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Getting the DUAL-3-SIA EIGRP error message
The DUAL-3-SIA error message indicates that an Enhanced Interior Gateway Routing Protocol (EIGRP) route is in the Stuck In Active (SIA) state. This means that an EIGRP router has not received a reply to a query from one or more neighbors within the time allotted, which is approximately three minutes. When this happens, EIGRP clears the neighbors that did not send a reply, and logs a DUAL-3-SIA error message for the route that went active.