红帽全球峰会第 3 章 其他置备网络方法
本节包含有关可用于配置置备网络以组合路由 spine-leaf 的其他方法的信息。
3.1. VLAN 置备网络
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在本例中，director 通过 provisioning 网络部署新的 overcloud 节点，并在 L3 拓扑中使用 VLAN 隧道。如需更多信息，请参阅 图 3.1、"VLAN 置备网络拓扑"。如果使用 VLAN 置备网络，则 director DHCP 服务器可以将 DHCPOFFER 广播发送到任何叶。要建立此隧道，请在 Top-of-Rack (ToR) leaf 交换机之间中继 VLAN。在下图中，Ceph 存储和 Compute 节点中可以看见 StorageLeaf 网；NetworkLeaf 代表您要编写的任何网络的示例。
图 3.1. VLAN 置备网络拓扑
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