CONFIGURING THE SWITCH

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.

You can create up to six trunks on the switch, with up to four ports per trunk.

The ports at both ends of a connection must be configured as trunk ports.

When configuring static trunks on switches of different types, they must be compatible with the Cisco EtherChannel standard.

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.

Dynamically Configuring a Trunk

Command Usage

To avoid creating a loop in the network, be sure you enable LACP before connecting the ports, and also disconnect the ports before disabling LACP.

If the target switch has also enabled LACP on the connected ports, the trunk will be activated automatically.

active links

dynamically enabled

}

backup link

} configured

members

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SMC Networks SMC6724L3 manual Dynamically Configuring a Trunk