Ciscothis week put all speculation and anticipation to rest by unveiling the core router it's been developing for more than two years: the CRS-1, better known in the industry as "HFR."
A single CRS-1 system supports 1.2T bit/sec of bandwidth, according to Cisco. Each slot is capable of 40G bit/sec, and Cisco plans to deliver full-capacity single-port OC-768c, four-port OC-192c, four- and eight-port 10G bit/sec Ethernet and 16-port OC-48c interface modules when the router ships in mid-July.
The entry-level base price for the CRS-1 is $450,000.
Cisco expects to be taking revenue for the new router in its first quarter of fiscal 2005, which begins in August. Beta testers for the router include Sprint and Deutsche Telekom, Cisco officials say; MCI and NTT are also trialing the system.
在一个独家演示中有个足球雷竞技app，MCI显示了它和思科所要求的是第一个40G位/秒IP传输。在旧金山市中心的MCI存在点，CRS-1似乎通过OC-768C链路维持光纤通道IP数据包的线速率转发到圣何塞的MCI流行音乐 - 即使是104 km - 即使是链接正在饱和与Agilient测试仪的数据包。
Only packets from the tester were dropped while the Fibre Channel IP packets were forwarded without disruption, the companies claimed. The demo was conducted over MCI's existing fiber plant, which supports 10G bit/sec wavelengths - the 40G bit/sec Fibre Channel data streams were modulated down to a 10G bit/sec spectrum using StrataLight OTS-4000 Optical Terminal Subsystem.
"This is the first instance of IP networking on a 40G bit/sec wavelength," said Jack Wimmer, MCI vice-president for Network Architecture and Advanced Technology. "I think this is history-making as far as the industry is concerned."
The CRS-1 doesn't stop there, however. Up to 72 CRS-1 chassis can be interconnected into a single 92T bit/sec router, Cisco claims, through the linkage of eight optical interconnects that attach to the routers via a dedicated, non-customer-facing port.
凭借这种规模，思科希望敌对竞争对手瞻博网络，准备推出TX互连two-year-old T-640 routerswhenever customers feel the need for it, says Juniper Founder and CTO Pradeep Sindhu. TX is a switching matrix that Juniper says can link eight or more T640s to achieve at least 5T bit/sec of non-blocking throughput.
Sindhu admits, however, that multiple TX matrices cannot be interconnected to achieve even greater scale. But so what, he says.
"Scalability and line rate (performance) are yesterday's problems," Sindhu says. "It's not sufficient to just build big, bad routers and solve the problem with bandwidth. It's taken (Cisco) a long time to get to feature parity compared to where Juniper is."
思科的光学互连仍在试验中，但思科官员表示，他们可以随着年底拥有它。
CRS-1 will also feature a new, modular operating system designed specifically for carrier core routing applications. The IOS-XR operating system will feature a microkernel with POSIX APIs and a messaging layer to support separately partitioned applications, services and protocol operations to reduce or eliminate planned and unplanned outages, Cisco says.
The IOS-XR operating system kernel was acquired from QNX Software Systems, a small Canadian developer of realtime operating system code to companies in the automotive, communications, defense, industrial automation and medical device markets. Cisco already ships QNX operating system code in its uMG9850 QAM digital video module for the Catalyst 4500 Gigabit Ethernet switch.
Other QNX customers include British Telecom (BT), Lockheed Martin, Motorola, Siemens, Ford Motors and Texaco.
Cisco developed the 40G bit/sec network processors - called the Silicon Packet Processors - for the system, which feature 188 CPUs on a chip, each individually programmable. Cisco says this eliminates the need to install new line cards to support new features.
Taken altogether, analysts believe the CRS-1 will help Cisco reverse a 9% drop in market share since the second quarter of 2002. All and more of that went to Juniper, which notched a 10% share gain over that period.
“我们认为这款产品将在高端核心路由器市场中更好地位思科，”瑞银瑞银武术分析师Nikos Theodosopoulos在产品发布的公报中。“Juniper”跨越'思科与T-640路由器。我们认为思科现在旨在将竞争与一流的40 GB / S界面相互跨越（以及）99.999％的可靠性。“
This story, "Cisco's HFR is here" was originally published by边缘 .