Method and system for expanding the exchange capacity of exchange service chip

A technology for switching services and switching capacity, which is applied in the field of expanding the switching capacity of switching business chips, and can solve the problems of switching business chip loss of switching capacity, etc., and achieve the effect of increasing port density and switching capacity

Inactive Publication Date: 2016-07-13
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the switching service chip can meet the business processing capability of 10G, if GE is implemented in the above way, the switching service chip can actually only handle 4G services, that is, the switching service chip loses 6G switching capacity

Method used

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  • Method and system for expanding the exchange capacity of exchange service chip
  • Method and system for expanding the exchange capacity of exchange service chip
  • Method and system for expanding the exchange capacity of exchange service chip

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] The method for expanding the switching capacity of the switching service chip in the embodiment of the present invention is applied to the service board and the switching service chip supporting the virtual port function. see image 3 As shown, the service board in the present embodiment is FPGA (Field Programmable Gate Array, Field Programmable Logic Gate Array), and the external interface of FPGA is GE interface or FE (FastEthernet, Fast Ethernet, also claims Fast Ethernet) interface, and FPGA The interconnection interface with the switching service chip is the XAUI interface or GE interface; the direction in which the FPGA sends messages to the switching service chip is the uplink direction, and the direction in which the switching service chip sends messages to the FPGA is the downlink direction. On this basis, the method for expan...

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Abstract

The invention discloses a method and system for expanding the exchange capacity of an exchange service chip, and relates to the exchange service chip expansion field of packet switching equipment and digital channelization equipment. The method includes the steps: in the uplink direction, a service board card increases a corresponding VLAN TAG (Virtual Local Area Network TAG) in a message for each external interface, and then transmits the VLAN TAG to an exchange service chip; the exchange service chip identifies the corresponding external interface according to the VLAN TAG of the message; and in the downlink direction, the exchange service chip increases a VLAN TAG, in the message, corresponding to a transmission target external interface, and then transmits the VLAN TAG to the service board card; the service board card identifies the target external interface of the current message. The method and system for expanding the exchange capacity of an exchange service chip can realize that one XAUI (X Ethernet Attachment Unit Interface) is expanded into N external interface for the service board card, so that the port density for the exchange service chip is improved and the exchange capacity of the exchange service chip is expanded.

Description

technical field [0001] The invention relates to the field of extension of switching service chips of packet switching equipment and data communication equipment, in particular to a method and system for expanding the switching capacity of switching service chips. Background technique [0002] COE (ChannelizationOverEthernet, channelized Ethernet) implements Subport (subport, virtual port of the switching service chip, not a real physical port) through VLANTAG, and the switching service chip recognizes the physical port of the external panel through Subport and performs message processing a technique. [0003] see figure 1 As shown, in the COE, the current XAUI interface (XEthernetAttachmentUnitInterface, 10Gbps Ethernet connection unit interface) of the packet switching service chip implements the GE (GigabitEthernet, Gigabit Ethernet) interface in the following way: the four pairs of SERDES of the XAUI interface (the low The working rate of the interface whose rate is con...

Claims

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Application Information

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IPC IPC(8): H04L12/935H04L12/931H04L12/46H04L49/111
CPCH04L12/4645H04L12/4666H04L49/352H04L49/354H04L49/45
Inventor 熊俊
Owner FENGHUO COMM SCI & TECH CO LTD
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