What this means
The IEEE assigned the MA-L block E8056D to Nortel 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 E8:05:6D, it is Nortel Networks hardware.
Frequently Asked Questions
Who owns MAC prefix E8056D?
E8056D is registered to Nortel 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. Nortel Networks's block covers 16,777,216 addresses.
What devices use E8056D?
Any network device with a MAC address starting E8:05:6D was manufactured by or for Nortel Networks.