asked on

What is the best way to cable 2 - 3750 switches power stack cables

Hello EE,
We have 2 3750 units we are bringing up in a stack.
This is the first time I've seen the power stack cables so am I going to do switch 1 power 1 to power 2 on switch 2?
What is the best approach

aleghart

Sw1 Port1 > Sw2 Port1
Sw1 Port2 > Sw2 Port2

Sw1# stack-power switch 1 port 1 enable
Sw1# stack-power switch 1 port 2 enable
Sw1# stack-power switch 2 port 1 enable
Sw1# stack-power switch 2 port 2 enable
Sw1# stack-power switch 1 port 1 enable

Sw1# stack-power stack POWERSTACK-A
Sw1(config-stackpower)# mode redundant
Sw1(config-stackpower)# exit

Sw1# stack-power switch 1
Sw1(config-switch-stackpower)# stack POWERSTACK-A
Sw1(config-switch-stackpower)# exit

There are more options for priority and power shedding you can find here:

aleghart

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_53_se/configuration/guide/3750xscg/swstkpwr.html#wp1015591

Both cables are not required, but should provide tolerance to failure of cable, port, or an admin who disables a port or pulls a cable accidentally.

I think you can also connect ports 1>2 and 2>1 and it should behave the same.

operationsIT

ASKER

Does going from Sw1 Port1 > Sw2 Port1 and Sw1 Port2 > Sw2 Port2
offer any benefits over going from ports 1>2 and 2>1?

It appears power-sharing is default what would be the benefit of changing to mode redundant?

ASKER CERTIFIED SOLUTION

aleghart

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial