CN103368836A - Digital microwave device and network-management data routing method - Google Patents
Digital microwave device and network-management data routing method Download PDFInfo
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Abstract
The invention discloses a digital microwave device including a central processing unit (CPU) in charge of generating network-management data of a network element which the CPU is in, searching a route in a data package forwarding process and sending and receiving the network management data through an interface between the CPU and a switching chip; the switching chip which is in charge of data package forwarding and provided with a three-layer routing and two-layer forwarding function; a modem in charge of data package encoding and decoding, sending the data packages to an intermediate-frequency section for transmission and parsing the data received by the intermediate-frequency section; and a route synchronization module in charge of synchronizing route information and ARP protocol information to the switching chip. The invention also discloses a network-management data forwarding method applied to the above-mentioned digital microwave device. Through adoption of the technical scheme of the invention, the single three-layer interface is arranged and a single IP address is used and the three-layer routing function is realized so that IP addresses are saved and networking flexibility of the microwave network management is improved.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of digital microwave equipment and network management data method for routing thereof.
Background technology
Microwave communication is as the forerunner of Modern wireless communication, plays a part very importantly in the communications field always, as a kind of fast means of communication, playing the part of indispensable role in the mobile network.No matter be at mobile access network, or in mobile metropolitan transmission network network and core network, can see the figure of microwave equipment everywhere, especially in emergency communication, microwave is irreplaceable means especially.The monitoring of microwave network element and management are also more and more become the focus of concern, i.e. usually said DCN (Data Connection Network, network management data) passage.
Carrying out Information Communication by ground visibility between the microwave website, is a kind of transmission of point-to-point.At present, all by IP address management microwave network element, special network management interface is arranged on the microwave network element, network management data uses the DCN channel transfer, and protocol transmission is ICP/IP protocol, adopts the NM server centralized management.Single network element is a data source device, also is a data forwarding unit, and it can transmit the network management data of oneself and the data of successor devices by network management interface to upper level.NM server just can be managed all network elements in the whole network as long as connect the network element that is in the superiors.The problem that must consider when therefore, the webmaster mouth connected mode of network element and packet routing mode are the microwave equipment design.The present invention has proposed DCN passage implementation method mainly for this problem.
At present, network management data all is to use ICP/IP protocol to transmit data, and the versatility of ICP/IP protocol is good, is convenient to build network, also maintains easily.For single network element, when the transmission network management data, mainly contain dual mode: first kind of way is two layers of exchange+default gateway+static routing.In this manner, network element all is configured to two layers of exchanged form, and each network element only has three layer interfaces, IP address of this interface configuration, and network management data is by this interface transmitting-receiving; In addition, all network elements need be divided in same subnet, use the IP address in the phase same network segment.When the equipment in this subnet need to be accessed the equipment of other subnet, adopt two kinds of approach, use the equipment of static routing access next stage, use the equipment of default gateway access upper level, that is to say if the successor devices of certain equipment is present in a plurality of network segments, just need in this equipment, add many static routing.The shortcoming of this mode is that network element does not have routing function, and the static routing of configuration and default gateway can only be for this network element network management data routes, the network management data of can not the route miscellaneous equipment sending; Next is that maintenance management comparatively bothers, and need to add static routing and default gateway in each equipment; Again, when network changes, need to remodify static routing and default gateway.Advantage is that when network configuration was stablized, only or else a needs static routing of configuration and default gateway just needed maintenance and management afterwards.The second way is dynamic routing, moves a dynamic routing protocol on each equipment, and each equipment is equivalent to a router, and a plurality of three layer interfaces are arranged on the equipment, accesses the different network segments.After opening the dynamic routing function, equipment can automatic learning and renewal route.The advantage of this mode is that maintenance management is convenient, does not need configuring static route and default gateway etc., when the network result changes, does not also need to carry out any retouching operation, and equipment can upgrade routing table automatically.Shortcoming is that the efficient of route learning and renewal depends on Routing Protocol and the network size of use, and has increased the complexity of equipment.
