C6880-X supports 10/100/1G/10G/40G on all ports. However, it does not allow you to configure auto-10-100, auto-1000, or disabled auto-neg and lock/speed duplex. Seems like a curious omission. Following the standards for GigE and beyond, we run auto on our facilities, but we still run into "carriers" stuck in the 90s. This could be a pain. -- Tim:>