H3C Technologies H3C S5560 Series Switches - Manual (Page 57)

23
The port rate of an aggregate interface equals the total rate of its Selected member ports. Its duplex
mode is the same as that of the Selected member ports. For more information about the states of member
ports in an aggregation group, see "
Aggregation states of member ports in an aggregation group ."
Aggregation states of member ports in an aggregation group
A member port in an aggregation group can be in any of the following aggregation states:
• Selected—A Selected port can forward traffic.
• Unselected—An Unselected port cannot forward traffic.
• Individual—An Individual port can forward traffic as a normal physical port. A port is placed in the
Individual state when the following conditions are met:
{
The corresponding aggregate interface is configured as an edge aggregate interface.
{
The port does not receive LACPDUs from its peer port.
Operational key
When aggregating ports, the system automatically assigns each port an operational key based on port
information, such as port rate and duplex mode. Any change to this information triggers a recalculation
of the operational key.
In an aggregation group, all Selected ports are assigned the same operational key.
Configuration types
Every configuration setting on a port might affect its aggregation state. Port configurations include the
following types:
• Attribute configurations—To become a Selected port, a member port must have the same attribute
configurations as the aggregate interface.
Table 3 describes the attribute configurations.
Attribute configurations made on an aggregate interface are automatically synchronized to all
member ports. These configurations are retained on the member ports even after the aggregate
interface is removed.
Any attribute configuration change on a member port might affect the aggregation states and
running services of the member ports. The system displays a warning message every time you try
to change an attribute configuration setting on a member port.
Table 3 Attribute configurations
Feature Considerations
Port isolation
Indicates whether the port has joined an isolation group, and which isolation
group the port belongs to.
QinQ
QinQ enable state (enabled/disabled), TPID for VLAN tags, and VLAN
transparent transmission. For information about QinQ, see "Configuring
QinQ."
VLAN mapping
Different types of VLAN mapping configured on the port. For more
information about VLAN mapping, see "Configuring VLAN mapping."