H3C Technologies H3C S12500 Series Switches - Manual (Page 125)

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Load sharing criteria for link aggregation groups
In a link aggregation group, traffic can be load-shared across the selected member ports based on a set
of criteria, depending on your configuration.
You can choose one of the following criteria or any combination for load sharing:
• Per-flow load sharing—Classifies traffic flows by source or destination MAC address, source or
destination port number, ingress port, source or destination IP address, or MPLS label, or any
combination of them, and forwards packets of the same flow on the same link.
• Per-packet load sharing—Load balances traffic across member links by packet.
Ethernet link aggregation configuration task list
Task Remarks
Configuring an
aggregation
group Configuring a static aggregation group
Select either task.
Configuring a dynamic aggregation group
Configuring an
aggregate
interface
Configuring the description of an aggregate
interface/subinterface
Optional.
Configuring the MTU of a Layer 3 aggregate
interface/subinterface
Optional.
Enabling link state trapping for an aggregate interface Optional.
Limiting the number of Selected ports for an aggregation
group
Optional.
Shutting down an aggregate interface Optional.
Restoring the default settings for an aggregate interface Optional.
Configuring load sharing for link aggregation groups Optional.
Enabling link-aggregation traffic redirection Optional.
Enabling link aggregation enhancement in IRF mode Optional.
Configuring an aggregation group
You can choose to create a Layer 2 or Layer 3 link aggregation group depending on the ports to be
aggregated:
• To aggregate Layer 2 Ethernet interfaces, create a Layer 2 link aggregation group;
• To aggregate Layer 3 Ethernet interfaces, create a Layer 3 link aggregation group.
Configuration guidelines
You cannot assign a port to a Layer 2 aggregation group if any of the features listed in Table 16 is
configured on the port.