Mad Enable - H3C S6520-SI Series Command Reference Manual

When you configure BFD MAD on a Layer 3 aggregate interface, follow these restrictions and
guidelines:
Category
BFD MAD-enabled Layer 3
aggregate interface
BFD MAD VLAN
BFD MAD-enabled Layer 3
aggregate interface and
feature compatibility
MAD IP address
Examples
# Enable BFD MAD on VLAN-interface 3.
<Sysname> system-view
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad bfd enable

mad enable

Use mad enable to enable LACP MAD.
Use undo mad enable to disable LACP MAD.
Syntax
mad enable
undo mad enable
Default
LACP MAD is disabled.
Views
Aggregate interface view
Restrictions and guidelines
•
Make sure the Layer 3 aggregate interface operates in static
aggregation mode.
•
Make sure the member ports in the aggregation group do not exceed the
maximum number of Selected ports allowed for an aggregation group. If
the number of member ports exceeds the maximum number of Selected
ports, some member ports cannot become Selected. BFD MAD will be
unable to work correctly and its state will change to Faulty.
•
On the intermediate device (if any), assign the ports on the BFD MAD
links to the same VLAN. Do not assign the ports to an aggregate
interface. If the ports are hybrid ports, make sure these ports are
untagged members of their PVIDs.
•
If the intermediate device acts as a BFD MAD intermediate device for
multiple IRF fabrics, assign different BFD MAD VLANs to the IRF fabrics.
•
Do not use the BFD MAD VLAN on the intermediate device for any
purposes other than BFD MAD.
•
Make sure the BFD MAD VLAN on the intermediate device contains only
ports on the BFD MAD links. Exclude a port from the BFD MAD VLAN if
that port is not on a BFD MAD link. If you have assigned that port to all
VLANs by using the
use the undo port trunk permit
from the BFD MAD VLAN.
mad bfd enable
Use only the
the BFD MAD-enabled interface. If you configure other features, both BFD
MAD and other features on the interface might run incorrectly.
•
To avoid network issues, only use the
configure IP addresses on the BFD MAD-enabled interface. Do not
configure an IP address by using the
configure a VRRP virtual address on the BFD MAD-enabled interface.
•
Make sure all the MAD IP addresses are on the same subnet.
21
port trunk permit vlan all
command to exclude that port
mad ip address
and
mad ip address
ip address
command,
commands on
command to
command or