district AR, non-province AR transmission, before this province great Qu AR, this province Fei great district AR, non-province AR send local business type route, VRR identifies described local business route, and by this identification record in filter list, and this filter list is sent to respectively this province great Qu AR, this province Fei great district AR, non-province AR; After this province great Qu AR, this province Fei great district AR, non-province AR receive filter list separately, described mark is identified, and screen self receiving routing iinformation according to described mark, filter out local business type routing iinformation and the local business type route filtered out is passed to one-level VRR;
(2) secondary VRR wishes to receive the local business type route of this province Fei great district AR transmission and detailed route, the local business type route sent at this province Fei great district AR and before detail routes to secondary VRR, VRR makes mark respectively to described local business route and detailed route, and by made identification record in filter list, and this filter list is sent to this province Fei great district AR; This province Fei great district AR, according to the mark in described filter list, screens self receiving routing iinformation, filters out local business type route and detailed route, and the local business type route filtered out and detailed route are passed to secondary VRR;
(3) one-level VRR wishes that route is converged in this locality receiving secondary VRR transmission; Before secondary VRR transmission route is to one-level VRR, one-level VRR makes mark respectively to local local locally business route, local overall business route, the local detailed route converging route of composition, secondary VRR is according to described mark, filter out local convergence route, and local convergence of transmission routes to one-level VRR.
(4) mark of the convergence route recorded in basis filter list each other between one-level VRR, carries out mutual transmission by the convergence route of the whole network.
Fig. 7 is the 3rd application schematic diagram of the routing iinformation transmission method of the embodiment of the present invention; Network entity involved in Fig. 7 and AR type all identical with described in Fig. 6, repeat no more here.
In this application, AR is as the transmit leg sender of ORF, the VRR recipient receiver as ORF.
(1) this province great Qu AR wishes the overall business type route and the local business type route that receive one-level VRR, secondary VRR transmission, before one-level VRR, secondary VRR transmission routes to this province great Qu AR, this province great Qu AR makes mark respectively to overall business type route and local business type route, and by made identification record in filter list, and send this filter list to one-level VRR, secondary VRR; One-level VRR, secondary VRR, according to the mark recorded in filter list, filter out the overall business type route and local business type route that self receive separately, and are passed to this province great Qu AR;
(2) this province Fei great district AR wishes the overall business type route and the local business type route that receive secondary VRR transmission, before secondary VRR transmission routes to this province Fei great district AR, this province Fei great district AR makes mark respectively to overall business type route and local business type route, and by made identification record in filter list, and send this filter list to secondary VRR; Secondary VRR, according to the mark recorded in filter list, filters out the overall business type route and local business type route that self receive, and is passed to this province Fei great district AR;
(3) other provinces AR wishes the overall business type route receiving one-level VRR transmission, before one-level VRR transmission route is to other provinces AR, other provinces AR makes mark to overall business type route, and by made identification record in filter list, and send this filter list to one-level VRR; One-level VRR, according to the mark recorded in filter list, filters out the overall business type route self received, and is passed to other provinces AR;
(4), between one-level VRR, lead to according to the overall business type Route Distinguisher recorded in filter list each other, overall business type route is transmitted mutually; By the overall business type route that records in filter list each other and local business type Route Distinguisher between one-level VRR and secondary VRR, overall business type route and local business type route are transmitted mutually.
It should be noted that, the transmittance process of the type of the routing iinformation required for PE in fig. 6 and 7 and the routing iinformation required for it see the above-mentioned explanation to AR, can repeat no more here.
As from the foregoing, utilize the technical scheme of the embodiment of the present invention, according to the mark made the routing iinformation required for transmit leg, recipient only needs to feed back to the routing iinformation that described transmit leg has described mark, and for not having other routing iinformations of described mark, recipient no longer feeds back to transmit leg.Thus, for the useless routing iinformation of transmit leg, no longer carry out the transmission from recipient to transmit leg, improve the accuracy that routing iinformation transmits, decrease the transmission frequency of routing iinformation in IP bearer network, alleviate the resource processing load of VRR, AR.
Based on the transmission method of above-mentioned routing iinformation, the embodiment of the present invention also describes a kind of routing iinformation transmission system, and Fig. 8 is the composition structure chart of the routing iinformation transmission system of the embodiment of the present invention, and as shown in Figure 8, described system comprises: AR81 and VRR82; Wherein,
When described VRR82 is as when going out transmit leg as described ORF of the recipient of outbound route filter ORF, AR81,
Described AR81, for sending the mark made the routing iinformation of self;
Described VRR82, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR81.
Wherein, as shown in Figure 9, when described VRR82 is as recipient, described VRR82 also comprises: receiving element 821, determining unit 822 and transfer unit 823; Wherein,
Described receiving element 821, during for receiving the mark made the routing iinformation of service access router AR81, triggers described determining unit 822;
Described determining unit 822, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit 823, for transmitting described routing iinformation to described AR81.
Further, described determining unit 822, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
System in conjunction with earlier figures 5 embodiment of the present invention is described further.
AR2(AR81 as transmit leg sender) only want to receive A network segment routing iinformation, do not want to receive B network segment routing iinformation, before VRR82 transmits routing iinformation to AR2, arranging the route filtering mode that AR2 adopts is route filtering based on address prefix, identify the address prefix of the routing iinformation required for AR2, and the notification message carrying described mark is sent to VRR82, specifically receiving element 821; VRR, after specifically described receiving element 821 receives described notification message, trigger described determining unit 822; Described determining unit 822 is according to the mark of carrying in described notification message, the routing iinformation that described receiving element 821 receives is screened, further when the address prefix judging that certain routing iinformation has is identical with identified address prefix, this routing iinformation is transferred to described transfer unit 823 by described determining unit 822; Described transfer unit 823 transmits this routing iinformation to AR2.
