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Ask the Expert- SD-WAN

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Beginner

Peer-Linking a 3750G and 3850

I need to peer-link two switches. Can I peer-link a Cisco 3750G running 12.2.55-SE12 with a Cisco 3850 Running Denali-16.3.7? It would be a temporary solution for us, I know the 3750G's are end of support. We're just looking for a temporary fix. My concern is with that the IOS for the G's wont be compatible with Denali on the 3850. Thanks for any help.

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Hall of Fame Guru

Re: Peer-Linking a 3750G and 3850

 

What exactly are you trying to do, connect the switches together at L2 or L3 or something else ?

 

Jon

Beginner

Re: Peer-Linking a 3750G and 3850

Its just L2 connectivity to have the two switches vPC'd together.

Hall of Fame Guru

Re: Peer-Linking a 3750G and 3850

 

So you want to connect them using etherchannel spread across both switches in each stack ? 

 

If so I cannot see why this wouldn't work but can't say for sure as I have not done it between those specific switch stacks. 

 

Jon

Beginner

Re: Peer-Linking a 3750G and 3850

Essentially, yes. The two switches are stand alone (not stacked) but yes. Thanks for your help.

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