CN1791016A - Multi-interface port management - Google Patents
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- CN1791016A CN1791016A CN 200510117132 CN200510117132A CN1791016A CN 1791016 A CN1791016 A CN 1791016A CN 200510117132 CN200510117132 CN 200510117132 CN 200510117132 A CN200510117132 A CN 200510117132A CN 1791016 A CN1791016 A CN 1791016A
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Abstract
The present embodiments of the invention provide systems and methods for managing forwarding devices that support hybrid multi-interface ports. This type of device supports a plurality of physical ports, with each port supporting a plurality of interface media. The interface media supported in each port may be of varying media types, such as one may be copper and the other fiber. The systems and methods also handle failover conditions, thus ensuring network redundancy and reliability.
Description
The cross reference of related application
The application requires to submit on November 1st, 2004, name is called the U.S. Provisional Patent Application No.60/624 of " multi-interface port management ", 419 priority, for this reason with it by with reference to introducing the application.
Technical field
The present invention relates to many interfaces Hybrid port of forwarding unit, relate more specifically to the method that has the Hybrid port of a plurality of interface medium and manage this port.
Background technology
Ethernet switch can only be managed one type physical interface or interface medium/Media Interface Connector at present in a port.As a result, this configuring ports, control and use just are only limited to the physical interface or the interface medium of the current particular type that takies.
Also there is not at present method can the port such as the multiple physical interface type of reception of copper and optical fiber be managed.Therefore, current application with port of a plurality of physical interfaces is subject to the restriction of Ethernet switch management.A kind of like this restriction comprises, can not use multi-interface port to carry out the network redundancy of network reliability under the situation of not using extra port and device at present.
Be starved of a kind of solution to the problems described above and equipment.The invention solves these problems.
Summary of the invention
Current embodiment of the present invention is provided for managing the system and method for the forwarding unit of supporting the mixing multi-interface port.Such equipment is supported one or more physical ports, and each port is supported a plurality of interface medium.For example, two interface medium that realize in each port can be to comprise wired and wireless any media type, for example comprise copper base conductor and optical fiber.
Forwarding unit of the present invention also supports failure to shift (failover) and redundancy.Mean that different with the traditional forwarding unit that for example carries out relaying at different port on the port 2, when the physical interface on the port one was failed, forwarding unit of the present invention used port one to carry out relaying, but what be to use is distinct interface medium in the port one.
Forwarding unit of the present invention generally comprises one or more physical ports, and each physical port is supported a plurality of interface medium, in one of them port simultaneously only interface medium be movable or work.This equipment also comprises information database, and this information database comprises medium relevant parameter or the medium parameter that is used for each interface medium.This information database also comprises the port relevant information, and this port relevant information comprises principal interface medium and work at present interface medium.
An alternative embodiment of the invention provides a kind of method of mixing forwarding unit of managing.This forwarding unit is supported one or more physical ports, and each physical port is supported a plurality of interface medium, in one of them port simultaneously only an interface medium be work.This method may further comprise the steps: be each port assignment principal interface medium; Be each port assignment working media.
Description of drawings
The present invention will be described with the mode of example, but be not limited to accompanying drawing, wherein:
Fig. 1 is for mixing the block diagram of the high layer function parts of forwarding unit according to an embodiment of the invention;
Fig. 2 is according to an embodiment of the invention by the block diagram of the network of Simple Network Management Protocol (SNMP) management;
Fig. 3 is the high-rise hierarchical structure of the object of the information of representing relevant interface medium of supporting or physical interface according to embodiments of the invention in each physical port;
The example table of Fig. 4 for how port being carried out index or reference according to embodiments of the invention explanations;
Fig. 5 is the functional-block diagram of similar Fig. 1, but shows more instruction module details;
Fig. 6 is for illustrating two preferably block diagrams of the high level of failure metastasis according to embodiments of the invention;
Fig. 7 selects and fails that to shift be the flow chart of the high level how to take place the interface medium that has been configured or physical interface for how illustrating according to embodiments of the invention;
Fig. 8 A is the flow chart that shows the operation of failure shift module;
Fig. 8 B is the flow chart that shows the operation of link monitoring module;
Fig. 9 A, 9B and 9C are the schematic block diagram according to the high level of the supported various redundant network configurations of embodiments of the invention.