In Figure 5, described VRR82, specifically described determining unit 822 are when carrying out the screening of routing iinformation, filter out the address prefix that A network segment routing iinformation has identical with identified address prefix, the address prefix that B network segment routing iinformation has is different from identified address prefix, then described determining unit 822 only transmits A network segment routing iinformation to described transfer unit 823; A network segment routing iinformation is fed back to AR2 by described transfer unit 823, to meet the demand of AR2.
When AR81 is as transmit leg as described ORF of the recipient of described ORF, VRR82,
Described VRR82, for sending the mark made the routing iinformation of self;
Described AR81, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described transmit leg VRR82.
Wherein, as shown in Figure 10, when AR81 is as recipient, described AR81 comprises: the first receiving element 811, first determining unit 812 and the first transfer unit 813; Wherein,
Described first receiving element 811, during for receiving the mark made the routing iinformation of VRR82, triggers described determining unit 812;
Described first determining unit 812, for determining the routing iinformation with described mark in the routing iinformation received;
Described first transfer unit 813, for transmitting described routing iinformation to described VRR82.
Further, described first determining unit 812, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
The embodiment of the present invention also describes the composition structure chart that a kind of VRR, Figure 11 are the VRR of the embodiment of the present invention, and as shown in figure 11, described VRR comprises: receiving element 111, determining unit 112 and transfer unit 113; Wherein,
Described receiving element 111, during for receiving the mark made the routing iinformation of service access router AR, triggers described determining unit 112;
Described determining unit 112, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit 113, for transmitting described routing iinformation to described AR.
Described determining unit 112, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
Here, the function that the part of the VRR shown in Figure 11 realizes is identical with the function of the part shown in Fig. 9, repeats no more.
It will be appreciated by those skilled in the art that the practical function of each processing unit in the routing iinformation transmission system shown in Fig. 8 to Figure 11, VRR can refer to the associated description of aforementioned routing iinformation transmission method and understands.It will be appreciated by those skilled in the art that the function of each processing unit in the routing iinformation transmission system shown in Fig. 8 to Figure 11, VRR realizes by the program run on processor, also realize by concrete logical circuit.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. a routing iinformation transmission method, is characterized in that, described method comprises:
According to the mark made the routing iinformation required for service access router AR received, VPN (virtual private network) VPN Router Reflector VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR.
2. method according to claim 1, is characterized in that, described VRR determines the routing iinformation with described mark in the routing iinformation received, and comprising:
Described VRR is according to described mark, and the routing iinformation received self screens, and filters out the routing iinformation with described mark.
3. a routing iinformation transmission method, is characterized in that, described method comprises:
When VPN (virtual private network) VPN Router Reflector VRR is as when going out the recipient of outbound route filter ORF, according to the mark made the routing iinformation required for the service access router AR as ORF transmit leg, described VRR determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to the described AR as ORF transmit leg;
When AR is as when going out the recipient of outbound route filter ORF, according to the mark made the routing iinformation required for the VRR as ORF transmit leg, AR as recipient determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to the described VRR as ORF transmit leg.
4. method according to claim 3, is characterized in that, described VRR determines the routing iinformation with described mark in the routing iinformation received, and comprising:
Described VRR is according to the mark made the routing iinformation required for transmit leg AR received, and the routing iinformation received self screens, and filters out the routing iinformation with described mark, and returns the routing iinformation extremely described AR with described mark.
5. method according to claim 3, is characterized in that, the described AR as recipient determines the routing iinformation with described mark in the routing iinformation received, and comprising:
When AR as recipient receives the mark made the routing iinformation required for the VRR as transmit leg, the routing iinformation received self screens, filter out the routing iinformation with described mark, and return the routing iinformation extremely described VRR with described mark.
6. a VPN (virtual private network) VPN Router Reflector VRR, is characterized in that, described VRR comprises: receiving element, determining unit and transfer unit; Wherein,
Described receiving element, during for receiving the mark made the routing iinformation of service access router AR, triggers described determining unit;
Described determining unit, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit, for transmitting described routing iinformation to described AR.
7. VRR according to claim 6, is characterized in that, described determining unit, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
8. a routing iinformation transmission system, is characterized in that, described system comprises: service access router AR and VPN (virtual private network) VPN Router Reflector VRR; Wherein,
When described VRR is as when going out transmit leg as described ORF of the recipient of outbound route filter ORF, AR,
Described AR, for sending the mark made the routing iinformation of self;
Described VRR, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described AR;
When AR is as transmit leg as described ORF of the recipient of described ORF, VRR,
Described VRR, for sending the mark made the routing iinformation of self;
Described AR, for receiving described mark, determines the routing iinformation with described mark in the routing iinformation received, and transmits described routing iinformation to described transmit leg VRR.
9. system according to claim 8, is characterized in that, the VRR of the described recipient as described ORF comprises: receiving element, determining unit and transfer unit; Wherein,
Described receiving element, during for receiving the mark made the routing iinformation of the AR as described ORF transmit leg, triggers described determining unit;
Described determining unit, for determining the routing iinformation with described mark in the routing iinformation received;
Described transfer unit, for transmitting described routing iinformation to described AR.
10. system according to claim 9, is characterized in that, described determining unit, also for according to described mark, screens the routing iinformation received, filters out the routing iinformation with described mark.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106027396A (en) * | 2016-04-29 | 2016-10-12 | 杭州华三通信技术有限公司 | Route control method, device and system |
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