CN103117930B - The detection method of static routing configuration and device - Google Patents
The detection method of static routing configuration and device Download PDFInfo
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- CN103117930B CN103117930B CN201310049253.3A CN201310049253A CN103117930B CN 103117930 B CN103117930 B CN 103117930B CN 201310049253 A CN201310049253 A CN 201310049253A CN 103117930 B CN103117930 B CN 103117930B
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Abstract
The detection method that the embodiment of the present invention provides a kind of static routing to configure and device.Described method comprises: router receives the configuration information of static routing, and described configuration information comprises object IPv6 address and next-hop IP v6 address.Described router searches the neighbor cache list item mating described next-hop IP v6 address.If can not find the neighbor cache list item of coupling next-hop IP v6 address, then send the first neighbor request message.The destination address of described first neighbor request message is next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding next-hop IP v6 address.Described router determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message.If do not receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, then it is inactive that described static routing is set.The embodiment of the present invention can improve the reliability of static routing configuration.
Description
Technical field
The embodiment of the present invention relates to network routing techniques, particularly relates to detection method and the device of a kind of static routing configuration.
Background technology
At present, internet communication has brought into use internet protocol version 6(InternetProtocolVersion6, is below abbreviated as IPv6).IPv6 is the IP next generation protocol for alternative current edition IPv4 that Internet Engineering Task group (InternetEngineeringTaskForce, IETF) designs.
Network based on IPv6 is made up of main frame and router, and network three laminar flow amount carries out message repeating by routing iinformation.Route is key element the most basic in data communication network.Routing iinformation is exactly the routing information instructing message repeating, and the process of route is exactly the process that message relay forwards.Router preserves routing table and forwarding information base (ForwardingInformationBase is below abbreviated as FIB).Router instructs message repeating by FIB.Save the route that various Routing Protocol finds in routing table, different according to source, the route in routing table can be divided into following three classes usually: the route that link layer protocol finds, also referred to as interface route or direct-connected route; By the static routing of keeper's manual configuration; And the route that dynamic routing protocol finds.
Static routing is a kind of special route needing keeper's manual configuration, is used for the scene that network configuration is fairly simple.For example, a static routing comprises following key element: 1) destination address and mask; 2) outgoing interface or next-hop IP v6 address.Outgoing interface is the port that this equipment points to next-hop IP v6 address, and static routing device also can configure the configuration of next-hop IP v6 address iteration outgoing interface, and both actual functional capabilities are consistent.Such as, " ipv6route-static33::3641::2 ", wherein, address for the purpose of 33::3,64 is mask, and 1::2 is the address of next hop router.Different from dynamic routing protocol, static routing self does not have testing mechanism.When network failure time, keeper is needed to get involved.In addition, if administrator configurations error, communication also may go wrong, as static routing configuration error or link problem.In prior art, manually for static routing binding two-way converting detects (BidirectionalForwardingDetection is called for short BFD) session, for detecting the state of static routing place link, this mode needs human configuration, and workload is large, length consuming time, and easily make mistakes.
Summary of the invention
The detection method that the embodiment of the present invention provides a kind of static routing to configure and device, to improve the reliability of static routing configuration, reduce the workload of human configuration.
First aspect, provides the detection method that a kind of static routing configures.Described method comprises: router receives the configuration information of static routing, and described configuration information comprises object IPv6 address and next-hop IP v6 address.Described router searches the neighbor cache list item mating described next-hop IP v6 address.If can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message.The destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address.Described router determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message.If do not receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, then it is inactive that described static routing is set.
According to first aspect, provide the implementation that the first is possible.Described method also comprises: if receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
According to the first possible implementation of first aspect or first aspect, provide the implementation that the second is possible.Described method also comprises: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then arrange described static routing and enliven.
The implementation possible according to the first or the second of first aspect or first aspect, provides the implementation that the third is possible.Described method also comprises: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If do not receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, then it is inactive that described static routing is set.
According to the third implementation of first aspect, provide the 4th kind of possible implementation.Described method also comprises: if receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
According to the above-mentioned any one implementation of first aspect or first aspect, provide the 5th kind of possible implementation.Described method also comprises: when router receives the message of neighbor cache list item corresponding to the described static routing of request deletion, described router sends the 3rd neighbor request message by described outgoing interface, the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the 3rd time of presetting, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete described neighbor cache list item, keep described static routing to enliven.If do not receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the described 3rd time of presetting, then delete described neighbor cache list item, described static routing arranges inactive.
