We are looking for a WAN Optimization from cisco, want to optimize the WAN bandwidth where the branch offices use the SQL Server, File server, Web servers, Web Proxy server, e-mail from the head office.
I see we can use WAAS, with the following products.
2800 Series routers with WAAS module at head office and branch offices.
My question is Can we achieve the optimization 3 routers that has WAAS modules.
Do we really need the WAE Appliance at Head office? if yes what is its advantage.?
here is the approximate use specifications.
Head office 200 users
branch office 1 with 100 and other with 50.
What is the maximum capacity of the WAN link that can be optimized using the 2800 series router.
One point you need to be aware of is that the router modules (NM-WAE) only support 1 peer. Therefore you couldn't have a single module at the core site supporting 2 branch offices. Of course you could come up with a design that uses 2 seperate routers/modules, 1 for each link, but that really depends on the network topology. Much better to use WAE-512s or 612s for scalability and growth.
Also note that the NM-WAE-302 only supports a transport license at this time (you don't get the CIFS facilities). The NM-WAE-502 supports the full enterprise license.
So if you want a single WAE at the core, you would need at a minimum:
router/NM-WAE module for each branch.
WAE-512 or larger for core engine.
WAE-512 for core Central Manager.
Plus all the relevant licenses etc.
Your choice of kit also largely depends on the sizing. There's no predefined rule because it depends on your traffic profiles.