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L2 Features
The L2 Feature tab exhibits complete standard-based
Layer 2 switching capabilities, including: Link Aggregation,
802.1D single Spanning Tree Protocol, 802.1w Rapid
Spanning Tree Protocol, 802.1s Multiple Spanning Tree
Protocol, MAC Address Table, Internet Group Management
Protocol (IGMP) Snooping, Port Mirroring, 802.1ab Link
Layer Discovery Protocol (LLDP), and Multicast Listener
Discovery(MLD) snooping. Utilize these features to
conguretheSwitchtoyourpreferences.
Link Aggregation
A Link Aggregation Group (LAG) optimizes port usage by
linking a group of ports together to form a single, logical,
higher-bandwidth link. Aggregating ports multiplies the
bandwidthandincreasesportexibilityfortheSwitch.
Link Aggregation is most commonly used to link a
bandwidth intensive network device (or devices), such as
a server, to the backbone of a network.
The participating ports are called Members of a port
trunk group. Since all ports of the trunk group must
beconguredtooperateinthesamemanner,the
congurationoftheoneportofthetrunkgroupisapplied
to all ports of the trunk group. Thus, you will only need
tocongureoneofanyoftheportsinatrunkgroup.
Aspecicdatacommunicationpacketwillalwaysbe
transmitted over the same port in a trunk group. This
ensures the delivery of individual frames of a data
communication packet will be received in the correct
order.ThetrafcloadoftheLAGwillbebalancedamong
the ports according to Aggregate Arithmetic. If the
connectionsofoneorseveralportsarebroken,thetrafc
of these ports will be transmitted on the normal ports, so
as to guarantee the connection reliability.
