VigorSwitch G1260 User’s Guide
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collision. The arbitrator will arbitrate who should gain the media. The arbitrator is a
distributed mechanism in which all stations contend to gain the media. Please refer to
“What’s the Ethernet” for more details.
In the figure listed below, assumed in half duplex, you will see some ports of the switch are
linked to a shared HUB, which connects many hosts, and some ports just are individually
linked to a single host. The hosts attached to a shared hub will be in the same collision
domain, separated by the switch, and use CSMA/CD rule. For the host directly attached to
the switch, because no other host(s) joins the traffic contention, hence it will not be
affected by CSMA/CD. These LAN segments are separated in different access domains by
the switch. (*
The switch image is sample only.)
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To have a port of the switch connected to a single host is referred to as micro-segmentation.
It has the following interesting characteristics.
There is no need the access contention (e.g. Collision). They have their own access
domain. But, collision still could happen between the host and the switch port.
When performing the full duplex, the collision vanishes.
The host owns a dedicated bandwidth of the port.
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