Symptom

1.Request disable this auto config change to "switch stack-speed high" feature . 2.Add some alrt or error message to let customer and TAC know the stack add failed reason . ------- https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-6/configuration_guide/stck_mgr_ha/b_176_stck_mgr_ha_9300_cg/configuring_high_speed_stacking.html Manufacture Default Stack Bootup with High Speed Stacking When a stack boots up in the manufacture default configuration, it always boots up with the lowest speed among members. If the stack is homogenous and consists of switches capable of High Speed Stacking, a script running on the active switch determines that the switches are capable of high speed. The active switch configures the stack to high speed and initiates a second round of reloads. After the second reload all the members of the stack load with high speed configured. The stack becomes a high speed ring. The homogenous stack of Catalyst 9300X switches must be a full ring stack for the automatic script to work. The script will work automatically within the first 15 minutes of uptime only. -------

Conditions

this is an enhancement request to Cat9300X high speed stacking feature

Workaround

Further Problem Description