Am Tue, 28 Mar 2017 21:19:29 +0100 schrieb Jorge Almeida <jjalme...@gmail.com>:
> I have net by cable with nominal speed 200Mbps. The ISP provides a > modem/router Netgear (from Numericable). I disabled the WiFi and I > have 2 computers connected via ethernet to the router. The speed is > about 156Mbps (measured by http://www.speedtest.net), which seems to > be what to expect. > > Now, having a device provided by the ISP to act as router seems to be > good for people who trust both the ISP and the manufacturer. (Please > comment if I'm being too paranoid.) > > So, I setup the router to work in bridge mode and connected one of the > 4 lan ports to the Wan port of a secondary router TP-link (Archer > C1200, Wireless dual band gigabit). It is supposed to comply with > 802.11b/g/n 2.4GHz and 802.11a/n/ac 5GHz. Not that this matters per > se, as I disabled the WiFi. > > The point is: I connected the computers to the lan ports of my > secondary router (with original firmware, but I intended to install > ddwrt), and the setup works, except that the speed never reaches > 100Mbps. > > Which part is to blame? The secondary router boasts 1300Mbps on 5GHz > WiFi, so I assumed it could deal with 150Mbps on cat5e ethernet cable. > The power consumption is about 4.5w, which seems a bit flimsy. > Or maybe the primary router is thottling speed when in bridge mode? Is > this possible at all? (And if so, what could be the purpose of such > measure? *spooky*) > > Someone has a similar setup? Any experience with that (TP-link) > router? I'm using a 400 MBps cable link here, directly connected, I can get 48 MBytes/s out of it (which should be very close if not even little above 400 MBps), even when using the TP-Link as switch. If I use bridge mode and use TP-Link as router, it stop roughly around 300 MBps. My previous router even stopped at 30 MBps. It's a CPU issue. The internal CPU needs to do layer 3 routing. Layer 2 routing (switching) can be done by hardware. Login to your router and see how the CPU is loaded. Use top. If you still loaded it with its original hardware, you cannot do this, tho. Try OpenWRT (that is what I used). I think there's a database which contains throughput test results with different router hardware and different firmware. However, with a quick google search, I cannot find it. You may have more luck. [some moments later] I think it's here: https://www.smallnetbuilder.com/tools/charts/router/bar/180-lan-to-wan-tcp/31 -- Regards, Kai Replies to list-only preferred.
