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NE40E V800R010C10SPC500 Feature Description - Network Reliability 01

This is NE40E V800R010C10SPC500 Feature Description - Network Reliability
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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).
Overview

Overview

The NE40E ensures high reliability of services through the following approaches:

  • Status control: Several BRASs negotiate a master BRAS through VRRP. With the help of BFD or Ethernet OAM, the master BRAS can detect a link fault quickly and traffic can be switched to the standby BRAS immediately.

  • Service control: Information about access users is backed up to the standby BRAS from the master BRAS through TCP. This ensures service consistency.

  • Route control: By controlling routes in the address pool or user routes in a real-time manner, the BRAS ensures that downstream traffic can reach users smoothly when an active/standby switchover occurs.

Different services use different forwarding controls:

  • IPv4 unicast forwarding control
  • IPv4 multicast forwarding control
  • L2TP service forwarding control
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Updated: 2019-01-03

Document ID: EDOC1100055045

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