Todays high performance core routers always use input queue based crossbar switches.

交换开关是高性能路由器的核心。

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Pairs of core routers are used to channel traffic to the base sites, both for load sharing and so the site link cannot be lost by the failure of a single router.

成对的核心路由器则将资料导向基地站。两者都是用来装载信息的，因此站点链接不会因为某一路由器的失常而丢失。

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Analysis reveals that it is a fair algorithm and is easy to be implemented and can be implemented in the design of high density interface card design in core routers.

理论分析和实际应用表明，该算法具有良好的公平性，并且具有实现简单的优点，可以很方便地用于核心路由器高密度线路接口卡设计中。

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Alcatel Lucent may find it challenging initially to find customers for its core routers considering the strong grip that Cisco and Juniper have over the industry.

FORBES: Juniper Concerned As Alcatel Lucent Targets Core Router Market

Juniper has about 25% market share in core routers.

FORBES: Juniper Should See Jump In Router Share

Although enterprise routers remain the single largest profit driver for Cisco, we note that the service provider router segment (including both edge and core routers) does generate a combined profitability beyond the individual contribution from the enterprise segment.

FORBES: Enterprise Routers Are Cisco's Engine