DMZ SWITCH

I have a dmz switch (3560) running in our network. Now we have a single point of failure and I wish to add a second switch. I am running private-vlan scheme. I want to configure a trunk port using sfp gigabit interface. Please should I do a private vlan mapping on my trunk port.
Should my primary interface on the new switch have a different ip address.
 
Thanks
hermanazeforAsked:
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clonga13Commented:
It depends on what your doing. Are there multiple VLANs on your DMZ? where is the firewall located in relation to these switches. If your just trying to add a second switch for disaster recovery purposes or more capacity, then just configure a trunk between the two switches with a cross over cable between them.
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hermanazeforAuthor Commented:
I am doing a direct connection between my two 3560 using fiber gbic. I have multiple private vlans and a two regular vlans. Would it be prudent to just configure a port without mapping the private vlans via the trunk and do I need a different ip address for this new switch or just a replica of my other switch.

Thanks
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clonga13Commented:
If they are going to up and running at the same time, then you need a unique IP address for the new switch. I would just do a trunk between the switches including all the VLANs since you may at any moment move computers from one switch to the other.
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