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Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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VPLS Application in Enterprise Services

VPLS Application in Enterprise Services

Service Overview

As enterprises set up more and more branches in different regions and office flexibility increases, applications such as instant messaging and teleconferencing are increasingly widely used. This imposes high requirements for E2E datacom technologies. A network capable of providing P2MP services is the key to datacom function implementation. To ensure enterprise data security, secure, reliable, and transparent data channels must be provided for multipoint transmission.

An enterprise has multiple branches located in different regions across a MAN. Layer 2 service packets between enterprise branches need to be transmitted over the MAN using the VPLS technology, so that the enterprise branches in different regions can communicate with each other.

Networking Description

Enterprise services are transmitted over a MAN. Figure 6-14 shows a typical VPLS network transmitting enterprise services. An enterprise has multiple branches. Site1, Site2, and Site3 are R&D departments. VPLS features are deployed to implement Layer 2 network communication between the sites.

Figure 6-14 Typical networking for enterprise services

Feature Deployment

VPLS is configured on PEs to transparently transmit traffic between PEs. From the perspective of enterprise users, the public network is like a Layer 2 switch. Figure 6-14 uses LDP VPLS as an example to show VPLS configuration:

  • Access-layer devices

    VLAN is configured to differentiate different types of enterprise users.

  • Convergence-layer devices

    An IGP is configured on PEs for these PEs to communicate with each other.

    Basic MPLS functions are configured on PEs so that these PEs can establish remote LDP sessions.

    MPLS L2VPN and VSIs are configured on PEs. Dual-homing is used on a VPLS network to protect traffic.

    Limit on the number of learned MAC addresses and traffic suppression are configured on PEs to protect data.

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Updated: 2019-04-03

Document ID: EDOC1100075353

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