H3C Technologies H3C SecPath F1000-E - Manual (Page 885)

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Item Description
Forwarding Mode
Load balancing mode adopted:
z NAT: NAT-mode server load balancing
z Direct Routing: DR-mode server load balancing
z 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.
SNAT IP Pool
Configure an SNAT IP address pool.
It can be set when Enable SNAT is selected. Its default value is the virtual
service IP address.
The start IP address and end IP address must be both configured or both empty,
and the end IP address must be greater than the start IP address.
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 rules specified for the real service in the referenced
real service group.
Return to
Server load balancing configuration task list .
Displaying Server Load Balancing Statistics
Select High Reliability > 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 rate/peak rate, number of forwarded/ignored packets in the inbound
direction, and number of forwarded packets in the outbound direction. If you click the link of a virtual
service name, the statistics of all the real services of the virtual service will be displayed on the lower part
of the page, including total number of connections, average of active connections/peak of active