CN105281951A - Double-main-device conflict detection method for VSU system, and network equipment - Google Patents
Double-main-device conflict detection method for VSU system, and network equipment Download PDFInfo
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- CN105281951A CN105281951A CN201510634825.3A CN201510634825A CN105281951A CN 105281951 A CN105281951 A CN 105281951A CN 201510634825 A CN201510634825 A CN 201510634825A CN 105281951 A CN105281951 A CN 105281951A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/70—Virtual switches
Abstract
The invention provides a double-main-device conflict detection method for a VSU system, and network equipment. The method comprises the steps: transmitting an ICMP request message to uplink equipment of the VSU system through a port of a preset type when first equipment determines that a VSL link of the VSU system is cut off, wherein the ICMP request message comprises the MAC address of the first equipment, and a main device vote parameter of the first equipment; receiving an ICMP response message transmitted by the uplink equipment; and carrying out double-main-device conflict detection according to the MAC address and main-device vote parameter of the first equipment and the MAC address and main-device vote parameter of the second equipment when the ICMP response message is determined to have the MAC address and main-device vote parameter of the second equipment. The method is good in network compatibility, can meet the demands of different scenes, does not need to build a dedicated link for the transmission of a detection message, and saves network resources.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to two primary apparatus conflict detection method and the network equipment in a kind of VSU system.
Background technology
VSU (VirtualSwitchingUnit, virtual switch unit) is a kind of network system Intel Virtualization Technology, supports multiple devices to be combined into single virtual unit.Access, convergence, core layer equipment can form VSU, form whole net VSU networking plan end to end.Compare with traditional networking mode, this networking can simplified network topology, reduces the management maintenance cost of network, shortens the time of application recovery and the time of service disconnection, improve the utilance of Internet resources.
The member device of VSU internal system is by inner VSL (VisualSwitchingLink, virtual switch link) link composition logic entity, simultaneously, when VSU system buildup, each member device elects a host apparatus by certain election mechanism from all member devices, one from equipment, all the other member devices alternatively equipment.Host apparatus is responsible for controlling whole VSU system, runs chain of command agreement and participates in data retransmission; Only participate in data retransmission from equipment, do not run chain of command agreement, all chain of command data received all will be transmitted to host apparatus and process.From the state of going back real-time synchronization reception host apparatus with equipment simultaneously, form 1:1 with host apparatus and back up.If host apparatus and from the VSL link failure between equipment, from can think former host apparatus fault or loss with equipment, self can upgrade to host apparatus.Such VSU system will be split into two host apparatus worked alone, now will there are two identical host apparatus of configuration in network, these host apparatus are linked in network simultaneously, IP (InternetProtocolAddress can be caused, internet protocol address) series of problems such as address conflict, agreement mistake in computation, therefore need to carry out two host apparatus and detect.
At present, conventional two host apparatus detection methods comprise: two-way converting detects (BFD, BidirectionalForwardingDetection) detection technique, Link Aggregation Control Protocol (LACP, LinkAggregationControlProtocol) detection technique and gratuitous ARP (AddressResolutionProtocol, address resolution protocol) detection technique.
Wherein, BFD detection technique needs to configure different IP addresses at the host apparatus of VSU system be connected with from equipment being chosen respectively a route mouth, transmits detect-message.This technology needs between two equipment, to set up a link specially to spread out of detect-message, causes the waste of Internet resources; LACP detection technique needs VSU system and first line of a couplet equipment to carry out cross-equipment aggregation, LACP detection messages is sent to first line of a couplet equipment, by first line of a couplet device forwards to other Member Links, and then reach testing goal, but the equipment of this technical requirement LACP both link ends is same vendor equipment, there is restriction to user networking, network compatibility is not high; Gratuitous ARP detection technique sends broadcast NA message, by first line of a couplet device forwards on other host apparatus, reaches testing goal.Program limitation is comparatively large, requires the intrasystem equipment of VSU all in a broadcast domain.
Therefore, need badly a kind ofly to have wide range of applications, network compatibility is high, save Internet resources and two primary apparatus conflict detection methods to the broadcast domain no requirement (NR) residing for equipment.
Summary of the invention
The invention provides two primary apparatus conflict detection method and the network equipment in a kind of virtual switch unit VSU system, in order to solve existing pair of host apparatus detection method Problems existing, thus provide a kind of and have wide range of applications, network compatibility is high, save Internet resources and two primary apparatus conflict detection methods to the broadcast domain no requirement (NR) residing for equipment.
