3Com Switch 4800G 24-Port Configuration Manual - page 20
1-15
To do…
Use the command…
Remarks
Bind physical IRF ports to an IRF
port, and enable IRF on the
current device
irf member member-id irf-port
irf-port-id port port-list
Required
By default, no IRF port is
configured.
z
The above configuration takes effect after the reboot of the device.
z
An IRF port that is bound with multiple physical IRF ports is an aggregation IRF port, which
increases the bandwidth and reliability on the IRF port. If you specify multiple physical IRF ports
with the port-list argument, you can configure an aggregation IRF port. You can configure at most
two physical IRF ports as an aggregation IRF port for a Switch 4800G series switch, and you can
only aggregate physical IRF ports 1 and 2, and physical IRF ports 3 and 4.
z
The irf-port-id argument represents the IRF port number. The port-list argument represents the
physical IRF port number. For the correspondence of IRF ports, refer to
Correspondence between
an IRF port and a physical IRF port
.
z
When you insert a one-port interface module into the slot on the rear panel, if the interface module
is in slot 1, the port on it will be numbered 1; and if the interface module is in slot 2, the port on it will
be numbered 3.
Setting a Member ID for a Device
The member ID of a device defaults to 1. During the establishment of an IRF virtual device, when the
devices that form the IRF have duplicated member IDs, the member ID of the master is decided first,
and then the member IDs of slaves are decided by the member ID collision processing mechanism.
After the IRF virtual device is established, if the newly added device and another member have
duplicated IDs, the IRF system assigns the smallest available ID for the new member. You can also set
the member IDs according to network planning.
For a device that is already in an IRF virtual device, you can use commands in
Table 1-1
to modify the
member ID of the device, and this modification will be effective after the reboot of the device.
For a device that is not in an IRF virtual device, you are recommended to set its member ID in the
following way:
1) Plan the member IDs in advance. You can view the member IDs of an IRF virtual device, and find
out an unused ID for the new device.
2) Log in to the device to be added into the IRF virtual device, and change its member ID to the
unused ID found out in step 1.
3) Save the current configuration. Power off the device, connect the device with IRF cables and
power it on. Use the configuration introduced in this section to enable IRF on the device and add it
into the IRF virtual device.