There seems to be a problem with CRS125 wire speed. Say ports 3-24 is set up with port2 as master port. Now, if you connect a 10mbit (or 100mbit) device to any of the grouped ports, and two 1Gbit devices to two of the other ports in the same group, the max data transfer speed between the two 1Gbit devices will be 10mbit (or 100mbit)!
I remember I ran into this issue when the CRS125 was released, and worked around it by connecting a gbit switch between the 10/100mbit devices and the CRS125. Today a customer reports the same issue running ROS 6.38.1
Is this a bug, or me doing something wrong when preconfiguring for the customers?