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Twitter3- Switching Modes :
Cisco switches has offered 3 ways to switch the traffic, this depends on how the frame is checked before it is forwarded, so the more checking performed, the more latency will be introduced by the switch.
the three switching modes to choose from are :
Cut-through
Store-and-forward
Fragment-Free
however the default mode en modern switches is the Store-and-forward mode.
3-1- Cut-through :
this methode is fast, so it introduces the lowest latency....
Tuesday, 15 September 2015
Monday, 14 September 2015
10:08
RenoParfaite
2- Broadcaste & Collision Domains :
2-1- Collision domains:
to begin with, it's vital to know that one of the advantages of modern switches is that each port on the switch is considered as a collision domain.
so when a collision is occured, the damaged frame does not pass the interface(not the Hubs' case the damaged frame will be sent to all connected devices).
figure.1...
09:03
RenoParfaite
1- CSMA/CD :
CSMA/CD stands for Carrier Sense Multiple Access Collision Detection, we can identifier this concept very easily with the following :
on a LAN (local area network) with a half Duplex mode collision may occur, so with CSMA/CD access methode, if there is any a collision on the link the switch will inform the other network devices to stop forwarding data on that wire until the link is...
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