Brocade TurboIron 24X Series Configuration Guide - Manual (Page 368)

334 Brocade TurboIron 24X Series Configuration Guide
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Trunk group overview
• Make sure the device on the other end of the trunk link can support the same number of ports
in the link. For example, if you configure a three-port trunk group on the device and the other
end is a different type of switch, make sure the other switch can support a three-port trunk
group.
• All the ports must be connected to the same device at the other end.
• All trunk group member properties must match the lead port of the trunk group with respect to
the following parameters:
• port tag type (untagged or tagged port)
• statically configured port speed and duplex
• QoS priority
To change port parameters, you must change them on the primary port. The software
automatically applies the changes to the other ports in the trunk group.
Trunk group configuration examples
Figure 30 shows some examples of valid 2-port trunk group links between devices. The trunk
groups in this example are switch trunk groups between two devices. Ports in a valid 2-port trunk
group on one device are connected to two ports in a valid 2-port trunk group on another device. The
same rules apply to 3-port, 4-port, etc., trunk groups.
FIGURE 30 Examples of 2-port and 3-port trunk groups
Flexible trunk group membership
This section describes flexible trunk group membership on the devices.
Trunking is supported on non-consecutive ports in a module. For example, you can configure ports
e 4, 6, and 7 (excluding e 5) together on a module as a trunk group. In releases prior to the above,
the ports in a trunk group must be consecutive. This feature is supported on static and LACP trunk
ports, as well as GbE and 10-GbE ports.
Viewing the first and last ports in a trunk group
Output for many of the show commands will show the first and last port in a trunk as
FirstPort-LastPort, if the ports are consecutive, and FirstPort*LastPort if the ports are not
consecutive.
With the configuration above, output from the show mac command resembles the following, which
shows the first and last ports.
TurboIron#show mac
Total active entries from all ports = 1
MAC-Address Port Type Index
0000.0010.c201 7*21 Dynamic 2920
For a trunk group with members 7 to 9, the output from the show mac command resembles the
following.
TurboIron#show mac
Total active entries from all ports = 1
MAC-Address Port Type Index
0000.0010.c201 7-9 Dynamic 2920