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The Cisco Cloud Services Router (CSR) 1000V is a single-tenant router in virtual form-factor that delivers comprehensive WAN gateway functionality to multi-tenant provider-hosted clouds. Using familiar, industry-leading Cisco IOS software networking capabilities, the CSR 1000V enables enterprises to transparently extend their Wide Area Networks into external provider-hosted clouds and cloud providers to offer enterprise-class networking services to their tenants.
Businesses, small and large, are increasingly vitalizing their data center infrastructures and applications, to save costs and become more agile. Many enterprises have started deploying IT applications in virtualized data centers that are built and managed by third-party service providers. These external data centers, known as provider hosted clouds, allow enterprises to gain infrastructure and resources on demand and become even more operationally efficient.
However, the shared-infrastructure shared-resource cloud environment poses networking and security problems to enterprises. First, an enterprise does not have ownership of its cloud connectivity, so cannot extend its network configuration into the cloud. Next, it does not enjoy the same levels of privacy and security for its cloud deployment as it does in its premises. Third, it cannot directly connect its distributed sites to its cloud applications - having to instead backhaul all network traffic through its data center - because it lacks a network-aware endpoint in the cloud. The cloud also presents networking challenges to cloud providers. The primary concern is the scale limitations of the current network switching architecture. The cloud provider also lacks all the components of an end-to-end managed connectivity service offering to its customers, including Quality of Service (QoS), application visibility and Service Level Agreements (SLA).
The Cisco CSR 1000V addresses these cloud-based networking and security constraints. Built on the same proven Cisco IOS software platform that is inside the Cisco Integrated Services Router (ISR) and Aggregation Services Router (ASR) product families, it offers a rich set of features, including routing, VPN, firewall, NAT, QoS, application visibility, failover and WAN optimization. These functions empower enterprises and cloud providers to build highly secure, optimized, scalable and consistent hybrid networks.