Additional Persistency Schemes - Avaya P330 User Manual

Chapter 1
Persistency is achieved by opening a new entry for a server group based
on the following:

Additional Persistency Schemes

Using the P333R-LB, you can configure a Real Server to backup one or
more primary Real Servers. A backup Real server is not used unless the
primary Real Server is down.
You can also configure a Real Server Group (RSG) to backup one or
more primary RSGs. A backup RSG can run a different service than the
primary RSG while providing backup to all of the primary RSG's services.
Similar to the Real Server, the backup RSG is not used unless all Real
Servers in the RSG are down.
17
• New entry on source IP address - All sessions from a specific
source are directed to the same RS. This is useful for applications
where client information must be retained on the RS between
sessions.
• New entry on destination IP address - All sessions to a
specific destination are directed to the same RS. This is useful for
caching applications to maximize successful cache hits when the
information is not duplicated between RSs.
• New entry on source IP and destination IP addresses - All
sessions from a given source to a given destination are directed to
the same RS. This is useful for Firewall Load Balancing, since it
ensures that the two unidirectional flows of a given session are
directed through the same firewall.
Avaya P330 Load Balancing Manager User Guide