Chapter 17 Link Aggregation
GS1920 Series User’s Guide
142
The following table describes the labels in this screen.
17.5
Technical Reference
This section provides technical background information on the topics discussed in this chapter.
17.5.1
Static Trunking Example
This example shows you how to create a static port trunk group for ports 2-5.
1
Make your physical connections - make sure that the ports that you want to belong to the trunk
group are connected to the same destination. The following figure shows ports 2-5 on switch A
connected to switch B.
Table 59
Advanced Application > Link Aggregation > Link Aggregation Setting > LACP
LABEL
DESCRIPTION
Link
Aggregation
Control
Protocol
Note: Do not configure this screen unless you want to enable dynamic link aggregation.
Active
Select this checkbox to enable Link Aggregation Control Protocol (LACP).
System
Priority
LACP system priority is a number between 1 and 65,535. The switch with the lowest system
priority (and lowest port number if system priority is the same) becomes the LACP “server”.
The LACP “server” controls the operation of LACP setup. Enter a number to set the priority of
an active port using Link Aggregation Control Protocol (LACP). The smaller the number, the
higher the priority level.
Group ID
The field identifies the link aggregation group, that is, one logical link containing multiple
ports.
LACP Active
Select this option to enable LACP for a trunk.
Port
This field displays the port number.
*
Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this row first
to set the common settings and then make adjustments on a port-by-port basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
LACP Timeout
Timeout is the time interval between the individual port exchanges of LACP packets in order
to check that the peer port in the trunk group is still up. If a port does not respond after three
tries, then it is deemed to be “down” and is removed from the trunk. Set a short timeout
(one second) for busy trunked links to ensure that disabled ports are removed from the trunk
group as soon as possible.
Select either 1 second or 30 seconds.
Apply
Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Cancel
Click Cancel to begin configuring this screen afresh.
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