3Com Switch 8800 Advanced Software V5 Configuration Guide

78 CHAPTER 9: LINK AGGREGATION CONFIGURATION
ports, its group type changes to manual with LACP disabled on its member
ports; if not, its group type directly changes to manual.
■ An aggregation group cannot include ports with static MAC addresses,
802.1x-enabled ports, MAC address authentication-enabled ports, or POS
interfaces. Besides, ports operating as upstream ports of isolation groups
cannot be added to manual or static aggregation groups.
■ After you assign an LACP-enabled port to a manual aggregation group, its
LACP will be disabled.
■ You can remove all ports in a manual aggregation group by removing the
group.
■ If this group contains only one port, you can remove the port only by removing
the group.
n
To guarantee a successful aggregation, ensure that the ports at the two ends of
each link to be aggregated are consistent in selected/unselected state.
Configuring a Static
LACP Link Aggregation
Group
Follow these steps to configure a static aggregation group:
Note that:
■ You can create a static aggregation group by changing the type of an existing
link aggregation group. An LACP aggregation group with ports contained in it
can only be changed to a static LACP aggregation group. In this case, ports in it
are still LACP-enabled. For a manual aggregation group containing no port,
you can change it to a static LACP aggregation group.
■ Changing LACP priority globally or on a port may change the state
(selected/unselected) of the ports in a static LACP aggregation group.
■ An aggregation group cannot include ports with static MAC addresses,
802.1x-enabled ports, MAC address authentication-enabled ports, or POS
interfaces. Besides, ports operating as upstream ports of isolation groups
cannot be added to manual or static aggregation groups.
■ After you assign an LACP-disabled port to a static LACP aggregation group, it
becomes LACP-enabled.
To do... Use the command... Remarks
Enter system view system-view --
Configure the system LACP
priority
lacp system-priority
system-priority
Optional
32768 by default.
Create a static LACP
aggregation group
link-aggregation group
agg-id mode static
Required
Enter Ethernet interface view interface interface-type
interface-number
--
Configure the port LACP
priority
lacp port-priority
port-priority-value
Optional
32768 by default.
Assign the Ethernet port to
the aggregation group
port link-aggregation
group agg-id
Required