Example 3; Figure 13: Invalid Stack Trunk With Different Numbers Of Links - Allied Telesis x530 Series Installation Manual

Chapter 2: Virtual Chassis Stacking

Example 3

48
Trunks must have the same number of physical links between switches.
Figure 13 is invalid because the top and middle switches are connected
with two links while the top and middle switches are connected to the
bottom switch with only one link each.
Figure 13. Invalid Stack Trunk with Different Numbers of Links
1 3 5 7 9 11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
20
1000 LINK ACT 100 LINK ACT FDX HDX COL
1 3 5 7 9 11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
FDX HDX COL
1000 LINK ACT 100 LINK ACT
1 3 5 7 9 11 13 15 17 19 21
2 4 6 8 10 12 14 16 18 20 22
FDX HDX COL
1000 LINK ACT 100 LINK ACT
21 23 27/S1
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
28/S2
22 24 26 10G / 1G 28/S2
21 23
27/S1
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 10G / 1G 28/S2
26 28/S2
23 27/S1
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
24 28/S2
26 10G / 1G 28/S2
4628
4627