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Configuration Guide - IP Unicast Routing

CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of IP Unicast Routing, including IP Routing, Static Route, RIP, RIPng, OSPF, OSPFv3, IPv4 IS-IS, IPv6 IS-IS, BGP, Routing Policy, and PBR.

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Summary of RIPng Configuration Tasks

Summary of RIPng Configuration Tasks

After basic RIPng functions are configured, you can build a Layer 3 network using the RIPng protocol. If other RIPng functions are required, configure them according to reference sections.


The RIPng function is controlled by a license. By default, this function is disabled on a newly purchased CE12800 and CE12800E series switches. To use the RIPng function, apply for and purchase the license from the Huawei local office.

Table 4-1 describes the RIPng configuration tasks.

Table 4-1 RIPng configuration tasks




Configuring basic RIPng functions

Basic RIPng functions include enabling RIPng and enabling the RIPng process on interfaces. The basic RIPng functions must be configured before you use the RIPng features.

Configuring Basic RIPng Functions

Preventing routing loops

RIPng is a routing protocol based on the distance vector algorithm. RIPng devices advertise their local IPv6 routing tables to neighbors, so routing loops may occur.

RIPng uses split horizon and poison reverse to prevent routing loops:
  • Split horizon: A route learnt by RIPng from an interface is not sent to neighbors from the interface. This reduces bandwidth consumption and prevents routing loops.
  • Poison reverse: RIPng sets the cost of a route learnt from an interface to 16 (an unreachable route), and sends the route to neighbors through the interface. In this way, RIPng can delete useless routes from the neighbor routing table and prevent routing loops.

Preventing Routing Loops

Controlling RIPng routing

To use RIPng more flexibly on the existing network and meet various user requirements, you can configure different parameters to control RIPng routing.

Controlling RIPng Routing

Controlling the advertising and receiving of RIPng routes

In practical applications, to meet network requirements, you can configure different parameters to accurately control the advertising and receiving of RIPng routes.

Controlling RIPng Route Advertisement

Improving RIPng network performance

In practical applications, you can configure special RIPng functions to improve RIPng network performance.
  • Adjusting the value of the RIPng timer to change the RIPng network convergence rate.
  • Adjusting the number and interval of Update packets sent by the interface to reduce device resource and network bandwidth consumption.
  • Checking the zero fields in RIPng packets to meet network requirements for high security.

Improving RIPng Network Performance

Updated: 2019-03-21

Document ID: EDOC1000166601

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