EGig Smart Switch eG8G, Quick Installation Manual, Page: 14 / 29

12
Configuring Port Trunks
Ports can be combined into an aggregate link to increase the bandwidth of a network connection or
to ensure fault recovery. You can configure trunks between any two ES4008A switches. The ports
on this switch can be grouped into a trunk consisting of two, three or four ports, creating an
aggregate bandwidth up to 4, 6, or 8 Gbps. Besides balancing the load across each port in the
trunk, the additional ports provide redundancy by taking over the load if another port in the trunk
fails. However, before making any physical connections between devices, use the Port Trunking
Configuration menu to specify the trunk on the devices at both ends. When using a port trunk,
remember that:
• Ports can only be assigned to one trunk.
• The ports at both ends of a connection must be configured as trunk ports.
• The ports at both ends of a trunk must be configured in an identical manner, including
communication mode, and VLAN assignments.
• All the ports in a trunk have to be treated as a whole when moved from/to, added or deleted from
a VLAN.
• The trunk must be enabled prior to connecting any cable between the switches to avoid creating
a loop.