H3C Technologies H3C S12500 Series Switches - Manual (Page 43)

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{
Run the spanning tree feature between the IRF fabric and the intermediate device.
{
Enable the IRF fabric to change its bridge MAC address as soon as the master leaves.
{
Create an ARP MAD VLAN and assign the ports on the ARP MAD links to the VLAN.
{
If the intermediate device is in an IRF fabric, assign this fabric a different domain ID than the
ARP MAD-enabled fabric to avoid false detection of IRF split.
To configure ARP MAD:
Step Command Remarks
1. Enter system view. system-view N/A
2. Assign a domain ID to the IRF
fabric.
irf domain domain-id
By default, the domain ID of an
IRF fabric is 0.
3. Configure the IRF bridge
MAC address to change as
soon as the master leaves. undo irf mac-address persistent
By default, the IRF fabric's
bridge MAC address is retained
permanently even after the
master leaves.
4. Create a VLAN dedicated to
ARP MAD.
vlan vlan-id
The default VLAN on the device
is VLAN 1.
5. Return to system view. quit N/A
6. Enter Ethernet interface view
or interface range view.
• Enter interface range view:
{
Method 1:
interface range { interface-type
interface-number [ to
interface-type
interface-number ] } &<1-5>
{
Method 2:
interface range name name
[ interface { interface-type
interface-number [ to
interface-type
interface-number ] } &<1-5> ]
• Enter Ethernet interface view:
interface interface-type
interface-number
To assign a range of ports to the
ARP MAD VLAN, enter interface
range view.
To assign one port to the ARP
MAD VLAN, enter Ethernet
interface view.
7. Assign the port or port range
to the ARP MAD VLAN.
• Assign the port to the VLAN as an
access port:
port access vlan vlan-id
• Assign the port to the VLAN as a
trunk port:
port trunk permit vlan vlan-id
• Assign the port to the VLAN as a
hybrid port:
port hybrid vlan vlan-id { tagged |
untagged }
Choose one command
depending on the port type.
ARP MAD has no requirement
for the link type.
The default link type of a port is
access.
8. Return to system view. quit N/A
9. Enter VLAN interface view.
interface vlan-interface
interface-number
N/A