According to the above-mentioned any one implementation of first aspect or first aspect, provide the 6th kind of possible implementation.Described method also comprises: periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then described static routing is set and enlivens.If do not receive the neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then it is inactive that described static routing is set.
According to the above-mentioned any one implementation of first aspect or first aspect, provide the 7th kind of possible implementation.Described configuration information also comprises outgoing interface and matching length.
According to the first any one implementation to the 6th kind of implementation of first aspect or first aspect, provide the 8th kind of possible implementation.When described configuration information does not comprise outgoing interface, described router goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
The checkout gear that second aspect provides a kind of static routing to configure, comprising: receiver module, receives the configuration information of static routing for router, and described configuration information at least comprises object IPv6 address and next-hop IP v6 address; Search module, search the neighbor cache list item mating described next-hop IP v6 address for described router; Sending module, if for can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address; Determination module, for determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message; Block of state is set, if for first preset time in do not receive the first neighbor advertisement message responding described first neighbor request message, then it is inactive that described static routing is set.
According to second aspect, provide the implementation that the first is possible.Described block of state is set, also for: if first preset time in receive the first neighbor advertisement message responding described first neighbor request message, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
According to the first implementation of second aspect or second aspect, provide the implementation that the second is possible.Described block of state is set, also for: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then arrange described static routing and enliven.
According to the first or the second implementation of second aspect or second aspect, provide the implementation that the third is possible.Described sending module also for: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.Described determination module, also for determine second preset time in whether receive the second neighbor advertisement message responding described second neighbor request message.Described block of state is set, also for: if do not receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, then it is inactive that described static routing is set.
In conjunction with the third possible implementation of second aspect, provide the 4th kind of possible implementation.Described block of state is set, also for: if described second preset time in receive response described second neighbor request message described second neighbor advertisement message, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
According to the above-mentioned any one implementation of second aspect or second aspect, provide the 5th kind of possible implementation.Described receiver module, also deletes the message of neighbor cache list item corresponding to described static routing for receiving request.Described sending module is also for sending the 3rd neighbor request message by outgoing interface, and the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.Described determination module, also for determine the 3rd preset time in whether receive the 3rd neighbor advertisement message responding described 3rd neighbor request message.Described device also comprises: omit removing module, if for the 3rd preset time in receive the 3rd neighbor advertisement message responding described 3rd neighbor request message, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete described neighbor cache list item, keep described static routing to enliven.Described device also comprises: removing module, if for the described 3rd preset time in do not receive the 3rd neighbor advertisement message responding described 3rd neighbor request message, then delete described neighbor cache list item, it is inactive that described static routing is set.
According to the above-mentioned any one implementation of second aspect or second aspect, provide the 6th kind of possible implementation.Described sending module also for: periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.Described determination module, also for determine the 4th preset time in whether receive the 4th neighbor advertisement message responding described 4th neighbor request message.Described block of state is set, also for: if the 4th preset time in receive the neighbor advertisement message responding described 4th neighbor request message, then arrange described static routing to enliven, if do not receive the neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then it is inactive that described static routing is set.
According to the above-mentioned any one implementation of second aspect or second aspect, provide the 7th kind of possible implementation.Described configuration information also comprises outgoing interface and matching length.
According to the first of second aspect or second aspect to any one implementation in the 6th kind, provide the 8th kind of possible implementation.Described device also comprises: iteration module, and for when described configuration information does not comprise described outgoing interface, described router goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
The detection method of the static routing configuration that the embodiment of the present invention provides and device, router receives the configuration information of static routing, and configuration information comprises next-hop IP v6 address.Router searches the neighbor cache list item mating described next-hop IP v6 address, if can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, if do not receive first neighbours' response message of described first neighbor request message of response within the first time of presetting, then described static routing is set and enlivens.The scheme of the embodiment of the present invention, can find static routing configuration error or link problem automatically, can improve the reliability of static routing configuration, reduces the workload of human configuration.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the detection method of static routing configuration in one embodiment of the invention;
Fig. 2 is the flow chart of the detection method of static routing configuration in another embodiment of the present invention;
The networking schematic diagram of the scene one that Fig. 3 is suitable for by the embodiment of the present invention;
The networking schematic diagram of the scene two that Fig. 4 is suitable for by the embodiment of the present invention;
The networking schematic diagram of the scene three that Fig. 5 is suitable for by the embodiment of the present invention;
Fig. 6 is the structural representation of the checkout gear of static routing configuration in one embodiment of the invention;
Fig. 7 is the structural representation of the checkout gear of static routing configuration in another embodiment of the present invention;
Fig. 8 is the structural representation of the checkout gear of static routing configuration in one embodiment of the invention;
The structural representation of the router that Fig. 9 provides for another embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The detection method of the static routing configuration of the embodiment of the present invention can be performed by checkout gear, and this checkout gear accessible site in the router.
