Traffic Policy on Bandwidth

[nitish14351]

Hiii,

We have 150 Mbps internet link, and we have some 4 vlans which are getting internet from that links. That vlans are natted with public IPs as :

executive: XX.XX.XX.01

Guest : XX.XX.XX.02

Smart  : XX.XX.XX.03

Staff:  XX.XX.XX.04

Now on the internet routers we have  make traffic policies for these Vlans and restricted the bandwidth on these vlan as 15 Mbps, 5 Mbps etc out of 150 Mbps. When I am doing speed test, its look like that policy are not effective.

The following configuration is done on router regarding the policy:

class-map match-any executive
 match access-group name executive
class-map match-any guest
 match access-group name guest
class-map match-any smartphones
 match access-group name smartphones
class-map match-any vendors
 match access-group name vendors
!
policy-map Child-policy
 class smartphones
  bandwidth 25000
 class guest
  bandwidth 15000
 class executive
  bandwidth 20000
 class vendors
  bandwidth 2000
policy-map parent-policy
 class class-default
  shape average 150000000   
   service-policy Child-policy 

interface GigabitEthernet0/0/2
 description ## 150 Mbps Mbps Internet Link from BSNL ##
 bandwidth 153600
 ip address a.b.c.d 255.255.255.252
 ip nat outside
 load-interval 30
 negotiation auto
 service-policy output parent-policy

ip access-list standard executive
 permit XX.XX.XX.01
ip access-list standard guest
 permit XX.XX.XX.02
ip access-list standard smartphones
 permit XX.XX.XX.03
ip access-list standard vendors
 permit XX.XX.XX.04

Now please guide me that what is wrong conf. we have done that these are not effected on vlan.

[Joseph W. Doherty]

CBWFQ bandwidth statements do not set a maximum. The provide a minimum.

To set maximums you need to use a shaper or policer.

[Kevin SAS]

Hi

Joseph is right, your configuration only reserve bandwith in case of congestion and does not police or shape the traffic. Use something like that instead :

policy-map Child-policy
 class smartphones
  shape average 25000
 class guest
  police rate percent 40 burst 200 ms conform-action transmit exceed-action transmit violate-action drop
Second one is doing policing without buffering and allow max 40% of bandwith, based on the bandwith statement of gi 0/0/2

[nitish14351]

Dear Kevin,

Thanks....

Can you give me exact and full configuration for configuring and limiting the Bandwidth for different vlan as:

Smartphone:-25 Mbps

Guest:- 15 Mbps

Executive :- 20 Mbps

Vendor:- 2 Mbps

Thanks in Advance.

[Kevin SAS]

I think you have enough of stuff to work, juste replace your bandwith command in your class with

shape [bandwith desired in bit/sec)