Router equipment, main card thereof and method for adapting main card to interface card
An interface card and equipment technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of high cost, increase the total cost of routing equipment, data bandwidth cannot meet bandwidth requirements, etc., and achieve the effect of reducing costs.
Active Publication Date: 2015-07-22
XINHUASAN INFORMATION TECH CO LTD
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Problems solved by technology
[0020] 1. Regardless of the interface card, the main card and the interface card exchange data through a parallel data bus, such as the SPI protocol bus. However, with the rapid development of communication electronic technology, the speed of data exchange is also getting faster and faster. For example, the data bandwidth provided by parallel data buses such as the SPI protocol bus can no longer meet the higher bandwidth requirements;
[0021] 2. The cost of the Ethernet MAC controller and Ethernet PHY chip of the Ethernet interface card is relatively high, especially the Ethernet MAC controller. Therefore, for Ethernet interface cards with many specifications, each specification requires Set a corresponding interface card, which will greatly increase the total cost of routing equipment
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[0090] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0091] figure 2 It is a schematic diagram of a routing device using separate main cards and interface cards in an embodiment of the present invention. Such as figure 2 As shown, the routing device in the embodiment of the present invention includes a main card and an interface card, and:
[0092] Data transmission is performed between the main card and the interface card through a serial differential data bus instead of a parallel data bus;
[0093] A control bus is used between the main card and the interface card to realize the control of the main card to the interface card;
[0094] A management bus is also used between the main card and the interface card to realize the management of the interface card by the main card.
[0095] Next, first of...
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The invention provides a router equipment, a main card thereof and a method for adapting the main card to an interface card. A data bus for the interactive data of the main card and the interface card is set into a serial differential data bus, and a processor can support any serial interface protocol of the interface card and transmit data on the serial differential data bus in a bandwidth meeting the requirement of the interface card, so that the bandwidth requirement of various interface cards can be met through the flexible configuration of the processor. Furthermore, for the Ethernet interface card, the function of an Ethernet MAC (Media Access Control) controller and the function of a physical layer can be integrated in the processor, so that the Ethernet interface card does not need to be provided with the Ethernet MAC controller, even an Ethernet PHY (Physical Layer) chip, and the cost of the Ethernet interface card can be accordingly reduced.
Description
technical field [0001] The invention relates to the interface technology of routing equipment, in particular to a routing equipment, a main card of the routing equipment, and a method for adapting the main card of the routing equipment to an interface card. Background technique [0002] The routing device works on the third layer of the OSI (Open System Interconnection, Open System Interconnection) protocol model, that is, the routing device belongs to the packet switching device of the network layer. [0003] Common routing devices can support multiple interface types, including: [0004] Various SDH / SONET (Synchronous Digital Hierarchy / Synchronous Optical Network, synchronous digital series / synchronous optical network) interfaces, such as POS (Packet over SDH / SONET, IP data packets carried on SDH / SONET) interface, CPOS (Channelized POS, channel POS) interface, E1 / T1 interface, E3 / T3 interface, etc.; [0005] ATM (Asynchronous Transfer Mode, asynchronous transfer mode) in...
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IPC IPC(8): H04L12/70H04L29/10H04L45/60
Inventor 杨武
Owner XINHUASAN INFORMATION TECH CO LTD