46 / 66 page
AL103 Revision 1.0
9/00
Reference Only / Allayer Communications
46
Port Trunk Port Assignment Registers (Registers 2E to 35)
The Port to Trunk Port assignment register assigns a port to a trunk for port-based load balancing
trunking. Please see example in the trunking section.
A port to trunk port work sheet is provided in Appendix II.
Table 29: Miscellaneous Register (Register 2D)
BIT
NAME
DESCRIPTION
15~11
Reserved
Set value to 0.
10
L2DASA
Select the Algorithm for MAC Based Loading.
0: SA only.
1: SA and DA.
9
L2Fail
Trunk Link Fail Over.
0: Don’t fail-over when a trunk port fails.
1: Allow link fail-over for trunking.
8
L2MAP
Enable 2 or 3 Port MAC Based Trunking Option.
0: Disable
1: Enable
7~4
TrunkMap1
MAC Based Trunk Port Mapping for Trunk 1.
0: Non-trunk port.
1: Trunk port.
3~0
TrunkMap0
MAC Based Trunk Port Mapping for Trunk 0.
0: Non-trunk port.
1: Trunk port.
Table 30: Port Trunk Port Assignment Registers (Registers 2E to 35)
BIT
NAME
DESCRIPTION
15~4
Reserved
Should be set to 0.
3~2
Trunk1
Trunk Port of Trunk 1.
00: Port 4
01: Port 5
10: Port 6
11: Port 7
1~0
Trunk0
Trunk Port of Trunk 0.
00: Port 0
01: Port 1
10: Port 2
11: Port 3
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