Link Aggregation Overview
11-8 Configuring Link Aggregation
Static Port Assignment
Static port assignment allows you to assign ports to a LAG when the partner device does not
support LACP, but does support another proprietary form of link aggregation. To assign a static
port, specify the LAG port ID, the admin key value for this LAG, and the ports to be assigned. If
you do not specify an admin key value, a key will be assigned according to the specified
aggregator. For example, a key of 4 would be assigned to lag.0.4.
Flexible Link Aggregation Groups
Starting with firmware v6.61, you can define the maximum number of Link Aggregation Groups
(LAGs) that can be supported on the switch, although the maximum number of physical ports on
the switch that can be aggregated remains at 48 ports. Use the command set lacp groups to set the
maximum number of LAGs to 6, 12. or 24. Since the maximum number of physical aggregateable
ports remains 48, if you set the maximum number of LAGs to:
• 6, each LAG can have up to 8 associated physical ports. This is the system default.
• 12, each LAG can have up to 4 associated physical ports.
• 24, each LAG can have up to 2 associated physical ports.
Changing the maximum number of LAGs requires a system reset and the LACP configuration will
be returned to default values. You are prompted to confirm the change before the system executes
the command.
Administrative State A number of port level administrative states can be set for both the actor and partner
ports. The following port administrative states are set by default:
• lacpactive - Transmitting LACP PDUs is enabled.
• lacptimeout - Transmitting LACP PDUs every 30 seconds. If this state is
disabled, LACP PDUs are transmitted every 1 second. Note that the actor and
partner LACP timeout values must agree.
• lacpagg - Aggregation on this port is enabled.
• lacpsync - Transition to synchronization state is allowed.
• lacpcollect - Transition to collection state is allowed.
• lacpdist - Transition to distribution state is allowed.
• lacpdef - Transition to defaulted state is allowed.
• lacpexpire - Transition to expired state is allowed.
It is recommended that these default states not be changed unless you know what
you are doing. Contact Enterasys customer support should you need assistance
modifying port level administrative states.
Partner Default
System ID
A default partner system ID can be set. This is a default MAC address for the system
partner.
LACP PDU
processing
(Optional) LACP PDU processing can be enabled or disabled for this port.
Table 11-2 LAG Port Parameters (continued)
Term Definition
Note: Flexible link aggregation groups are not supported on the I-Series platforms. Up to 6 LAGs,
with a maximum of 8 associated physical ports per LAG, can be configured.
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