25
Configuring BFD MAD
When you use BFD MAD, follow these guidelines:
Category Restrictions
and
guidelines
BFD MAD VLAN
•
Do not enable BFD MAD on VLAN-interface 1.
•
If you are using an intermediate device, assign the ports of BFD MAD
links to the BFD MAD VLAN on the device.
•
The IRF fabrics in a network must use different BFD MAD VLANs.
BFD MAD VLAN and
feature compatibility
•
Do not use the BFD MAD VLAN for any other purpose. No Layer 2 or
Layer 3 features, including ARP and LACP, can work on the BFD
MAD-enabled VLAN interface or any port in the VLAN. If you configure
any other feature on the VLAN, neither the configured feature nor the
BFD MAD function can work correctly.
•
Disable the spanning tree feature on any Layer 2 Ethernet ports in the
BFD MAD VLAN. The MAD function is mutually exclusive with the
spanning tree feature.
•
Do not bind a BFD MAD-enabled VLAN interface to any VPN instance.
The MAD function is mutually exclusive with VPN.
MAD IP address
•
To avoid problems, only use the mad ip address command to configure
IP addresses on the BFD MAD-enabled VLAN interface. Do not
configure an IP address with the
ip address
command or configure a
VRRP virtual address on the BFD MAD-enabled VLAN interface.
•
All MAD IP addresses on the BFD MAD-enabled VLAN interface must be
on the same subnet.
To configure BFD MAD:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create a VLAN dedicated to
BFD MAD.
vlan
vlan-id
The default VLAN on the switch
is VLAN 1.
3.
Return to system view.
quit
N/A
4.
Enter Ethernet interface
view or interface range
view.
•
Enter interface range view:
{
Approach 1:
interface range
{
interface-type
interface-number
[
to
interface-type
interface-number
] } &<1-5>
{
Approach 2:
interface range name
name
[
interface
{ int
erface-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 BFD MAD VLAN, enter
interface range view.
To assign one port to the BFD
MAD VLAN, enter Ethernet
interface view.
