No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Configuration Guide - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Configuration Guide - VPN
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring LDP VPWS

Configuring LDP VPWS

Usage Scenario

Carriers have constructed various types of backbone networks using different technologies. For example, they have constructed backbone public switched telephone networks (PSTNs) to carry voice services, FR backbone networks to carry FR data, and ATM backbone networks to transmit ATM data. As IP services develop rapidly, carriers have established IP backbone networks to meet this trend. In addition to backbone networks, diverse access networks are also constructed. As a result, low interoperability exists between different types of networks. It is an urgent task for carriers to find a way to effectively integrate these networks, enhance network utilization, and provide more types of services for users.

By converging previous access modes with the current IP backbone network, VPWS prevents repetitious network construction and saves operation costs. With the VPWS technology, an IP backbone network can be connected to various access networks, upgrading and enhancing the entire network. After an MPLS IP backbone network is constructed, the traditional datacom networks such as ATM and FR networks can be used as access networks. ATM and FR users are unaware of such network changes. With the VPWS technology, access networks of different protocols can interwork with each other. For example, ATM users and FR users can communicate with each other.

Figure 7-1 Typical VPWS application

Figure 7-1 is a typical VPWS networking diagram. The backbone network is an IP network accessed by LANs in different modes.

Assume that a carrier has established a nationwide backbone network to provide VPWS services. A customer has two branches: one in city A and one in city B. The branch in city A accesses the carrier's backbone network over an ATM network, and the branch in city B accesses the carrier's backbone network over an FR network. The carrier can set up a VPWS connection between access sites PE1 in city A and PE2 in city B.

In this manner, the carrier can provide point-to-point private network services over a WAN without taking special measures to address different access modes. In this solution, the customer does not need to modify the original enterprise network plan; the carrier can implement smooth migration to the IP backbone network without modifying existing access modes.

Pre-configuration Tasks

Before configuring LDP VPWS, complete the following tasks:

  • Configure static routes or an IGP protocol on PEs and Ps on the MPLS backbone network to ensure IP connectivity.

  • Configure basic MPLS functions on PEs and Ps of the MPLS backbone network.

  • Set up LDP sessions among PEs (if the PEs are indirectly connected, set up remote LDP sessions between them).

  • Establish tunnels between PEs based on the tunnel policy (if no tunnel policy is configured, the default tunnel policy LDP is used).

Configuration Procedures

Figure 7-2 Flowchart for configuring LDP VPWS

Figure 7-3 Flowchart for configuring LDP VPWS

Updated: 2019-01-14

Document ID: EDOC1100058925

Views: 33541

Downloads: 59

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Previous Next