Allied Telesis AT-S25 - Manual (Page 81)

AT-S25 Management Software User’s Guide
81
Creating Port Trunks on 10/100 Mbps and 100 Mbps Expansion
Modules
The ports on an expansion card that contains two or more 10/100 Mbps
or 100 Mbps twisted pair or fiber optic ports can be grouped together to
form a port trunk, as shown in Table 4.
Creating Port Trunks on One Gigabit Expansion Modules
If a switch contains two expansion modules and each module has one
gigabit port, you can group the two ports into one trunk. This is the only
instance where you can create a port trunk from different port groups on
a switch. Both gigabit modules must be installed in the same switch and
both modules must be of the same medium type (i.e., either both fiber
or both twisted pair).
Table 4 Trunked Ports on 10/100 Mbps and 100 Mbps Expansion
Modules
Number of Ports on
Expansion Module
Port Trunks
1 Does not support port trunking.
2 One port trunk consisting of two ports.
4 One trunk consisting of two, three or four ports.