CN103595606A - Switching-type remote network bridge - Google Patents
Switching-type remote network bridge Download PDFInfo
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- CN103595606A CN103595606A CN201210286130.7A CN201210286130A CN103595606A CN 103595606 A CN103595606 A CN 103595606A CN 201210286130 A CN201210286130 A CN 201210286130A CN 103595606 A CN103595606 A CN 103595606A
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Abstract
The invention discloses a switching-type remote network bridge comprising a conversion chip, an Ethernet PHY module and an E1 interface module. The conversion chip is provided with an HDLC interface and an MII interface. The E1 interface module is connected to the HDLC interface of the conversion chip. The Ethernet PHY module is connected to the MII interface of the Ethernet. The conversion chip is also connected to a synchronous dynamic random access memory and a clock module. The beneficial effects of witching-type remote network bridge of the present invention are that: the switching-type remote network bridge employs the xBridge2.0 chip to realize data exchange between local area networks and wide area networks; since, the data transmission rates of the local area networks and the wide area networks are different, the SDRAM is adopted to carry out buffering; and in using the switching-type remote network bridge, a pair of switching-type remote network bridges should be used in a cooperative mode, and two local area networks and the wide area networks which are far away from each other should all be provided with the remote bridges therebetween. Transparent interaction of data between the two local area networks which are far away from each other is realized through the wide area networks.
Description
Technical field
The present invention relates to a kind of bridge, particularly relate to a kind of switch type remote bridge.
Background technology
Bridge (Bridge) is as a clever repeater.Repeater receives signal from a network cable, amplifies them, is sent into next cable.Comparatively speaking, bridge is sharper to the information handing down from the outpost of the tax office.Bridge is a kind of technology that frame is forwarded, and according to MAC blockette, can isolate collision.Bridge couples together a plurality of network segments of network in data link layer.
Bridge couples together two similar networks, and the circulation of network data is managed.It works in data link layer, distance or scope that not only can extended network, and performance, reliability and the fail safe that can improve network.After network 1 is connected by bridge with network 2, bridge receives the packet that network 1 sends, check the address in packet, if address belongs to network 1, it is just abandoned, on the contrary, if the address of network 2, it just continues to send to network 2. can utilize bridge isolation information like this, and same network number is divided into a plurality of network segments (belonging to same network number), isolate the safe network segment, prevent the user's unauthorized access in other network segments.Due to the segmentation of network, each network segment relatively independent (belonging to same network number), the fault of a network segment can not have influence on the operation of another network segment.
Existing bridge is generally merely able to for providing connection between the LAN segment in a ground, and for positional distance not effect of two local area network (LAN)s excessively far away, along with the develop rapidly of computer network, increasing enterprises is all set up the local area network (LAN) of oneself.Dui Yige small business can adopt the technology of Internet and product to set up private corporate network (being Intranet) easily on the local area network (LAN) of oneself.And for a large-scale company or a system, due to its branch company and affiliated institutions' geographical distribution, do not concentrate, the connection between each local area network (LAN) of whole company or system just becomes key issue.
Summary of the invention
Object of the present invention is to overcome the deficiency of present technology, and a kind of switch type remote bridge is provided, and solves existing bridge the connection between same ground local net network can only be provided, the defect that aobvious range of application is narrower.
The present invention is achieved through the following technical solutions: switch type remote bridge, comprise conversion chip, ethernet PHY module, E1 interface module, on described conversion chip, be provided with HDLC interface and MII interface, described E1 interface module is connected on the HDLC interface of conversion chip, ethernet PHY module is all connected on the MII interface of conversion chip, is also connected with a synchronous DRAM and clock module on conversion chip.
On described conversion chip, be also provided with reseting module.
Described conversion chip adopts xBridge2.0 chip.
Described E1 interface module adopts XRT82D20 chip.
Described ethernet PHY module adopts AC101-TF chip.
The invention has the beneficial effects as follows: this device adopts xBridge2.0 chip to realize the exchanges data between local area network (LAN) and wide area network, because the message transmission rate of local area network (LAN) and wide area network is different, has adopted a SDRAM to cushion; While adopting this device to use, be to need a pair of being used in conjunction with, a remote bridge be all set between the local area network (LAN) of two wide aparts and wide area network, the local area network (LAN) of two wide aparts by wide area network, realize between the transparent interaction of data.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
[embodiment]
As shown in Figure 1, switch type remote bridge, comprise conversion chip, ethernet PHY module, E1 interface module, on described conversion chip, be provided with HDLC interface and MII interface, described E1 interface module is connected on the HDLC interface of conversion chip, ethernet PHY module is all connected on the MII interface of conversion chip, is also connected with a synchronous DRAM and clock module on conversion chip.