Static routing is configured with in this router.Static routing refers to the route by keeper's manual configuration.When the state of topology of networks or link changes, keeper needs manual going to revise static routing information relevant in routing table.For example, static routing information is privately owned under default condition, can not pass to other router, therefore uses static routing network security confidentiality high.Certainly, keeper also can be undertaken arranging by routers and makes it to become shared.Static routing is generally applicable to fairly simple network environment, and in this environment, keeper is readily clear of the topological structure of ground awareness network, is convenient to arrange correct routing iinformation.
For example, the down hop of router-A (address is 1::1/64) is router B(address is 1::2/64), will forward the packet to destination address by router B is the main frame of 33::3, keeper will configure the routing iinformation of " ipv6route-static33::3641::2 " on router-A, the path that this static routing information determines message repeating be router-A to router B, then be transmitted to the main frame of destination address 33::3 by router B.
The present embodiment provides the detection scheme to as above static routing, and the method for this embodiment can comprise:
Checkout gear, based on the next-hop IP v6 address in the static routing configured in router, carries out the study of neighbor cache list item;
Wherein, neighbor uni-cast (NeighborDiscovery, below be abbreviated as ND) be one group of message and the process of determining relation between neighbor node, the Neighbor Discovery Protocol of IPv6 instead of the address resolution protocol (AddressResolutionProtocol of IPv4, below be abbreviated as ARP), Internet Control Message Protocol router find (InternetControlMessageProtocolRouterDiscovery, ICMPRouterDiscovery) and ICMP be redirected (Redirect) message, and provide other functions.
For a node, after its configuration of IP v6 address, first can determine this address whether can with, do not conflict.When a node is main frame, router needs the desirable down hop IPv6 address notifying that main frame E-Packets to specific purpose address; When a node is router, needs to issue the address of oneself, address prefix and other configuration parameters and carry out parameter configuration to instruct main frame.In IPv6 message repeating process, node needs the media interviews determining neighbor node to control corresponding relation and its accessibility of the IPv6 address of (MediaAccessControl is below abbreviated as MAC) address and neighbor node.Neighbor cache comprises the corresponding relation of the MAC Address of neighbor node and the IPv6 address of neighbor node.
Concrete, in above-mentioned example, the next-hop IP v6 address of static routing configuration is the IPv6 address of router B.Again for example, the configuration information of static routing can comprise outgoing interface.Router-A is after configuring static route, search neighbor cache and determine whether the neighbor cache list item of this next-hop IP v6 matching addresses exists, if determine, the neighbor cache list item of this next-hop IP v6 matching addresses does not exist, and carries out neighbor uni-cast according to this next-hop IP v6 address.Checkout gear, according to the result of described neighbor uni-cast, arranges the state of described static routing, such as, enlivens, or inactive.For example, if determine this next-hop IP v6 matching addresses neighbor cache list item exist and state for can reach time, arrange described static routing enliven.
Adopt several specific embodiment below, technique scheme is described in detail.
Fig. 1 is the flow chart of detection method of static routing configuration in one embodiment of the invention, as shown in Figure 1, comprises 101, configuration information that router receives static routing.For example, described configuration information comprises object IPv6 address and next-hop IP v6 address.Alternatively, described configuration information can also comprise outgoing interface and matching length.Alternatively, when described configuration information does not comprise described outgoing interface, described router goes out described outgoing interface according to described next-hop IP v6 address iteration.
102, router searches the neighbor cache list item of coupling next-hop IP v6 address.
For example, described router stores neighbor cache, and described neighbor cache comprises at least one neighbor cache list item, and at least one neighbor cache list item described comprises the IPv6 address of the neighbor device of described router and corresponding outgoing interface.
If 103 can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message (NeighborSolicitationmessage), the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address (solicited-nodemulticastaddresscorrespondingtothenext-hop IPv6address) of corresponding described next-hop IP v6 address.
104, described router determine first preset time in whether receive the first neighbor advertisement message (NeighborAdvertisementmessage) responding described first neighbor request message.
If 105 do not receive described first neighbor advertisement message of response within the described first time of presetting, then it is inactive that described static routing is set.
