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 - IP Multicast

S7700 and S9700 V200R013C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, IPv4 PIM, IPv6 PIM, MSDP, multicast VPN, layer 3 multicast CAC, IPv4 multicast route management, IPv6 multicast route management, IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, layer 2 multicast CAC, multicast network management.
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).
Multicast NSR

Multicast NSR

Non-Stop Routing (NSR) is a feature used to implement master/slave switchover on the control plane. Through multicast NSR, the protocol control plane can back up protocol control information, including neighbor information, MDT information, RP set information. Multicast NSR also finishes information synchronization between the protocol control plane and the forwarding control planes, and between the forwarding control plane of the MPU and the forwarding control plane of the LPU.

Through multicast NSR, the adjacent devices cannot sense the master/slave switchover of the current device. Therefore, multicast routing is not interrupted and the MDT is not changed, which will not trigger the processing on the adjacent devices.

Multicast NSR not only ensures non-stop service forwarding but also enables the device to process Join and Leave message in time. In addition, multicast NSR is also applicable to the scenario where the topology changes after a master/slave switchover. It fast responds to the change of the topology and avoids packet loss. Compared with Graceful Restart (GR), NSR has a great improvement.

Currently, multicast NSR is applicable to the following protocols:
  • Internet Group Management Protocol (IGMP)
  • Multicast Listener Discovery (MLD)
  • Protocol Independent Multicast - Sparse Mode (PIM-SM)
  • Protocol Independent Multicast-Source-Specific Multicast (PIM-SSM)
  • Multicast Source Discovery Protocol (MSDP)
  • Multicast Virtual Private Network (MVPN)
  • IPv6 PIM-SM
  • IPv6 PIM-SSM

Multicast NSR is not applicable to Protocol Independent Multicast - Dense Mode (PIM-DM).

Updated: 2019-04-08

Document ID: EDOC1100065742

Views: 46624

Downloads: 46

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