Pages

network cisco ccna gns3 certification arteq

network cisco ccna gns3 certification arteq
a network runs through it

Search insearchofthecert

Tuesday, January 15, 2013

multicast mac...

the easiest way to remember the assignment of a multicast mac...

hit it wendell...


A 48-bit address that is calculated from a Layer 3 multicast address by
using 0x0100.5E as the multicast vendor code (OUI) for the first 24 bits, always binary 0 for the 25th bit, and copying the last 23 bits of the Layer 3 multicast address.


first 24 is always 0100.5e

always 0 for bit 25

then copy the last bits of the layer 3 multicast...

it never stops...

No comments:

Post a Comment