168 CHAPTER 19: LINK AGGREGATION CONFIGURATION
■ To make an aggregation group to function properly, make sure the selected
states of the ports on the both sides of the same link are the same.
Configuring a Static
LACP Link Aggregation
Group
Follow these steps to configure a static aggregation group:
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■ You can create a static aggregation group by changing the type of an existing
manual link aggregation group that contains no port.
■ An aggregation group cannot contain the following ports: RRPP-enabled ports,
ports configured with static MAC addresses or black hole MAC addresses,
voice VLAN-enabled ports, or 802.1x-enabled ports.
■ After you remove a static aggregation group, all the ports in the group are
dismissed from it, and LACP is disabled on the ports.
■ For a static LACP aggregation group containing only one port, the only way to
remove the port from the aggregation group is to remove the aggregation
group.
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When making configuration, be aware that after a load-balancing aggregation
group changes to a non-load balancing group due to resources exhaustion, either
of the following may happen
■ Forwarding anomaly resulted from inconsistency of the two ends in the
number of selected ports.
■ Some protocols such as GVRP malfunction because the state of the remote
port connected to the master port is unselected.
Configuring an
Aggregation Group
Name
Follow these steps to configure a name for an aggregation group:
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.
Changing system LACP
priority can affect the
selected/unselected state of
the ports in the group.
Create a static LACP
aggregation group
link-aggregation group
agg-id mode static
Required
Enter Ethernet port view interface interface-type
interface-number
--
Configure the port LACP
priority
lacp port-priority
port-priority
Optional
32768 by default.
Changing port LACP priority
can affect the
selected/unselected state of
the ports in the group.
Assign the Ethernet port to
the aggregation group
port link-aggregation
group agg-id
Required
To do… Use the command… Remarks
Enter system view system-view --
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