egress port是什么

Egress port（出口端口）是指网络设备（如交换机、路由器）上的一个物理端口，用于转发离开该设备的数据包。当一个数据包从网络设备的入口端口进入设备时，设备会根据该数据包的目的地址和路由表等信息，确定数据包应该从哪个出口端口离开设备，然后将数据包转发到该出口端口。因此，出口端口是网络设备中非常重要的一个组成部分，它直接影响着设备的转发性能和网络的速度。

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egress port

Egress port refers to the port on a network device, such as a router or switch, through which network traffic exits or "egresses" the network. It is the opposite of an ingress port, which refers to the port through which traffic enters the network. Egress ports are typically used to connect devices to other networks or to the internet. They may be configured with specific rules or security measures to control the flow of outgoing traffic and ensure that it is secure and compliant with network policies.