speed all

This command sets the speed and duplex setting for all interfaces if auto-negotiation is disabled. If auto-negotiation is enabled, an error message is returned. Use the no auto-negotiate command to disable.‘

Default Auto-negotiation is enabled. Adv. is 10h, 10f, 100h, 100f, 1000f.
Format speed all {100 | 10} {half-duplex | full-duplex}
Mode Global Config