The LACP fallback command in Aruba VSX configurations allows the system to continue forwarding traffic even if LACP negotiation fails or is not established. This is useful when provisioning a gateway or link that does not support LACP, ensuring that the port remains operational in a static manner.
It is not specifically for backward compatibility with LACP v1.
It does not relate to operation with a single partner interface.
It also is not about active/passive LACP modes per se.
Therefore, LACP fallback is configured to support provisioning a gateway without LACP.
[References:, , ArubaOS-CX LACP Configuration Guide, , Aruba VSX LAG and Fallback Documentation, , HPE Aruba Networking Best Practices for Link Aggregation, ]
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