Summary of the invention
The technical problem to be solved in the present invention provides the digital microwave equipment that the simple and network element of a kind of equipment has routing function, and a kind of network management data method for routing of this digital microwave equipment, this gateway data routing method can be saved the IP address, and has improved microwave webmaster networking flexibility degree.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of digital microwave equipment, comprising:
Central processor CPU, the responsible network management data that produces this network element is searched route in the package forward process, by the transmitting-receiving of the interface between CPU and exchange chip SWITCH network management data;
Exchange chip SWITCH is responsible for the forwarding of packet, has three layers of route and two layers of forwarding capability;
Modem is responsible for the packet encoding and decoding are delivered to intermediate-frequency section and sent, and resolves the data that intermediate-frequency section receives;
Route synchronization module SYNRC is responsible for Dynamic Route (dynamic routing), ARP (Address Request Protocol, address resolution protocol) that CPU is generated and Static Route (static routing) information synchronization in Switch.
Further, the interface between described CPU and the exchange chip SWITCH is three layer interfaces, is used for transmitting-receiving IP message.
Further, three layer interfaces are only arranged between described CPU and the exchange chip SWITCH, this three layer interface has only configured an IP address.
Further, described exchange chip is responsible for the forwarding of packet, specifically comprises: send to CPU from the MODEM receive data, and the data that CPU is produced send to MODEM.
Further, Dynamic Route information is to lean on upper OSPF (Open Shortest Path First, the ospf) protocol generation that moves of CPU; Static Route information is by user's manual configuration; ARP information is to calculate the ARP protocol generation of operation by CPU.
On the other hand, the present invention also provides a kind of network management data method for routing, is applied to digital microwave equipment of the present invention, and the method comprises:
Routing iinformation and ARP information synchronization process between CPU and the SWITCH;
Face the hop-information acquisition process.
Wherein, routing iinformation and ARP information synchronization process comprise between described CPU and the SWITCH:
When the dynamic routing of CPU and static routing information changed, described route synchronization module upgraded dynamic routing and the static routing information of exchange chip synchronously; If Destination MAC (Media Access Control) address corresponding to route can not find, initiatively trigger the ARP learning process, and the ARP information synchronization that will learn is to exchange chip in ARP information;
When facing the ARP information change of jumping network element, described synchronous update module also arrives CPU operating system and exchange chip with this ARP information updating.Among the present invention, the routing table in the exchange chip is made of three tables, as index, so will do parsing according to the list structure of exchange chip when route synchronization module synchronization of routing information and ARP information by target ip address and mask.
Further, the routing iinformation that writes exchange chip has aging function, and the routing table in the exchange chip does not start the automatic aging function, and is aging by described synchronous update module control, exchange chip provides the hit field of a L3 list item, is used as aging reference.
Further, for the default gateway of user add, described synchronous update module only is synchronized in the CPU operating system, and is asynchronous to exchange chip; After reaching exchange chip, packet can not find route, directly send the product protocol stack to process, if purpose IP and this digital microwave equipment are at the same network segment, then initiate the APR learning process, learn after MAC Address from panel mouth (Front Port), again encapsulate forwarded, and the ARP information synchronization that will learn is to exchange chip; If purpose IP and this digital microwave equipment be not at the same network segment, then transmit according to user configured gateway address: if gateway is to face jumping equipment, directly transmit after the encapsulation, if the gateway IP digital microwave equipment IP that is this or with the IP of this digital microwave equipment at the same network segment, then initiate the ARP learning process, encapsulate forwarded again after acquiring does not acquire then abandoning.
Further, a local routing is arranged in the CPU operating system routing table, namely arrives the route of this digital microwave equipment IP place network segment, this local routing between configuration CPU and SWITCH interface IP address and mask in add in the operating system routing table.
Further, the described hop-information acquisition process that faces comprises:
After A, digital microwave equipment started, CPU set up contact by MODEM and opposite equip.;
B, successfully connect by three-way handshake after, obtain the ARP information (IP, MAC) of opposite equip. from facing hop-information;
C, face and jump network element and keep connecting by heartbeat message always, and the renewal of facing at any time hop-information.
Beneficial effect of the present invention is as follows:
Digital microwave equipment of the present invention, each network element only have three layer interfaces, have configured an IP address at this interface, and can realize three layers of routing function, i.e. routing table is upgraded in study, and carries out gateway data routing forwarding.And ordinary router has a plurality of three layer interfaces, configures different IP addresses on each interface, and accesses the different network segments, to reach the function of route.The inventive method does not need to configure a plurality of three layer interfaces and IP address, use single ip address, can realize equally three layers of routing function, and can support simultaneously dynamic routing and static routing, wherein key technology has been to use the hop-information that faces of microwave equipment to obtain the ARP information of facing jumping equipment.Compared with prior art, the inventive method can be saved the IP address, and has improved microwave webmaster networking flexibility degree.