Two primary apparatus conflict detection method in a kind of virtual switch unit VSU system, comprising:
When first equipment determines that the virtual switch link VSL link of described VSU system disconnects, Internet Control Message Protocol ICMP request message is sent to the first line of a couplet equipment of described VSU system by the port of preset kind, to make described first line of a couplet equipment that described ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC address of described first equipment and the host apparatus election parameter of described first equipment;
First equipment receives the ICMP response message of described first line of a couplet device forwards;
When first equipment determines to carry in described ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and described second equipment, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of described first equipment, described first equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, described first equipment and described second equipment belong to described VSU system.
In described method, the port of described preset kind is determined in the following ways:
During described first equipment determination timer expiry, travel through all types of ports that this equipment is corresponding;
According to obtaining all types of port, filter out the port of described preset kind.
This preferred embodiment draws the port of preset kind by the port of this equipment of timing scan, the port of this preset kind is while carrying out other transfer of data, also for transmitting the icmp packet for detecting two primary apparatus conflict, thus the two primary apparatus conflict port of detection need not be set specially, save port resource.
In described method, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of described first equipment, described first equipment, described second equipment and the host apparatus election parameter of described second equipment and detect, specifically comprise:
Determine that the MAC Address of described first equipment is identical with the MAC Address of described second equipment, and when determining that the host apparatus election parameter of described first equipment is not identical with the host apparatus election parameter of described second equipment, determine to there is two primary apparatus conflict.
When two host apparatus appears in VSU system, the first equipment is identical with the MAC Address of the second equipment, but the host apparatus election parameter of the two is different, and therefore these features of the embodiment of the present invention determine that VSU system exists two primary apparatus conflict.
Described method, when determining to there is two primary apparatus conflict, also comprises:
According to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of described first equipment, described second equipment, judge whether described first equipment is host apparatus;
If so, described first equipment normally runs;
If not, described first equipment enters and returns to form.
The embodiment of the present invention, when determining to there is two primary apparatus conflict, carries out the election of host apparatus, thus the normal use of report card VSU system.
The present invention also provides a kind of network equipment, comprising:
Transmitting element, during for determining that the virtual switch link VSL link of virtual switch unit VSU system disconnects, Internet Control Message Protocol ICMP request message is sent to the first line of a couplet equipment of described VSU system by the port of preset kind, to make described first line of a couplet equipment that described ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC address of the described network equipment and the host apparatus election parameter of the described network equipment;
Receiving element, for receiving the ICMP response message of described first line of a couplet device forwards;
Detecting unit, during for determining to carry in described ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and described second equipment, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of the described network equipment, the described network equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, the described network equipment and described second equipment belong to described VSU system.
In the described network equipment, described transmitting element is also for determining the port of described preset kind in the following ways:
When determining timer expiry, travel through all types of ports that this equipment is corresponding;
According to obtaining all types of port, filter out the port of described preset kind.
In the described network equipment, described detecting unit specifically for:
Determine that the MAC Address of the described network equipment is identical with the MAC Address of described second equipment, and when determining that the host apparatus election parameter of the described network equipment is not identical with the host apparatus election parameter of described second equipment, determine to there is two primary apparatus conflict.
In the described network equipment, described detecting unit also for:
When determining to there is two primary apparatus conflict, according to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of the described network equipment, described second equipment, judge whether the described network equipment is host apparatus;
If so, the described network equipment normally runs;
If not, the described network equipment enters and returns to form.
The present invention also provides two primary apparatus conflict detection method in a kind of virtual switch unit VSU system, comprising:
Second equipment receives the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of virtual switch unit VSU system;
When second equipment determines described ICMP request message from described first equipment, ICMP response message for described ICMP request message is sent to described first line of a couplet equipment by the port of preset kind, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment, carry the MAC address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to described VSU system.
In described method, the port of described preset kind is determined in the following ways:
Resolve the source IP address carried in described ICMP request message;
From the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of port IP address and port type in described port information table.
The embodiment of the present invention, first resolving obtains from the source IP address in the ICMP request message of the first equipment, from port information table, inquire about port numbers corresponding to this source IP address according to this source IP address, thus can determine to need the port by what type that ICMP response message is returned to the first equipment
The embodiment of the present invention is sent by existing three layers of VALN and/or three layers of route mouth or receives icmp packet, can avoid additionally arranging the port detecting two host apparatus, thus save port resource.
The present invention also provides a kind of network equipment, comprising:
Receiving element, for receiving the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of virtual switch unit VSU system;
Transmitting element, during for determining described ICMP request message from described first equipment, ICMP response message for described ICMP request message is sent to described first line of a couplet equipment by the port of preset kind, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment, carry the MAC address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to described VSU system.
In the described network equipment, described transmitting element is also for determining the port of preset kind in the following ways:
Resolve the source IP address carried in described ICMP request message;
From the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of port IP address and port type in described port information table.
