Why is it advised by Cisco not to use the switch with the uplink as stack master?
There is no such restriction , not to use it. It is just possibly because if there is a master fail over, connectivity to the rest of the network would be lost. If you have redundant links, this should be fine to use the master uplink too.
What are the compatible USB that can be plugged on the 2960x usb slot (some of my usb key does not work in production)?
Is there any restriction concerning automatic IOS update on a stack?
When a master is lost, is the process of election the same?
Process of election is same, when a master is lost, member switch with highest priority, if the priority is same, switch with lowest mac address is elected as master
What is the best practice tool for real environment ....Packet tracer or GNS3.....?
is there any future availability for Cisco Packet tracer for real environment practice...
We are upgrading to 2960 XRs.
How many power supplies do we need for a 4 stack?
I think 2 on the top unit and 1 each on the other 3?
3 stack would be the same, 2 on the top unit and 1 each on the other 2?
There is no restriction of power supplies for a stack, Stack can operate with all switches having single power supply, but if you want for a redundancy purpose, you can have two power supplies.
Hi Cisco Experts,
I have a problem, I am about to deploy 4 new Cisco 2960-X 24 Ports +POE but my 2 switch are encountering intermittent connection due to uplink / trunk ports facing core switch are experiencing auto-reset. I hope somebody can help me / enlighten me why is it only the 2 switches are experiencing auto-reset on trunk port(s) while the other 2 are okay, knowing that they all have the same configurations and using the same Lan connection to Core switch.
Not sure which image you are using on the 2960X. Can you please load 15.2(2)E8 and check if you see the issue? I think it is a known issue.