Load Balancing - HP Sa3110 - VPN Server Appliance Manual

6
Tunnel Definition Tunnel Definition
Tunnel Definition Tunnel Definition
Parameters Parameters
Parameters Parameters
Group name
Client IP
Number of clients
Secure profile (must
be previously
defined)
Tunnel mode
IP route
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Information Information
Information Information
Hewlett-Packard Company Virtual Private Networking Concepts Guide
Load Balancing and Redundancy

Load Balancing

Load Balancing Load Balancing Load Balancing
Given the presence of more than one VPN device in parallel, it
makes sense that each VPN device handles an equal portion of
the traffic. This equal portioning is called load balancing, which
is accomplished in two ways. Given that a tunnel is established
with the VPN device that answers first and that the VPN device
that answers first does so because it is not busy, the load should
be fairly evenly distributed.
In addition, the number of clients set for Client IP can be used to
divide up the total load among the VPN device devices. As shown
in the following example, if the total number of clients desired is
60 and there are two VPN devices, the number of clients on each
VPN device should be set to 30. In this way a maximum of 30
clients could establish tunnels with each VPN device.
VPN Device A VPN Device A
VPN Device A VPN Device A
sales
10.1.1.193
30
dialup
Red
Not required
Redundancy (page 6-2)
Tunnel Modes (page 5-20)
Tunnel Types (page 5-8)
VPN Device B VPN Device B
VPN Device B VPN Device B
sales
10.1.1.225
30
dialup
Red
Not required
6-1