Meaning bridge
You can ensure multiple routers within the network address in the same network segment
Bridging Implementation
Cable Bridge
https://jingyan.baidu.com/article/9c69d48f99a31b13c9024eb5.html
Points
Will use the router as a switch
Wireless bridge
https://baijiahao.baidu.com/s?id=1620349751264334001&wfr=spider&for=pc
Points
Use the WDS function: Wireless Distributed System