3Com Switch 7750 Configuration Guide Guide

Link Aggregation Configuration Example 187
Configuration procedure
The following only lists the configuration on Switch A; you must perform the
similar configuration on Switch B to implement link aggregation.
1 Adopt the manual aggregation mode
# Create manual aggregation group 1.
<SW7750> system-view
System View: return to User View with Ctrl+Z
[SW7750] link-aggregation group 1 mode manual
# Add Ethernet1/0/1 through Ethernet1/0/3 to aggregation group 1.
[SW7750] interface ethernet1/0/1
[SW7750-Ethernet1/0/1] port link-aggregation group 1
[SW7750-Ethernet1/0/1] interface ethernet1/0/2
[SW7750-Ethernet1/0/2] port link-aggregation group 1
[SW7750-Ethernet1/0/2] interface ethernet1/0/3
[SW7750-Ethernet1/0/3] port link-aggregation group 1
2 Adopt the static LACP aggregation mode
# Create static aggregation group 1.
[SW7750] link-aggregation group 1 mode static
# Add Ethernet1/0/1 through Ethernet1/0/3 to aggregation group 1.
[SW7750] interface ethernet1/0/1
[SW7750-Ethernet1/0/1] port link-aggregation group 1
[SW7750-Ethernet1/0/1] interface ethernet0/2
[SW7750-Ethernet1/0/2] port link-aggregation group 1
[SW7750-Ethernet1/0/2] interface ethernet0/3
3 Adopt the dynamic LACP aggregation mode
# Enable LACP on Ethernet1/0/1 through Ethernet1/0/3.
<SW7750> system-view
[SW7750] interface Ethernet1/0/1
[SW7750-Ethernet1/0/1] lacp enable
[SW7750-Ethernet1/0/1] interface Ethernet1/0/2
[SW7750-Ethernet1/0/2] lacp enable
[SW7750-Ethernet1/0/2] interface Ethernet1/0/3
[SW7750-Ethernet1/0/3] lacp enable
Note that the three LACP-enabled ports can be aggregated into a dynamic
aggregation group to implement load sharing only when they have the same basic
configuration, rate and duplex mode.