Internet cut when power up a cisco SG350-20

[Michke]

Hello,

I have 6 Cisco SG350-20 plugged one after another. The path is this one : internet box -> Cisco 1 -> cisco 2 -> cisco 3 ... -> cisco 6. When we remove the power chord from cisco 5 and put it back in, just after cisco 5 finishes his restart, computer plugged into cisco 4 lose internet for a second before catching it back. Is it related or not? 

Thank you !

[marce1000 · Accepted solution]

 - Depends , if there are 'spanning vlans' over the boxes, there could be side effects such as SPT-renegotiation causing an interrupt. Have look at the logs on cisco 4 when this happens, perhaps you will find additional events to take care of.

 M.