Two primary apparatus conflict detection method and the network equipment in the VSU system utilizing the embodiment of the present invention to provide, at least possesses following beneficial effect: ICMP agreement is publicly-owned agreement, equipment between the equipment of different vendor or same manufacturer all supports this agreement, therefore, all give tacit consent between the equipment of different vendor or between the equipment of same manufacturer and support to send icmp packet, network compatibility is good; By sending to the port of preset kind or receiving icmp packet, the port of this preset kind can be determined according to different scene, thus the scene that the member device that both can meet VSU system is positioned at same broadcast domain also can meet the scene being positioned at different broadcast domain; Not needing to set up a link specially for transmitting detection messages, saving Internet resources.
Accompanying drawing explanation
Two host apparatus detection method flow charts of the first equipment side that Fig. 1 provides for the embodiment of the present invention;
The determination preset kind port method flow diagram of the first equipment side that Fig. 2 provides for the embodiment of the present invention;
The IPCM message format schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The method flow diagram of the determination host apparatus that Fig. 4 provides for the embodiment of the present invention;
Two host apparatus detection method flow charts of the second equipment side that Fig. 5 provides for the embodiment of the present invention;
The determination preset kind port method flow diagram of the second equipment side that Fig. 6 provides for the embodiment of the present invention;
The connection diagram of the first line of a couplet equipment that Fig. 7 provides for the embodiment of the present invention and the first equipment and the second equipment;
An embodiment flow chart of two host apparatus detection methods that Fig. 8 provides for the embodiment of the present invention;
Another embodiment flow chart of two host apparatus detection methods that Fig. 9 provides for the embodiment of the present invention;
The network equipment schematic diagram that Figure 10 provides for the embodiment of the present invention;
Another network equipment schematic diagram that Figure 11 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, primary apparatus conflict detection method two in VSU system provided by the invention is illustrated in greater detail.
The embodiment of the present invention provides two primary apparatus conflict detection method in a kind of virtual switch unit VSU system, as shown in Figure 1, comprising:
Step 101, when first equipment determines that the VSL link of VSU system disconnects, ICMP request message is sent to the first line of a couplet equipment of VSU system by the port of preset kind, to make first line of a couplet equipment that ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC Address of described first equipment and the host apparatus election parameter of described first equipment.
Concrete, the master-slave equipment in VSU system is connected by VSL link, when VSL connect disconnect time, from being host apparatus with device upgrade, if now former host apparatus and the former problem that will produce two primary apparatus conflict from all non-power down of subscriber equipment.When the first equipment in the embodiment of the present invention is former host apparatus, the second equipment is former in equipment, the first equipment be former from subscriber equipment time, the second equipment is former host apparatus, and the first equipment and the second equipment belong to same VSU system, and are connected by VSL link.
When VSL link between the first equipment and the second equipment disconnects, first equipment sends ICMP (InternetControlMessageProtocol by the port of preset kind to first line of a couplet equipment, Internet Control Message Protocol) request message, by first line of a couplet equipment, this ICMP request message is transmitted to the second equipment.
The form of ICMP request message is the standard message form of ICMP agreement, the host apparatus election parameter of the first equipment and the MAC (MediaAccessControl of the first equipment is carried in the DATA field of ICMP request message, media interviews control) address, preferably, the host apparatus election parameter of the first equipment comprises following at least one item: the first equipment at the device numbering of VSU system, the first equipment at the priority facility of VSU system, the first equipment in the MAC Address of member device number corresponding to VSU system and the first equipment.
Step 102, the first equipment receives the ICMP response message of described first line of a couplet device forwards.
Concrete, the ICMP response message of other member device from VSU system can be transmitted to the first equipment by first line of a couplet equipment.
Step 103, when first equipment determines to carry in ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and the second equipment, elect the host apparatus of the MAC Address of parameter, the second equipment and the second equipment election parameter to carry out two primary apparatus conflict detect according to the MAC Address of the first equipment, the host apparatus of the first equipment, the first equipment and the second equipment belong to same VSU system.
The form of ICMP response message is the standard message form of ICMP agreement, the host apparatus election parameter of the second equipment and the MAC Address of the second equipment is carried in the DATA field of ICMP response message, preferably, the host apparatus election parameter of the second equipment comprises following at least one item: the second equipment at the device numbering of VSU system, the second equipment at the priority facility of VSU system, the second equipment in the MAC Address of member device number corresponding to VSU system and the second equipment.