Embodiment
The present invention will be described in the mode of example for following detailed, rather than to the invention principle limit, this explanation can clearly make those skilled in the art implement and use the present invention, below declarative description several embodiments of the present invention, variation and distortion, selectable technical scheme and purposes of the present invention, comprise and currently think what is to implement optimal mode of the present invention.
In order to understand accompanying drawing better, in the following description, the reference number of the similar numbering in each figure and the description is used for representing same or similar structure, action, operation or treatment step.In addition, the reference number of 100 sequence numbers, for example 100 and 102, in Fig. 1, introduce at first, and the reference number of 200 sequence numbers, for example 200 and 250, in Fig. 2, introduce at first, like that.Therefore, the reference number of 900 sequence numbers, for example 902 and 992, in Fig. 9, introduce at first.
Fig. 1 is the functional-block diagram that mixes the high level of forwarding unit 100, and this mixes forwarding unit 100 such as exchange and/or routing device, comprises a plurality of port ones 10,120 and 130.This exchange and/or routing device 100 are also referred to as switch here, preferably are operated in the multilayer of OSI(Open Systems Interconnection) reference model.So these switches or forwarding unit 100 can be operated in the data link layer (layer 2) and network layer (layer 3) of osi model.
Different with typical switch, switch 100 of the present invention comprises one or more Hybrid port parts 174, is used for supporting a plurality of physical interfaces or the interface medium 112,114,116,122,124,126,132,134 and 136 of selected port one 10,120 and 130.A plurality of physical interfaces in each port one 10,120 and 130 may be different mutually, and for example, the interface medium 1 (M1112) in the port one is a copper, and the interface medium 2 (M2114) in the same port is an optical fiber.Interface medium M3116 and interface medium M4122 can be same type.In certain embodiments, for example, in a plurality of physical interfaces one as principal interface or be used for collocating medium with the adjacent node swap data, and remaining physical interface shifts for failure and supports to provide redundant.In a preferred embodiment, all ports are preferably supported a plurality of physical interfaces, but the one or more ports in this equipment 100 only can be supported a physical interface.
A plurality of physical interfaces or interface medium are selected from the group that includes but not limited to following medium, that is: wire medium, such as unshielded twisted pair (UTP), Shielded Twisted Pair, multimode fiber, monomode fiber and other via the cable of photon transmission, more at large via the cable of electric transmission; Wireless medium is such as less radio-frequency (RF) and infrared ray.Each physical interface is associated with the distinct sets of being made up of its characteristic, behavior, state, Counter Value (counter value), attribute and other parameterized information.Here these group data are commonly referred to as medium parameter or medium relevant parameter.
These medium parameters comprise that speed (for example; 10Mbps and 100Mbps), type of cable (for example; 2 pairs 3 class twisted-pair feeders, 2 core single mode or dual mode optical fibers), network segment length (for example, 100m and 2000m speed), frame sign, consensus standard, linking status, Status of Backups or the like.These medium parameters are stored in the information database, and this information database is preferably management information base (MIB) 160.
Mixing forwarding unit 100 of the present invention generally comprises instruction module 150, device hardware part 170 and information database 160.This information database 160 also can be used as the part storage of storage hardware parts 170 and/or incorporates into as the part of software part code 150.
In this embodiment of the present invention, device hardware 170 parts comprise one or more Hybrid port parts 174 as previously described, and other hardware device parts 172 of carrying out the various functions of typical forwarding unit or switch 100.Miscellaneous equipment parts 172 may comprise, for example, buffer, Content Addressable Memory, queue management device, transmit, forwarding processor, grader.
Those of ordinary skill in the art should be appreciated that the one or more functions in the equipment 100 discussed here can incorporate in the software and hardware, promptly in the firmware.In another embodiment, information database 160 is merged in the software part 150.
Fig. 2 is the high-level block diagram that uses the network of Simple Network Management Protocol (SNMP) management according to embodiments of the invention.SNMP is a kind of industry-standard protocol collection that is used for managing network device.Also can use other NMP, as remote monitoring (rmon).
The snmp management network of the preferred embodiment generally comprises three parts: network management system (nms) or snmp management device 210, one or more managed devices 250,260,290 and one or more agency 252,262 and 292.
NMS 210 preferably monitors managed devices and controls.This NMS can be encapsulated in the user interface application, so that network management.In any managed networks, there are one or more NMS.
