Redundancy
128
8.1
Link aggregation
RM Web L3P
Release
4.1
03/08
8.1 Link aggregation
Any combination of twisted pair and LWL cables can be used as the connec-
tion lines of a trunk. The only requirement is that for all the connections, the
transmission speed and the duplex settings of the related ports are the same.
You can use link aggregation to combine up to 8 (optimally up to 4) connec-
tion lines between devices into a trunk. These connections increase the data
rate, and in the case of a connection breaking down, the remaining connec-
tions take over the entire data transmission. A maximum of 7 trunks can exit
a device.
8.1.1 Configuring the link aggregation
Note: A link aggregation always has two devices.
Therefore, you configure the link aggregation on each of the two devices
involved.
Among the devices involved in a link aggregation, you define that device
that has the most devices between itself and the device to which the
configuration PC is connected. You begin the configuration at this device
- otherwise the LACP can block ports and disconnect devices from the
network.
During the configuration phase, you only connect one connection line
between the devices. This is to avoid loops.
On the first device to be configured, you select the Redundancy:Link
Aggregation dialog (see fig. .40).
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