Configuring Bgp4+ 6Pe Frr - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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9.15 Configuring BGP4+ 6PE FRR

After you configure 6PE FRR on a device, the device can select a backup next hop for received
6PE routes. When the next hop of the primary route between PEs becomes unreachable, traffic
will be quickly switched to the backup next hop.
9.15.1 Before You Start
Before configuring BGP4+ IPv6 Provider Edge (6PE) FRR, familiarize yourself with the usage
scenario, pre-configuration tasks, and required data. This can help you complete the
configuration task quickly and accurately.
Applicable Environment
6PE services are sensitive to the packet loss and delay. If high requirements are imposed on the
reliability of the IPv4/MPLS network that carries the 6PE services, you can enable 6PE FRR on
6PE devices.
Enabled with 6PE FRR, a 6PE device selects an optimal route and a sub-optimal route among
the routes with the same IP prefix from different 6PE peers. The optimal route serves as the
primary route, and the sub-optimal route serves as the backup route. When traffic forwarding
on the primary route fails, 6PE services can be quickly redirected to the backup next hop.
Pre-configuration Tasks
Before configuring 6PE FRR, complete the following tasks:
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Configuring a routing protocol on 6PE devices to enable the connectivity between devices
on the IPv4/MPLS network
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Copyright © Huawei Technologies Co., Ltd.
9 BGP4+ Configuration
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