Concrete, after first equipment receives the ICMP response message of first line of a couplet device forwards, whether the MAC Address that the DATA field of resolving this ICMP response message is carried is identical with the MAC Address of the first equipment, if, determine that this ICMP response message is the ICMP response message that the second equipment returns for the ICMP request message that the first equipment sends, and carry out two primary apparatus conflict detect according to the host apparatus election parameter of the first equipment, the host apparatus election parameter of the second equipment further; If not, do not carry out two primary apparatus conflict to detect.Preferably, the host apparatus in VSU system and from the two host apparatus detection methods all performing the embodiment of the present invention with equipment and provide.
The embodiment of the present invention, ICMP agreement is publicly-owned agreement, and the equipment between the equipment of different vendor or same manufacturer all supports this agreement, therefore, all give tacit consent between the equipment of different vendor or between the equipment of same manufacturer and support to send icmp packet, network compatibility is good; By sending to the port of preset kind or receiving icmp packet, the port of this preset kind can be determined according to different scene, thus the scene that the member device that both can meet VSU system is positioned at same broadcast domain also can meet the scene being positioned at different broadcast domain; Not needing to set up a link specially for transmitting detection messages, saving Internet resources.
Preferably, the embodiment of the present invention is applied in three-layer network environment, and namely the first equipment, the second equipment and first line of a couplet equipment are three-layer equipment.
Preferably, as shown in Figure 2, the port of described preset kind is determined in the following ways:
Step 201, during the first equipment determination timer expiry, travels through all types of ports that this equipment is corresponding.
Step 202, the first equipment is according to all types of ports obtained, and screening obtains the port of described preset kind.
Concrete, the first equipment and the second equipment belong to same VSU system, therefore two equipment store all mutually the port information of opposite equip..Arrange timer on the first device, all types of ports that first equipment that travels through when timer expiry is corresponding, and from all types of port, filter out the port of preset kind, the port of this preset kind belongs to the first equipment.Preferably, first equipment also filters out the port of the preset kind belonging to the second equipment, and create port table for the port of the preset kind of the second equipment, this port table is for the corresponding relation of the port numbers and Port IP (InternetProtocol, Internet protocol) address that store the port of the preset kind of the second equipment.
This preferred embodiment draws the port of preset kind by the port of this equipment of timing scan, the port of this preset kind is while carrying out other transfer of data, also for transmitting the icmp packet for detecting two primary apparatus conflict, thus the two primary apparatus conflict port of detection need not be set specially, save port resource.
Concrete, as shown in Figure 3, front 20 bytes are IP heading to the form of the icmp packet of standard, and middle 8 bytes are icmp packet head, and Type value is this icmp packet of 0 expression is ICMP response message, and Type value is this icmp packet of 8 expressions is ICMP request message.Due to private data can be added according to demand in the DATA field of ICMP, therefore, preferably, the MAC Address of described first equipment and the host apparatus election parameter of described first equipment are carried at the DATA field of described ICMP request message; The MAC Address of described second equipment and the host apparatus election parameter of described second equipment are carried at the DATA field of described ICMP request message.
Further preferably, the port of preset kind comprises three layers of vlan port and/or three layers of route mouth.
Concrete, if when the first equipment of VSU system and the second equipment belong to same broadcast domain, send ICMP request message by three layers of vlan port and receive ICMP response message by three layers of vlan port; If when the first equipment of VSU system and the second equipment do not belong to same broadcast domain, forwarding icmp packet with regard to needing by the mode of route, now sending ICMP request message by three layers of route mouth and receiving ICMP response message by three layers of route mouth.This preferred embodiment comprises simultaneously to three layers of vlan port and three layers of route mouths transmission ICMP request message, as long as receive the ICMP response message returned by three layers of vlan port or three layers of route mouth, two host apparatus can be carried out according to the content of carrying in message and detect.
Whether this preferred embodiment does not belong to same broadcast domain affect by VSU devices in system, is namely applicable to the scene that the first equipment and the second equipment belong to same broadcast domain, is applicable to again the scene that the first equipment and the second equipment belong to different broadcast domain.When the first equipment and the second equipment are positioned at same broadcast domain, when first equipment sends ICMP request message by first line of a couplet equipment to the second equipment, need the object IP address sending ICMP acknowledges requests to be revised as subnet broadcast IP address (such as 192.168.1.255), thus make the first line of a couplet equipment ICMP request message can be broadcast to the second equipment.
In step 103, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of described first equipment, described first equipment, described second equipment and the host apparatus election parameter of described second equipment and detect, specifically comprise:
Determine that the MAC Address of the first equipment is identical with the MAC Address of the second equipment, and, when determining that the host apparatus election parameter of the first equipment is not identical with the host apparatus election parameter of the second equipment, determine to there is two primary apparatus conflict.
Concrete, when determining that the MAC Address of the first equipment is not identical with the MAC Address of the second equipment, the first equipment normally works; If when the first equipment is identical with the host apparatus election parameter of the second equipment, the first equipment normally works.
