CDRouter TR-069 provides a built-in ACS for CPEs to communicate with. In CDRouter 7.1 and later, the ACS utilizes the Linux TCP stack for all communication with the CPE. The Linux TCP stack offers improved performance but requires Linux kernels 2.6.35 or newer. Previous versions of CDRouter and systems using kernels older than 2.6.35 will continue to use CDRouter’s native TCP stack.
CDRouter’s native TCP stack can also be forced, regardless of the kernel installed, by setting this testvar to a value of no.