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

Reminder

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

upgrade

NE20E-S V800R010C10SPC500 Feature Description - IP Multicast 01

This is NE20E-S V800R010C10SPC500 Feature Description - IP Multicast
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).
Application Scenarios for Multicast

Application Scenarios for Multicast

Introduction to Multi-Instance Multicast

Multi-instance multicast is the basis of transmitting multicast data across VPNs. Multi-instance multicast applies to IPv4 VPNs.

A VPN needs to be separated from a public network and also from other VPNs. As shown in Figure 2-8, VPN A and VPN B are isolated yet connected to the public network through provider edge (PE) devices.

Figure 2-8 Typical VPN networking

On this network:

  • P belongs to the public network. Each customer edge (CE) device belongs to a VPN. Each router is dedicated to a network and maintains only one forwarding mechanism.

  • PEs are connected to both the public network and one or more VPN networks. The network information must be completely separated, and a separate set of forwarding mechanism needs to be maintained for each network. The set of software and hardware device that serves the same network on the PE is called an instance. A PE supports multiple instances, and one instance can reside on multiple PEs.

NOTE:

For details of the multi-instance multicast technique, see the HUAWEI NE20E-S Universal Service Router Feature Description - VPN.

Applications of Multi-Instance Multicast

Multi-instance multicast implements the following functions for PEs:

  • Maintains a separate multicast forwarding mechanism for each instance. A forwarding mechanism supports all multicast protocols and maintains a PIM neighbor list and a multicast routing table. Each instance searches its own forwarding table or routing table when forwarding multicast data.

  • Isolates instances from each other.

  • Implements communication and data exchange between a public network instance and a VPN instance.

Translation
Download
Updated: 2019-01-03

Document ID: EDOC1100055119

Views: 12635

Downloads: 19

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