Cambium Networks PTP 820 Series, User Manual, Page: 242 / 1149

Chapter 3: Configuration Guide Configuring Link Aggregation (LAG) and LACP
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Port speed: 1 GE
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Media Type: RJ45
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Auto Negotiation: On
To change these parameters, go to the Physical Interfaces page. See Configuring Ethernet Interfaces .
Note: Both Eth5 and Eth6 can be configured to either 1 GE or 2.5 GE. The other PTP 820F Ethernet
ports support 1 GE only.
If you configured the port as an RFU interface, make sure to set the Radio Unit parameters as necessary.
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Configuring Cascading Interfaces (Optional).
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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).
Note
To add or remove an Ethernet interface to a LAG group, the interface must be in an administrative
state of “down”. This restriction does not apply to radio interfaces. For instructions on setting the
administrative state of an interface, see Enabling the Interfaces (Interface Manager) .
PTP 820 supports LACP, which expands the capabilities of static LAG and provides interoperability with third-party
equipment that uses LACP. LACP improves the communication between LAG members. This improves error
detection capabilities in situations such as improper LAG configuration or improper cabling. It also enables the LAG
to detect uni-directional failure and remove the link from the LAG, preventing packet loss.
LACP is enabled as part of the LAG configuration process. It should only be used if the LAG is in a link with another
LACP-enabled LAG.
Note
LACP is not supported with unit redundancy. For unit redundancy, a special, limited implementation
is configured on the logical interface level. See Configuring Unit Redundancy for PTP 820G.
LACP can only be used with Ethernet interfaces.
LACP cannot be used with Enhanced LAG Distribution or with the LAG Group Shutdown in Case of
Degradation Event feature..
Configuring a LAG Group
Creating a LAG Group
To create a LAG group:
1. Select Ethernet > Interfaces > Groups > LAG. The LAG page opens.