The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
If you have STP active, it should break the loop by blocking one of the two links (which might be per VLAN).
Perhaps better, if the other side of the link supports it, is having the two ports as a Etherchannel group. The two advantages, you're able to use both links for the same VLAN traffic and link failure should be less noticeable.
I want to connect the 2nd cross connect to the 2nd switch in the stack. Whats the best way for me to achieve redundancy on the connection.
What do you mean by this? Are you talking about the stack-wise cable or the 2nd uplink?
If you are talking about the 2nd uplink then the best way is to configure Etherchannel. Otherwise you'll need to play around with STP and this can cause nightmares-your-mom-warns-you-about when not properly monitored.