Cisco Switch installation

We currently have a Cisco 3750x 24port Switch in place but are now going to replace this with a 48port 3750x

what are the best practice to replace the old Switch could i copy the running config file and place it into the new Switch or would creating a Spanning Tree Server on the Old Switch and Client on the new switch be better ?
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Don JohnstonInstructorCommented:
could i copy the running config file and place it into the new Switch
You could try and copy the old config to the new switch. But that assumes the first 24 ports of the new switch will be connected to the same devices as the the 24 ports on the old switch. If that's the case, I would certainly give it a try.  

With that approach, I like to copy the config about 15 lines at a time or in sections. That way if the new switch doesn't like a particular command you'll be able to easily see it. If you copy the whole config, it can be a bit of a pain trying to determine the problem commands.

creating a Spanning Tree Server on the Old Switch and Client on the new switch be better?
Not sure what you mean here. I've never heard of a "Spanning Tree Server".  Do you mean VTP?  If so, that's one way to do it. Add the new switch as a client, let it pick up the VLAN database, then make it a server. But I'm not a big fan of VTP.  I would put the switch in transparent mode and manually create the VLANs.
DavidfoleyAuthor Commented:
Hi Don,

Sorry got my terminology mixed up yes i did mean VTP.  

we are going to label all the Cables to which port they came from and place them into the same ports onto the new Switch and manual configure the extra 24 ports into the Vlans.
Don JohnstonInstructorCommented:
Then you should be good to go. The only other possible issue would be any depreciated commands if the new switch is running a newer IOS version. But given the age of the switches, I doubt you'll run into that.
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DavidfoleyAuthor Commented:
what about Cisco stacking method would that push the configs onto the new switch
Don JohnstonInstructorCommented:
No. That won't "push" the configs onto the new switch. It would just add the new switch to the stack. The config of the old switch will not become the config of the new switch.

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Don JohnstonInstructorCommented:
Would you please explain your grade of "C".

From the grading guidelines:

C should only be given for an incomplete solution that does not fully address or answer the question. A C grade should be awarded only after the asker has replied to all expert comments, provided all requested information, tried all suggested solutions, given the experts ample time to reply, and received clarification about the answer given. The asker must justify giving a C grade and give the experts an opportunity to improve it.  If the answer provided is incomplete or unsatisfactory enough to get a C grade, the asker should consider deleting the question entirely.
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