| Bandwidth requirement of ISP
to connect to SAP server through VPN
We are in the process of implementing SAP for our overseas sales offices. However, the Server will be situated at our country. We want our overseas sales office to connect to our SAP Server through VPN. What should be the optimum internet bandwidth that they should use at their place to connect to our SAP server? Does SAP recommend any standard bandwidth for this process? From our experience, there is no general rule that one can follow, as several factors will affect the connectivity 1. No of hops between your ISP and that of the remote site, the more hops the poorer the performance, even having large bandwidth may not improve the performance by much if there are numerous hops in between. 2. Is the Internet connectivity solely used for your VPN or other purposes such as web surfing, email etc, other traffic can consume large amount of traffic thus causing your SAP performance to be poorer 3. ISP's bandwidth to the public internet - If the ISP is heavily over subscribed, and has limited bandwidth connecting to the international network, you will find that you will not be able to get the international throughput you subscribed for as such, performance may be poor even you have paid for a line with a large bandwidth 4. No of users at your remote office using the VPN - In general the lines we use are 64kbps for sites with approx 3-5 users, we are also using ADSL lines with 512kbps connectivity and they enjoy close to local Lan performance for SAP.
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