Fig. 2 is the flow chart of the detection method of static routing configuration in another embodiment of the present invention, compared to the method shown in Fig. 1, can also comprise: perform after 105 and repeat 103 and 104, namely repeat send described first neighbor request message, determine described first preset time in whether receive described first neighbor advertisement message.If described first preset time in receive described first neighbor advertisement message, perform 106, arrange described static routing enliven.Alternatively, the time interval repeating to send described first neighbor request message can increase progressively.Such as, time initial, after 1 second, second time sends described first neighbor request message.If do not receive described first neighbor advertisement message in the first Preset Time, then third time sends described first neighbor request message afterwards to spend 10 seconds.If still do not receive described first neighbor advertisement message in the first Preset Time, then third time sends described first neighbor request message afterwards to spend 20 seconds, by that analogy.This repeat the mode of neighbor uni-cast according to time incremental manner can saving resource
The detection method of the static routing configuration that the embodiment of the present invention provides, by for searching the neighbor cache list item mating described next-hop IP v6 address during configuration of routers static routing, if can not find the neighbor cache list item mating described next-hop IP v6 address, then carry out neighbor uni-cast, if do not receive neighbor advertisement message in the time of presetting, then it is inactive that described static routing is set.The embodiment of the present invention can realize the automatic detection of static routing configuration, can improve the reliability of static routing configuration, reduces the workload of human configuration.
Alternatively, in above-described embodiment, after receiving described first neighbor advertisement message, create the first neighbor cache list item, store the corresponding relation of described first neighbor cache list item and described static routing.Alternatively, if receive the first neighbor advertisement message responding described first neighbor request message within the described first time of presetting, the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
Alternatively, method described in above-described embodiment can also comprise: if described router finds the neighbor cache list item of the described next-hop IP v6 address of coupling and outgoing interface, and the state of described neighbor cache list item is for can reach (reachable), then described static routing is set and enlivens.Alternatively, described router stores the neighbor cache list item of described coupling and the corresponding relation of described static routing.For example, the configuration information of described static routing comprises described outgoing interface.Again for example, when the configuration information of described static routing does not comprise described outgoing interface, described routing device goes out described outgoing interface according to described next-hop IP v6 address iteration.
Alternatively, method described in above-described embodiment can also comprise: if described router finds the neighbor cache list item of the described next-hop IP v6 address of coupling and described outgoing interface, and the state of described neighbor cache list item is not can reach (reachable), then send the second neighbor request message by described outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If do not receive the second neighbor advertisement message responding described second neighbor request message within the described second time of presetting, then it is inactive that described static routing is set.Alternatively, if receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.Alternatively, described router stores the neighbor cache list item of described coupling and the corresponding relation of described static routing.
For example, the described second time of presetting can be identical with the described first time of presetting, also can be different.
Alternatively, method described in above-described embodiment can also comprise: periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, destination address is described next-hop IP v6 address, if receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then arrange described static routing to enliven, if do not receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, it is inactive that described static routing is set.For example, when described static routing is deleted, the operation periodically sending described 4th neighbor request message is omitted.
The detection method of the static routing configuration that the embodiment of the present invention provides, by during for configuration of routers static routing, carry out the list item study of neighbor uni-cast when neighbor cache list item does not exist, can automatically find static routing configuration error or link problem, improve the reliability of traffic forwarding.
Alternatively, method described in above-described embodiment can also comprise: when router receives the message of neighbor cache list item corresponding to the described static routing of request deletion, described router then sends the 3rd neighbor request message by described outgoing interface, the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the described 3rd time of presetting, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete described neighbor cache list item, keep described static routing to enliven.Alternatively, if do not receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the described 3rd time of presetting, then delete described neighbor cache list item, it is inactive that described static routing is set.
Adopt such scheme, static routing can be avoided can not to be deleted by mistake, improve the availability of static routing.
Below for several embody rule scene, be described in detail to embodiment illustrated in fig. 2 further.
The networking schematic diagram of the scene one that Fig. 3 is suitable for by the embodiment of the present invention, as shown in Figure 3, the present embodiment illustrates, if under networking link section goes wrong situation, utilizes the method for the embodiment of the present invention effectively can evade the obstructed generation of flow.
Concrete, in the networking of Fig. 3, router RTA, router RTB is connected by Layer 2 switch with in the middle of router RTC, when the link that switch and RTB link goes wrong, the interface that RTA is connected with switch cannot perception, if now configuring static route on RTA, when down hop is the address of RTB, the embodiment of the present invention can determine whether there is the neighbor cache list item of coupling when configuring static route for this scene according to the IPv6 address search neighbor cache of router RTB, if there is no the neighbor cache list item mated, then send neighbor request message, now due to the link problem between switch and RTB, can not receive the neighbor advertisement message responding described neighbor request message, it is inactive that static routing is then set.Sluggish route can not be issued in fib table item, thus the path transmission data flow broken down described in can not passing through.
