Vxlan Tunnel Nd-Learning Disable; Vxlan Udp-Port - H3C CR16000-F Command Reference Manual

Default
Remote-MAC address learning is enabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
When network attacks occur, use this command to prevent the device from learning incorrect remote
MAC addresses in the data plane.
Examples
# Disable remote-MAC address learning.
<Sysname> system-view
[Sysname] vxlan tunnel mac-learning disable

vxlan tunnel nd-learning disable

Use vxlan tunnel nd-learning disable to disable remote ND learning for VXLANs.
Use undo vxlan tunnel nd-learning disable to enable remote ND learning for VXLANs.
Syntax
vxlan tunnel nd-learning disable
undo vxlan tunnel nd-learning disable
Default
Remote ND learning is enabled for VXLANs.
Views
System view
Predefined user roles
network-admin
Usage guidelines
By default, the device learns ND information of remote VMs from packets received on VXLAN tunnel
interfaces. To save resources on VTEPs in an SDN transport network, you can temporarily disable
remote ND learning when the controller and VTEPs are synchronizing entries. After the entry
synchronization is completed, use the undo vxlan tunnel nd-learning disable command
to enable remote ND learning.
As a best practice, disable remote ND learning for VXLANs only when the controller and VTEPs are
synchronizing entries.
Examples
# Disable remote ND learning for VXLANs.
<Sysname> system
[Sysname] vxlan tunnel nd-learning disable

vxlan udp-port

Use vxlan udp-port to set the destination UDP port number for VXLAN packets.
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