The embodiment of the present invention, in VSU system the first equipment identical with the MAC Address of the second equipment and the two host apparatus election parameter identical.When two host apparatus appears in VSU system, the first equipment is identical with the MAC Address of the second equipment, but the host apparatus election parameter of the two is different, and therefore these features of the embodiment of the present invention determine that VSU system exists two primary apparatus conflict.
Preferably, as shown in Figure 4, when determining to there is two primary apparatus conflict, also comprise:
Step 301, according to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of described first equipment, described second equipment, judges whether the first equipment is host apparatus, if, perform step 302, otherwise, perform step 303.
Concrete, the host apparatus election parameter of the first equipment comprises following at least one item: the first equipment at the device numbering of VSU system, the first equipment at the priority facility of VSU system, the first equipment in the MAC Address of member device number corresponding to VSU system and the first equipment; The host apparatus election parameter of the second equipment comprises following at least one item: the second equipment at the device numbering of VSU system, the second equipment at the priority facility of VSU system, the second equipment in the MAC Address of member device number corresponding to VSU system and the second equipment.Existing host apparatus election regulation can be utilized to judge, and whether the first equipment is host apparatus, is not described in detail here to host apparatus election regulation.
Step 302, the first equipment normally runs.
Step 303, the first equipment enters and returns to form.
Concrete, when determining that the first equipment is host apparatus, the first equipment normally runs, and when the first equipment is non-primary equipment, this first equipment enters recovery (recovery) state.
The embodiment of the present invention, when determining to there is two primary apparatus conflict, carries out the election of host apparatus, thus the normal use of report card VSU system.
Be more than the explanation of two primary apparatus conflict detection method in the VSU system to the first equipment side, in the VSU system provided the embodiment of the present invention at the second equipment side below, two primary apparatus conflict detection method is described, and as shown in Figure 5, comprising:
Step 401, the second equipment receives the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of VSU system.
Wherein, described ICMP request message is from the first equipment.
Step 402, when second equipment determines ICMP request message from the first equipment, send ICMP response message for this ICMP request message by the port of preset kind to first line of a couplet equipment, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment.Wherein, carry the MAC Address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to same VSU system.
Wherein, can determine that whether ICMP request message is from the first equipment according to the device number carried in ICMP request message or MAC Address, specifically comprise: when determining that the device number of the VSU system of carrying in ICMP request message is device number corresponding to the first equipment, determine that this ICMP request message is from the first equipment, or, when determining the MAC Address of the first equipment carried in ICMP request message, determine that this ICMP request message is from the first equipment.
Preferably, as shown in Figure 6, the port of preset kind is determined in the following ways:
Step 501, resolves the source IP address carried in described ICMP request message.
Concrete, the IP head of ICMP request message carries the source IP address sending this ICMP request message, and this former IP address is the IP address that the port of this ICMP request message of transmission is corresponding.
Step 502, from the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of the port of port IP address and preset kind in described port information table.
Concrete, store the port information of the first equipment in the second equipment, from the port information of the first equipment, filter out the port of preset kind and the port for this preset kind generates port information table.The corresponding relation of IP address corresponding to the port of the first equipment and port numbers is have recorded in this port information table.
This preferred embodiment, first resolving obtains from the source IP address in the ICMP request message of the first equipment, from port information table, inquire about port numbers corresponding to this source IP address according to this source IP address, thus can determine to need the port by what type that ICMP response message is returned to the first equipment.Preferably, the port of preset kind comprises three layers of vlan port and/or three layers of route mouth.
The port information table prestored is for the corresponding relation of the port of the IP address and preset kind that store the first equipment, such as: when the port of preset kind is L3VLAN (three layers of VLAN), corresponding IP address is 192.168.1.1, when the port of preset kind is L3ROUTE (three layers of route), corresponding IP address is 192.168.2.1.When the source IP address carried in ICMP request message is identical with the IP address in the port information table prestored, the port of preset kind can be determined, such as, when source IP address is 192.168.1.1, the port of the preset kind determined is L3VLAN, concrete, the port type that this port numbers is corresponding can be determined according to concrete port numbers.
Concrete, the MAC Address of self and primary election parameter are carried in the DATA field of ICMP response message and send to first line of a couplet equipment by the second equipment, to make first line of a couplet device forwards to the first equipment.
When the first equipment and the second equipment are positioned at same broadcast domain, when second equipment sends ICMP response message by first line of a couplet equipment to the first equipment, need the object IP address sending ICMP response message to be revised as subnet broadcast IP address (such as 192.168.1.255), thus make the first line of a couplet equipment ICMP response message can be broadcast to the first equipment.
