Huawei Quidway S6500 Series Operation Manual page 58

Operation Manual - Port
Quidway S6500 Series Ethernet Switches
aggregated, so that the two parties can agree on adding/deleting which port into/from a
certain dynamic aggregation group.
Operation key is a configuration set generated by LACP based on port setting (speed,
duplex mode, basic configuration and management key). When LACP is enabled, the
management key of a dynamic aggregation port is 0 by default, but the management
key of a static aggregation port consists with the aggregation group ID. For a dynamic
aggregation group, all member ports must have the same operation key, while for a
manual or static aggregation group, only the active member ports must have the same
operation key.
2.1.3 Types of Link Aggregation
Link aggregation can be classified as manual aggregation, dynamic LACP aggregation
and static LACP aggregation.
I. Manual aggregation and static LACP aggregation
Both manual aggregation and static LACP aggregation require manual configuration of
aggregation groups and prohibit automatic adding or deleting of member ports by the
system. A manual or static LACP aggregation group must contain at least one member
port, and you must delete the aggregation group, instead of the port, if the group
contains only one port. At a manual aggregation port, LACP is disabled and you are not
allowed to enable it. LACP is enabled at a static aggregation port. When a static
aggregation group is deleted, its member ports form one or several dynamic LACP
aggregation groups and LACP remains enabled on them. You are not allowed to
disable LACP protocol at a static aggregation group.
In a manual or static LACP aggregation group, its ports may be in active or inactive
state and only the active ports can transceive user service packets, but not inactive
ports. The active port with the minimum port number serves as the master port, while
others as sub-ports.
In a manual aggregation group, the system sets the ports to active or inactive state
based on these rules:
Based on the descending order of priority levels from full duplex/high speed, to full
duplex/low-speed, to half duplex/high speed and till half duplex/low speed, the
system sets the port with the highest priority to active state, and others to inactive
state.
The system sets to inactive state the ports which cannot aggregate with the active
port with minimum port number, due to hardware limit, for example, trans-board
aggregation unavailable.
The system sets to inactive state the ports with basic configurations different from
that of the active port with minimum port number.
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2-2
Chapter 2 Link Aggregation Configuration