Description of drawings
Fig. 1 is the digital microwave equipment internal structure schematic diagram of the embodiment of the invention;
Fig. 2 is route synchronization module functional schematic of the present invention;
Fig. 3 is the digital microwave equipment three layer interface schematic diagrames of the embodiment of the invention;
Fig. 4 is the network management interface schematic diagram that the digital microwave equipment of the embodiment of the invention externally presents;
Fig. 5 is the embodiment of the invention 1 described network management data method for routing schematic diagram;
Fig. 6 (A) is that packet enters schematic diagram from the broadcasting mouth in the embodiment of the invention 2 described network management data method for routing;
Fig. 6 (B) is that packet enters schematic diagram in the embodiment of the invention 2 described network management data method for routing from eating dishes without rice or wine;
Fig. 7 is the embodiment of the invention 3 described network management data method for routing schematic diagrames;
Fig. 8 is the embodiment of the invention 4 described network management data method for routing schematic diagrames;
Fig. 9 is the embodiment of the invention 5 described network management data method for routing schematic diagrames.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details.Should be understood that, specific embodiment described herein only in order to explain the present invention, does not limit the present invention.
At first digital microwave equipment of the present invention is described in further details.
Fig. 1 is the digital microwave equipment internal structure schematic diagram of the embodiment of the invention, and as shown in Figure 1, digital microwave equipment of the present invention comprises: central processor CPU 102, exchange chip SWITCH103, modem 104 and route synchronization module SYNRC105.
Among Fig. 1, the line between CPU102 and the MODEM104 represents IDU101 internal communication passage, and the line between SWITCH103 and the MODEM104 represents network management data transmission path among the IDU101.
Because digital microwave equipment is paired the transmission of data, so corresponding in addition another identical equipment, two equipment consist of one and jump MTL microwave transmission links.
In the network management data course of conveying, central processor CPU 102 is responsible for producing the network management data of this network element, searches route in the package forward process, by the transmitting-receiving of the interface between CPU102 and SWITCH103 network management data.
Exchange chip SWITCH103 is responsible for the forwarding of packet, have three layers of route and two layers of forwarding capability, major function comprises from the MODEM104 receive data and sends to CPU102, and the data that CPU102 is produced send to MODEM104, and SWITCH103 can connect plural MODEM104.
MODEM104 is responsible for the packet encoding and decoding are delivered to intermediate-frequency section and sent, and perhaps resolves the data that intermediate-frequency section receives.
As shown in Figure 2, route synchronization module SYNRC105 is responsible for Dynamic Route, ARP that CPU102 is generated and Static Route information synchronization in SWITCH103.Wherein, Dynamic Route Information generation is the ospf protocol by the upper operation of CPU102, and the generation of Static Route information is by user's manual configuration, and the generation of ARP information is the ARP agreement of calculating operation by CPU102.
Need to prove as shown in Figure 3, only have an interface interface between CPU102 and the SWITCH103, this interface configuration becomes three layer interfaces, namely can receive and dispatch the IP message.
As shown in Figure 4, the microwave network element has externally presented two kinds of interfaces, panel mouth and eat dishes without rice or wine (Radio Port), the panel mouth belongs to the broadcast type port, can access in the broadcast type network, eating dishes without rice or wine is the point-to-point type, can access the point-to-point type network.
Below in conjunction with Fig. 5-Fig. 9, and corresponding five embodiment are described in further details network management data method for routing of the present invention:
Embodiment 1
As shown in Figure 5, among this embodiment, packet enters exchange chip from the digital microwave equipment outside, and destination-mac address is not this digital microwave equipment.
This bag is business datum, does not need to process through this digital microwave equipment, and destination address is not the MAC Address of this digital microwave equipment, directly carries out two layers of forwarding, and data can not carried out three layers of routing procedure of SWITCH, can not be dealt into CPU and get on.
Embodiment 2
As shown in Figure 6, among this embodiment, packet enters exchange chip from the digital microwave equipment outside, and destination-mac address is this digital microwave equipment, and target ip address is not this digital microwave equipment.
These bags will pass through this digital microwave equipment route, process in two kinds of situation: a kind of is that packet enters from the broadcasting mouth, shown in Fig. 6 (A); A kind of is that packet enters from eating dishes without rice or wine, shown in Fig. 6 (B).
