Unanswered Question
Feb 7th, 2008
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Hello Question

Why this policy map works:

policy-map test

class class 1

priority 60

class class2

bandwidth percent 30

class class 3

bandwidth percent 45

According to the book under a single policy map the structure should be the same? kbps or percent but the combination should not be accepted.

Thank you,


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Overall Rating: 4 (2 ratings)
toddlerdal Fri, 02/08/2008 - 06:30
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Been a few months since I read the book for QoS, but I believe that is only true outside of the priority queue that you can not mix and match.

nilslau03 Fri, 02/08/2008 - 10:47
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You are right!

This example is wrong:

policy-map pmp3

class class1

priority percent 20

class class2

bandwidth 30

class class 3

bandwidth percent 30

This show that outside the priority queue we cannot mix the commands.

Thank you once again.

you should use either percent or hard bandwdith in kbps. you could mix it up by putting a policy map within a policy

policy map 1 could use a hard police statement not to use over 1.5mbps and policy map 2 could further define what amount of traffic each class has within either by percent or kbps.

but even then your still governed by the rule. remember that you can use only 75 percent of the bandwidth unless you remove the restriction from the interface its going to be applied. all available bandwidth should be used up in the policy map and none left over. there are alot of extra things i didn't cover but if your reading the book it will help


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