Link Aggregation Modes - HP 830 Series Configuration Manual

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Operational key
When aggregating ports, link aggregation control automatically assigns each port an operational key
based on port attributes, including the port rate, duplex mode and link state configuration.
In an aggregation group, all Selected ports are assigned the same operational key.
Class-two configurations
The contents of class-two configurations are listed in
different from the aggregate interface in the class-two configurations cannot be a Selected port.
Table 60 Class-two configurations
Type
Port isolation
QinQ
VLAN
MAC address learning
Some configurations are called class-one configurations. Such configurations, for example, MSTP, can
be configured on aggregate interfaces and member ports but are not considered during operational key
calculation.
The change of a class-two configuration setting may affect the select state of link aggregation member
ports and the ongoing service. To prevent unconsidered change, a message warning of the hazard will
be displayed when you attempt to change a class-two setting, upon which you can decide whether to
continue your change operation.

Link aggregation modes

Depending on the link aggregation procedure, link aggregation operates in one of the following modes:
Static aggregation mode
Dynamic aggregation mode
Static aggregation mode
LACP is disabled on the member ports in a static aggregation group. In a static aggregation group, the
system sets a port to Selected or Unselected state by the following rules:
Select a port as the reference port from the ports that are in up state and with the same class-two
configurations as the corresponding aggregate interface. These ports are selected in the order of
full duplex/high speed, full duplex/low speed, half duplex/high speed, and half duplex/low
speed, with full duplex/high speed being the most preferred. If two ports with the same duplex
mode/speed pair are present, the one with the lower port number wins.
Consider the ports in up state with the same port attributes and class-two configurations as the
reference port as candidate selected ports, and set all others in Unselected state.
Considerations
Whether a port has joined an isolation group, and the isolation group to which the
port belongs.
QinQ enable state (enable/disable), TPID values in VLAN tags, outer VLAN tags to
be added, inner-to-outer VLAN priority mappings, inner-to-outer VLAN tag mappings,
inner VLAN ID substitution mappings.
Permitted VLAN IDs, default VLAN, link type (trunk, hybrid, or access), IP
subnet-based VLAN configuration, protocol-based VLAN configuration, tag mode.
MAC address learning capability, MAC address learning limit, forwarding of frames
with unknown destination MAC addresses after the upper limit of the MAC address
table is reached.
181
Table
60. In an aggregation group, a member port

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