At present, collaboration between NQA and static routing, backup center and policy routing is implemented.NQA ImplementationConceptsl NQA agent: client in an NQA test.l NQA server: In a narrow sense, an NQA server is the NQA server in a UDP echo, TCP, UDP jitter, or voice test; in a broad sense, an NQA server refers to the peer device to be probed, such as an FTP server or an HTTP server.l Test gr