In the VSU system provided the embodiment of the present invention below in conjunction with specific embodiment, two host apparatus detection method is described in detail.
Embodiment one
Scene limits: VSU system connection diagram as shown in Figure 7, wherein the first equipment and the second equipment are positioned at same broadcast domain, and open anti-loop agreement STP, the port of the first equipment and the second equipment and first line of a couplet equipment connection belongs to same three layers of VLAN, because the first equipment and the second equipment belong to same VSU system, therefore the IP address that the three layers of vlan port of the two are corresponding is identical, suppose that the IP address of the first equipment of VSU system and three layers of vlan port of the second equipment is 192.168.1.1, subnet mask is 255.255.255.0, first line of a couplet equipment also configures three layers of VLAN, IP address is 192.168.1.2, subnet mask is 255.255.255.0, wherein, the root of STP is not at the first equipment or the second equipment side, blocker port will at the first equipment or the second equipment side.
Under this scene, as shown in Figure 8, in the VSU system that the embodiment of the present invention provides, two host apparatus detection method comprises:
Step 701, during the first equipment determination timer expiry, scans all types of port of this first equipment, filters out three layers of vlan port.
Step 702, subnet broadcast address 192.168.1.255 is revised as from 192.168.1.1 in the object IP address sending ICMP request message by the first equipment.
Concrete, because the first equipment and the second equipment are in same broadcast domain, therefore the three layers of vlan port of the two have identical IP address, all non-192.168.1.1 in IP address that namely the three layers of vlan port of the two are corresponding.In order to prevent IP address conflict, subnet broadcast address is revised as in object IP address.
Step 703, when determining that VSL link disconnects, ICMP request message is sent to first line of a couplet equipment by the three layers of vlan port filtered out, the object IP address of this ICMP request message is 192.168.1.255, carries the MAC Address of the first equipment and the host apparatus election parameter of the first equipment in this ICMP request message.
Step 704, this ICMP request message, according to the object IP address of ICMP request message, is transmitted to the second equipment with the forms of broadcasting by first line of a couplet equipment.
Step 705, second equipment receives the ICMP request message of first line of a couplet device forwards, and resolve the MAC Address of carrying in this ICMP request message, when determining that this MAC Address is the MAC Address of the first equipment, according to the source IP address carried in ICMP request message, from the port table prestored, inquiry obtains the port of preset kind corresponding to this source IP address is three layers of vlan port.
Concrete, this source IP address is the IP address that the first equipment sends three layers of VLAN mouth correspondence of ICMP request message.
Step 706, subnet broadcast address 192.168.1.255 is revised as in the object IP address of ICMP response message, and by the three layers of vlan port determined, ICMP response message is sent to first line of a couplet equipment, carry the MAC Address of the second equipment and the host apparatus election parameter of the second equipment in this ICMP response message.
Step 707, ICMP response message is transmitted to the first equipment with the form of broadcast by first line of a couplet equipment.
Step 708, first device parses is from the ICMP response message of the second equipment, when determining the host apparatus election parameter of the MAC Address of the second equipment carried in ICMP response message and described second equipment, carry out two primary apparatus conflict according to the host apparatus election parameter of the MAC Address of the first equipment, the first equipment, the MAC Address of the second equipment and the host apparatus election parameter of the second equipment and detect.
Embodiment two
Scene limits: VSU system connection diagram as shown in Figure 7, wherein the first equipment and the second equipment are positioned at different broadcast domain, the port of the first equipment and the second equipment and first line of a couplet equipment connection is all three layers of route mouth, suppose that the IP address of three layers of route mouth of the first equipment is 192.168.1.1, subnet mask is 255.255.255.0, the IP address of three layers of route mouth of the second equipment is 192.168.2.1, subnet mask is 255.255.255.0, three layers of route mouth IP that first line of a couplet equipment is connected with the first equipment are 192.168.1.2, three layers of route mouth IP that first line of a couplet equipment is connected with the second equipment are 192.168.2.2.
Under this scene, as shown in Figure 9, in the VSU system that the embodiment of the present invention provides, two host apparatus detection method comprises:
Step 801, during the first equipment determination timer expiry, scans all types of port of this first equipment, filters out three layers of route mouth.
Step 802, when determining that VSL link disconnects, ICMP request message is sent to first line of a couplet equipment by the three layers of route mouth filtered out, the object IP address of this ICMP request message is 192.168.2.1, carries the MAC Address of the first equipment and the host apparatus election parameter of the first equipment in this ICMP request message.
Step 803, after first line of a couplet equipment receives this ICMP request message, this ICMP request message is transmitted to the second equipment by the routing table according to self.
