Network Diagram - software?

Hello,

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I have a new project regarding CISCO switches and routers.

In this first phase, the objective is to create the network diagram. This network consists of more than +500 switches and +100 routers and firewalls.

I don't have access to the equipment, I only have access to their configuration dumps.

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Is there any software that through the dumps can create the network diagram? (paid or free)

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Thanks a lot for the help :)