Answer Posted / trilokchand kilari

Well, none of the above answers talk about QOS,

L2-QOS:
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It is clear that L2 is at MAC layer. In case of MAC level
forwarding such as Bridge connction and a quality of
service need to be assured, The following methods can be
used:

1) MAC filtering (avoiding unnecessary traffic coming from
known MAC sources)
2) VLAN & COS: VLAN will ensure that the traffic is
classified based on various parameters like MAC address,
incoming port, etc... COS: Class Of Service is a filed in
VLAN header. This will be used to prioritize traffic. Later
a QOS scheduler can use the COS filed to qualify the
traffic in to different QOS queues.

L3 - QOS
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L3 QOS is required for IP level classification.
Classification can be achieved by Diffserv implementations
that takes many IP parameters in to consideration in
prioritizing traffic. This priority can be set in TOS field
of IP header. This TOS will later be used by Scheduling
process to achieve QOS.

What are the different types of osi layer?

1178

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How are semaphores used?

1146

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What is the difference between public and private ip?

1053

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Explain which layer is closer to the user?

1038

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at which layer of osi model does segmentation of a data stream happen?

1233

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How do I find my servers ip address?

1109

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Is port 80 secure?

1059

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Is netbios tcp or udp?

1039

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How do I check if a port is open on my mac?

1062

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Can the IP address be same for 2 PC's?

1099

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How do I find my ip address in terminal?

1088

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How will my computer get its ip address?

1087

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What is the equivalent layer or layers of the tcp/ip application layer in terms of osi reference model?

1075

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Explain what is the pdu of "network layer" and "data link layer"?

1123

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Hey friends, i want to do a telecom protocol development course in Pune. plz mention some good instituition.what is its scope.plz help me out.course(MAC,RLC,RRC,VOIP,3G,GSM, ss7, SIP)

2462

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