RB1100AH and ports 12/13 performance with ROS5.10-5.12rc1

I played with three RB1100AH and it looks like ROS5.10 and above have problem with the ethernet ports 12 and 13. The board is not able route more that 50~80 Mbps. The ports 1~11 with the same test setup runs over 400 Mbps. If is used ROS5.9 then ports 12 and 13 runs over 400 MBps too. If is used configruation with software bridge then ports 12 and 13 are crippled too with 5.10+.

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