Managed devices 250,260,290 is a network node, comprises agency 252,262,292.Managed devices is collected and management information, and via the SNMP agency this information can be used for NMS.Managed devices can be router and access server, switch and bridge, hub, main frame or printer.In one embodiment of the invention, forwarding unit 100 is a managed networks equipment 250,260,290.
Agency 252,262,292 is preferably network management instruction module or program, is generally the software program that resides in the managed devices 250,260,290.The agency is connected by interface with management information (MIB) 254,264,294 or communicates by letter, thereby and knows management information, particularly facility information.In one embodiment of the invention, agency the 252,262, the 292nd, the part such as the instruction module 150 of software part of forwarding unit 100.
The agency makes response to the read-write requests 280 from snmp management device/NMS, and the event notice 280 that will be called trap (trap) sends to the snmp management device.Trap is to generate the non-request asynchronous event that changes to show by managed networks equipment.These traps are to the NMS notice and warn situation about having occurred such as the limit, promptly surpass predetermined value and link disconnection.Managed devices should dispose like this, and promptly instruction module 150, particularly acts on behalf of 252,262,292, sends trap to NMS, fails in order to the particular medium interface in the indication particular port.
MIB 254,264,294 is a definition set, and its attribute to managed object in the managed devices, state and characteristic define and describe.It also comprises the medium parameter of each interface medium.Managed object can be any project in the managed devices, and it is selected comes out to be used for to find, monitoring or user intervention and correction.In this embodiment, port and interface medium are managed object.
Managed object comprises one or more object instances, and in this example, these object instances are actually variable.An object identifier (perhaps object ID) identifies a managed object uniquely.Two types managed object is generally arranged: scalar (scalar) and sheet format (tabular).Independent object instance of scalar object definition.The sheet format object definition is referred to a plurality of relevant object instance in the MIB form.
This MIB may be from the manufacturer with predetermined value, such as the medium parameter of each interface medium that can use for the network equipment.Value among the MIB also can be modified, and for example uses NMS to make amendment by the network manager.This MIB incorporates into preferably as the part of instruction module 150.
One of object identifier that uses in the network management-application based on SNMP is interface index, ifIndex.This ifIndex is used to dock oral thermometer and conducts interviews.IfIndex is the unique identification number relevant with physical interface or logic interfacing, and (primary key) is similar with major key.In this embodiment of the present invention, it is relevant and identify this port that each ifIndex and single port are preferably physical port.
Fig. 3 is the schematic diagram of the information that can obtain and be provided with for switch 100 in a preferred embodiment of the invention.Logically, MIB is organized in the hierarchical tree structure as shown in the figure, and the hierarchical structure here can be described to have the tree of root.Yet the hierarchical structure of object in the information database is not represented in such description inevitably.The top structure of MIB tree defines in requests for comments (RFC) 1155 and RFC 1213.Various other RFC administer the other parts of mib structure.
In a preferred embodiment of the invention, another object is added in the interface table.The generally definition in RFC 2863 and RFC 1213 of interface table.This port related object is called as " collocating medium type "-comprise principal interface medium and failure transfer mode.This media type object generally is mapped to various interface medium or the physical interface 112,114,116 that is present in each port or the port numbers.Each physical port still preferably uses unique ifIndex to carry out index.
By adding the collocating medium type object, NMS can obtain, for example, obtain be provided with-define with configuration-with the interior relevant medium relevant parameter of particular physical interface of particular port/port numbers.Fig. 1 and Fig. 3 combine and have described this point.For example, if exemplary switch of the present invention has the primary medium that is set to medium 1M1112, and NMS requires the relevant information of interface medium 2 M2 114 in visit and the port one 10, NMS preferably carries out the processing of two steps so: (a) in a first step, NMS is set to Media Interface Connector M2114 with " primary media type "; (b) in second step, NMS uses the ifIndex of port 110 to carry out and obtains/setting operation.In second step, these obtain/and setting operation carries out on the interface medium M2114 of port one 110.If NMS skips first step of " primary media type " being changed into interface medium M2 114, so all obtaining/setting operation is carried out on current principal interface medium 112.
The network equipment 100 is a forwarding unit, be have its oneself MIB by management node.This MIB comprises each port, i.e. the information of port one 110, port 2120 and port N 130.It also comprises Media Interface Connector information 302,304,306 and 308 and port information, thereby make NMS or at least the network manager understand, port one 110 has three physical interfaces 112,114 and 116 shown in subtree 320, and has the primary medium 332 and the working media 334 of configuration.
