On the network shown in the figure, EBGP peer relationships are established between neighboring routers...

Although BGP supports load balancing across multiple equal-cost routes, configuring a maximum of eight routes does not guarantee that eight routes will become active.

Huawei BGP compares several attributes when determining whether multiple routes qualify for ECMP forwarding. These include PrefVal, Local_Pref, AS_PATH, Origin, MED, and other applicable route-selection attributes.

In the topology, R3 receives advertisements for 192.168.1.0/24 through different autonomous systems. Consequently, the received routes contain different AS_PATH attributes.

By default, Huawei BGP requires matching AS_PATH attributes for ordinary load balancing. Paths with different AS sequences do not qualify merely because their AS_PATH lengths are equal.

No load-balancing as-path-ignore configuration is specified in the question.

Therefore, R3 selects one best BGP route, even though the configured maximum is eight. The correct answer is C.

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