On described conversion chip, be also provided with reseting module, reseting module is MAX705 chip, and conversion chip is resetted, and generally when conversion chip work gets muddled, uses, can fast processing fault.
Conversion chip of the present invention adopts xBridge2.0 chip, and this chip can be realized the connection between local area network (LAN) and wide area network; Ethernet PHY module adopts AC101-TF chip, connects outside Ethernet, completes transmission and the data processing of Ethernet data bag; E1 interface module adopts XRT82D20 chip, connects outside wide area network, and the signal of wide area network is carried out to line coding, decoding, and the function that completes jitter suppression.
When the present invention uses, need pairing to use, between two wide apart local area network (LAN)s and wide area network, this device is all set, can realize easily the transparent interaction of data between two wide apart local area network (LAN)s.The data transmission bauds of local area network (LAN) and wide area network is inconsistent, and the data transmission bauds of local area network (LAN) will be far above wide area network, and this device arranges a synchronous DRAM, the buffering being used for to data.
Claims (5)
1. switch type remote bridge, it is characterized in that: comprise conversion chip, ethernet PHY module, E1 interface module, on described conversion chip, be provided with HDLC interface and MII interface, described E1 interface module is connected on the HDLC interface of conversion chip, ethernet PHY module is all connected on the MII interface of conversion chip, is also connected with a synchronous DRAM and clock module on conversion chip.
2. switch type remote bridge according to claim 1, is characterized in that: on described conversion chip, be also provided with reseting module.
3. switch type remote bridge according to claim 1 and 2, is characterized in that: described conversion chip adopts xBridge2.0 chip.
4. switch type remote bridge according to claim 3, is characterized in that: described E1 interface module adopts XRT82D20 chip.
5. switch type remote bridge according to claim 4, is characterized in that: described ethernet PHY module adopts AC101-TF chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286130.7A CN103595606A (en) | 2012-08-13 | 2012-08-13 | Switching-type remote network bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286130.7A CN103595606A (en) | 2012-08-13 | 2012-08-13 | Switching-type remote network bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103595606A true CN103595606A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210286130.7A Pending CN103595606A (en) | 2012-08-13 | 2012-08-13 | Switching-type remote network bridge |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201403101Y (en) * | 2009-03-19 | 2010-02-10 | 天津禄普电子科技有限公司 | E1/Ethernet data conversion unit |
| CN201608727U (en) * | 2010-03-23 | 2010-10-13 | 南京普天网络有限公司 | Converging type conversion device capable of dynamically distributing E1 ways for 16-way network bridge business |
| CN202035013U (en) * | 2011-05-19 | 2011-11-09 | 厦门福信光电集成有限公司 | Multiple E1-Ethernet protocol converter based on GFP |
| CN202111737U (en) * | 2011-07-05 | 2012-01-11 | 厦门福信光电集成有限公司 | Network management enhanced E1/ETH protocol converter |
| CN202696642U (en) * | 2012-08-13 | 2013-01-23 | 成都思迈科技发展有限责任公司 | Switching type remote bridge |
-
2012
- 2012-08-13 CN CN201210286130.7A patent/CN103595606A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201403101Y (en) * | 2009-03-19 | 2010-02-10 | 天津禄普电子科技有限公司 | E1/Ethernet data conversion unit |
| CN201608727U (en) * | 2010-03-23 | 2010-10-13 | 南京普天网络有限公司 | Converging type conversion device capable of dynamically distributing E1 ways for 16-way network bridge business |
| CN202035013U (en) * | 2011-05-19 | 2011-11-09 | 厦门福信光电集成有限公司 | Multiple E1-Ethernet protocol converter based on GFP |
| CN202111737U (en) * | 2011-07-05 | 2012-01-11 | 厦门福信光电集成有限公司 | Network management enhanced E1/ETH protocol converter |
| CN202696642U (en) * | 2012-08-13 | 2013-01-23 | 成都思迈科技发展有限责任公司 | Switching type remote bridge |
Non-Patent Citations (1)
| Title |
|---|
| 苏小柳: "基于xBridge 2.0的远程网桥的设计与实现", 《电子设计工程》 * |
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Application publication date: 20140219 |