bandwidth limitation..

[JATINDER KUMAR]

deal all,

can you ppl please suggest me if i want to limit the bandwidth per "network" yes i am saying per net how can i do it..

scenario is .. we are getting a big pipe from our ISP now we want to limit the bandwidth per client... like in cloud model we have multiple client and all the clients are requesting for different amount of bandwidth.. like for one 256 for another 512.. and just to clear all the clients are using there own different subnet/ netowrk.. how can i accomplish this...Please help fast....

need an idea.. need to do something on router or ASA (no a preffered option).. some thing to do with QoS.. need a permanent and result oriented solution..

please help

[Mahesh Gohil]

Hello Jatinder,

You can achieve this with help of Qos...

Like for example You want to limit rate to 512k for network 10.10.10.0/24..it will be look like as

ip access-list 10 permit 10.10.10.0 0.0.0.255

class-map 512k

match ip access-group 10

Policy-map 512k

class 512k

police cir 512000 96000 96000 conform-action transmit exceed-action drop.

Above is true at access side..meanin   ISP---Your-domain----Customer..Here you are applying Qos towards customer access link

But it will be different case if you want to limit the different customer in same pipe towards ISP..In that case you need to go for qos

with different structure.

something like.

ip access-list 10 permit 10.10.10.0 0.0.0.255

ip access-list 11 permit 10.10.11.0 0.0.0.255

class-map 512k

match ip access-group 10

class-map 256k

match ip access-group 11

Policy-map TO-ISP

class 512k

police cir 512000 96000 96000 conform-action transmit exceed-action drop.

class 256k

police cir 256000 48000 48000 conform-action transmit exceed-action drop.

Hope this helps

Regards

Mahesh

[JATINDER KUMAR]

thanks mahesh.. for the timely help.. one thing just to make my self clear.. i can put bandwidth limitations user basis (User Account - i know not possible in router - just a thaught) or ip based... or QoS i can only use to put bandwidth limitation based on network not individual ip...?

can u suggest some topic heading to read about this.. QoS is a huge topic i need to finalize this today only.. so if possible pass some documents or some examples.. or some topic name..

thanks mahesh

for the help

jatin

[aqeel.karim]

I agree with Mahesh on this... Applying a network restriction is really where the more important portion is. Due to the fact that the router to the ISP is really where the BW utilization is counted. I'm not sure if you have a switch architecture, but it doesn't make a lot of since to place BW limitations on the user ports as a switch and buffer, store/fwd frames as needed or specified.

Reducing your user population from noticing a great amount of lag/delay. But the policy map statements allows you to control BW leaving your network. And at the end of the day the utilization can be dictated down to the user as a certain IP can use more of the assigned BW if no other users are on the network.

But if you want to attach at the user port and you have a managed Cisco switch, there is an option of applying the bw statement to the individual user ports. This is definitely a feature on 2600/3500/4500/6500 base Cat switches with most 12.xx IOS's.

Aqeel