DeviceA has three physical outbound interfaces: Port 1, Port 2, and Port 3. The bandwidths of the three interfaces are 10 Gbit/s, 1 Gbit/s, and 1 Gbit/s, respectively. Three IPv4 equal-cost routes are available between DeviceA and DeviceB.
When UCMP is not enabled in the three interfaces, their traffic ratio is 1:1:1.
After UCMP is enabled on the three interfaces, the traffic ratio of the three interfaces approaches the bandwidth ratio 10:1:1.