H3C Technologies H3C S7500E Series Switches - Manual (Page 125)

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Ethernet Link Aggregation Configuration
When configuring Ethernet link aggregation, go to these sections for information you are interested in:
Overview
Ethernet Link Aggregation Configuration Task List
Configuring an Aggregation Group
Configuring an Aggregate Interface
Configuring Load Sharing for Link Aggregation Groups
Displaying and Maintaining Ethernet Link Aggregation
Ethernet Link Aggregation Configuration Examples
The S7500E series Ethernet switches are distributed devices that support Intelligent Resilient
Framework (IRF). Two S7500E series switches can form a distributed IRF. If an S7500E series switch
is not in any IRF, it operates as a distributed device; if an S7500E series switch is in an IRF, it operates
as a distributed IRF. For more information about IRF, refer to IRF Configuration in the IRF
Configuration Guide .
Overview
Ethernet link aggregation, most often simply called link aggregation, aggregates multiple physical
Ethernet links into one logical link to increase link bandwidth beyond the limits of any one single link.
This logical link is called an aggregate link. It allows for link redundancy because the member physical
links can dynamically back up one another.
As shown in Figure 11-1 , Device A and Device B are connected with three physical Ethernet links.
These physical Ethernet links are aggregated into an aggregate link, Link aggregation 1. The
bandwidth of this aggregate link can be as high as the total bandwidth of these three physical Ethernet
links.
Figure 11-1 Diagram for Ethernet link aggregation