Step 804, second equipment receives the ICMP request message of first line of a couplet device forwards, and resolve the MAC Address of carrying in this ICMP request message, when determining that this MAC Address is the MAC Address of the first equipment, according to the source IP address carried in ICMP request message, from the port table prestored, inquiry obtains the port of preset kind corresponding to this source IP address is three layers of route mouth.
Concrete, this source IP address is the IP address that the first equipment sends three layers of route mouth correspondence of ICMP request message.
Step 805, ICMP response message is sent to first line of a couplet equipment by the three layers of route mouth determined by the second equipment, carries the MAC Address of the second equipment and the host apparatus election parameter of the second equipment in this ICMP response message.
Step 806, after first line of a couplet equipment receives this ICMP response message, this ICMP request message is transmitted to the first equipment by the routing table according to self, and the object IP ground of this ICMP response message is 192.168.1.1.
Step 807, first device parses is from the ICMP response message of the second equipment, when determining the host apparatus election parameter of the MAC Address of the second equipment carried in ICMP response message and described second equipment, carry out two primary apparatus conflict according to the host apparatus election parameter of the MAC Address of the first equipment, the first equipment, the MAC Address of the second equipment and the host apparatus election parameter of the second equipment and detect.
Based on the inventive concept identical with the embodiment shown in Fig. 1, the embodiment of the present invention also provides a kind of network equipment, as shown in Figure 10, comprising:
Transmitting element 901, during for determining that the VSL link of VSU system disconnects, Internet Control Message Protocol ICMP request message is sent to the first line of a couplet equipment of described VSU system by the port of preset kind, to make described first line of a couplet equipment that described ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC Address of the described network equipment and the host apparatus election parameter of the described network equipment;
Receiving element 902, for receiving the ICMP response message of described first line of a couplet device forwards;
Detecting unit 903, during for determining to carry in described ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and described second equipment, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of the described network equipment, the described network equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, the described network equipment and described second equipment belong to described VSU system.
Preferably, in the described network equipment, described transmitting element is also for determining the port of described preset kind in the following ways:
When determining timer expiry, travel through all types of ports that this equipment is corresponding;
According to obtaining all types of port, filter out the port of described preset kind.
Preferably, in the described network equipment, the DATA field of described ICMP request message carries the MAC Address of the described network equipment and the host apparatus election parameter of the described network equipment;
The DATA field of described ICMP response message carries the MAC Address of described second equipment and the host apparatus election parameter of described second equipment.
Preferably, in the described network equipment, described detecting unit specifically for:
Determine that the MAC Address of the described network equipment is identical with the MAC Address of described second equipment, and when determining that the host apparatus election parameter of the described network equipment is not identical with the host apparatus election parameter of described second equipment, determine to there is two primary apparatus conflict.
Preferably, in the described network equipment, described detecting unit also for:
When determining to there is two primary apparatus conflict, according to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of the described network equipment, described second equipment, judge whether the described network equipment is host apparatus;
If so, the described network equipment normally runs;
If not, the described network equipment enters and returns to form.
Preferably, in the described network equipment, the port of described preset kind comprises three layers of vlan port and/or three layers of route mouth.
Based on the inventive concept identical with the embodiment shown in Fig. 5, the embodiment of the present invention also provides a kind of network equipment, as shown in figure 11, comprising:
Receiving element 1001, for receiving the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of described VSU system, wherein, described ICMP request message is from the first equipment;
Transmitting element 1002, during for determining described ICMP request message from described first equipment, ICMP response message for described ICMP request message is sent to described first line of a couplet equipment by the port of preset kind, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment, carry the MAC Address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to described VSU system.
Preferably, in the described network equipment, described transmitting element is also for determining the port of preset kind in the following ways:
Resolve the source IP address carried in described ICMP request message;
From the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of port IP address and port type in described port information table.
Preferably, in the described network equipment, the port of described preset kind comprises three layers of vlan port and/or three layers of route mouth.
Two primary apparatus conflict detection method and the network equipment in the VSU system utilizing the embodiment of the present invention to provide, at least possesses following beneficial effect: ICMP agreement is publicly-owned agreement, equipment between the equipment of different vendor or same manufacturer all supports this agreement, therefore, all give tacit consent between the equipment of different vendor or between the equipment of same manufacturer and support to send icmp packet, network compatibility is good; By sending to the port of preset kind or receiving icmp packet, the port of this preset kind can be determined according to different scene, thus the scene that the member device that both can meet VSU system is positioned at same broadcast domain also can meet the scene being positioned at different broadcast domain; Not needing to set up a link specially for transmitting detection messages, saving Internet resources.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a two primary apparatus conflict detection method in virtual switch unit VSU system, is characterized in that, comprising:
When first equipment determines that the virtual switch link VSL link of described VSU system disconnects, Internet Control Message Protocol ICMP request message is sent to the first line of a couplet equipment of described VSU system by the port of preset kind, to make described first line of a couplet equipment that described ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC address of described first equipment and the host apparatus election parameter of described first equipment;
First equipment receives the ICMP response message of described first line of a couplet device forwards;
When first equipment determines to carry in described ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and described second equipment, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of described first equipment, described first equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, described first equipment and described second equipment belong to described VSU system.
