42
[Sysname-irf-port4/1] port group interface fortygige 4/1/1
[Sysname-irf-port4/1] quit
# Bind FortyGigE 4/1/2 to IRF-port 4/2.
[Sysname] irf-port 4/2
[Sysname-irf-port4/2] port group interface fortygige 4/1/2
[Sysname-irf-port4/2] quit
# Bring up the physical interfaces and save the configuration.
[Sysname] interface range fortygige 4/1/1 to fortygige 4/1/2
[Sysname-if-range] undo shutdown
[Sysname-if-range] quit
[Sysname] save
# Activate the IRF port configuration.
[Sysname] irf-port-configuration active
Device D reboots to join the IRF fabric. A four-member IRF fabric is formed.
5.
Configure ND MAD on the IRF fabric:
# Enable the spanning tree feature globally. Map the ND MAD VLAN to MSTI 1 in the MST
region.
<Sysname> system-view
[Sysname] stp global enable
[Sysname] stp region-configuration
[Sysname-mst-region] region-name ndmad
[Sysname-mst-region] instance 1 vlan 3
[Sysname-mst-region] active region-configuration
[Sysname-mst-region] quit
# Configure the IRF fabric to change its bridge MAC address as soon as the address owner
leaves.
[Sysname] undo irf mac-address persistent
# Set the domain ID of the IRF fabric to 1.
[Sysname] irf domain 1
# Create VLAN 3, and add FortyGigE 1/1/3, FortyGigE 2/1/3, FortyGigE 3/1/3, and FortyGigE
4/1/3 to VLAN 3.
[Sysname] vlan 3
[Sysname-vlan3] port fortygige 1/1/3 fortygige 2/1/3 fortygige 3/1/3 fortygige 4/1/3
[Sysname-vlan3] quit
# Create VLAN-interface 3, assign it an IPv6 address, and enable ND MAD on the interface.
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] ipv6 address 2001::1 64
[Sysname-Vlan-interface3] mad nd enable
You need to assign a domain ID (range: 0-4294967295)
[Current domain is: 1]:
The assigned domain ID is: 1
6.
Configure Device E as the intermediate device:
CAUTION:
If the intermediate device is also in an IRF fabric, assign the two IRF fabrics different domain
IDs for correct split detection. False detection causes IRF split.
# Enable the spanning tree feature globally. Map the ND MAD VLAN to MSTI 1 in the MST
region.
