Stacking & Additional Power Modules

BashedRoot · ‎09-12-2016

First, I appreciate the help I've received in the forums here. Thank you in advance, again!

Set up 2 x 3650 L3 switches recently and want to double confirm the following if true or not.

Secondary power modules can be installed hot swappable, no need to power down switches, correct? Is there a command I can run via CLI to check power module status (even health if possible)?

Secondary stacking cables, does it matter or even required to criss cross them among the 2 switches stacking ports?

Example: switch #1 port #1 to switch #2 in port #2. Switch #1 port #2 to swich #2 in port #1? Does it matter to do it this way?

Can the cables be inserted without the need to power down switches or reboot?

What's the easiest, perhaps foolproof way to upgrade the IOS software remotely? Especially want to upgrade to Denali when it becomes GA.

One last thing, I have IP restricted access to the swith for obvious reasons. I created a basic Centos 6x VPS to use that static IP, whitelist it in the switch in case I travel and need to access the switch from anywhere.

I'm guessing the correct commands would be:

ip access-list extended Manage-SSH
permit tcp any host xxx.xxx.xxx.xxx eq 22

So from the VPS I can run a simple

ssh "switchipaddress" and that should work, am I right?

Leo Laohoo · ‎09-12-2016

Secondary power modules can be installed hot swappable, no need to power down switches, correct?

Correct. Plug-and-play.

Secondary stacking cables, does it matter or even required to criss cross them among the 2 switches stacking ports?

Example: switch #1 port #1 to switch #2 in port #2. Switch #1 port #2 to swich #2 in port #1? Does it matter to do it this way?

I don't know about the rest but I would. This is due to redundancy if the stack should grow. The problem I see in this (regularly) is that I understand how these stacking working (and how they need to be cabled up) but not everyone does. So if I don't set the standard and no one will follow. I've seen a large stack and the stacking cable was simply cabled up without any thinking.