Cisco 2620 - Traffic Shaping. Need some help!

[BS911]

Have a client that wants to limit the bandwith to certain PC's on his network. At 1st I was thinking that he could buy a Cisco switch to pair up with his 2620 and I could setup VLAN's and set the speed that way. I've been told though that I should be able to limit the bandwidth to the PC with just the router using some sort of traffic shaping / access list combination.

Anyone have expierence with this or have any input?

Thanks!!

 

[spidey07]

Originally posted by: BS911
Have a client that wants to limit the bandwith to certain PC's on his network. At 1st I was thinking that he could buy a Cisco switch to pair up with his 2620 and I could setup VLAN's and set the speed that way. I've been told though that I should be able to limit the bandwidth to the PC with just the router using some sort of traffic shaping / access list combination.

Anyone have expierence with this or have any input?

Thanks!!

Oh boy. Where to start?

Do you want to limit ALL traffic to/from certain PCs when crossing the router? Or only certain applications? If I were you I'd call cisco because it can get pretty hairy.

Otherwise search cisco for "traffic shaping" or "rate limiting"

 

[BS911]

The customer has a 256k Fractional T1 at his house and is basically just wanting to limit a couple PC's on his network to 64k so that they don't suck up all his bandwidth when downloading/uploading flies.

 

[randal]

The simple way is to use Generic Traffic Shaping on the router. It essentially lets you restrict outbound traffic on an interface, either by limiting the entire interface or by matching against an Access Control List. (see link below for documentation). We successfully use this implementation in a handful of places on our network and it works without issue.

Here's a sample config for one IP address, assuming that s0 is the T1 interface and that e0 is the LAN interface, and that the computer to rate limit is using 192.168.1.2:

*log on to router*
ena
{password}
access-list 101 permit ip any host 192.168.1.2
access-list 102 permit ip host 192.168.1.2 any
conf t
int e0
traffic-shape group 101 64000
int s0
traffic-shape group 102 64000
ctrl+z
write mem

That would set an inbound and outbound speed of 64kbps (or 64,000 bits per second) for the host on 192.168.1.2.

More details can be found here:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/qos_c/qcpart4/qcgts.htm

randal

 

[BS911]

I'll give that a shot! I'll let you know the results!

 

[BS911]

Worked like a charm!

Thanks so much Randal!!

 

[randal]

Glad I could help!

randal