HPE FlexFabric 12900E Series Configuration Manual page 28

Category
BFD MAD VLAN and
feature compatibility
MAD IP address
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
Restrictions and guidelines
BFD MAD links to the BFD MAD VLAN.
On the IRF fabric, create a VLAN interface for the BFD MAD VLAN.

•
Make sure the IRF fabrics on the network use different BFD MAD VLANs.
•
Make sure the BFD MAD VLAN contains only ports on the BFD MAD
links. Exclude a port from the BFD MAD VLAN if the port is not on the
BFD MAD link. For example, if you have assigned the port to all VLANs
port trunk permit vlan all
by using the
undo port trunk permit
BFD MAD VLAN.
Do not use the BFD MAD VLAN and its member ports for any purpose other
than configuring BFD MAD.
•
Configure only the
commands on the BFD MAD-enabled VLAN interface. If you configure
other features, both BFD MAD and other features on the interface might
run incorrectly.
•
Disable the spanning tree feature on any Layer 2 Ethernet ports in the
BFD MAD VLAN. The MAD feature is mutually exclusive with the
spanning tree feature.
•
To guarantee performance of the BFD MAD VLAN, make sure the
following subinterfaces do not use a subinterface number the same as
the VLAN interface number:
Layer 3 Ethernet subinterfaces.

Layer 3 aggregate subinterfaces.

•
To avoid problems, only use the
configure IP addresses on the BFD MAD-enabled VLAN interface. Do
not configure an IP address by using the
configure a VRRP virtual address on the BFD MAD-enabled VLAN
interface.
•
Make sure all the MAD IP addresses are on the same subnet.
Restrictions and guidelines
Make sure the Layer 3 aggregate interface operates in static aggregation
mode.
•
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
Configure only the
on the BFD MAD-enabled interface. If you configure other features, both BFD
MAD and other features on the interface might run incorrectly.
•
To avoid problems, only use the
24
command to exclude the port from the
mad bfd enable and
mad ip address
ip address
port trunk permit vlan all
command to exclude that port
mad ip address
and
mad ip address
command, use the
mad ip address
command to
command or
command,
commands
command to