I have some 24 port (4 Gpbs) cards in my Gen 2 line card 9509's and while trying to add 4 Gbps ISL's, I can't seem to get some ports to accept 4 Gpbs dedicated E port settings. Some ports do but some ports don't. I keep getting a popup saying not enough bandwidth.
This happens on ports 13 to 24. I already have 2 x 4 Gpbs E ports assigned and I can create E ports in some of the other ports which are all free.
I have configured ports 15 and 19 and I can't make port 23 into an E Port. I can make port 22 into an E port.
What would cause this error? The first 12 ports have 9 enabled and they are all running 4 Gbps shared mode to servers that are not pushing the bandwidth.