Network Design Ideas

[toddmanger]

I have been tasked with redesigning a network for between 50-100 people. The network is currently a single subnet (no vlan. I have the following equipment to work with and I am soliciting advice about its implementation.

I have a 2811 Router, 3650 catalyst switch and 3 linksys srw224 POE switches. I also have the possibility of acquiring another 2811.

We have a mixed voip/digital telcomm environment, so I know vlans with QOS are a must.

Any help would be greatly appreciated.

Thank you

[jackyoung]

In additional to VLAN and QoS, any other requirements ?

How the existing equipment connnected each other and what is the reason to redesign the network ?

[toddmanger]

I have multiple ISP WAN connections that I must attempt to load balance and provide redundancy for.

The 2811 is currently at the top of the stack feeding the 3 linksys switches (cascading) with no redundancy or failover protection.

[m-haddad]

As per the devices that you have I suggest the below:

3560:

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Consider the 3560 as your Core L3 switch. COnfigure VLANs on the 3560 along with their corresponding VLAN interfaces (SVI).

Enable Ip routing between the VLANs.

Create a special VLAN for VoIP

set users and server in different VLANs and of course subnets

Linksys:

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Use the linksys switches as L2 switches

Trunk each of the Linksys switches to the core switch

Create same VLANs on those switches

Assign users to users VLAN, VoIP phones to VoIP VLAN and Servers to Servers VLAN

As for the 2811:

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Terminate the two providers to the router. Configure NAT and Use IP SLA to monitor if one ISP goes down so you failover to the second

Create a transit VLAN between the 2800 and Core switch and add a default route on the 3560 pointint to the 2800 router

I hope this helps,

Appreciate your rating,

Regards,

[toddmanger]

Thank you for the help. Should I divide the available ports among the vlans for all the switches (ie - 4 vlans with 4 ports for each switch)?