QoS with subnets / vlan's
Posted on 2008-11-03
I have e new fiber WAN connection 100MB (10MB guaranteed), on this line i have a few public ip-addresses.
My internal network consists of a data and a voip network. Currently these networks are physically separated and have seperate dsl connections.
In the new network setup, both connections/networks must use the fiber connection.
I would like to have some advice on the following scenarios:
- Scenario 1: Two Cisco 861 routers with an public (static) ip for the two subnets.
- Scenario 2: One Cisco 1811 that routes the public subnet with 2 other routers that route the subnets
- Scenario 3: One Cisco 1811 router with 2 vlan's for voice and data (one public ip).
For scenario 1: i'm worried that the data network will use all bandwidth and voice will stop working because there is no way to enforce QoS, am i right?
For scenario 2: I can control bandwidth trough the main subnet router, but connecting routers after routers does not sound like a good solution.
For scenario 3: Sounds good, but how do i address the ip addresses for the different subnets, i want to use the 1811 as DHCP server. I need different subnets e.g: 192.168.1.x and 192.168.2.x.
I would like to create a solution that is flexible and where i can control bandwidth, please advice!
Thanks in advance!