我故意拔掉主机与交换机之间的一根 FC电缆，从而中断其中一条访问路径。
I purposely interrupt one of the access paths by pulling off an FC cable between the host and switch.
有些交换机默认启用SNMP。
一条IB电缆连接到IB交换机。
步骤1：配置Cisco交换机。
图1给出我们的配置中的交换机编号。
Figure 1 shows the numbering of the switches in our configuration.
每个交换机支持2 - 30控制器。
交换机提示的时候，重新启动交换机。
虚拟网络使用虚拟交换机。
使用SFP +线缆连接交换机和主机。
两条IB电缆连接到 IB交换机。
qsfp线缆应当用于连接交换机和主机。
QSFP cables should be used to connect to the switch and the hosts.
这些命令把交换机上的端口1配置为执行聚合。
不同型号的网络交换机可连接不同数量的设备。
Different models of network switches support differing Numbers of connected devices.
这些多端口网桥叫交换式集线器或以太网交换机。
These multiport bridges were called switching hubs or Ethernet switches.
中心控制室，控制交换机和控制器等设备的工作。
This center controls the work of controllers and switchboards etc.
连接到IB交换机的IB电缆数与HCA数量相同。
The same number of IB cables as HCAs are connected to the IB switch.
配置、检验和检修思科交换机的trunking。
Configure, verify, and troubleshoot trunking on Cisco switches.
和集线器一样，网络交换机的以太网实现是最常见的。
As with hubs, Ethernet implementations of network switches are the most common.
虚拟网络设施的关键开发之一就是虚拟交换机的开发。
One of the key developments of virtualized networking infrastructure is the development of the virtual switch.
交换机配置完成之后，可以在配置上运行完备性检查。
After the switch configuration is complete, you can run a few sanity checks on your configuration.
在更小型的集群中，管理机架还需要两个同样的交换机。
In smaller clusters, the management rack also requires two of the same switches.
通常使用SAN交换机来连接服务器和存储控制器。
SAN switches are typically used to connect the servers to the storage controller.
网络交换机负责将以太网数据帧写入特定的LAN网段。
A network switch is responsible for writing frames of Ethernet data to a LAN segment.
我将网络主机映射到交换机，因此我对所有事情了如指掌。
I have a map of my network hosts to switches so I know where everything is.
MAC洪泛是一种旨在网络交换机的ARP缓存中毒技术。
MAC Flooding is an ARP Cache Poisoning technique aimed at network switches.
这个示例并不演示如何配置跨越树及其所需的交换机优先级。
The example does not demonstrate how to configure spanning trees and switch priority for spanning trees that may be required.
但据我所知，没有商家实施了上述方案：他们改为采用交换机。
However, as far as I know, no vendors implement the above scheme; they assume the presence of switches instead.
如果您希望实践这个示例，那么应该使自己的交换机符合以下配置。
If you want to follow the example, then you should configure your switches to match the configuration that follows.
网络拓扑采用星形结构，所有机架向后连接到管理机架的主交换机。
The network topology takes a star shape, with all racks connecting back to a main switch in the management rack.
如果交换机已经配置了希望使用的VLAN，那么可以跳过这个步骤。
You may choose to skip this step if the switches are already properly configured with the VLANs that you want to use.
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