3Com Switch 8800 Advanced Software V5 Configuration Guide

Configuring Link Aggregation 79
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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 Name for
a Link Aggregation
Group
Follow these steps to configure a name for an aggregation group:
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CAUTION: When configuring a name for a link aggregation group, make sure the
ID of the link aggregation group is available. You can obtain the ID of a link
aggregation group using the display link-aggregation summary command or
the display link-aggregation interface command.
Configuring a Service
Loop Group
Follow these steps to configure a service loop group:
When a service loop group contains only one port, you can remove the port only
by removing the group.
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■ There can only be up to one service loop group for each service loop group
type.
■ There can only be up to eight Ethernet ports valid for each service loop group
type.
■ An Ethernet port can be added to a service loop group only when STP is not
enabled on it.
■ You can change the type of an existing service loop group. The operation fails
if it is currently referenced by a module or the service loop group contains ports
whose attributes conflict with the intended service type.
■ You can use the undo link-aggregation group command to remove an
service loop group. The operation fails if it is currently referenced by a module.
To do... Use the command... Remarks
Enter system view system-view --
Configure a name for a link
aggregation group
link-aggregation group
agg-id description agg-name
Required
Not configured by default.
To do... Use the command... Remarks
Enter system view system-view --
Create a manual aggregation
group
link-aggregation group
agg-id mode manual
Required
Specify the aggregation group
as a service loop group
link-aggregation group
agg-id service-type { { ipv6 |
ipv6mc } * | tunnel }
Required
Enter Ethernet interface view interface interface-type
interface-number
--
Assign the Ethernet port to
the service loop group
port link-aggregation
group agg-id
Required