I have recently set up a network connecting 3 physical locations (1 location has servers, other 2 locations have only workstations and VoIP phones) using SonicWall TZ190 units as border routers.
All 3 physical locations are connected logically via a VPN tunnel.
My problem is that I do not have enough working knowledge of QoS (and more specifically as implemented on the SonicWall TZ190 device).
I have attached a "code snippet" as a basic diagram of the network layout. There will be VoIP phones in all 3 locations, and the Asterisk (VoIP) server is located in the 172.16.1.0/24 network.
"Server Location" has a cable connection (16 mbit x 2 mbit).
"Remote Office 1" has a DSL connection (6 mbit x 768 kbit).
"Remote Office 2" has a cable connection (16 mbit x 2 mbit).
We are going to have around 10 phones total across all 3 locations, along with 2 other Windows 2003 based servers. The Windows 2003 servers are online currently and it's almost impossible to tell that they aren't at the same physical location.
However, if anyone puts a load on the connection the VoIP gets choppy. So I need to implement QoS on the SonicWall devices, and to be totally honest... I have no idea how to do it properly as this is my first roll out using SonicWall devices.
So... here I am asking for help...
(Thanks in advance!)
Remote Office 1 - LAN (172.16.2.0/24) -----|
Server Location - LAN (172.16.1.0/24) -----|
Remote Office 2 - LAN (172.16.5.0/24) -----|