Could you please clarify what xxx netgr refers to? For example, is it:
In the current architecture, an IP address serves a dual identity. It is both a (where the device is) and an identifier (who the device is). This conflation was efficient in a static world, but in a mobile, hyper-connected world, it is a disaster. When a smartphone switches from Wi-Fi to 4G, its IP changes. In the eyes of the network, the connection breaks. The upper-layer protocols (TCP) must scramble to re-establish state, often resulting in dropped calls or stalled downloads. xxx netgr