EUI64
CCNP BSCI
[ 78 ] CCNP BSCI Quick Reference
48 bit MAC Address Format
LG
UL
OUI
UL bit is “universal/local” and is set to one to indicate locally determined MAC.
L/G bit is “local/group” and is set to one for broadcasts and multicasts.
Example 48 bit MAC Address: 00:11:2F:1D:1B:48
0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 1 1 1 1 0 0 0 1 1 1 0 1 0 0 0 1 1 0 1 1 0 1 0 0 1 0 0 0
0 0 1 1 2 F 1 D 1 B 4 8
EUI64
LG
UL
Example 48 bit MAC Address 00:11:2F:1D:1B:48 becomes EUI64 02:11:2F:FF:FE:1B:48
0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 1 1 1 1 0 0 0 1 1 1 0 1 0 0 0 1 1 0 1 1 0 1 0 0 1 0 0 0
0 0 1 1 2 F 1 D 1 B 4 8