IronPort Systems 4108GL - Manual (Page 215)

11-17
Optimizing Port Usage Through Traffic Control and Port Trunking
Port Trunking
Po
rts: T
ra
ffic
C
o
n
tr
o
l
an
d T
run
ki
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• All ports in a trunk must have the same media type and mode (such
as 10/100TX set to 100FDx, or 100FX set to 100FDx). The flow control
settings must also be the same for all ports in a given trunk. To verify
these settings, see “Viewing Port Status and Configuring Port Param-
eters” on page 11-2.
• You can configure the trunk group with one, two, three, or four ports
per trunk. If multiple VLANs are configured, all ports within a trunk
will be assigned to the same VLAN or set of VLANs. (With the 802.1Q
VLAN capability built into the switch, more than one VLAN can be
assigned to a trunk. See “Port-Based Virtual LANs (Static VLANs)” on
page 14-4.)
(To return a port to a non-trunk status, keep pressing the Space bar
until a blank appears in the highlighted Group value for that port.)
Figure 11-7. Example of the Configuration for a Two-Port Trunk Group
6. Move the cursor to the Type column for the selected port and use the
Space bar to select the trunk type:
– LACP
– Trunk (the default type if you do not specify a type)
– FEC (Fast EtherChannel
®
trunk)
All ports in the same trunk group on the same switch must have the same
Type (
LACP, Trunk, or FEC).
7. When you are finished assigning ports to the trunk group, press [Enter], then
[S] (for Save) and return to the Main Menu. (It is not necessary to reboot
the switch.)