Asus GigaX2008EX - Manual (Page 28)

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GigaX2008EX L2 Managed Switch User Manual
4.5 Bridge
The Bridge page group contains most layer 2 configurations, like link aggregation,
mirroring etc..
4.5.1 Link Aggregation
The page configures the link aggregation group (port trunking). The switch can
have 15 link aggregation groups.
Show Trunk: Select “Add a new Trunk” for a new created group. Or select an
existed group to display on the following fields and port icons.
Name: the group name.
Trunk ID: a number to identify the trunk group besides the group name.
Remove Trunk: Remove the selected trunk.
Port Icons: these port icons are listed in a way like the front panel. You have to
click on the icon the select the group members. The port can be removed from
the group by clicking the selected port again.
Click OK to make the setting send to the switch (HTTP server). Click Reload to
refresh the settings to current value. To make the configuration effective, go to Save
Configuration page, then click Save.
You have to check the runtime link speed and duplex mode to make sure the
trunk is physically active. Go to Physical Interface and check the link mode in the
runtime status window for the trunk ports. If all the trunk members are in the same
speed and full duplex mode, then the trunk group is set up successfully. If one of
the members is not in the same speed or full duplex mode, the trunk is not set
correctly. Check the link partner and change the settings to have the same speed
and full duplex mode for all the members of your trunk group.
• All the ports in the link aggregation group MUST operate in full-
duplex mode at the same speed.
• All the ports in the link aggregation group MUST be configured in
auto-negotiation mode or full duplex mode. This configuration will
make the full duplex link possible. If you set the ports in full duplex
force mode, then the link partner MUST have the same setting.
Otherwise the link aggregation could operate abnormally.
• All the ports in the link aggregation group MUST have the same
VLAN setting.
• All the ports in the link aggregation group are treated as a single
logical link. That is, if any member changes an attribute, the
others will change too. For example, a trunk group consists of
port 1 and 2. If the VLAN of port 1 changes, the VLAN of port 2
also changes with port 1.