One of the most frequent questions we receive about Ethernet lately is, "I see you have a 40 and 100 Gigabit Ethernet Consortium, but do you actually have any devices to test?" The answer is a qualified yes; while our test bed is small, it's growing every day and test reports are going out. However, it turns out that the most aggravating problems with 40 and 100 Gigabit devices are not related to conformance to the 40 and 100 Gigabit Ethernet standard, but to the availability of components such as optical modules and PHY silicon.