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Virtualized Route Reflector Nokia VSR Release 14 • Improve network performance with industry-leading virtualized Route Reflector (vRR) implementation The virtualized Route Reflector (vRR) is a virtualized network function (VNF) delivered by the Nokia Virtualized Service Router (VSR). • Enable cloud scaling with easy addition of memory and CPU resources • Optimize the use of available x86 hardware resources The virtualized implementation of the Border Gateway Protocol (BGP) route reflector delivers industry-leading performance and supports a full array of route reflection features, allowing agile RR deployment in all types of networking environments. Autonomous system VSR Route Reflector VSR Route Reflector EBGP peer PE router (RR client) PE router (RR client) PE router (RR client) Overview PE router (RR client) EBGP peer Virtualized Route Reflector A Route Reflector, as specified in RFC 4456, is a specific role in a Border Gateway Protocol (BGP) routing scheme where only a select number of routers—RRs—are designated as prefix distribution and policy nodes, participating in volume routing topology updates and are providing the best paths (according to network policy) to their clients. BGP route reflection enables highly scalable network topologies and improves overall efficiency of the network. The vRR functionality on the VSR is based on the field-proven Nokia Service Router Operating System (SR OS). The Nokia 5620 Service Aware Manager (SAM) delivers VNF and element management and allows network operators to seamlessly manage physical and virtualized RRs using consistent and uniform operations, administration and maintenance protocols and management practices. Route reflection is a control plane function with low impact on data plane traffic, which makes it ideal for virtualization. A virtualized RR implementation offers an alternative to dedicated routing platforms, delivering improved performance and control plane scalability. Virtualized RR functionality is implemented on the Nokia Virtualized Service Router (VSR) and features key Nokia innovations that deliver enhanced performance and scalability. 1 Data sheet Virtualized Route Reflector Introducing cloud-optimized route reflection A carrier-grade vRR solution that caters to your evolving needs Virtualized BGP RR on the Nokia VSR is operationally equivalent to the implementation of the BGP RR on the Nokia 7750 Service Router (SR) or on the Nokia 7950 Extensible Routing System (XRS). The VSR implements the Nokia SR OS, re-architected and optimized for the x86 server environment. Powered by innovations such as symmetric multiprocessing (SMP) and a 64-bit OS, the Nokia VSR takes full advantage of the underlying multicore capabilities and larger memory offered by server virtualization technologies, setting a new benchmark for RR performance and scalability. The VSR delivers RR functionality as an integrated, single-virtual machine (VM) system. The VSR also enables flexible RR deployment as: a single RR for all services, separate RRs for each service (e.g., internet, Layer 3 VPN or Layer 2 VPN) or RRs for specific groups of services (e.g., all IPv6 protocols). In addition, the VSR enables linear RR performance scaling by fine-tuning VM resources based on application needs. As a vRR, the Nokia VSR dramatically improves overall network convergence times by performing heavy-duty BGP route processing, for which traditional network elements (designed for high-throughput applications) are not as well suited. The VSR also optimizes the use of all available CPU cores. The Nokia VSR enables easy addition of memory and CPU resources to improve RR scalability and performance. Increased memory allows for an increased number of BGP peers and routing entries. Additional CPU resources improve performance for reflecting or advertising routes as well as improving route convergence times. Deployment The Nokia VSR can be deployed as a vRR in all types of IP environments, facilitating internet connectivity or deployment of Layer 3 IP VPN services. Layer 2 Ethernet VPNs (EVPNs), a next generation of Ethernet services, are also supported. EVPNs are growing in importance in the industry because they offer sophisticated access redundancy combined with Layer 3 VPN-like operations for scalability and control. 2 Data sheet Virtualized Route Reflector Technical specifications BGP • RFC 1997, BGP Communities Attribute • RFC 4271, A Border Gateway Protocol 4 (BGP-4) • RFC 4360, BGP Extended Communities Attribute • RFC 4456, BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP) • RFC 4724, Graceful Restart Mechanism for BGP • RFC 4760, Multiprotocol Extensions for BGP-4 • RFC 4893, BGP Support for Four-octet AS Number Space • RFC 5065, Autonomous System Confederations for BGP • RFC 5575, Dissemination of Flow Specification Rules • RFC 7311, The Accumulated IGP Metric Attribute for BGP • RFC 7606, Revised Error Handling for BGP UPDATE Messages • RFC 7911, Advertisement of Multiple Paths in BGP EVPN • draft-ietf-bess-evpn-overlay-02, A Network Virtualization Overlay Solution using EVPN • draft-ietf-bess-evpn-prefix-advertisement-02, IP Prefix Advertisement in EVPN • draft-ietf-bess-evpn-vpls-seamless-integ-00, (PBB-) EVPN Seamless Integration with (PBB-)VPLS • draft-snr-bess-evpn-proxy-arp-nd-00, Proxy-ARP/ND function in EVPN networks • RFC 7432, BGP MPLS-Based Ethernet VPN • RFC 7623, Provider Backbone Bridging Combined with Ethernet VPN (PBB-EVPN) Please refer to the Nokia VSR data sheet for system feature specifications and standards compliance. Nokia is a registered trademark of Nokia Corporation. Other product and company names mentioned herein may be trademarks or trade names of their respective owners. Nokia Oyj Karaportti 3 FI-02610 Espoo Finland Tel. +358 (0) 10 44 88 000 Product code: PR1607021047EN (August) © Nokia 2016 nokia.com