Dual NM-ESW-16

[jeffcline_2]

Does anyone know where I can find the documents that deal with putting two esw-16 into one router? I vaguely remember there has to be an external cable that connects the Gig ports or the esw cards would not work properly.

[vijayasankar]

Hi Jeff,

Yes. You need to connect the two modules via the gigabit ethernet port.

Here's the URL to have more clarity.

http://www.cisco.com/en/US/products/hw/modules/ps2643/products_qanda_item09186a00802c9e7a.shtml#qa13

Hope this helps. Kindly rate the post if it does.

-VJ

[vijayasankar]

Hi Jeff,

Also have a look at this FAQ page.

http://www.cisco.com/en/US/products/hw/modules/ps2643/products_qanda_item09186a00802c9e7a.shtml#qa12

-VJ

[jeffcline_2]

This helped if I were going to use the switches in stacking mode. If I am using them as independent switches do I still need the cable? I should have been more specific with the original question. After doing more research I found that if I am using these switches in an independent fashion I don't believe I need the external cable. I do appreciate your response.

http://www.cisco.com/en/US/products/ps5854/products_qanda_item0900aecd802a9470.shtml

[vijayasankar]

Hi Jeff,

As long as you are going to use those Etherswitch modules separately as two different switches, you dont need to stack them.

If you are going to use both the etherswitch modules as one single logical unit, then you need to stack them.

The reason being, the vlan database created on the etherswitch modules reside locally on the module, it will not be visible to the router. Hence when you want to combine both those modules as single logical unit, you need to stack them so that they share a single vlan database.

Hope it clears you query. Kindly rate the post if it does.

-VJ