Hello Anonymous, In order to debug IP forwarding issues I’m going to need more info. Please collect: ‘sh ip fib <YOUR_PREFIX>’ From a working and non-working configuration.
All FIB load-balancing is per-flow. So if you don’t have enough flows you won’t [necessarily] get the load distribution that you want. /neale From: <vpp-dev@lists.fd.io> on behalf of "vnaposto...@gmail.com" <vnaposto...@gmail.com> Date: Wednesday 9 December 2020 at 16:43 To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io> Subject: [vpp-dev] VPP ip route add multiple paths Hello to everyone, I am having an issue when trying to apply multiple paths on a running VPP to 3 other VPPs. Specifically after 2 paths are up when I add the 3rd path one or both the first two stop working. I am using these commands: sudo vppctl -s /run/vpp/cli-vpprouter1.sock ip route add 48.0.0.0/8 via 10.10.3.2 sudo vppctl -s /run/vpp/cli-vpprouter1.sock ip route add 48.0.0.0/8 via 10.10.6.2 sudo vppctl -s /run/vpp/cli-vpprouter1.sock ip route add 48.0.0.0/8 via 10.10.12.2 On the same subject I have an issue when trying to set different weights on a 2 route path. As suggested on this doc https://docs.fd.io/vpp/21.01/de/db4/clicmd_src_vnet_ip.html#clicmd_ip_route I use: sudo vppctl -s /run/vpp/cli-vpprouter1.sock ip route add 48.0.0.0/8 via 10.10.3.2 weight 9 sudo vppctl -s /run/vpp/cli-vpprouter1.sock ip route add 48.0.0.0/8 via 10.10.6.2 weight 1 but the traffic on weight 1 route is not the 1/10 of the total traffic, more like 4/10 of it. And that's the good scenario. When traffic gets elevated VPP sends most of the traffic on the path with the lower value rather than what I expected it to do. All vpps are connected through memif sockets. Can anyone help me with any of these issues? Is it me I am doing something extremely wrong?
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