Sun Microsystems Portal Server 6 - Manual (Page 119)

Designing SRA Deployment Scenarios
Chapter 5 Creating Your Portal Design 119
Using Two Gateways and Netlet Proxy
Load balancers provide a failover mechanism for higher availability for
redundancy of services on the Portal Servers and Access Managers.
Figure 5-16 Two Gateways and Netlet Proxy
Gateway
Gateway
NetFile
Netlet
Client
Client
NetFile
Netlet
Netlet traffic
HTTP traffic
HTTP
HTTP
Web
Proxy Netlet
Proxy
LB
Load
Balancer