1 Designed for medium-sized to large enterprise and campus networks. 2  Supports centralized, distributed, and mesh deployments. 3  Optimized for 802.11ac Wave 2 next-generation networks.  Supports up to 1500 access points and 20,000 clients.
the plank is one of the best exercises for a flat toned stomach because it works all the muscles in your core including the rectus abdominus the six pack muscles you can see transverse abdominus internal and external obliques hips and back
The best way to improve is to keep doing the plank, and also do a few exercises such as push-ups. (Anything that works your core or shoulders.) My one tip for endurance is to get really motivated â holding the position requires a lot of mental toughness, so work on focusing your mind and working through the pain.