Designing and Implementing IP MPLS-Based Ethernet Layer 2 by Zhuo Xu

By Zhuo Xu

A consultant to designing and enforcing VPLS prone over an IP/MPLS switched merchant backboneToday's communique prone are trying to find comfort, simplicity, and versatile bandwidth throughout broad zone networks-but with the standard of carrier and keep watch over that's serious for enterprise networking functions like video, voice and information. provider Ethernet VPN providers in response to VPLS makes this a fact. digital inner most LAN carrier (VPLS) is a pseudowire (PW) dependent, multipoint-to-multipoint layer 2 Ethernet VPN provider supplied by way of providers companies by way of deploying a VPLS carrier to clients, the operator can concentrate on offering excessive throughput, hugely on hand Ethernet bridging providers and go away the layer three routing choice as much as the customer.Virtual inner most LAN providers (VPLS) is instantly turning into the number 1 selection for lots of businesses and repair services to install information verbal exchange networks. Alcatel-Lucent VPLS resolution permits carrier prone to provide company consumers the operational fee merits of Ethernet with the predictable QoS features of MPLS.Items Covered:Building Converged carrier Networks with IP/MPLS VPN TechnologyIP/MPLS VPN Multi-Service community OverviewUsing MPLS Label Switched Paths as carrier shipping TunnelsRouting Protocol Traffi c Engineering and CSPFRSVP-TE ProtocolMPLS Resiliency — Secondary LSPMPLS Resiliency — RSVP-TE LSP speedy RerouteLabel Distribution ProtocolIP/MPLS VPN carrier Routing ArchitectureVirtual Leased Line ServicesVirtual inner most LAN ServiceHierarchical VPLSHigh Availability in an IP/MPLS VPN NetworkVLL carrier ResiliencyVPLS provider ResiliencyVPLS BGP Auto-DiscoveryPBB-VPLSOAM in a VPLS provider community

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Additional info for Designing and Implementing IP MPLS-Based Ethernet Layer 2 VPN Services: An Advanced Guide for VPLS and VLL

Sample text

Because many enterprises have consolidated their data centers to a few sites, the need for higher-speed remote connectivity has become extremely important to enterprise IT managers. In addition, enterprises are now in the process of implementing bandwidth-intensive applications like video conferencing, web conferencing, and electronic image sharing across a wide area, thus prompting a need for additional bandwidth in their Wide Area Networks (WANs). Residential services are also evolving from dial-up Internet connectivity to broadband connectivity.

With LDP, the MPLS router distributes labels and establishes LSPs automatically. LDP distributes labels mapped with IP prefixes; therefore, its convergence performance is dependent on the underlying routing protocol. The introduction of RSVP-TE into MPLS LSP signaling brings significant improvement to the flexibility, reliability, and performance of the IP/MPLS network’s service transport mechanism. With an RSVP-TE–signaled LSP transport tunnel, an IP network can now provide carrier-level convergence performance by using resiliency features such as FRR and Secondary LSP.

MPLS-based VPNs offer a solution to meet service provider goals. This chapter introduces the IP/ MPLS VPN technology building blocks that enable the solution for service providers. To meet the requirements of service providers, the new-generation multi-service network must have the following characteristics: • Multi-Service with Cost Efficiency — The backbone network must provide various types of services to meet the requirements of enterprise and residential customers. The requirements of enterprise customers include providing Time Division Multiplex (TDM), FR, and ATM connectivity as well as business VPN services with high throughput.

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