ME 3400 minimum traffic shape rate

[sanches--]

Hi

I just implement traffic shape for output traffic on interface FastEthernet:

policy-map megann-10M-out

class class-default

shape average 10485500

int fa0/5

switch-2(config-if)#service-policy output megann-10M-out

QoS: Configuration failed. The configured rate is not achievable in hw within 1% of configuration.

Closest value(s) are: 11111120 bps, 5882368 bps

What is "1% of configuration"? It's not an 1% of interface rate?

[mheusinger]

Hello,

this is somewhat odd and looks like only predefined rates are achievable with shaping. The command reference does not mention this at all

http://www.cisco.com/en/US/products/ps6580/products_command_reference_chapter09186a008051341a.html#wp5979557

but gives an example with 10000000. Maybe you can try this value?

I understand the message like this: you are not within 1% of the rate 11111120 bps with your configured value. Have you tried to configure shaping to this rate?

Hope this helps! Please rate all posts.

Regards, Martin

[sanches--]

Hi

I need to configure wide range of traffic shape average value (from 64K to 10M). Command reference give next description for shape average:

Target average bit rate in bits per second (bps). The range is from 64000 to 1000000000.

I h've tried to configure traffic shape rate 10M (10485500), but it's not possible. Actual only two discrete value 5882368, 11111120 and values higher 11111120.

Why?

[mheusinger]

Hello,

in fact I would open a case with Cisco TAC for this issue. It is not mentioned anywhere in the documentation, but really contradicts the behaviour in the command reference mentioned above. In my opinion, there is not too much sense in trying to figure out, what the software/hardware designer had in mind, when causing this.

Regards, Martin

[sanches--]

Ok, i'll try to open case. Thanks.

[DANIEL KEISTER]

did you get an asnswer to that question because i also recieve that message

[armin.kask]

Hello,

try

policy-map CHILD

class class-default

shape average 2000000

policy-map PARENT

class class-default

shape average 100000000

service-policy CHILD

interface FastEthernet0/1

service-policy output PARENT

[sjamison76]

The egress side has issues is as nicely as I can put it.

If your going to rate shape the egress side, you have to hardset the port speed to 10mbs. So 10mbs or less you can shape. 100mbs or less to 11mbs you can shape. 101mbs to 1gig you can shape.

Thats why your getting the error, its connected at 100mbs and you cant shape to 10mbs when a port speed 10 will work.

If you moved to an ingress/ingress strategy you can have a 1gig port speed, and rate shape as low as you want and be able to get both directions of the traffic flow.