1, for the first situation, packet enters from the broadcasting mouth:
The packet of access arrangement was initiated first the ARP request before sending; If the address of request exists, MAC Address corresponding to purpose IP that learning equipment carries in the packet;
2, for the second situation, packet enters from eating dishes without rice or wine:
This moment, SWITCH did not upward have study to the MAC Address of target device, and SWITCH to CPU, initiatively initiates the ARP request with Packet Generation, then with the target MAC (Media Access Control) address of the MAC Address of learning to arrive as raw data packets, forwarded afterwards.
And the ARP information synchronization that newly study is arrived arrives SWITCH, just need not deliver to CPU when having afterwards same packet to enter SWITCH again again and process.
Embodiment 3
As shown in Figure 7, in the present embodiment, packet enters exchange chip from device external, and destination-mac address is the MAC Address of this equipment, and the IP address is this equipment.
This bag is network management data, and Destination MAC and IP address all are this equipment, so SWITCH processes Packet Generation to this equipment CPU.Message carries out first three layers of route querying after reaching SWITCH, and destination interface is for connecting the port of CPU;
SWITCH is dealt into CPU with packet and carries out this locality termination.
Embodiment 4
As shown in Figure 8, in the present embodiment, packet sends from the CPU of this equipment, mails to connection device on the panel mouth.Then the inventive method comprises following processing:
1, the bag that sends out from CPU is the network management data bag, after processing through the ICP/IP protocol stack of the upper operation of CPU, is packaged into mac frame, then is dealt into SWITCH;
2, exchange chip carries out two layers of forwarding according to target MAC (Media Access Control) address;
3, the panel mouth is broadcasting mouthful, is connected to the equipment of panel mouth and this equipment in the same network segment, does not therefore need routing procedure, only needs the ARP search procedure, and CPU is by sending the MAC Address of ARP acquisition request Target IP.
Embodiment 5
As shown in Figure 9, in the present embodiment, packet sends from the CPU of this equipment, mails to and faces jumping equipment.Then the inventive method comprises following processing:
1, faces jumping equipment and this equipment in different segment, therefore at first search three layers of route, find the IP address of next hop address;
2, CPU searches M A C address corresponding to purpose IP by ARP table, is dealt into SWITCH after being packaged into two layers of frame;
3, SWITCH carries out two layers of forwarding according to target MAC (Media Access Control) address.
Although be the example purpose, the preferred embodiments of the present invention are disclosed, it also is possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (10)
1. a digital microwave equipment is characterized in that, comprising:
Central processor CPU, the responsible network management data that produces this network element is searched route in the package forward process, by the transmitting-receiving of the interface between CPU and exchange chip SWITCH network management data;
Exchange chip SWITCH is responsible for the forwarding of packet, has three layers of route and two layers of forwarding capability;
Modem is responsible for the packet encoding and decoding are delivered to intermediate-frequency section and sent, and resolves the data that intermediate-frequency section receives;
Route synchronization module SYNRC, dynamic routing Dynamic Route, ARP and the static routing Static Route information synchronization being responsible for CPU is generated are in Switch.
2. digital microwave equipment as claimed in claim 1 is characterized in that, the interface between described CPU and the exchange chip SWITCH is three layer interfaces, is used for transmitting-receiving IP message.
3. digital microwave equipment as claimed in claim 2 is characterized in that, three layer interfaces are only arranged between described CPU and the exchange chip SWITCH, and this three layer interface has only configured an IP address.
4. such as claim 1 or 2 or 3 described digital microwave equipments, it is characterized in that, described exchange chip is responsible for the forwarding of packet, specifically comprises: send to CPU from the MODEM receive data, and the data that CPU is produced send to MODEM.
5. such as claim 1 or 2 or 3 described digital microwave equipments, it is characterized in that, Dynamic Route information is to generate by the upper ospf ospf protocol of moving of CPU; Static Route information is by user's manual configuration; ARP information is to calculate the ARP protocol generation of operation by CPU.