In a preferred embodiment of the invention, the information relevant with each port is managed via interface table and SNMP, as mentioned above.Embodiment hereto, physical port is still identified by a unique interface index,, is preferably ifIndex that is, like this, allows the back compatible to existing network management-application.In addition, management system application comprises the application based on web, can easily use prior protocols and order to develop, these agreements and order include but not limited to SNMP, RMON and HTTP (HTTP), are similar to these and use the independent interface port work that how to utilize at present.
The relevant object in another port that preferably is present in the information database of switch 100 is a working media object 334.In a preferred embodiment of the invention, at given time, only an interface is movable in each port one 10,120 and 130.This active port is designated working media 334.
Collocating medium object 332 comprises or refers to principal interface medium 352, and this principal interface medium is that the keeper selects or software default, and is identified as the principal interface medium.In a preferred embodiment, collocating medium object 332 is also represented failure transfer mode 350.Preferably have two kinds the failure transfer mode-redundancies with compulsory.Redundant mode represents that failure is shifted automatically, and compulsory mode represents that manually failure is shifted.In an optional embodiment, failure transfer mode information stores is in the object that is different from the principal interface dielectric object.
Preferred collocating medium object 332 can comprise the principal interface dielectric value of acquiescence, such as first interface medium in the port.This can be provided with by device software 150 when equipment 100 starts.Preferably the example of collocating medium object value comprises, for example, and " forced medium 1 ", " forced medium 2 " and " redundant medium 1 ".Working media 334 is meant it is movable and interface medium 354 work at present.The example of working media value comprises " medium 1 " and " medium 2 " etc.
Collocating medium 352 does not need identical with interface medium in the working media object 354.For example, interface medium selection or acquiescence is failed and can be substituted by another redundant interface medium.Like this, though collocating medium 332 comprises the medium of being selected by the keeper, working media 334 comprises medium or the physical interface that back current active and work are shifted in failure.Though each seed tree under node/leaf node port 2120, port N 130, interface 2114 and the interface 3116 does not draw clearly, but those of ordinary skill in the art will appreciate that, information relevant with each port and physical interface separately thereof can be similar to and foregoingly dispose like that and obtain.
Fig. 4 is described exemplary table 402, and this has been expressed the relation of ifIndex and port and how to have used ifIndex to visit primary dielectric object of configuring ports and working media object.Each ifIndex value is mapped to the corresponding physical port.For example, in first row 410, the ifIndex value is " 1 ", represents port one (110 among Fig. 1).In next line 412, the ifIndex value is " 2 ", represent port 2 (120 among Fig. 1), and the ifIndex value is " N ", then represents port N414 (130 among Fig. 1).Therefore, each port is identified uniquely by the ifIndex value of correspondence, preferably from numeral 1.Like this, if five ports are arranged, so Dui Ying ifIndex value from " 1 " to " 5 "-" 1 " is a port one, and " 2 " are port 2, and " 3 " are port 3, or the like.But exemplary table 402 might not be that the graphical user interface that keeper or user see shows.
Fig. 5 is a high layer function block diagram that is similar to Fig. 1, and exemplary instruction repertorie module 150 is described in further detail.In a preferred embodiment, instruction module 150 comprises three parts.First parts are agency or database communication machine 508.In this preferred embodiment, this agency is for acting on behalf of with the corresponding to SNMP described in Fig. 2.This module 508 communicates with information database 160, to obtain and to be provided for the parameter information of each interface medium and each port.
Link monitoring module 504 is the parts that comprise program step, and when carrying out these program steps, this module 504 monitors continuously to the condition of work of each Media Interface Connector in each port.This monitor module 504 communicates with failure shift module 512, particularly, the specific interface medium of notice failure shift module is not in acceptable condition of work, that is, be in failure jump condition-notice failure shift module and should start the failure transfer processing.
Failure shift module 512 starts and operates the metastasis of manually or automatically failing of forwarding unit 100.Failure shift module 512 also communicates with information database 160, with the medium parameter information in acquisition and the configuration information database 160.Preferably, comprise that also other instruction module carries out other function 502 of forwarding unit 100.These parts can comprise such program command parts, and promptly when carrying out it, these parts carry out protocol package and handle and obtain routing iinformation.
