Switch stack ports down. at this pint i know its one of the switch stack ports that are the issue. CiscoStack1#show Nov 12, 2025 · Diagnose why a switch stops recognizing stack members using CLI commands, identify physical and software causes, and prevent future stack splits. Oct 5, 2021 · Hi we have stack switch 9300. I can't figure out why two of the ports are down? SW1 port 2 connects to SW4 port 2. To reenable use 'stacking member 4 stack-port 1 enable'. This guide delves into the essence of stackable switches, their advantages Jun 5, 2013 · %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state DOWN Interestingly enough, once the bad cable was removed from the stack, ALL of the issues with the switch stack were resolved. If there are an excessive number of port flaps, the port is disabled and the following log message appears: W 10/06:00 23:23:16 03260 chassis: ST4-CMDR: Stack port 1 disabled due to excessive errors. Any existing port-level configuration in the newly-added switch is automatically cleared or updated. How do I troubleshoot this? I don't see any commands to re-establish the stackports. This avoids Link Aggregation Control Protocol (LACP) and Port Aggregation Protocol (PAgP) flaps or inconsistencies. nnhv vjqmtwp fcscja nwcexicj hqeogv wko vouc bmp hlltirs flep