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Cisco CRS-1 Backbone Core Router. Carrier Routing System (CRS) is a modular and distributed core router developed by Cisco Systems Inc that enables service providers to deliver data, voice, and video services over a scalable IP Next-Generation Network (NGN) infrastructure.
IOS XR was announced along with the CRS-1 in May 2004. [4] The first generally available version was 2.0. Some significant releases include the following. 3.2 – first generally available version for the 12000 router series; 3.9 – first generally available version for the ASR 9000 router series
In 2005 Cisco introduced the Cisco IOS XR network operating system on the 12000 series of network routers, extending the microkernel architecture from the CRS-1 routers to Cisco's widely deployed core routers. As of release 6.x of Cisco IOS XR, QNX was dropped in favor of Linux.
Cisco CRS-1 Backbone Core Router. A core router is a router designed to operate in the Internet backbone, or core.To fulfill this role, a router must be able to support multiple telecommunications interfaces of the highest speed in use in the core Internet and must be able to forward IP packets at full speed on all of them.
Networking giant Cisco (CSCO) on Tuesday unveiled a new network router it says "will forever change the Internet and its impact on consumers, businesses and governments." The new system, called ...
Dynamips is an emulator computer program that was written to emulate Cisco routers. It was developed by Christophe Fillot, who began working on it in August 2005. Dynamips runs on FreeBSD, Linux, Mac OS X and Windows. It emulates the hardware of the Cisco series routing platforms by directly booting an actual Cisco IOS software image into the ...
However, many enterprise customers chose equipment Cisco categorized under the banner of being intended for service providers, and vice versa. Prior to the ASR 9000 series, Cisco's high-end SP product portfolio consisted of the CRS-1, the GSR, and the 7600 (and the 6500). The ASR 9000 series devices are the successor to both the GSR and the 7600.
Cisco Systems, Inc. (using the trademark Cisco) is an American multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware , software , telecommunications equipment and other high-technology services and products. [ 4 ]