Fig. 6 is the block diagram of the high level of two preferred general failure metastasis of expression the present invention.After having distributed primary collocating medium by keeper or default software, the failure of the collocating medium 602 of this distribution will start failure metastasis 604 and 606.The failure here is meant generally that the link of Media Interface Connector is in and satisfies the failure jump condition, for example, surpasses predetermined failure threshold values, operating state/condition in.Fail condition can be a kind of condition that guarantees that another interface medium is taken over, and such condition comprises: link disconnects; Too much business is damaged; Too much circuit noise and too much cyclic redundancy check (CRC) fault.If the redundant failure of collocating medium type object 332 indications transfer mode then starts failure automatically and shifts 604.On the other hand, force the failure transfer mode, then start manually failure and shift 606 if collocating medium type object 332 comprises.
Fig. 7 is the flow chart of the high level of the exemplary process of description operation failure transfer.In general, in order to begin, start forwarding unit 100.In this initialization operation, device software 150 is each port and corresponding interface medium setting (702) default media parameter and acquiescence principal interface medium, comprises the failure transfer mode in the primary dielectric object of configuration.This default information for example, is written in the switch memory.Default parameters obtains from information database, and this information database is introduced preferably as the part of program command or instruction module, rather than is included in independently in the data source.In one embodiment, these parameters provide as the part of the switch software that is provided by equipment manufacturers.In this embodiment, the default media parameter of each interface medium in each port is included in the program command.
If the keeper wants to change each configuring ports media type object, for example, select a different interface medium type to be used as primarily (test 706), this keeper can be by realizing these operations for the primary media type 332 that be disposed a new media type distribution (704) so.Utilize this action, exchange the information basis of new and old Media Interface Connector, preferably in software, exchange, thereby make ifIndex can point to new interface medium type information.In a preferred embodiment, the keeper uses SNMP instruction or order to distribute specific interface medium and failure transfer mode, and for example, the collocating medium type object is set to redundant medium 1-and fails automatically and shift and make medium 1 as the principal interface medium.
If the primary media type of configuration that distribute or acquiescence is not to be operated in can accept (to test 708) under the condition of work-mean that it is in the failure jump condition, then malloc failure malloc transfer processing (step 716).Whether interface medium is in the judgement of failure jump condition is preferably finished by link monitoring module 504.
But, if the collocating medium type be under the good operation condition-not under the failure jump condition, then the working media object is set to be included in the same interface medium (step 710) in the collocating medium type.With message, be preferably snmp trap and send to NMS (step 712) then, the interface medium that indication is distributed is work.Instruction module 150 uses for example collocating medium type or the primarily medium parameter (step 714) of media type then, according to medium parameter swap data in communication network.Like this, forwarding unit 100 and other application are used and other software application such as Ethernet driver, SNMP reporting software, just can operate as normal.
The serve as reasons flow chart of high level of the failure transfer processing that failure shift module 512 carries out of Fig. 8 A.This is handled about such situation, wherein, may be under the unacceptable condition with the similar and different working interface medium of principal interface medium-promptly, be in the failure jump condition.In first operation, read and the relevant collocating medium type object of port, to determine failure transfer mode and principal interface medium with failure interface medium.
If the failure transfer mode is redundant, judge in whether can use and work with other interface medium in the port or physical interface (step 814) with the failure shift module 512 that link monitoring module 504 is connected by interface so.If available, then the working media object is made as usable interface medium (step 818).This available interface medium is excited then to substitute the interface medium of failure.In one embodiment, if the principal interface medium is one of usable interface medium, then preferably excite this principal interface medium.
With a message, be preferably trap then, send to NMS 820, indication work at present interface medium, and the principal interface medium of the previous configuration of indication is replaced.Device software 150 is exchange media interface data structure then, and uses the medium parameter (step 822) of current working interface medium.Like this, data communication in the network or exchange are carried out based on these medium parameters.
Yet, if the failure transfer mode is compulsory, it is the "No" branch of decision box 812, if perhaps there is not alternative interface medium to activate, be the "No" branch of decision box 816,, be preferably trap so with alarm, send to NMS, indicate previous working interface medium no longer work now (step 824).Like this, need user intervention (step 826) to select to be used for the new principal interface medium of collocating medium type object.
Fig. 8 B represents the flow chart by the high level of the link monitoring processing of link monitoring module 510 operations.Usually, checking to judge whether current interface medium is in and can accept (step 850) under the condition of work-promptly, is not to be under the failure jump condition 850.If interface medium is under the failure jump condition, then start the failure transfer processing by sending a message to failure shift module 852.
