R3204P16-HP Load Balancing Module Load Balancing Configuration Guide-6PW101

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Item Descri
p
tion
Forwarding Mode
Load balancing mode adopted:
• NAT: NAT-mode server load balancing
• Direct Routing: DR-mode server load balancing
• Firewall: firewall load balancing
Enable SNAT
Enable source address NAT translation, which changes the source address of a
packet during load balancing.
It can be set only when the forwarding mode is NAT.
TIP:
In stateful failover networking, if you enable SNAT, the addresses in the SNAT IP
address pool cannot be in the same network segment as the interface address of
the device.
SNAT IP Pool
Configure an SNAT IP address pool.
It can be set only when Enable SNAT is selected.
TIP:
The SNAT IP address pool cannot overlap the NAT IP address pool configured on
the interface that connects the device to the real server.
Persistence Method
Select a method for associating real services and connections that access the
same virtual service.
• If you do not select a persistence method, no real services or connections are
associated.
• Source IP: Connections that have the same source address will be associated
with the same real service. In this mode, if the service port number is
configured as any, then any connection with the same source address and
protocol type indicates access of the same real service.
The source IP mode can reduce times that LB device distributes traffic and
services.
Persistence Timeout
Set the aging time of a persistence entry.
When a persistence method is configured, persistence entries are generated
according to the persistence method. If a persistence entry is not matched within
the persistence timeout time, the persistence entry is deleted.
This option is not available if you do not select a persistence method.
Connection Limit Set the maximum number of concurrent connections of the virtual service.
Real Service Group Reference a real service group for the virtual service.
Enable Virtual Service
Whether to enable a virtual service after it is configured.
This option is not available if you do not select a real service group.
Enable Policy
Whether to enable the ACL rule specified by the real service in the referenced
real service group.
Return to Server load balancing configuration task list.
Displaying server load balancing statistics
Select Load Balance > Server Load Balance from the navigation tree, and then click Statistics, and
statistics of all the virtual services of server load balancing are displayed on the page, including total
number of connections, average of active connections/peak of active connections, connection average