
It is advisable to monitor the router for any stability issues if using CTF and FA+CTF. As DD-WRT kernels get updated the CTF blob may break compatibility. Note of caution with using CTF (from the SFE section) is that it could have issues with ipv6, as well as potential issues due to being a static blob that never gets updated. **Throttled means it is unlikely to reach 1 Gigabit speeds with these settings.Ĭonclusion: It is advisable to select SFE and FA+CTF in most cases (due to updates and ipv6 compatibility) however, CTF and FA+CTF is also a good option. Therefore is likely to represent base case scenario.

*Extrapolation does not account for overhead. Sample benchmark of 2 minute download on Steam with various configurations on 300Megabit connection: In all cases ensure that the download is capable of maxing out your bandwidth. Or a Torrent download of a large Linux ISO. A more representative test is to initiate a large download (for example a 20GB+ game on Steam or Epic stores). In many cases where will show full Gigabit speeds, once download of 10GB+ files is initialized the CPU will be saturated and speed will slow down.

NOTE: Services like are not a good representation for throttling due to CPU. They help overcome data layer limitations of the router. They help overcome physical limitations of the router.įlow Acceleration: Options are provide Level 2 NAT Acceleration. SFE: Options are provide Level 1 NAT Acceleration. Additionally, after settings is set, perform one last router reboot for the settings to be read on module load.Īdditionally ddwrt implemented Broadcom's Flow Acceleration, this utilizes hardware in the Broadcom chip to facilitate level 2 NAT acceleration. NOTE: After a factory clean or initial boot after flash, perform a reboot for the options to show up.

SFE accelerated NAT was added to DD-WRT in build 08-03-2017-r33006 (kernel 3.10+), which Kong tested at 900 Mb/s throughput (download and upload).īoth options are available from Setup -> Basic Setup menu. It is not as efficient as CTF however it can be updated and has no reliance on Broadcom. Stock Netgear firmware implements Broadcom's proprietary CTF (Cut Through Forwarding), it comes as a binary blob, no one outside of Broadcom knows how it operates. Without them gigabit speeds on WAN port would be impossible with 1Ghz dual core CPU. Netgear r7000 employs various NAT Acceleration techniques in order to facilitate faster downlink speeds.
