Cambium Networks PTP 820 Series, User Manual, Page: 741 / 1149

Chapter 15: Configuration Guide (CLI) Configuring Link Aggregation (LAG) and LACP (CLI)
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You can create up to four LAG groups. The following restrictions exist with respect to LAG groups:
•
Only physical interfaces (including radio interfaces), not logical interfaces, can belong to a LAG group.
•
Cascading interfaces cannot belong to a LAG group. See Configuring Cascading Interfaces (Optional) (CLI) .
•
Interfaces can only be added to the LAG group if no services or service points are attached to the interface.
•
Any classification rules defined for the interface are overridden by the classification rules defined for the LAG
group.
•
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 t o radio interfaces. For instructions on setting the
administrative state of an interface, see Enabling the Interfaces (Interface Manager) (CLI)
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
the PTP 820 Split Mount (CLI).
•
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 (CLI)
To create a LAG group, go to interface view for the first interface you want to assign to the LAG and enter the
following command:
eth type eth [x/x]> static-lag add lagid <lag1|lag2|lag3|lag4>
Repeat this process for each interface you want to assign to the LAG.
To remove an Ethernet member interface from a LAG, go to interface view for the LAG and enter the following
command:
eth group [lagx]> port static-lag remove member interface eth slot <slot>
port <port>