Fig. 9 A represents how supporting dielectric/port redundant or idle in data communication network of embodiments of the invention.In a preferred embodiment, in each port of given time only an interface be movable.As previously mentioned, instruction module 150, switch software for example, medium parameter comes each physical interface or interface medium in each port are managed by making each interface have independently.In this exemplary embodiment of the present invention, device hardware 170 has the port 922B that supports two interface medium 916B and 918B.
This exchange hardware 170 is connected to remote node, such as the multilayer switch 970 of supporting a plurality of media types, comprise first interface, for example, conductivity interface (not shown) such as the twisted-pair feeder that is called copper connecting here, with second interface, for example, be called the light conduction interfaces (not shown) of optical fiber interface here.Copper connecting can reside in the same physical port with optical fiber interface or in two different physical ports.Solid line 996 expression active links, and dotted line 998 expressions are inactive, the redundant link of backup.
Because copper has different medium parameters with the fiber medium type, comprise their physical attribute, behavior and configuration, therefore, if brass chain road 996 disconnects or is under the unacceptable condition of work, exchange opportunity is used fiber medium interface 998 and by exciting this interface to work on so.This redundant environment provides network reliability, and equipment 100 need be according to the other connection in the generation of the Spanning-Tree Protocol tree, and this has prevented loop and redundant path that the redundancy by port or interface medium causes.Each port generally is expressed as a connection that generates in the tree; Like this, the extra Media Interface Connector in the port does not need to generate the extra connection in the tree.Existing generate tree and can be used and do not need to increase other connection.In generating tree, do not need extra connection to be because having only an interface medium simultaneously in a plurality of redundant medium in same port is work yet.
Fig. 9 B and Fig. 9 A are similar, and still, in this data communication network, equipment 170 is connected to two remote node-multilayer switch.Exchange hardware 170 is via first interface, and for example copper connecting 916B is connected to first multilayer switch 980, and via second interface, for example optical fiber interface 918B is connected to second multilayer switch 982.In this example, considering does not need independently redundancy port-use another physical interface in same port, so can reduce the quantity of the port in the exchange hardware 170.Those of ordinary skill in the art will recognize that this has also improved network reliability.
Fig. 9 C is another data communication network embodiment of the present invention, and wherein, exchange hardware 170 is connected to network 1992 via interface 1916B, and is connected to another network 2 inactively via interface 2918B.Like this, for example, this embodiment provides device separately to visit different networks and do not have single failed point for device hardware 170, thereby better network redundancy is provided.Network can comprise local area network (LAN), wide area network and such as provider's network of AOL (TM) and SBC (TM).
Those of ordinary skill in the art will recognize, various switch configuration as example show other advantage that the present invention provides the front not to be described in its several embodiment.For example, consider that movable interface and inactive interface can use same index, so can reduce the quantity of the management interface index in the SNMP environment.In addition, the total interface medium in the particular port can be distributed in same Internet Protocol (IP) address, and this can realize simpler network management system.Another advantage is, can use existing management to use, and for example SNMP and command line interface (CLI) are controlled each interface medium on the same port, and do not need the MIB tissue is carried out a large amount of modifications.In addition, embodiments of the invention have also reduced the demand to extra expensive device, such as being used for redundant extra ethernet port.
Usually, needing the application of change is low level application rather than higher layer applications.So another advantage is that the replacement that no matter whenever takes place from an interface to another interface is shifted or the failure transfer, only depend on the application need change of physical interface/media type usually, and other application need not to change.
The word that being used for of using in this specification described the present invention and each embodiment thereof should be understood to, not only represent its implication of definition usually, and, comprise structure, material or the action of the intended scope that exceeds common definition by defining especially in this manual.Like this, if in this context, element can be understood to include and surpass an implication, then its use in the claims should be understood to be illustrated that institute that book and himself implication support might implication comprehensively.
Under the situation of the spirit and scope that do not break away from the present invention and several embodiment disclosed herein thereof, can make many substitutions and modifications by those of ordinary skill in the art.Therefore, it must be understood that described embodiment only is the purpose of example, rather than limitation of the present invention, scope of the present invention is limited by following claim.
