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Port Trunking
Port Status and Configuration
• 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 10-3.
• You can configure the trunk group with one, two, three, or four ports
per trunk (2600, 2600-PWR, 4100gl, and 6108 switches) or with one to
eight ports (2800 switches). 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 the chapter “Port-
Based Virtual LANs (VLANs) and GVRP” in the Advanced Traffic
Management Guide.)
(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 12-5. 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.)
12-11