Disabling remote ARP or ND learning for VXLANs
By default, the device learns ARP or 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 ARP or ND learning when the controller and VTEPs are synchronizing entries. After the entry synchronization is completed, enable remote ARP or ND learning.
As a best practice, disable remote ARP or ND learning for VXLANs only when the controller and VTEPs are synchronizing entries.
To disable remote ARP or ND learning for VXLANs:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Disable remote ARP learning for VXLANs. | vxlan tunnel arp-learning disable | By default, remote ARP learning is enabled for VXLANs. |
3. Disable remote ND learning. | vxlan tunnel nd-learning disable | By default, remote ND learning is enabled for VXLANs. |