Claims (10)
1. forwarding unit comprises:
One or more physical ports, each physical port comprises a plurality of interface medium, wherein in each described port, only one of described interface medium is worked simultaneously; And
Information database, comprise medium relevant parameter that is used for each described interface medium and the port relevant information that is used for each described port, described port relevant information comprises principal interface dielectric object and working interface dielectric object, described principal interface dielectric object is suitable for being associated with each interface medium of described a plurality of interface medium in each described port, described working interface dielectric object be suitable for each port in described a plurality of interface medium in a movable interface medium be associated.
2. equipment according to claim 1 also comprises:
Instruction module is suitable for the described medium relevant parameter according to described working interface dielectric object, carries out exchanges data in data communication network.
3. equipment according to claim 1, wherein, described port relevant information also comprises failure transfer mode object, indicating described failure transfer mode is automatically or manual; And
Described forwarding unit also comprises:
Instruction module is suitable for:
At one or more failure jump conditions, monitor the described working interface dielectric object of each described port; And
When any one condition exists in described one or more failure jump conditions, according to described failure transfer mode object, carry out the failure transfer processing, so that substitute described working interface dielectric object with the new working interface dielectric object in the same port.
4. equipment according to claim 1 wherein, by interface index, is visited the described port relevant information that is used for described one or more each port of port from described information database.
5. equipment according to claim 1, wherein, by interface index and by described principal interface media type object, visit the medium parameter of each interface medium of a plurality of interface medium described in each port that is used for described one or more ports from described information database.
6. equipment according to claim 3, wherein, described instruction module also is suitable for:
Described medium relevant parameter according to described new working interface medium carries out exchanges data in described data communication network.
One kind in communication network management comprise the method for mixing forwarding unit of one or more physical ports, each physical port comprises a plurality of interface medium, and wherein in each described port, only one of described interface medium is movable simultaneously, said method comprising the steps of:
Be each described port assignment principal interface dielectric object, described principal interface dielectric object is suitable for being associated with each interface medium of described a plurality of interface medium in each described port; And
Be each described port assignment working interface dielectric object, described working interface dielectric object depends on one or more conditions of work, described working interface dielectric object be suitable for each described physical port in described physical interface medium in a movable interface medium be associated.
8. method according to claim 7, further comprising the steps of:
By using interface index and described principal interface dielectric object, from information database access medium parameter, described information database comprises the medium parameter that is used for each described interface medium.
9. method according to claim 8, further comprising the steps of:
According to the described medium parameter of described working interface dielectric object, in described network, carry out the data communication exchange.
10. method according to claim 9, further comprising the steps of:
Be each described port assignment failure transfer mode, it is automatically or manual that failure transfer mode object is indicated described failure transfer mode;
At one or more failure jump conditions, monitor described working interface dielectric object;
When one of described one or more failure jump conditions exist, according to described failure transfer mode, carry out the failure transfer processing, so that substitute described working interface dielectric object with the new working interface dielectric object in the same port; And
According to the described medium parameter of described new working interface dielectric object, in described network, carry out the data communication exchange.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62441904P | 2004-11-01 | 2004-11-01 | |
| US60/624,419 | 2004-11-01 | ||
| US11/018,528 | 2004-12-17 |
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| CN1791016A true CN1791016A (en) | 2006-06-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880583A (en) * | 2012-08-01 | 2013-01-16 | 浪潮(北京)电子信息产业有限公司 | Device and method for configuring dynamic link of multi-way server |
| CN105874746A (en) * | 2013-12-19 | 2016-08-17 | 谷歌公司 | Detecting network devices |
-
2005
- 2005-11-01 CN CN 200510117132 patent/CN1791016A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880583A (en) * | 2012-08-01 | 2013-01-16 | 浪潮(北京)电子信息产业有限公司 | Device and method for configuring dynamic link of multi-way server |
| WO2014019346A1 (en) * | 2012-08-01 | 2014-02-06 | 浪潮(北京)电子信息产业有限公司 | Dynamic link configuration device and method for multipath server |
| CN102880583B (en) * | 2012-08-01 | 2015-03-11 | 浪潮(北京)电子信息产业有限公司 | Device and method for configuring dynamic link of multi-way server |
| CN105874746A (en) * | 2013-12-19 | 2016-08-17 | 谷歌公司 | Detecting network devices |
| CN105874746B (en) * | 2013-12-19 | 2019-06-04 | 谷歌有限责任公司 | Detect the network equipment |
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