What this means
The IEEE assigned the MA-L block 00D0D1 to Sycamore Networks. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 00:D0:D1, it is Sycamore Networks hardware.
Frequently Asked Questions
Who owns MAC prefix 00D0D1?
00D0D1 is registered to Sycamore Networks in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Sycamore Networks's block covers 16,777,216 addresses.
What devices use 00D0D1?
Any network device with a MAC address starting 00:D0:D1 was manufactured by or for Sycamore Networks.