i need to change my career from electronics to networking field and i have 3 years experience is this decision of mine is good

yes this is good but you have to prepare for clear some certification in networking line to make future in networking field

Hi, Ideally you should stick by your domain as that will help you with a cutting edge in the competitive market. As for networking, you might be required to start from scratch. So be careful. Make a decision keeping in mind your strengths, aptitude and career goals. Be free to discuss further.