Web Management Guide-R02

Table Of Contents
Chapter 4
| Interface Configuration
Trunk Configuration
– 130 –
of the first member port (see the “show lacp internal” command in the CLI Reference
Guide).
Parameters
These parameters are displayed:
Configure Aggregator
Admin Key – LACP administration key is used to identify a specific link
aggregation group (LAG) during local LACP setup on the switch.
(Range: 0-65535)
If the port channel admin key is not set when a channel group is formed (i.e., it
has the null value of 0), the port channel operational key is set to the same
value as the first member port operational key (see Configure Aggregation Port -
Actor/Partner). Note that when the LAG is no longer used, the port channel
operational key is reset to 0.
Timeout Mode – The timeout to wait for the next LACP data unit (LACPDU):
Long Timeout – Specifies a slow timeout of 90 seconds. (This is the default
setting.)
Short Timeout – Specifies a fast timeout of 3 seconds.
The timeout is set in the LACP timeout bit of the Actor State field in transmitted
LACPDUs. When the partner switch receives an LACPDU set with a short
timeout from the actor switch, the partner adjusts the transmit LACPDU
interval to 1 second. When it receives an LACPDU set with a long timeout from
the actor, it adjusts the transmit LACPDU interval to 30 seconds.
If the actor does not receive an LACPDU from its partner before the configured
timeout expires, the partner port information will be deleted from the LACP
group.
When a dynamic port-channel member leaves a port-channel, the default
timeout value will be restored on that port.
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.