Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

the difference of 2 QOS command

can someone tell me what is the differences of these 2 policy-map?

policy-map test

class test

bandwidth 1000000

policy-map test2

class test

shape average 1000000

1 ACCEPTED SOLUTION

Accepted Solutions
Gold

Re: the difference of 2 QOS command

Bandwidth guaentees the defiend amount where shape attempts to limit usage.

Assume a link that is very overutilized and each class test is attempting to use more that the defined bandwidth.

In the first case it will get the defined amount and then will compete for the rest of the bandwidth with the rest of the classes.

In the second the all the traffic still competes with each other but the shape command will eventually drop

packets if they exceed the burst rate for too long.

In periods without congestion bandwidth has no effect but shape will continure to limit the amount of traffic sent.

... edited this I orginally though shape average only took effect during congestion but it is always in effect and is a policer of sorts.

2 REPLIES

Re: the difference of 2 QOS command

syntex of command is like this

#policy-map policyname

here you are having two different policy with different name one is with name "test" and other is with name "test2" thats it noting more...

policy map command is used creat the policy which is attached to the one or more interface...

hope this will help you

reat this post if it helps

regards

Devang

Gold

Re: the difference of 2 QOS command

Bandwidth guaentees the defiend amount where shape attempts to limit usage.

Assume a link that is very overutilized and each class test is attempting to use more that the defined bandwidth.

In the first case it will get the defined amount and then will compete for the rest of the bandwidth with the rest of the classes.

In the second the all the traffic still competes with each other but the shape command will eventually drop

packets if they exceed the burst rate for too long.

In periods without congestion bandwidth has no effect but shape will continure to limit the amount of traffic sent.

... edited this I orginally though shape average only took effect during congestion but it is always in effect and is a policer of sorts.

115
Views
0
Helpful
2
Replies
CreatePlease to create content