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CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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Configuring the PrefVal Attribute

Configuring the PrefVal Attribute

Context

The PrefVal attribute is a Huawei proprietary attribute and is valid only on the device where it is configured. When a BGP routing table contains multiple routes to the same destination, BGP prefers the route with the highest PrefVal.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bgp { as-number-plain | as-number-dot }

    The BGP view is displayed.

  3. Enter the corresponding address family view based on network type to configure BGP devices on networks.

    • Run ipv4-family { unicast | multicast }

      The IPv4 address family view is displayed.

    • Run ipv6-family [ unicast ]

      The IPv6 address family view is displayed.

  4. Run peer { group-name | ipv4-address | ipv6-address } preferred-value value

    The PrefVal attribute is configured for all the routes learned from a specified peer.

    By default, the PrefVal of a route learned from a peer is 0.

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Updated: 2019-05-17

Document ID: EDOC1000174069

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