H3C Technologies H3C SecPath F1000-E User Manual
Page 879
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Item Description
Scheduler
Select an algorithm that a real service group uses to distribute services and
traffic:
•
Round Robin: Assigns new connections to each real service in turn.
•
Weighted Round Robin: Assigns new connections to real services based
on the weights of real services; a higher weight indicates more new
connections will be assigned.
•
Least Connections: New connections are always assigned to the real
service with the fewest number of active connections.
•
Weighted Least Connections: New connections are always assigned to
the real service with the fewest number of weighted active connections
(the number of active connections/weight).
•
Random: Assigns new connections to real services randomly.
•
Weighted Random: Assigns new connections randomly to real services
based on their weights; a higher weight indicates more new connections
will be assigned.
•
Source Address Hashing: Assigns a new connection to a specific real
service based on the source address of the connection. This algorithm
ensures that new connections with the same source address can be
assigned to the same real service.
•
Source Address Port Hashing: Assigns a new connection to a specific
real service based on the source address and port of the connection. This
algorithm ensures that new connections with the same source address
and port can be assigned to the same real service.
•
Destination Address Hashing: Assigns a new connection to a specific
real service based on the destination address of the connection.
•
UDP Packet Load Hash: Assigns a new connection to a specific real
service based on the value of a specific field in the UDP packet payload.
This algorithm can ensure that new connections with the same UDP
packet payload can be assigned to the same real service.
IMPORTANT:
Destination address hashing is applicable to firewall load balancing mode
and other algorithms are applicable to server load balancing.
Offset
Length
If you select UDP Packet Load Hash as the algorithm, this field is used to
set the payload for performing hash algorithm.
The payload field is determined by offset and length. Offset refers to the
relative position of the payload content with respect to the whole payload of
a packet; length refers to the length of the payload content starting from the
offset. You can specify up to 10 payload fields.