The networking schematic diagram of the scene two that Fig. 4 is suitable for by the embodiment of the present invention, as shown in Figure 4, the present embodiment illustrates, if when administrator configurations mistake, utilizes the method for the embodiment of the present invention effectively can evade the generation of flow cutout.
Concrete, in the networking of Fig. 4, router RTA is connected by dual link with router RTB, wherein a link address 1:2::1/64, the outgoing interface Ethernet1/0/0 of router RTA are connected with router RTB address 1:2::2/64, outgoing interface Ethernet1/0/1, and another link address 2:1::1/64, the outgoing interface Ethernet2/0/0 of router RTA are connected with router RTB address 2:1::2/64, outgoing interface Ethernet2/0/1.If keeper on RTA during configuring static route due to operate miss, joined wrong down hop and outgoing interface, made when configuring as follows:
ipv6route-static1:2::264Ethernet1/0/02:1::2
The embodiment of the present invention by searching neighbor cache, and carries out neighbor uni-cast, can find this mistake, avoids data stream transmitting to interrupt.And in existing technical scheme after configuring static route, described static routing is used in instructs message repeating, whether the static routing not detecting configuration can reach, because outgoing interface Ethernet1/0/0 is not connected with next-hop IP v6 address 2:1::2, causes data stream transmitting to interrupt.
The networking schematic diagram of the scene three that Fig. 5 is suitable for by the embodiment of the present invention.Concrete, in the networking of Fig. 5, router RTA is connected with router RTB, and router RTB is connected with the main frame of destination address 33::3/64.If arrive the static routing of destination address 33::3 RTA configuration one:
ipv6route-static33::3641::2
Whether neighbor cache determination next-hop IP v6 matching addresses is searched in the invention process regular meeting neighbor cache list item when configuring static route exists, if there is no, then carry out neighbor uni-cast, when receiving the neighbor advertisement message of response neighbor request message within the time of presetting, arrange static routing to enliven, and prior art is on RTA after configuring static route, the static routing of this configuration will be issued to FIB and be used to guide message repeating, the flow arriving 33::3 is introduced, flow just can by the study of the ND list item of flow triggering 1::2 after introducing, therefore, flow before study to ND list item is all dropped.And the embodiment of the present invention has learnt ND list item before receiving data flow, therefore can not packet loss.
Fig. 6 is the structural representation of the checkout gear of static routing configuration in one embodiment of the invention, and can perform the detection method of the static routing configuration that above-described embodiment provides, this device accessible site in the router.As shown in Figure 6, the device of the embodiment of the present invention, comprising: receiver module 61, and for receiving the configuration information of static routing, described configuration information at least comprises object IPv6 address and next-hop IP v6 address;
Search module 62, for searching the neighbor cache list item mating described next-hop IP v6 address;
Sending module 63, if for can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address;
Determination module 64, for determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message;
Block of state 65 is set, if for first preset time in do not receive the first neighbor advertisement message responding described first neighbor request message, then it is inactive that described static routing is set.
The device of the present embodiment, may be used for the detection method performing the static routing configuration that above-described embodiment provides, what respectively operate realizes detail with reference embodiment of the method, repeats no more herein.
The checkout gear of the static routing configuration that the embodiment of the present invention provides, receive the configuration information of static routing, search the neighbor cache list item of coupling, if can not find the neighbor cache list item of coupling, then carry out neighbor uni-cast, if do not receive the first neighbor advertisement message responding described first neighbor request message within the first time of presetting, then it is inactive that described static routing is set.Therefore, this scheme can find static routing configuration error or link problem automatically, can improve the reliability of static routing configuration, reduces the workload of human configuration.
Optionally, described block of state 65 is set, also for: if described first preset time in receive response described first neighbor request message described first neighbor advertisement message, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
Optionally, described block of state 65 is set, also for: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then arrange described static routing and enliven.
Optionally, described sending module 63 also for: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.
Described determination module 64, also for determine second preset time in whether receive the second neighbor advertisement message responding described second neighbor request message.
Described block of state 65 is set, also for: if do not receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, then it is inactive that described static routing is set.
