Rb435G Network Interfaces Simple Solution

Yes this problem is still alive.
I’ve wrote about a similar to the above solution here (about 10sec downtime): http://forum.mikrotik.com/t/rb435g-failing-ethernet-interface/51769/1

@janisk: aslo look at:
http://forum.mikrotik.com/t/10-equipment-rb435g-presenting-the-same-problem/52227/1
http://forum.mikrotik.com/t/serious-request-for-the-new-year/52849/1
In short about “Ethernet ports locking up/stop sending” I found that:

  1. It happens on RB435G but not on RB600A. Might be related to that switch chip in RB435G???
  2. Only happens when ethernet port sends traffic. If it only receives never had happened. Might be ethernet or switch chip Tx counters/buffers overflow ???
  3. When it happens disable/enable the ethernet port doesn’t resolve it. But toggle the state of “switch-all-ports=yes or no” makes the port work again, without a reboot.
  4. Doesn’t matter how port is connected: 10m FTP to a Gigabit dumb switch or 30m FTP to a Gigabit L2 Managed switch both without PoE.
  5. Temperature doesn’t matter.