2. the method for claim 1, is characterized in that, the port of described preset kind is determined in the following ways:
During described first equipment determination timer expiry, travel through all types of ports that this equipment is corresponding;
According to obtaining all types of port, filter out the port of described preset kind.
3. the method for claim 1, it is characterized in that, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of described first equipment, described first equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, specifically comprise:
Determine that the MAC Address of described first equipment is identical with the MAC Address of described second equipment, and when determining that the host apparatus election parameter of described first equipment is not identical with the host apparatus election parameter of described second equipment, determine to there is two primary apparatus conflict.
4. method as claimed in claim 3, is characterized in that, when determining to there is two primary apparatus conflict, also comprise:
According to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of described first equipment, described second equipment, judge whether described first equipment is host apparatus;
If so, described first equipment normally runs;
If not, described first equipment enters and returns to form.
5. a network equipment, is characterized in that, comprising:
Transmitting element, during for determining that the virtual switch link VSL link of virtual switch unit VSU system disconnects, Internet Control Message Protocol ICMP request message is sent to the first line of a couplet equipment of described VSU system by the port of preset kind, to make described first line of a couplet equipment that described ICMP request message is transmitted to the second equipment, in described ICMP request message, carry the MAC address of the described network equipment and the host apparatus election parameter of the described network equipment;
Receiving element, for receiving the ICMP response message of described first line of a couplet device forwards;
Detecting unit, during for determining to carry in described ICMP response message the host apparatus election parameter of the MAC Address of the second equipment and described second equipment, carry out two primary apparatus conflict according to the MAC Address of the host apparatus election parameter of the MAC Address of the described network equipment, the described network equipment, described second equipment and the host apparatus election parameter of described second equipment to detect, the described network equipment and described second equipment belong to described VSU system.
6. the network equipment as claimed in claim 5, it is characterized in that, described transmitting element is also for determining the port of described preset kind in the following ways:
When determining timer expiry, travel through all types of ports that this equipment is corresponding;
According to obtaining all types of port, filter out the port of described preset kind.
7. the network equipment as claimed in claim 5, is characterized in that, described detecting unit specifically for:
Determine that the MAC Address of the described network equipment is identical with the MAC Address of described second equipment, and when determining that the host apparatus election parameter of the described network equipment is not identical with the host apparatus election parameter of described second equipment, determine to there is two primary apparatus conflict.
8. the network equipment as claimed in claim 7, is characterized in that, described detecting unit also for:
When determining to there is two primary apparatus conflict, according to host apparatus election parameter and the default host apparatus election regulation of the host apparatus election parameter of the described network equipment, described second equipment, judge whether the described network equipment is host apparatus;
If so, the described network equipment normally runs;
If not, the described network equipment enters and returns to form.
9. a two primary apparatus conflict detection method in virtual switch unit VSU system, is characterized in that, comprising:
Second equipment receives the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of described VSU system;
When second equipment determines described ICMP request message from described first equipment, ICMP response message for described ICMP request message is sent to described first line of a couplet equipment by the port of preset kind, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment, carry the MAC address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to described VSU system.
10. method as claimed in claim 9, it is characterized in that, the port of described preset kind is determined in the following ways:
Resolve the source IP address carried in described ICMP request message;
From the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of port IP address and port type in described port information table.
11. 1 kinds of network equipments, is characterized in that, comprising:
Receiving element, for receiving the Internet Control Message Protocol ICMP request message of the first line of a couplet device forwards of virtual switch unit VSU system;
Transmitting element, during for determining described ICMP request message from described first equipment, ICMP response message for described ICMP request message is sent to described first line of a couplet equipment by the port of preset kind, to make described first line of a couplet equipment, described ICMP response message is transmitted to described first equipment, carry the MAC address of described second equipment and the host apparatus election parameter of described second equipment in described ICMP response message, described first equipment and described second equipment belong to described VSU system.
12. network equipments as claimed in claim 11, is characterized in that, described transmitting element is also for determining the port of preset kind in the following ways:
Resolve the source IP address carried in described ICMP request message;
From the port information table prestored, inquiry obtains port type corresponding to described source IP address, records the corresponding relation of port IP address and port type in described port information table.
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