Moving from a SMB to an Enterprise with 1000's of employees

Hi All,

I will be soon moving from a SMB (less than 1000 Employees) to an enterprise with 5000 plus employees (5+ years in Networking and CCNP). I worked really hard to reach there. The scale of the network at new company is much bigger than existing company network and wanted to understand how others in this group handled such a transition? Is it normal to get a bit anxious with this kind of move? What are some of the common mistakes to avoid in a large network environment?

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Thanks,