6. a network management data method for routing is applied to digital microwave equipment as claimed in claim 1, it is characterized in that, comprising:
Routing iinformation and ARP information synchronization process between CPU and the SWITCH; And face the hop-information acquisition process;
Wherein, routing iinformation and ARP information synchronization process comprise between described CPU and the SWITCH:
When the dynamic routing of CPU and static routing information changed, described route synchronization module upgraded dynamic routing and the static routing information of exchange chip synchronously; If destination-mac address corresponding to route can not find, initiatively trigger the ARP learning process, and the ARP information synchronization that will learn is to exchange chip in ARP information;
When facing the ARP information change of jumping network element, described synchronous update module also arrives CPU operating system and exchange chip with this ARP information updating.
7. network management data method for routing as claimed in claim 6, it is characterized in that, the routing iinformation that writes exchange chip has aging function, and is aging by described synchronous update module control, exchange chip provides the hit field of a L3 list item, is used as aging reference.
8. network management data method for routing as claimed in claim 6 is characterized in that, for the default gateway of user add, described synchronous update module only is synchronized in the CPU operating system, and is asynchronous to exchange chip; After reaching exchange chip, packet can not find route, directly send the product protocol stack to process, if purpose IP and this digital microwave equipment are at the same network segment, then initiate the APR learning process, after learning MAC Address from panel mouth Front Port, again encapsulate forwarded, and the ARP information synchronization that will learn is to exchange chip; If purpose IP and this digital microwave equipment be not at the same network segment, then transmit according to user configured gateway address: if gateway is to face jumping equipment, directly transmit after the encapsulation, if the gateway IP digital microwave equipment IP that is this or with the IP of this digital microwave equipment at the same network segment, then initiate the ARP learning process, encapsulate forwarded again after acquiring does not acquire then abandoning.
9. such as claim 6 or 7 or 8 described network management data method for routing, it is characterized in that, a local routing is arranged in the CPU operating system routing table, this local routing between configuration CPU and SWITCH interface IP address and mask in add in the operating system routing table.
10. such as claim 6 or 7 or 8 described network management data method for routing, it is characterized in that, the described hop-information acquisition process that faces comprises:
After A, digital microwave equipment started, CPU set up contact by MODEM and opposite equip.;
B, successfully connect by three-way handshake after, obtain the ARP information of opposite equip. from facing hop-information;
C, face and jump network element and keep connecting by heartbeat message always, and the renewal of facing at any time hop-information.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109446677A (en) * | 2018-11-02 | 2019-03-08 | 南京贝伦思网络科技股份有限公司 | General-purpose platform and its building method based on network chip |
| CN111371913A (en) * | 2020-02-21 | 2020-07-03 | 深圳震有科技股份有限公司 | Method for acquiring media IP MAC address and intelligent terminal |
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| US20080298799A1 (en) * | 2007-06-01 | 2008-12-04 | Masatoshi Takihiro | Gateway device, optical network terminal, and passive optical network system |
| CN101656670A (en) * | 2008-08-14 | 2010-02-24 | 丛林网络公司 | Routing device having integrated MPLS-aware firewall |
| CN101848186A (en) * | 2009-03-27 | 2010-09-29 | 西安飞讯光电有限公司 | Three-layer plastic optical fiber Ethernet switch |
| CN102148766A (en) * | 2011-05-11 | 2011-08-10 | 烽火通信科技股份有限公司 | Method for service interworking in PON (passive optical network) under three-layer function networking |
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| US20080298799A1 (en) * | 2007-06-01 | 2008-12-04 | Masatoshi Takihiro | Gateway device, optical network terminal, and passive optical network system |
| CN101656670A (en) * | 2008-08-14 | 2010-02-24 | 丛林网络公司 | Routing device having integrated MPLS-aware firewall |
| CN101848186A (en) * | 2009-03-27 | 2010-09-29 | 西安飞讯光电有限公司 | Three-layer plastic optical fiber Ethernet switch |
| CN102148766A (en) * | 2011-05-11 | 2011-08-10 | 烽火通信科技股份有限公司 | Method for service interworking in PON (passive optical network) under three-layer function networking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109446677A (en) * | 2018-11-02 | 2019-03-08 | 南京贝伦思网络科技股份有限公司 | General-purpose platform and its building method based on network chip |
| CN111371913A (en) * | 2020-02-21 | 2020-07-03 | 深圳震有科技股份有限公司 | Method for acquiring media IP MAC address and intelligent terminal |
| CN111371913B (en) * | 2020-02-21 | 2022-03-08 | 深圳震有科技股份有限公司 | Method for acquiring media IP MAC address and intelligent terminal |
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