红帽全球峰会1.8. 模块层 2 (ML2) 类型和机制驱动程序兼容性
在规划 Red Hat OpenStack Platform (RHOSP) 数据网络时，请参考下表，以确定每个 Modular Layer 2 (ML2) 机制驱动程序支持的网络类型。
| 机制驱动程序 | 支持这些类型驱动程序 | ||||
| Flat | GRE | VLAN | VXLAN | GENEVE | |
| Open Virtual Network (OVN) | 是 | 否 | 是 | 是 [1] | 是 |
| Open vSwitch (OVS) | 是 | 是 | 是 | 是 | 否 |
[1] ML2/OVN VXLAN 支持为每个网络限制为 4096 个网络和 4096 端口。另外，依赖入口端口的 ACL 不适用于 ML2/OVN 和 VXLAN，因为入口端口没有被传递。
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