3750X Stack Power Limitation With Non-POE Switch

[Robert Ho]

We have 9 x 3750x switches with 5-nonPOE and 5-POE.

There is a limitation with 4 POE per stack with Stack Power.

Can we combine all 9 to one stack since there are only 4 POE?

Or, is the 4-switch limitation applied regardless if they are mixed with POE and non-POE?

Thank you

[Robert Ho]

Typo - meant:

We have 9 x 3750x switches with 5-nonPOE and 4-POE.

Can we combine all 9 to one stack since there are only 4 POE?

Or, is the 4-switch limitation applied regardless if they are mixed with POE and non-POE?

Thank you

[Collin Clark]

You can stack all 9. The 4 stack restriction is for 'stack power' only. Some people create a stack of 8 with 2 'stack power' stacks

[Robert Ho]

If you want all switches to participate in stackpower, then the 4-switch limitation applies regardless if it is POE or nonPOE? Thanks.

[Collin Clark]

You can only have 4 switches per 'power stack'. If you want non-PoE to be in a power stack the same rules apply. Regular 'data' stacks can still be all nine. Looking below you can see there is a 'data' stack of 9 switches and 3 stack power groups.

S

T

A

C

K

|---SW1--Pwr1

|

|---SW2--Pwr1

|

|---SW3--Pwr1

|

|---SW4--Pwr2

|

|---SW5--Pwr2

|

|---SW6--Pwr2

|

|---SW7--Pwr3

|

|---SW8--Pwr3

|

|---SW9--Pwr3

[Joseph W. Doherty]

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Posting

Because you're using both PoE an non-PoE switches, you might want to take actual power demands and power supplies into careful account for how you might partition the power stacks.

[Leo Laohoo]

We have 9 x 3750x switches with 5-nonPOE and 4-POE.

I don't recommend you have a stack of more than 6 3750X switch units in a stack.  Stack up to 6 and NO MORE.

[Collin Clark]

I try and not stack anymore than two, but that's just me.