19
•
Connect every downstream device to each IRF member device and assign these links to one link
aggregation group.
•
The enhanced IRF mode can be enabled directly in standalone mode.
•
In IRF mode, follow these guidelines to enable the enhanced IRF mode:
{
If neither Layer 3 (route mode) Ethernet interfaces nor VPLS and MAC-in-MAC instances exist,
you can enable enhanced IRF mode directly.
{
If Layer 3 Ethernet interfaces exist, you must first change them to Layer 2 (bridge mode) Ethernet
interfaces at the prompt.
{
If VPLS or MAC-in-MAC instances exist but no Layer 3 Ethernet interfaces exist, you must first
reboot the device at the prompt.
For more information about Layer 3 Ethernet interfaces, see
Interface Configuration Guide
. For
more information about VPLS, see
MPLS Configuration Guide
. For more information about
MAC-in-MAC, see
Layer 2
—
LAN Switching Configuration Guide
.
{
Use the
save
command to save the configuration after you enable the enhanced IRF mode.
•
To successfully disable enhanced IRF mode with the
undo irf mode enhanced
command after you
enable it in IRF mode, make sure that the IRF fabric has no more than two member devices and each
member device has only one IRF port to which one or more physical ports are bound.
•
To successfully merge devices into an IRF fabric, make sure that the enhanced IRF mode is enabled
or disabled on all the devices. The devices that use different enhanced IRF mode settings cannot
form an IRF fabric.
•
If the enhanced IRF mode is used, you must reboot all but one member device to complete IRF
merge.
After the enhanced IRF mode is enabled, you cannot create Layer 3 Ethernet interfaces or subinterfaces
or Layer 3 aggregate interfaces or subinterfaces.
Examples
# Enable enhanced IRF mode in standalone mode.
<Sysname> system-view
[Sysname] irf member 2
[Sysname] irf mode enhanced
[Sysname] save
[Sysname] chassis convert mode irf
The device will switch to IRF mode and reboot. You are recommended to save the current
running configuration and specify the configuration file for the next startup. Continue?
[Y/N]:y
Do you want to convert the content of the next startup configuration file flash:/startup.cfg
to make it available in IRF mode? [Y/N]:y
Please wait...
Saving the converted configuration file to the main board succeeded.
# Enable enhanced IRF mode in IRF mode when both Layer 3 Ethernet interfaces and VPLS instances
exist.
<Sysname> system-view
[Sysname] irf mode enhanced
Mode switch failed because the enhanced IRF mode does not support the Layer 3 Ethernet
interface.
[Sysname] display ip interface brief
*down: administratively down
