User's Manual

9
EdgeSwitch User Guide
Ubiquiti Networks, Inc.
Chapter 3: Dashboard
Mode (Status) Active mode is displayed in green. For RJ45
ports, Auto is enabled by default, and it applies only to
speed and duplex, not PoE. For SFP/SFP+ ports, Autodetect
is enabled by default. The EdgeSwitch automatically
detects the speed of the inserted SFP/SFP+ module.
The EdgeSwitch automatically negotiates transmission
parameters, such as speed and duplex, with its
counterpart. In this process, the networked devices
first share their capabilities and then choose the fastest
transmission mode they both support.
To manually specify the maximum transmission link
speed and duplex mode, select the appropriate option
(options vary depending on the model). Full-duplex mode
allows communication in both directions simultaneously.
Half-duplex mode allows communication in one direction
at a time, alternating between transmission and reception.
To achieve full performance with extra-long Ethernet
cables, ensure that you use Cat 6-qualified cables and
interconnects.
LAG 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. You can have up to 8 ports in a LAG, and you
can create up to 32 LAGs per EdgeSwitch. If a port is part
of a LAG, its LAG number is displayed.
Click the Add LAG
LAG
icon to add the port to a LAG.
You have the following options:
• (Add) Click an existing LAG to add the port to it.
• (Create) Click the Create icon to create a new LAG.
Go to the Create or Edit a LAG section below for more
information.
• (Edit) If a LAG is already selected, click the Edit icon
to configure LAG settings. Go to the Create or Edit a LAG
section below for more information.
• (Delete) Move the cursor over the current LAG .
When the check mark becomes an X, click it to remove
the port from the LAG.
Create or Edit a LAG
To edit or create a new LAG, configure these options:
New LAG Settings
• Static LAG Dynamic LAGs use the Link Aggregation
Control Protocol (LACP); all devices must use LACP. If any
device does not support LACP, then you can configure a
static LAG. If enabled, this LAG will be static and will not
use LACP.
• Link Trap If enabled, a notification (SNMP trap) will be
sent if the status of the link changes.
• Enable STP Enabled by default. Ethernet networks
cannot have multiple active paths between switches
(excluding aggregation such as LAG), as this
causes a switching loop: broadcast and multicast
traffic is amplified and repeated in a never-ending
loop, disrupting the network. Spanning Tree
prevents switching loops and allows for redundant
interconnections between switches. Interfaces with
redundant paths are put into STP blocking mode,
leaving the port down unless the current best active
path fails.
Deselecting this option will disable all versions of
spanning tree; however, this is not recommended, as it
can leave the network susceptible to being taken down
by an inadvertently created switching loop.
• DHCP Snooping DHCP snooping monitors DHCP
messages between clients and servers and builds a
database of trusted sources. If enabled, only DHCP
server messages from trusted sources will be allowed.
• Load Balance Mode Load balancing distributes traffic
load while preserving the packet order per flow. The
algorithm can consider different packet attributes to
determine the appropriate outgoing physical port to
use. Select the appropriate option:
• Source/Destination MAC, VLAN, Ethertype, Incoming Port
(default)
• Destination MAC, VLAN, Ethertype, Incoming Port
• Source/Destination MAC, VLAN, Ethertype,
Incoming Port
• Source IP and Source TCP/UDP Port Fields
• Destination IP and Destination TCP/UDP Port Fields
• Source/Destination IP and TCP/UDP Port Fields