R3166-R3206-HP High-End Firewalls High Availability Configuration Guide-6PW101

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same is created automatically. For example, when you create interface Bridge-aggregation 1, Layer 2
aggregation group 1 is created.
To a Layer 2 aggregation group, you can assign only Layer 2 Ethernet interfaces; to a Layer 3
aggregation group, only Layer 3 Ethernet interfaces.
NOTE:
• On a Layer 3 aggregate interface, you can create subinterfaces. These subinterfaces are logical
interfaces that operate at the network layer. They can receive VLAN tagged packets for their Layer 3
aggregate interface.
• The rate of an aggregate interface equals the total rate of its member ports in selected state and 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, refer to Aggregation states of member ports in an
aggr
egation group.
Aggregation states of member ports in an aggregation group
A member port in an aggregation group can be in either of the following two aggregation states:
• Selected: a selected port can forward user traffic.
• Unselected: an unselected port cannot forward user traffic.
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 this operational key.
In an aggregation group, all selected member ports are assigned the same operational key.
Configuration classes
Every configuration setting on a member port in a link aggregation group may affect the aggregation
state of the port in the group more or less. They are divided into three configuration classes:
• Port attribute configurations, including port rate, duplex mode, and link status (up/down), which
are the most basic port configurations.
• Class-two configurations, as described in Table 6. A m
ember port can be placed in selected state
only if it has the same class-two configurations as the aggregate interface.
Table 10 Class-two configurations
Item Considerations
VLAN
Permitted VLAN IDs, PVID, link type (trunk, hybrid, or access), IP subnet-based
VLAN configuration, protocol-based VLAN configuration, VLAN tagging mode
MAC address learning
MAC address learning capability, MAC address learning limit, forwarding of
frames with unknown destination MAC addresses after the MAC address
learning limit is reached