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I have tried to make a LACP port-channel between Nexus9000v x2 on eve-ng on GCP. But it seems that Nexus can not receive LACP frame from Nexus's lacp counter and wireshark. After that, I found out the following limitation and solution on CCO document.

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https://www.cisco.com/c/en/us/td/docs/s ... 0D1021306E

LACP connection between the VMs: The LACP connection is not formed between eNXOSv. For the solution, complete the following steps:
- The Linux kernel should be patched.
- Group forward mask should be set up using the echo 0x4 > /sys/class/net/vb7af2d7ab777d0/bridge/group_fwd_mask command.
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So I attempted to above command to receive LACP frame. But the result is the following.

root@instance-1:~# echo 0x4 > /sys/class/net/vnet0_1/bridge/group_fwd_mask
-bash: echo: write error: Invalid argument
root@instance-1:~#

Does anybody have any other solution for passing LACP frame on eve-ng on GCP?

I found a workaround. LACP was forwarded by changing connection between Nexus Switches from linux bridge to ovs with forward-bpdu option manually.
Thanks.