When the network technology is developing rapidly, network traffic also increasing significantly. Due to the development of In-Vehicle-Network (IVN), a lot of application about audio and video has been implemented. It causes the high requirement to IVN. In this case, IEEE 802.1 Audio/Video Bridging standard has been published. Therefore, IVN traffic's delay meet the millisecond level requirement. Go further, for control data, whose delay need to be guaranteed in the microsecond, IEEE 802.1 Time Sensitive network is being proposed. In this paper, we will verify the redundancy path which proposed in IEEE 802.1CB by simulation.