![]() ![]() Switch assumes the role of the active switch, and continues to the keep the stack operational. If the active switch becomes unavailable, the standby Layer 2 and Layer 3 protocols present the entire switch stack as a singleĪ switch stack always has one active switch and one standby switch. Note that Cisco Catalyst 9300L series switches connect through their StackWise-320 ports.The stack members work together as a unified system. You cannot have a switch stack containing a mix of different license levels.Ī switch stack can have up to eight stacking-capable switches connected through their StackWise -480 ports. It does not have any functional or operational impact. The current state 'NO_NEIGHBOR': rep_lsl_rx Gix/x/x -Traceback= Only homogenous stacking is supported, that is, a stack of Cisco Catalyst 9300 Series Switches stack with only Cisco Catalyst 9300 Series Switches as stack members.Ĭisco Catalyst 9300L Series Switches stack with only Cisco Catalyst 9300L Series Switches as stack members.Ĭ9300-24UB, C9300-24UXB, and C9300-48UB switches can only be stacked with each other.ĭuring a switchover, when the standby device syncs with the active device, the following log message is displayed on the console: %SM-4-BADEVENT: Event 'standby_phy_link_up' is invalid for The following are restrictions for your switch stack configuration: See the System Management section of this guide.Īll the switches in the switch stack must be running compatible software versions.
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