Limit the bandwidth on a Cisco router (possible 1800 series)

Hi experts,

I'm looking for just a few ideas in my scenario of installation.

I have this router. Its f0/0 will be the Internet connection with a bandwidth of 30Mbps. Its f0/1 will be connected to a switch for internal networks. This link will be separated 3 VLANs 3 internal networks. I wonder if there is a way to gurantee 10 Mbps for each VIRTUAL local area network, but allow up to 30Mbps when another two VLANS use all Internet bandwidth? I'm just worried about the bandwidth of internet download.

3 internal networks will all public IPs and they belong to their own subnets. There will be NAT/PAT.

An example configuration is greatly appreciated!

Thank you!

Difan

The following example policies inside interface to 30Mbps.  He also uses a mechanism to queue just to get all subnets are also queued but can use the entire rate purchased in the absence of competitive traffic.

access list 101 ip allow to any quel.w a.a.a.a # subnet A

access-list 102 permit ip tout.w b.b.b.b # subnet B

access-list 103 allow tout.w c.c.c.c ip # subnet C

class-map a subnet
game group-access 101

class-map-b subnet
game group-access 102

subnet c-class-map
game group-access 103

subnets policy-map
class-map a subnet
33% of bandwidth
class-map-b subnet
33% of bandwidth
subnet c-class-map
33% of bandwidth
output

Policy-map physical
class class by default
in line-action police 30000000 pass drop exceeds-action
subnets of service-policy
output

int fa0/1
service-policy output physical
output

Tags: Cisco Network

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