On Thu, April 23, 2015 06:16:08 CEST, Toerless Eckert wrote: > This mail thread seem to have gone dark since december with seemingly > no conclusion. > > I have tried to collect the experiences reported on the wiki page: > > wiki.openwrt.org/toh/mikrotik/rb2011uias > > As you can see from the table, for me it only works with 0x6f. > Chris, for whom both 0x3e and 0x6f work has a rev 2 AR9344. I have > a rev 3. AR8327 is rev. 4 on both our routerboards. No info what rev Matt > has, he is the other one reporting that only 0x6f works. > > I am also observing some amount of increases in switch 0 port 0 > RxBadByte (aka: from CPU to AR8327). It seems to happen for > all type of traffic sent from CPU to switch, eg: whether i inject it from > WiFi or from a 100 Mbps port, and whether i send it out > on an untagged port (lan) or tagged one (from CPU, Wan).
I'm under the impression that some of the "OK/Not OK" reports are based on ping packet loss which provides limited insight into actual throughput. My results with a RB2011UiAS-IN (no WiFi, empty SFP cage, AR9344 Rev. 2, CPU @ 600MHz powered from the DC-in jack) on patched 15.05: 0x06000000 (Unpatched) No TCP/IP 2-way connection [Not OK] ====== 0x3e000000 (MikroTik Eth1 -> laptop, crossover cable) /bin/bash -c "dd if=/dev/zero bs=1M count=1000 | netcat 192.168.1.101 7777" 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 1589.44 s, 660 kB/s [Not OK] (laptop -> MikroTik Eth1, crossover cable) dd if=/dev/zero bs=1M count=1000 | nc 192.168.1.121 7777 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 49.6707 s, 21.1 MB/s [OK] ====== 0x6f000000 (MikroTik Eth1 -> laptop, crossover cable) /bin/bash -c "dd if=/dev/zero bs=1M count=1000 | netcat 192.168. 1.101 7777" 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 176.224 s, 6.0 MB/s [OK?] (laptop -> MikroTik Eth1, crossover cable) dd if=/dev/zero bs=1M count=1000 | nc 192.168.1.121 7777 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 50.7454 s, 20.7 MB/s [OK] Any word on the bootloader patch? Happy to test more values as needed. Sincerely, George > I have not really identified any noticeable performance impact from > this effect through. > > Would be nice to hear some logic why 0x6f is the right value. > >> From the discussion it looks a bit like trial and error. >> > > Cheers > Toerless > >
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