The link layer provides the physical interface to the communication medium (such as an Ethernet device).
链路层(link layer)提供了通信介质的物理接口(例如以太网设备)。
When creating network architecture for your blades, you must have one physical interface for each Cisco switch you want to use on the chassis.
在为刀片服务器创建网络体系结构时，对于机架上希望使用的每个Cisco交换机，必须有一个物理接口。
So, although you can change the media speed and duplex on the physical interface, you set up the IP address and subnet on the logical interface.
因此，尽管可以在物理接口上修改介质速度和双工模式，但是要在逻辑接口上设置IP地址和子网。
If an IP was accidentally configured on this physical interface and it was part of a SEA configuration, the SEA may fail to configure as the physical device is already in use.
如果在这个物理接口上配置了IP，而且它属于SEA配置，SEA的配置就可能失败，因为这个物理设备已经在使用了。
Employing photons as probes, Raman spectroscopy is potentially an ideal technique for studying chemical structures and physical interface phenomena.
拉曼光谱以光子作为探针，是研究表面物理、化学结构和性质的理想工具。
The topology of the network, the physical interface and the communication protocol are also described.
文中对控制网络的物理层接口、拓扑结构、通信协议等作了较为详细的说明。
The topology of the network, the physical interface and the communication protocol are also described.
文中对控制网络的物理层接口、拓扑结构、通信协议等作了较为详细的说明。
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