Igmp Host Enable - HP 6127XLG Series Command Reference Manual

Parameters
group-address: Specifies a multicast address in the range of 224.0.1.0 to 239.255.255.255.
source source-address: Specifies a source IP address for multicast VXLAN packets.
Usage guidelines
VXLAN flood traffic includes multicast, broadcast, and unknown unicast frames. The following are
methods available for the VTEP to flood traffic to remote sites:
Unicast mode—Also called head-end replication. The VTEP replicates the flood frame, and then
•
sends one replica to the destination IP address of each VXLAN tunnel in the VXLAN.
• Multicast mode—Also called tandem replication. The VTEP sends the flood frame in a multicast
VXLAN packet destined for the VXLAN multicast group address. Transport network devices
replicate and forward the packet to remote VTEPs based on their multicast forwarding entries.
Flood proxy mode—The VTEP sends the flood frame in a VXLAN packet to a flood proxy server. The
•
flood proxy server replicates and forwards the packet to each remote VTEP through VXLAN tunnels.
To reduce traffic sent to the transport network, use multicast mode if the network has dense flood traffic
or many VTEPs.
For multicast-mode VXLANs, transport network devices must maintain multicast group and forwarding
information. To reduce the multicast forwarding entries maintained by transport network devices, assign
a multicast group address to multiple VXLANs. The VTEP separates traffic between VXLANs by VXLAN
IDs.
NOTE:
For VXLANs that use the same multicast group address, you must configure the same source IP address for
their multicast VXLAN packets.
If you execute the group command multiple times, the most recent configuration takes effect.
Examples
# Set the multicast group address to 233.1.1.1 for flood traffic in VXLAN 100. Set the source IP address
to 2.1.1.1 for multicast VXLAN packets.
<Sysname> system-view
[Sysname] vsi aaa
[Sysname-vsi-aaa] vxlan 100
[Sysname-vsi-aaa-vxlan-100] group 233.1.1.1 source 2.1.1.1
Related commands

igmp host enable

igmp host enable
Use igmp host enable to enable the IGMP host function on an interface.
Use undo igmp host enable to disable the IGMP host function on an interface.
Syntax
igmp host enable
undo igmp host enable
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