User Manual
97
UniFi Controller User Guide
Ubiquiti Networks, Inc.
Chapter 11: UniFi Switch Details
Mirroring
 - Mirroring  This port’s network traffic will receive the 
mirrored traffic from the port listed below for analysis:
•  Mirroring Port  Enter the number of the port that 
will be mirrored.
•  Link Negotiation  The default is Auto, enabling 
Ethernet autonegotiation. This is the appropriate 
configuration for almost all circumstances. Never 
use Manual unless the device being connected 
to the port has also been set manually; if so, then 
switch to Manual to disable autonegotiation and 
enable manual configuration of duplex and speed:
•  Full Duplex  (Available for RJ45 ports only.) Ifthis 
option is enabled, the port will be set to full 
duplex. If disabled, it will be set to half duplex. 
Full-duplex transmission is enabled by default.
•  Link Speed 
Set the link speed of the interface 
as needed to match the device plugged into the 
port. For RJ45 ports, select 1000Mbps, 100Mbps, 
or 10Mbps. For SFP+ ports, select 10Gbps or 
1000Mbps. SFP ports must be set to 1000Mbps.
 - Isolation  Select this option to mark this port as an 
isolated port. Isolated ports cannot communicate 
directly with any other isolated port.
•  Apply  Click Apply to save changes.
•  Cancel  Click Cancel to discard changes.
Aggregate
 - Aggregate  A port channel, also known as a Link 
Aggregation Group (LAG), combines multiple links 
into a single logical link (single IP address) for load 
balancing and/or redundancy. If you select this 
option, then this port becomes the start port of the 
aggregate link.
•  Aggregate Ports  Enter the end port number of the 
LAG. (Two to four ports are permitted per LAG.)
•  Link Negotiation  The default is Auto, enabling 
Ethernet autonegotiation. This is the appropriate 
configuration for almost all circumstances. Never 
use Manual unless the device being connected 
to the port has also been set manually; if so, then 
switch to Manual to disable autonegotiation and 
enable manual configuration of duplex and speed:
•  Full Duplex  (Available for RJ45 ports only.) Ifthis 
option is enabled, the port will be set to full 
duplex. If disabled, it will be set to half duplex. 
Full-duplex transmission is enabled by default.
•  Link Speed  Set the link speed of the interface as 
need to match the device plugged into the port. 
For RJ45 ports, select 1000Mbps, 100Mbps, 
or 10Mbps. For SFP+ ports, select 10Gbps or 
1000Mbps. SFP ports must be set to 1000Mbps. 
•  Apply  Click Apply to save changes.
•  Cancel  Click Cancel to discard changes.










