Yes-None of the stack ports on the member has an attached stack cable. No-At least one stack port on the member has an attached stack cable. Whether a stack cable is attached to a stack port on the member.
If a large number of changes occur in a short period of time, link flapping can occur. Yes-The link partner sends valid protocol messages to the port. No-The link partner does not send valid protocol messages to the stack port. Whether the link partner sends valid protocol messages to the stack port. The port can send traffic over this link. Yes-A neighbor is detected on the other end. The port cannot send traffic over this link. No-No neighbor is detected on the other end. Whether a neighbor is connected on the other end of the stack cable. Yes-There is a functional stack cable connected to this port. No-There is no stack cable connected to this port or the stack cable is not functional.
The link partner is a stack port on a neighbor switch. There may or may not be a neighbor connected on the other end. Whether the stack cable is connected and functional. The cable might not be connected, or the link might be unreliable. If the switch cannot detect the cable length, the value is no cable. Switch number of the active member at the other end of the stack cable. OK-A cable is detected, and the connected neighbor is up. show switch stack-ports summary Command OutputĪbsent-No cable is detected on the stack port.ĭown-A cable is detected, but either no connected neighbor is up, or the stack port is disabled. Port# Port Length OK Active OK Changes Loopback #/ Stack Neighbor Cable Link Link Sync # In Only Port 1 on stack member 2 is disabled.
Use the Mode button and port LEDs on the device to identify which devices are active switches and which devices belong to each active switch.Įnabling the Persistent MAC Address Feature: Example The other active switch remains as a standalone device. Through their StackWise ports, connect devices. All other member switches in the stack remain as member One of the remaining member switches becomes the new active switch. The new switch is added to the switch stack. Through their StackWise ports, connect the new switch to a powered-on switch stack. The other stack member has a new stack member The stack member with the higher priority value retains its stack member number. If necessary, use the switch current-stack-member-number renumber new-stack-member-number Īssuming that one stack member has a higher priority value than the other stack member:Įnsure that both member switches have the same stack member number. The stack member with the lower MAC address is elected active switch.
#Command to find mac address on cisco switch license
The stack member with the saved configuration file is elected active switch.Īctive switch election specifically determined by the MAC addressĪssuming that both member switches have the same priority value, configuration file, and license level, restart both member Make sure that one stack member has a default configuration and that the other stack member has a saved (nondefault) configuration The stack member with the higher priority value is elected active switch.Īctive switch election specifically determined by the configuration fileĪssuming that both member switches have the same priority value: Restart both member switches at the same time. Use the switch stack-member-number priority new-priority-numberĬommand to set one stack member with a higher member priority value.
Only one of the two active switches becomes the new active switch.Īctive switch election specifically determined by the stack member priority valueĬonnect two switches through their StackWise ports. Most of these switch stack configuration scenarios assume that at least two devices are connected through their StackWiseĪctive switch election specifically determined by existing active switchesĬonnect two powered-on switch stacks through the StackWise ports.
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