Aggregating links in dynamic mode, Selecting a reference port, Figure 2 – H3C Technologies H3C SecPath F1000-E User Manual
Page 21
5
Figure 2 Set the aggregation state of a member port in a static aggregation group
No
Port attribute/class 2 configurations
same as the reference port?
More candidate ports than max.
number of Selected ports?
Is the port up?
Is there any hardware restriction?
Port number as low as to set
the port in the Selected state?
Set the aggregation state
of a member port
Set the port in the Selected state
Set the port in the
Unselected state
Yes
Yes
No
Yes
No
Yes
No
Yes
No
NOTE:
•
To ensure stable aggregation state and service continuity, avoid changing port attributes or class-two
configurations on any member port.
•
If a static aggregation group has reached the limit on Selected ports, any port joins the group is placed
in the Unselected state to avoid traffic interruption on the current Selected ports. Avoid this situation,
however, because it may cause the aggregation state of a port to change after a reboot.
Aggregating Links in Dynamic Mode
LACP is automatically enabled on all member ports in a dynamic aggregation group. The protocol
automatically maintains the aggregation state of ports.
The dynamic link aggregation procedure comprises:
•
•
Setting the aggregation state of each member port
Selecting a reference port
The local system (the actor) and the remote system (the partner) negotiate a reference port as follows: