LevelOne GEL-5261, User Manual

Page: 121 / 570

Chapter 4
| Interface Configuration
Trunk Configuration
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When a dynamic port-channel is torn down, the configured timeout value will be
retained. When the dynamic port-channel is constructed again, that timeout
value will be used.
◆ System Priority – LACP system priority is used to determine link aggregation
group (LAG) membership, and to identify this device to other switches during
LAG negotiations.
◆ System MAC Address – The device MAC address assigned to each trunk.
Configure Aggregation Port - General
◆ Port – Port identifier. (Range: 1-52)
◆ LACP Status – Enables or disables LACP on a port.
Configure Aggregation Port - Actor/Partner
◆ Port – Port number. (Range: 1-52)
◆ Admin Key – The LACP administration key must be set to the same value for
ports that belong to the same LAG. (Range: 0-65535; Default – Actor: 1,
Partner: 0)
Once the remote side of a link has been established, LACP operational settings
are already in use on that side. Configuring LACP settings for the partner only
applies to its administrative state, not its operational state.
Note: Configuring the partner admin-key does not affect remote or local switch
operation. The local switch just records the partner admin-key for user reference.
By default, the actor’s operational key is determined by port's link speed
(1000f - 4, 100f - 3, 10f - 2), and copied to the admin key.
◆ System Priority – LACP system priority is used to determine link aggregation
group (LAG) membership, and to identify this device to other switches during
LAG negotiations. (Range: 0-65535; Default: 32768)
System pr iority is combined with the switch’s MAC address to form the LAG
identifier. This identifier is used to indicate a specific LAG during LACP
negotiations with other systems.
◆
Port Priority – If a link goes down, LACP port priority is used to select a backup
link. (Range: 0-65535; Default: 32768)
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Setting a lower value indicates a higher effective priority.
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If an active port link goes down, the backup port with the highest priority is
selected to replace the downed link. However, if two or more ports have the
same LACP port priority, the port with the lowest physical port number will
be selected as the backup port.