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a60fb26
(Get the code!)
Due to Neutron with l2pop implementing arp proxy when creating vxlan interfaces, there is a potential for the ip neighbor table on all nodes (especially infra nodes) to grow beyond the default thresholds. This will manifest itself as 'no buffer space available' when Neutron attempts to issue 'ip neigh add' commands. The threshold had to be increased to avoid issues.
Relevant Neutron bug: https:/