Do I need to use QoS for full and half-duplex network configurations?

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Tags:
configuration
Network
Networking
QoS
Switch
I have a simple switched network containing only Layer 2. The switch is a good commercial product. I use only 8 ports. The traffic offered is 4 Mbps for VoIP while all other data gets 1 Mbps (with some control traffic).[o:p][/o:p]

[o:p] [/o:p]

Out of these two configs,  100BASE-TX (full) or 10BASE-T (half-duplex), do I need Layer 2 QoS for each configuration? Is there a general rule of thumb to decide when QoS is required for my network?[o:p][/o:p]

ASKED: December 17, 2009  7:19 PM
UPDATED: December 17, 2009  8:20 PM

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With only 4 ports for voice, it may work fine without QoS set, but the general recommendation is that you have a Layer 3 (L3) switch. Even without QoS you can put voice and data on separate subnets. Without knowing the amount of traffic passed for data or voice, it is hard to say. But if you try the VoIP and it is poor quality, I would upgrade the switch.

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