英文:
On what ISO/OSI layer does a hub operate?
问题
在我的学习中,我们现在正在学习计算机通信,我和我的老师就集线器(hub)是在第一层还是第二层运行存在分歧。
我对集线器的理解是它只是一个带有多个输出的中继器,但根据我们即将进行的考试,集线器在哪一层运行的正确答案始终是第二层。
问题:
由于互联网上几乎一致认为集线器在第一层运行,我想知道有哪些论点支持它在第二层运行的观点。
英文:
In my studies we are right now learning about computer communication and i've gotten into a disagrement with my teacher whether a hub is operating on layer 1 or layer 2.
My understanding of a hub is that it is just a repeater with multiple outputs but looking at the exam we are gonna take the right answer of which layer a hub is on is always layer 2.
Question:
Since the internet pretty much unanimous agrees that a hub is operating on layer 1 I wonder what arguments can be made for it operating on layer 2.
答案1
得分: 1
「Hub通常是L1设备的术语。」然而,「L2交换机有时被称为交换机」。在第1、2和3层连接多个网络节点的设备的常用术语是:
- 第1层(物理层):集线器(hub)
- 第2层(链路层):交换机(switch)
- 第3层(网络层):路由器(router)
英文:
Hub is usually term for L1 device. However, L2 switch is sometimes called switching hub. Common terms for devices facilitating connection of multiple networked nodes on layers 1, 2 and 3 are:
- L1 (physical): a hub
- L2 (link): a switch
- L3 (network): a router
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