3Com Baseline 2226-PWR Plus, User Manual

Page: 39 / 77

Configuring Link Aggregation 39
The Switch does not support the Link Aggregation
Control Protocol (LACP), which is specified in IEEE
802.3ad.
Trunk Membership
The Switch has four pre-defined trunks, each of
which can support up to eight ports.
Table 11 lists the
possible membership groups for each trunk.
These four port groups correspond to the four sepa-
rate physical connector blocks on the front panel of
the Switch. You cannot trunk ports that belong to dif-
ferent port groups.
A trunk can consist of either 10/100 ports or
10/100/1000 ports (fixed ports 25 and 26). It is not
possible to have a trunk containing a mixture of
10/100 and 10/100/1000 ports. Adding port 25 or 26
to a trunk containing 10/100 ports will result in an
error.
A trunk created using ports 25 and 26 can only use
the fixed RJ45 10/100/1000 ports. SFP ports cannot
be aggregated.
If a port is a member of an aggregated link (or trunk),
you will not be able to configure its individual port
settings. All member ports of an aggregated link will
have the same settings, and you can configure these
by clicking the AL link on the Port Configuration
screen. See
“Configuring Trunk Settings” on
page 40 .
Adding Ports to a Trunk
To add ports to a trunk:
1
On the menu, click Link Aggregation . The Link Aggre-
gation screen appears.
Figure 18 Link Aggregation Screen
2
Add ports to a trunk by selecting the option buttons
for the ports. For example, if you want to add ports 1
to 4 to Trunk 1, click the option buttons under ports
01 to 04 that are on the same row as Trunk 1.
Each trunk must not have more than eight member
ports.
3
Click Apply .
Table 11 Port Groups and Members
Port Group Ports
AL1 Ports 1-4, 13-16
AL2 Ports 5-8, 17-20
AL3 Ports 9-12, 21-24
AL4 Ports 25 and 26 (RJ-45 ports only)