3Com 4510G Configuration Manual page 1156

Warning: Renumbering the switch number may result in configuration change or loss.
Continue?[Y/N]:y
[Switch2] irf member 1 irf-port 1 port 2
[Switch2] irf member 1 irf-port 2 port 3
# Configure Switch 3.
<Switch3> system-view
[Switch3] irf member 1 renumber 3
Warning: Renumbering the switch number may result in configuration change or loss.
Continue?[Y/N]:y
[Switch3] irf member 1 irf-port 2 port 3
2) Power off the three devices. Connect them as shown in
on, and the IRF is formed.
Figure 26-9
25-19
with IRF cables. Power them