Optionally, described block of state 65 is set, also for: if described second preset time in receive response described second neighbor request message described second neighbor advertisement message, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
Fig. 7 is the structural representation of the checkout gear of static routing configuration in another embodiment of the present invention, and the device shown in Fig. 7, compared to the device shown in above-mentioned Fig. 6, can also comprise:
Trigger module 66, for when described next-hop IP v6 matching addresses neighbor cache list item exist and state be not can reach time, or when not receiving the first neighbor advertisement message responding described first neighbor request message in the time of presetting described first, triggering described sending module 63 and repeating to send described first neighbor request message.
For example, wherein, described trigger module 66 exists specifically for the neighbor cache list item when described next-hop IP v6 address, and state is not when can reach, or when not receiving the first neighbor advertisement message responding described first neighbor request message in the time of presetting described first, triggering described sending module 63 according to time incremental manner and repeating to send described first neighbor request message.
Optionally, described sending module 63 also for:
Periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
Described determination module 64, also for determine the 4th preset time in whether receive the 4th neighbor advertisement message responding described 4th neighbor request message.
Described block of state 65 is set, also for: if the 4th preset time in receive the 4th neighbor advertisement message responding described 4th neighbor request message, then arrange described static routing to enliven, if do not receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then it is inactive that described static routing is set.
Device shown in Fig. 7, may be used for the detection method performing the static routing configuration that above-described embodiment provides, what respectively operate realizes detail with reference embodiment of the method, repeats no more herein.
Fig. 8 is the structural representation of the checkout gear of static routing configuration in one embodiment of the invention, and the device shown in Fig. 8 is compared to the device shown in Fig. 7, and described receiver module 61 also deletes the message of neighbor cache list item corresponding to static routing for receiving request.Described sending module 63 is also for sending the 3rd neighbor request message by described outgoing interface, and the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.
Described determination module 64, also for determine the 3rd preset time in whether receive the 3rd neighbor advertisement message responding described 3rd neighbor request message.
Omit removing module 67, if for the 3rd preset time in receive the 3rd neighbor advertisement message responding described 3rd neighbor request message, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete neighbor cache list item corresponding to described static routing, keep described static routing to enliven.
Removing module 68, if for the described 3rd preset time in do not receive the 3rd neighbor advertisement message responding described 3rd neighbor request message, then delete the neighbor cache list item that described static routing is corresponding, it is inactive that described static routing is set.
Device shown in Fig. 8, when the message of neighbor cache list item corresponding to static routing is deleted in the request that receives, carries out neighbor uni-cast, route can be avoided to be deleted by mistake, guarantee the availability of route.
Optionally, as shown in Figure 8, the described sending module 63 in the device of the various embodiments described above, comprises the first transmitting element 631 and the second transmitting element 632, wherein:
Described first transmitting element 631, for when the neighbor cache list item of described next-hop IP v6 matching addresses does not exist, send described first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address.
Described second transmitting element 632, for when described next-hop IP v6 matching addresses neighbor cache list item exist and state be not can reach time, the second neighbor request message is sent by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.
Device shown in Fig. 8, can avoid static routing can not be deleted by mistake, improves the availability of static routing.
Optionally, the configuration information of described static routing also comprises outgoing interface and matching length.
Optionally, the device shown in Fig. 8 also comprises:
Iteration module 69, for when the configuration information of described static routing does not comprise described outgoing interface, goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
Device shown in Fig. 8, may be used for the detection method performing the static routing configuration that above-described embodiment provides, what respectively operate realizes detail with reference embodiment of the method, repeats no more herein.
In sum, the detection method of the static routing configuration that the embodiment of the present invention provides and device, receive the configuration information of static routing, carry out neighbor uni-cast, can automatically find static routing configuration error or link problem, the reliability of static routing configuration can be improved, reduce the workload of human configuration.
The structural representation of the router that Fig. 9 provides for another embodiment of the present invention, this router comprises at least one processor 901, at least one network interface 902, memory 903, and at least one communication bus 904, for the connection communication between implement device.The instruction of processor 901 for storing in execute store 903.For example, memory 903 can comprise high-speed random access memory (RAM:RandomAccessMemory), still can comprise non-labile memory (non-volatilememory), such as at least one magnetic disc store.The communication connection between router and other routers or main frame is realized by least one network interface 902.
In some embodiments, memory 903 stores program 905, program 905 can be performed by processor 901, this program comprises the detection method performing a kind of static routing configuration, the method comprises: the configuration information receiving static routing, described configuration information at least comprises object IPv6 address and next-hop IP v6 address.Described router searches the neighbor cache list item mating described next-hop IP v6 address.If can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address.If do not receive the first neighbor advertisement message responding described first neighbor request message within the first time of presetting, then it is inactive that described static routing is set.
