Half duplex vs full
alliasneo
Member Posts: 186
in CCNA & CCENT
Ive read that a half duplex configuration will result in the Ethernet sharing the collision domain on that segment. Why is this? I thought if it was half duplex then only one would send at a time and collisions would be avoided?
It makes more sense to me if it was full duplex then signals are going back and fourth simultaneously and collisions would be more likely?
It makes more sense to me if it was full duplex then signals are going back and fourth simultaneously and collisions would be more likely?
Comments
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jude56g
Member Posts: 107 ■■■□□□□□□□
Setting an interface to full duplex disables the CSMA/CD logic.
This may shed some light. Troubleshooting Ethernet Collisions - Cisco Systems
Also, the switching & bridging section sums this up nicely. Ethernet - Wikipedia, the free encyclopedia
HTH -
thedrama
Member Posts: 291 ■□□□□□□□□□
Ive read that a half duplex configuration will result in the Ethernet sharing the collision domain on that segment. Why is this? I thought if it was half duplex then only one would send at a time and collisions would be avoided?
It makes more sense to me if it was full duplex then signals are going back and fourth simultaneously and collisions would be more likely?
But. You ignored a significant thing. In full duplex, different set of wires in the cable are used, however, in half duplex, it is performed by
same set of wires therefore data stream from one end collides with the one coming from other end.Monster PC specs(Packard Bell VR46) : Intel Celeron Dual-Core 1.2 GHz CPU , 4096 MB DDR3 RAM, Intel Media Graphics (R) 4 Family with IntelGMA 4500 M HD graphics.
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