In this paper, in order to embed virtual networks by considering network security, we propose a virtual network embedding based\non security levelwithVNF placement. In this method, virtual networks are embedded in a substrate network by considering security\nand some security VNFs are placed in order to increase the security level of substrate networks. By using our proposed method,\nmany virtual networks can be embedded by considering security level. As a result, the reward can be increased and the cost of\nplacing VNFs is not increased so much.We evaluate the performance of our proposed method with simulation. The performance\nof this method is compared with the performance of a method that places VNFs randomly and the performance of a method\nwithout placing VNFs. From numerical examples, we investigate the effectiveness of this method. In numerical examples, we show\nthat the proposed method is effective in embedding virtual networks by considering network security.
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