Alternatively, said procedure 905 can also comprise: if receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
Alternatively, said procedure 905 can also comprise: if find the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then arrange described static routing and enliven.
Alternatively, above-mentioned 905 can also comprise: if find the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If do not receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, then it is inactive that described static routing is set.
Alternatively, said procedure 905 can also comprise: if receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
Alternatively, said procedure 905 also comprises: when the message of neighbor cache list item corresponding to described static routing is deleted in the request of receiving, the 3rd neighbor request message is sent by outgoing interface, the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the 3rd time of presetting, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete described neighbor cache list item, keep described static routing to enliven.If do not receive described 3rd neighbor advertisement message of described 3rd neighbor request message of response within the described 3rd time of presetting, then delete described neighbor cache list item, it is inactive that described static routing is set.
Alternatively, said procedure 905 can also comprise: periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address.If receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then arrange described static routing to enliven, if do not receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then it is inactive that described static routing is set.
Alternatively, the configuration information of described static routing also comprises outgoing interface and matching length.
Alternatively, said procedure 905 can also comprise, and when described configuration information does not comprise described outgoing interface, goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate the technical scheme of the embodiment of the present invention, be not intended to limit; Although be described in detail the embodiment of the present invention with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the embodiment of the present invention.
Claims (18)
1. a detection method for static routing configuration, is characterized in that, comprising:
Router receives the configuration information of static routing, and described configuration information comprises object IPv6 address and next-hop IP v6 address;
Described router searches the neighbor cache list item mating described next-hop IP v6 address;
If can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address;
Described router determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message;
If do not receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, then it is inactive that described static routing is set;
After router receives the first neighbor advertisement message, create neighbor cache list item, store the corresponding relation of described neighbor cache list item and described static routing;
When described router receives the message of neighbor cache list item corresponding to the described static routing of request deletion, described router sends the 3rd neighbor request message by outgoing interface, the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
If do not receive the 3rd neighbor advertisement message responding described 3rd neighbor request message within the 3rd time of presetting, then delete the neighbor cache list item that described static routing is corresponding, it is inactive that described static routing is set.
2. the detection method of static routing configuration according to claim 1, it is characterized in that, also comprise: if receive described first neighbor advertisement message of described first neighbor request message of response within the described first time of presetting, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
3. the detection method of static routing configuration according to claim 1, it is characterized in that, also comprise: if described router finds the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then described static routing is set and enlivens.
4. the detection method of the static routing configuration according to any one of claim 1-3, is characterized in that, also comprise:
If described router finds the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
If do not receive the second neighbor advertisement message responding described second neighbor request message within the second time of presetting, then it is inactive that described static routing is set.
5. the detection method of static routing configuration according to claim 4, is characterized in that, also comprise:
If receive described second neighbor advertisement message of described second neighbor request message of response within the described second time of presetting, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
6. the detection method of the static routing configuration according to any one of claim 1-3, is characterized in that, also comprise:
If receive described 3rd neighbor advertisement message of described 3rd neighbor request message of response within the described 3rd time of presetting, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete neighbor cache list item corresponding to described static routing, keep described static routing to enliven.
7. the detection method of the static routing configuration according to any one of claim 1-3, is characterized in that, also comprise:
Periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
If receive the 4th neighbor advertisement message responding described 4th neighbor request message within the 4th time of presetting, then arrange described static routing to enliven, if do not receive described 4th neighbor advertisement message of described 4th neighbor request message of response within the 4th time of presetting, then it is inactive that described static routing is set.
8. the detection method of the static routing configuration according to any one of claim 1-3, it is characterized in that, described configuration information also comprises outgoing interface and matching length.
9. the detection method of the static routing configuration according to any one of claim 1-3, it is characterized in that, when described configuration information does not comprise outgoing interface, described router goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
10. a checkout gear for static routing configuration, is characterized in that, comprising:
Receiver module, for receiving the configuration information of static routing, described configuration information comprises object IPv6 address and next-hop IP v6 address;
Search module, for searching the neighbor cache list item mating described next-hop IP v6 address;
Sending module, if for can not find the neighbor cache list item mating described next-hop IP v6 address, then send the first neighbor request message, the destination address of described first neighbor request message is described next-hop IP v6 address, and destination address is the requesting node multicast address of corresponding described next-hop IP v6 address;
Determination module, for determine first preset time in whether receive the first neighbor advertisement message responding described first neighbor request message;
Block of state is set, if for first preset time in do not receive the first neighbor advertisement message responding described first neighbor request message, then it is inactive that described static routing is set;
Described receiver module, also delete the message of neighbor cache list item corresponding to described static routing for receiving request, wherein, described neighbor cache list item creates after receiving the first neighbor advertisement message;
Described sending module, also for sending the 3rd neighbor request message by outgoing interface, the destination address of described 3rd neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
Described determination module, also for determine the 3rd preset time in whether receive the 3rd neighbor advertisement message responding described 3rd neighbor request message;
Described device also comprises:
Removing module, if for the described 3rd preset time in do not receive response described 3rd neighbor request message described 3rd neighbor advertisement message, then delete the neighbor cache list item that described static routing is corresponding, it is inactive that described static routing is set.
