Aggregation States Of Member Ports In An Aggregation Group; Operational Key; Configuration Types - H3C S7500X Series Configuration Manual

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. This state is
peculiar to the member ports of edge aggregate interfaces. A member port is placed in
Individual state if it has not received LACPDUs before the first expiration of the LACP timeout
timer after either of the following event occurs:
The aggregate interface is configured as an edge aggregate interface.
The member port goes down and then comes up after it is placed in Unselected or Selected
state.
For more information about edge aggregate interfaces, see

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 have the same operational key.

Configuration types

Port configurations include attribute configurations and protocol configurations. Attribute
configurations of a link aggregation member port affect its aggregation state.
•
Attribute configurations—To become a Selected port, a member port must have the same
attribute configurations as the aggregate interface.
configurations.
For a link aggregation, attribute configurations are configurable only on the aggregate interface
and are automatically synchronized to all member ports. You cannot configure attribute
configurations on a member interface until it is removed from the link aggregation group. The
configurations that have been synchronized from the aggregate interface are retained on the
member ports even after the aggregate interface is deleted.
If an attribute setting on the aggregate interface fails to be synchronized to a Selected member
port, the port might change to the Unselected state.
Table 1 Attribute configurations
Feature
Port isolation
QinQ
VLAN mapping
VLAN
Considerations
Indicates whether the port has joined an isolation group and which isolation
group the port belongs to.
QinQ status (enabled/disabled), TPID for VLAN tags, and VLAN
transparent transmission. For information about QinQ, see "Configuring
QinQ."
VLAN mapping configured on the port. For more information about VLAN
mapping, see "Configuring VLAN mapping."
VLAN attribute configurations include the following:
•
Permitted VLAN IDs.
•
PVID.
•
Link type (trunk, hybrid, or access).
2
"Edge aggregate
Table 1 describes the attribute
interface."