Hi Harald, thanks for your reply, I will perform more tests later about the bandwidth. The very big problem is unfortunately the second: the packet loss on the second LAN port.
Bye bye. Andrea On Mon, Feb 9, 2009 at 10:25 AM, Harald Schiöberg <[email protected]>wrote: > Andrea Tassi wrote: > > Hi, > > > > I'm testing the latest OpenWrt trunk revision on my new UBNT > > RouterStation. I have discovered two problems: > > > > 1) I have tested the WAN port bandwidth with Iperf: > > [ 3] 0.0- 2.0 sec 7.08 MBytes 29.7 Mbits/sec > > [ ID] Interval Transfer Bandwidth > > [ 3] 2.0- 4.0 sec 7.04 MBytes 29.5 Mbits/sec > > [ ID] Interval Transfer Bandwidth > > [ 3] 4.0- 6.0 sec 7.02 MBytes 29.4 Mbits/sec > > [ ID] Interval Transfer Bandwidth > > [ 3] 6.0- 8.0 sec 7.02 MBytes 29.4 Mbits/sec > > as you can see the Bandwidth is ~29.5Mbits/sec and not ~100Mbits/sec. > > Is it normal?? > > I don't personaly know the ubqn hardware, but > that's what I'd expect from one of the older 200-300 Mhz mips devices > (wl500, wrt54, ...), not from a 600+ Mhz cpu. If I where to guess, I'd > say it should be arround 60 mbit.. Still I have not seen any mips based > hardware that delivers 100mbit routing performance. Alix and > avila/cambria are afaik the only openwrt devices that can do it. > > You can check whether there are any stateful firewall rules in place > (especially NAT) , those significantly degrade performance. > > Also switching on support for ebtables (filtering on the software > bridges) is known to degrade performance. This is afaik true even if the > module is not used, but just selected in the kernel config. > > What is the frame size of your iperf, was it measured with 1500 byte > frames, or something smaller? > > Did you measure routing, or did you measure with iperf running on the > device? If you run iperf on the device, than this would be a really good > value, since this is way slower than routing. > > so long > harald > > > > 2) the LAN interface next to the WAN port has the same problem. The > > other port works but it has a very unstable behaviour: if I ping the > > RouterStation through a cable direct connected to the board I have a > > packet loss very height!! > > > > Any ideas? Thanks > > Andrea > > _______________________________________________ > > openwrt-users mailing list > > [email protected] > > http://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-users > > > > _______________________________________________ > openwrt-users mailing list > [email protected] > http://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-users >
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