The checkout gear of 11. static routing according to claim 10 configurations, is characterized in that, describedly arranges block of state, also for:
If receive described first neighbor advertisement message of described first neighbor request message of response within the first time of presetting, and the destination address that described first neighbor advertisement message is carried is described next-hop IP v6 address, then described static routing is set and enlivens.
The checkout gear of 12. static routing according to claim 10 configurations, is characterized in that, describedly arranges block of state, also for:
If find the neighbor cache list item mating described next-hop IP v6 address, and the state of described neighbor cache list item is for reaching, then described static routing is set and enlivens.
13. according to any one of claim 10-12 static routing configuration checkout gear, it is characterized in that,
Described sending module also for: if find the neighbor cache list item mating described next-hop IP v6 address, and described neighbor cache list item state is not to reach, then send the second neighbor request message by outgoing interface, the destination address of described second neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
Described determination module, also for determine second preset time in whether receive the second neighbor advertisement message responding described second neighbor request message;
Described block of state is set, also for: if do not receive described second neighbor advertisement message of described second neighbor request message of response within the second time of presetting, then it is inactive that described static routing is set.
The checkout gear of 14. static routing according to claim 13 configurations, is characterized in that, describedly arranges block of state, also for:
If receive described second neighbor advertisement message of described second neighbor request message of response within the described second time of presetting, the destination address that described second neighbor advertisement message is carried is described next-hop IP v6 address, then arrange described static routing and enliven.
15. according to any one of claim 10-12 static routing configuration checkout gear, it is characterized in that,
Described device also comprises:
Omit removing module, if for the 3rd preset time in receive the 3rd neighbor advertisement message responding described 3rd neighbor request message, the destination address that described 3rd neighbor advertisement message is carried is described next-hop IP v6 address, then omit the operation performing and delete neighbor cache list item corresponding to described static routing, keep described static routing to enliven.
16. according to any one of claim 10-12 static routing configuration checkout gear, it is characterized in that,
Described sending module also for: periodically send the 4th neighbor request message, the destination address of described 4th neighbor request message is described next-hop IP v6 address, and destination address is described next-hop IP v6 address;
Described determination module, also for determine the 4th preset time in whether receive the 4th neighbor advertisement message responding described 4th neighbor request message;
Described block of state is set, also for: if receive the 4th neighbor advertisement message respond described 4th neighbor request message within the 4th time of presetting, then it is active that described static routing is set, otherwise it is inactive to arrange described static routing.
17. according to any one of claim 10-12 static routing configuration checkout gear, it is characterized in that, described configuration information also comprises outgoing interface and matching length.
18. according to any one of claim 10-12 static routing configuration checkout gear, it is characterized in that, also comprise:
Iteration module, for when described configuration information does not comprise outgoing interface, goes out the outgoing interface of described static routing according to described next-hop IP v6 address iteration.
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| CN106612341B (en) * | 2016-11-24 | 2020-05-22 | 上海易杵行智能科技有限公司 | Method for intelligently configuring network management address of neighbor switch |
| CN107260140A (en) * | 2017-06-09 | 2017-10-20 | 上海斐讯数据通信技术有限公司 | A kind of whole day rhythm of the heart method and system |
| CN107592243B (en) * | 2017-10-23 | 2020-12-22 | 王蕴卓 | Method and device for verifying static binding function of router |
| US10813032B2 (en) * | 2018-11-14 | 2020-10-20 | Landis+Gyr Innovations, Inc. | Systems and methods for neighboring node discovery in a network |
| CN110113202B (en) * | 2019-04-30 | 2022-02-25 | 新华三信息安全技术有限公司 | IPsec diagnosis method and device and home terminal equipment |
| CN111953606B (en) * | 2020-07-14 | 2022-06-21 | 锐捷网络股份有限公司 | Routing iteration loop detection method and device, electronic equipment and storage medium |
| CN112637057B (en) * | 2020-12-30 | 2022-08-16 | 锐捷网络股份有限公司 | Route management method and device |
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