User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
Page 475 of 825
Ceragon Proprietary and Confidential
14.4
Configuring Link Aggregation (LAG) and LACP (Optional) (CLI)
Link aggregation (LAG) enables you to group several physical Ethernet or radio
interfaces into a single logical interface bound to a single MAC address. This
logical interface is known as a LAG group. Traffic sent to the interfaces in a LAG
group is distributed by means of a load balancing mechanism. IP-20 uses a
distribution function of up to Layer 4 in order to generate the most efficient
distribution among the LAG physical ports.
This section explains how to configure LAG and includes the following topics:
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Editing and Deleting a LAG Group (CLI)
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Enabling and Disabling the LAG Group Shutdown in Case of Degradation Event
Option (CLI)
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Configuring Enhanced LAG Distribution (CLI)
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Displaying LACP Parameters and Statistics (CLI)
14.4.1
LAG Overview (CLI)
Link aggregation (LAG) enables you to group several physical Ethernet or radio
interfaces into a single logical interface bound to a single MAC address. This
logical interface is known as a LAG group. Traffic sent to the interfaces in a LAG
group is distributed by means of a load balancing mechanism. IP-20 uses a
distribution function of up to Layer 4 in order to generate the most efficient
distribution among the LAG physical ports.
LAG can be used to provide interface redundancy, both on the same card (line
protection) and on separate cards (line protection and equipment protection).
LAG can also be used to aggregate several interfaces in order to create a wider
(aggregate) link. For example, LAG can be used to create a 4 Gbps channel.
You can create up to four LAG groups.
The following restrictions exist with respect to LAG groups:
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Only physical interfaces (including radio interfaces), not logical interfaces, can
belong to a LAG group.
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Interfaces can only be added to the LAG group if no services or service points
are attached to the interface.
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Any classification rules defined for the interface are overridden by the
classification rules defined for the LAG group.
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When removing an interface from a LAG group, the removed interface is
assigned the default interface values.
There are no restrictions on the number of interfaces that can be included in a
LAG. It is recommended, but not required, that each interface in the LAG have the
same parameters (e.g., speed, duplex mode).
