lesson 7

Question 1

cbwfq

Answer 1

• class based weighted fair queuing
• used to guarantee bandwidth to classes
• extends wfq functionality
• a queue is reserved for each class

Question 2

cbwfq benefits

Answer 2

• custom defined classifications
• minimum bandwidth allocation
• finer granularity and scalability

Question 3

cbwfq drawbacks

Answer 3

-voice traffic can still suffer unacceptable delay (no priority)

Question 4

llq

Answer 4

• low latency queuing
• combines priority queuing with cbwfq
• adds a top level priority queue to wfq

Question 5

nbar2

Answer 5

• network based application recognition
• performs protocol discovery (layer 4-7)
• identification of applications and protocols

Question 6

nbar2 classification technique

Answer 6

-service control engine (sce)

Question 7

nbar2 statistic types

Answer 7

• bidirectional
• per interface
• per protocol

Question 8

where to classify traffic for qos

Answer 8

-trust boundary (as close to the edge of lan as possible)

Question 9

mqc

Answer 9

-modular quality of service

Question 10

mqc steps

Answer 10

1. define a traffic class with class map
2. create a traffic policy with policy map
3. attach the traffic policy to an interface with service policy