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Trunks
Trunks allow for the aggregation of multiple full-duplex Ethernet links into a single logical link. Network
devices treat the aggregation as if it were a single link, which increases fault tolerance and provides
load sharing capability. You assign the trunk VLAN membership after a trunk is created.
A trunk interface can be either static or dynamic, but not both.
■ Dynamic trunks use the Link Aggregation Control Protocol (LACP, IEEE standard 802.3ad).
An LACP-enabled port automatically detects the presence of other aggregation-capable
network devices in the system and exchanges Link Aggregation Control Protocol Data Units
(LACPDUs) with links in the trunk. The PDUs contain information about each link and enable
the trunk to maintain them.
■ Static trunks are assigned to a bundle by the administrator. Members do not exchange
LACPDUs. A static trunk does not require a partner system to be able to aggregate its member
ports.
All members of a trunk must be either static or dynamic.
Trunk Configuration and Membership
Link Aggregation/Trunking enables one or more full duplex (FDX) Ethernet links to be aggregated
together to form a link aggregation group, such that the networking device can treat this trunk as if it
were a single link.
To display the Trunk Configuration page, click Trunk > Trunk Configuration in the navigation pane.
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