| |||||||||||||
How creaky is Ethernet the spec?How creaky is Ethernet the spec?Posted Oct 29, 2009 19:41 UTC (Thu) by mebrown (subscriber, #7960)In reply to: How creaky is Ethernet the spec? by agrover Parent article: JLS2009: Generic receive offload
"All 1Gb and above Ethernet is full duplex, point to point"
Actually not true. When 1Gb Ethernet first came out, you could buy actual hubs which had actual collisions and the wonderful-ness (or lack thereof) that entailed (meaning half-duplex-only). They were very quickly obsolete when almost all vendors switched to using switches exclusively and I dont think you could actually buy a hub anymore.
(Log in to post comments)
How creaky is Ethernet the spec? Posted Oct 30, 2009 2:46 UTC (Fri) by smoogen (subscriber, #97) [Link]
I was told that if you sent a flood of ICMP traffic to certain 1GB switches they would 'fail' into a hub-like mode.
The collision detection is still needed because they are still possible on a pure switch.. usually they happen with certain traffic patterns or if the network gets saturated. However they occur a LOT less than they did on hubs.
|
|||||||||||||