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DES-3550 Fast Ethernet Layer 2 Switch
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.
To configure port trunking, click on the Link Aggregation hyperlink in the Configuration folder to bring up the Port
Link Aggregation Group table:
Figure 6- 8. Port Link Aggregation Group Entries window
To configure port trunk groups, click the Add button to add a new trunk group and use the Link Aggregation Settings
menu (see example below) to set up trunk groups. To modify a port trunk group, click the Modify button corresponding to
the entry you wish to alter. To delete a port trunk group, click the corresponding
under the Delete heading in the
Current Link Aggregation Group Entries table.
Figure 6- 9. Link Aggregation Settings window – Add
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