Kingston Technology Kingston Fast EtheRx KNS3250/R User Manual
Page 22
KNS3250/R Users Guide - Rev. A00
Kingston Technology Company
Kingston Switch Configuration Utility
17
Sample source MAC address
Sample destination MAC address
00:C0:F0:1C:23:48
00:C0:F0:22:32:51
The byte is in hexadecimal format, the chart below shows the binary value and the
bit numbers:
Byte = Bit Data
Bit Number:
7 6 5 4 3 2 1 0
Last byte of source MAC address (SA)
48
0 1 0 0 1 0 0 0
Last byte of destination MAC address (DA) 51
0 1 0 1 0 0 0 1
The mapping rule is described below:
1. The two bits selected by the user for mapping will result in an odd or even value
assignment.
Exclusive Or (XOR) Values
Bit 1
Bit 2
Bits Selected
Value
0
0
0 XOR 0
= 0 [Even]
0
1
0 XOR 1
= 1 [Odd]
1
0
1 XOR 0
= 1 [Odd]
1
1
1 XOR 1
= 0 [Even]
2. Four combinations of the result are mapped to four trunk ports:
Source Address
Destination Address
Trunk Port
Odd
Odd
Trunk Port 1
Odd
Even
Trunk Port 2
Even
Odd
Trunk Port 3
Even
Even
Trunk Port 4
For example, if the user species bit 1 and 0 for mapping and Trunk 2 is assigned,
the packets would be sent to the third Trunk Port of Trunk 2 (which would be Port
7).
Last Byte