15
Step Command
Remarks
6.
Assign a multicast group
address for flood traffic,
and specify a source IP
address for multicast
VXLAN packets.
group
group-address
source
source-address
By default, a VXLAN uses unicast mode for
flood traffic. No multicast group address or
source IP address is specified for multicast
VXLAN packets.
You must assign all VTEPs in a
multicast-mode VXLAN to the same
multicast group.
For traffic to be forwarded correctly, you
must use the source IP address of an up
VXLAN tunnel as the source IP address for
multicast VXLAN packets. If the VXLAN has
multiple VXLAN tunnels, the tunnels must
use the same source IP address.
For VXLANs that use the same multicast
group address, you must configure the
same source IP address for their multicast
VXLAN packets.
7.
Enter the view of the
interface that provides the
source IP address for
multicast VXLAN packets.
interface interface-type
interface-number
The
source
source-address
option in the
group
command specifies the source IP
address of multicast VXLAN packets.
8.
Enable the IGMP host
function.
igmp host enable
By default, the IGMP host function is
disabled on an interface.
The IGMP host function enables the
interface to send IGMP reports in response
to IGMP queries before it can receive traffic
from the multicast group.
Confining unknown-unicast floods to the local site
By default, the VTEP floods unknown unicast frames received from the local site to the following
interfaces in the frame's VXLAN:
•
All site-facing interfaces except for the incoming interface.
•
All VXLAN tunnel interfaces.
To confine unknown-unicast floods to site-facing interfaces for a VXLAN:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter VSI view.
vsi
vsi-name
N/A
3.
Disable the VSI to flood
unknown unicast traffic to
VXLAN tunnel interfaces.
flooding disable
By default, unknown unicast traffic
is flooded to all interfaces in the
VXLAN, except for the incoming
interface.
