Quick Reference Guide

316 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring a trunk group
11
Configuring a trunk group
Follow the steps given below to configure a trunk group.
1. Disconnect the cables from those ports on both systems that will be connected by the trunk
group. Do not configure the trunk groups with the cables connected.
NOTE
If you connect the cables before configuring the trunk groups and then reboot, the traffic on
the ports can create a spanning tree loop.
2. Configure the trunk group on one of the two Layer 2 Switches or Layer 3 Switches involved in
the configuration.
NOTE
Downtime is incurred when adding a new port to a trunk group. It is suggested that you
schedule the addition of ports to a trunk group to minimize downtime and its impact to the
production network.
3. Save the configuration changes to the startup-config file.
4. Dynamically place the new trunk configuration into effect by entering the trunk deploy
command at the global CONFIG level of the CLI.
5. If the device at the other end of the trunk group is another Layer 2 Switch or Layer 3 Switch,
repeat Steps 2 – 4 for the other device.
6. When the trunk groups on both devices are operational, reconnect the cables to those ports
that are now configured as trunk groups, starting with the first port (lead port) of each trunk
group.
7. To verify the link is operational, use the show trunk command.
CLI syntax
The following is the CLI syntax for creating a trunk group. Configuration examples are shown in later
sections of this chapter.
Syntax: [no] trunk ethernet <primary-portnum> to <portnum> [ethernet <primary-portnum> to
<portnum>]
Syntax: trunk deploy
Each ethernet parameter introduces a port group. Enter the slot number (if applicable) and the port
number of the Ethernet port.
The <primary-portnum> to <portnum> parameters specify a port group. Notice that each port
group must begin with a primary port. After you enter this command, the primary port of the first
port group specified (which must be the group with the lower port numbers) becomes the primary
port for the entire trunk group.
To configure a trunk group consisting of two groups of two ports each, enter commands such as the
following.