Link Aggregation Mode; Defining A Link Aggregation Group; Adding A Link Aggregation Group - Symbol ES3000 Manual

For spanning tree protocol (STP), link aggregation groups function as a single
virtual port. Any changes to one port in a group are applied to all ports in the
group.

7.2.1 Link Aggregation Mode

The LACP provides dynamic and static modes of link aggregation.
The dynamic mode allows the switch to negotiate with partner interfaces to determine whether they
can form a mutual link. In dynamic mode a link aggregation group can be either active and passive. A
group in the active mode initiates the negotiation, while one in the passive mode waits for
negotiation from the partner side. A successful negotiation requires at least one end of the
aggregation link to be in active mode. If both ends are in passive mode, negotiation never begins.
In the static (or manual) mode, the LACP forces all ports to join the link aggregation group without
LACP negotiation.

7.2.2 Defining a Link Aggregation Group

Use the Add Group page (Ports > Link Aggregation > Add Group) to add new link aggregation groups,
and modify or delete existing groups.

7.2.2.1 Adding a Link Aggregation Group

To set up a new link aggregation group, supply the following information on the Add Group page:
• Group Admin Key: A unique key that identifies the link aggregation group. The Spanning
Tree and Port Configuration pages use this key to display the group a port belongs to. The
value is an integer in the range 0-65535.
• Group Mode: The LACP aggregation mode. The administrator can select LACP Active, LACP
Passive, or Manual. See "Link Aggregation Mode" on page 3. The default is Manual.
• Group Member: The ports to select for group membership. Click Apply to create the group.
If the selected ports do not form a valid group, the web interface generates an error message
and denies the creation of the group. See "Implementing Aggregate Links" on page 2 for a
description of the prerequisites for creating a valid group.
Once the administrator has created groups, they appear on the display at the bottom of the Add Group
page, where the administrator can view the key, mode, and port list for the group. If the mode is LACP
Active or LACP Passive, click the LACP Status button for a group to view detailed status information.
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Link Aggregation