C
ONFIGURING
THE
S
WITCH
2-80
Command Usage
Besides balancing the load across each port in the trunk, the other
ports provide redundancy by taking over the load if a port in the
trunk fails. However, before making any physical connections
between devices, use the Web interface or CLI to specify the trunk
on the devices at both ends. When using a port trunk, take note of
the following points:
• Finish configuring port trunks before you connect the
corresponding network cables between switches to avoid
creating a loop.
• The ports at both ends of a connection must be configured as
trunk ports.
• When configuring static trunks, you may not be able to link
switches of different types, depending on the manufacturer’s
implementation.
• The ports at both ends of a trunk must be configured in an
identical manner, including communication mode (i.e., speed,
duplex mode and flow control), VLAN assignments, and CoS
settings.
• All the ports in a trunk have to be treated as a whole when
moved from/to, added or deleted from a VLAN.
• STP, VLAN, and IGMP settings can only be made for the entire
trunk.
Command Attributes
•Current – Lists the ports currently configured as members of a
static trunk.