Hi Xyxue, It does match your configuration. You requested a 2:1 ratio un-equal cost load balancing, you got a 5:3, which VPP considers to be close enough. It’s not exact because the number of buckets in a load-balance is always a power of 2.
/neale From: <[email protected]> on behalf of 薛欣颖 <[email protected]> Date: Tuesday, 9 January 2018 at 12:26 To: vpp-dev <[email protected]> Subject: [vpp-dev] question about load balance Hi guys, I'm testing routing load balance. There is a question : When I configured 1:2 , the actual effect 3:5. My configuration and more info is shown below: configuration: ip route add 4.1.1.1/24 via ip4-address 1.1.1.2 interface host-eth0 weight 1 ip route add 4.1.1.1/24 via ip4-address 2.1.1.2 interface host-eth4 weight 2 The actual effect: 4.1.1.0/24 unicast-ip4-chain [@0]: dpo-load-balance: [proto:ip4 index:22 buckets:8 uRPF:29 to:[0:0]] [0] [@5]: ipv4 via 2.1.1.2 host-eth4: 000c296db08c2c534a0393540800 [1] [@5]: ipv4 via 2.1.1.2 host-eth4: 000c296db08c2c534a0393540800 [2] [@5]: ipv4 via 2.1.1.2 host-eth4: 000c296db08c2c534a0393540800 [3] [@5]: ipv4 via 2.1.1.2 host-eth4: 000c296db08c2c534a0393540800 [4] [@5]: ipv4 via 2.1.1.2 host-eth4: 000c296db08c2c534a0393540800 [5] [@5]: ipv4 via 1.1.1.2 host-eth0: 000c296db078fc4dd4dad8af0800 [6] [@5]: ipv4 via 1.1.1.2 host-eth0: 000c296db078fc4dd4dad8af0800 [7] [@5]: ipv4 via 1.1.1.2 host-eth0: 000c296db078fc4dd4dad8af0800 How can I make the actual effect the same as my configuration? Thanks, Xyxue ________________________________
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