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20 [0].\n\nFor vxlan project networks, it is possible to specify a range\nof multicast addresses for use with VXLAN tunnem broadcast traffic.\nIn the case where a range is specified a unique multicast group\nis assigned by neutron to each vxlan network, and once\nigmp_max_memberships for a host, vxlanm interfaces will silently\nnot join the multicast group.\n\nThis results in instances being unable to DHCP or ARP, and errors\nin the neutron agent log [1].\n\nThis patch increases the default value to 1024 which should be\nsufficient for all but the very largest deployments.\n\n[0] https://sysctl-explorer.net/net/ipv4/igmp_max_memberships/\n[1] http://paste.openstack.org/show/796504\n\nChange-Id: I24a0ca3001098b278d341f710ca2e4f00dc3e09a\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/openstack-ansible-openstack_hosts/commit/4553e329fd63e161508e004e156f0cf36e4410e4"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in 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