Example 3; Example 4; Figure 33: Invalid Stack Trunk With Different Numbers Of Links; Figure 34: Invalid Stack Trunk With Different Port Types - Allied Telesis AlliedWare Plus GS980MX Series Installation Manual

Chapter 2: Virtual Chassis Stacking

Example 3

Example 4

78
Trunks must have the same number of physical links between switches.
Figure 33 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 33. Invalid Stack Trunk with Different Numbers of Links
Trunks cannot have both 1/2.5/5Gbps and 10Gbps links. Figure 34 shows
an example of an invalid stack trunk because it uses both types of ports.
Figure 34. Invalid Stack Trunk with Different Port Types
1 3 5 7 9 11 13 15 17 19
20
2 4 6 8 10 12 14 16 18 20
20
FDX HDX COL
1000 LINK ACT 100 LINK ACT
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
FDX HDX COL
1000 LINK ACT 100 LINK ACT
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
14
2 4 6 8 10 12 14 16 18 20
FDX HDX COL
1000 LINK ACT 100 LINK ACT
21 23
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 10G / 1G
26 28/S2
21 23
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 10G / 1G
26 28/S2
23
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 26 10G / 1G 28/S2
4628
4627
21 23
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 24 10G / 1G
26 28/S2
24
21 23
25 SFP+ 27/S1
CONSOLE
CLASS 1
LASER PRODUCT
22 24 24 10G / 1G
26 28/S2
4627