Yes there are so many institution offered online Networking course some of their name I am telling here :

National Programme on Technology Enhanced Learning (NPTEL)

Courses
Computer Networks
Cryptography and Network Security



Massachusetts Institute of Technology
Courses
Computer System Engineering
Data Communication Networks
Information Technology Essentials
Network and Computer Security
Network Optimization

Rensselaer Polytechnic Institute
Courses
Broadband and Optical Networks
Computer Communication Networks
Experimental Networking

University of Michigan
Courses
Introduction to Information Studies
Networked Computing: Storage, Communication, and Processing
Networks: Theory and Application

Universiti Teknologi Malaysia
Courses
Telecommunications and Networking