Link Aggregation; Lacp Port Settings - D-Link DES-1228/ME User Manual

DES-1228/ME Layer 2 Fast Ethernet Managed Switch
802.1p default priority configurations must be identical. Port locking, port mirroring and 802.1X must not be enabled on the trunk
group. Further, the aggregated links must all be of the same speed and should be configured as full-duplex.
The Master Port of the group is to be configured by the user, and all configuration options, including the VLAN configuration that
can be applied to the Master Port, are applied to the entire link aggregation group.
Load balancing is automatically applied to the ports in the aggregated group, and a link failure within the group causes the
network traffic to be directed to the remaining links in the group.
The Spanning Tree Protocol will treat a link aggregation group as a single link, on the switch level. On the port level, the STP will
use the port parameters of the Master Port in the calculation of port cost and in determining the state of the link aggregation group.
If two redundant link aggregation groups are configured on the Switch, STP will block one entire group, in the same way STP will
block a single port that has a redundant link.

Link Aggregation

To configure port trunking, click L2 Features > Trunking > Link Aggregation to bring up the following window:
Figure 7- 11. Link Aggregation window
To configure port trunk groups, click the Add button to add a new trunk group and use the Port Trunking Configuration menu
(see example below) to set up trunk groups. To modify a port trunk group, click the hyperlinked group number corresponding to
the entry you wish to alter. To delete a port trunk group, click the corresponding under the Delete heading in the Link
Aggregation Group Entries table (at the bottom of the Link Aggregation window).
Figure 7- 12. Link Aggregation Settings window – Add
To return to the Link Aggregration Group Entries table click the hyperlinked, Show All Link Aggregration Group Entries at the
bottom of the window.

LACP Port Settings

To configure Link Aggregation Control Protocol port trunking, click L2 Features > Trunking > LACP Port Settings to display
the Port Link Aggregation Group table:
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