Huawei quidway s7700 Configuration Manual page 266

Quidway S7700 Smart Routing Switch
Configuration Guide - SPU
Step 9 Run:
member member-name
A server is bound to the server group and the server instance view is displayed.
Step 10 (Optional) Run:
rate-limit { bandwidth { inbound | outbound } band-limit [ threshold threshold-
value ] | connection conn-limit }
The bandwidth limit, bandwidth threshold for receiving new traffic, and connection rate limit
of the server instance are set.
By default, the connection rate of a server instance is not limited, the inbound/outbound
bandwidth limit is 1000000 kbit/s, and the inbound/outbound bandwidth threshold is 100%.
When the values of the bandwidth limit, connection rate limit, or bandwidth threshold of a server
instance and a server are set simultaneously, both the values of the server instance and the server
take effect. For example, the bandwidth limit of a server is 200 kbit/s and server instance A and
server instance B are configured on the server. The bandwidth limit of server instance A is 200
kbit/s and the bandwidth limit of server instance B is 100 kbit/s. When selecting a link, the
S7700 needs to consider the bandwidth limit of the server instance and server. That is, the total
bandwidth of server instance A and link server B cannot exceed the bandwidth of the server.
Step 11 (Optional) Run:
conn-limit max limit
The maximum number of connections of the server instance is set.
When the number of connections of a server instance exceeds the set value, the SPU does not
send user requests to the server instance for processing.
By default, the maximum number of connections of a server instance is 4000000.
Step 12 (Optional) Run:
priority level
The priority of the server instance is set.
When the priorities of a server instance and a server are set simultaneously, the priority of the
server instance takes effect.
If the priority of a server instance is not set, the SPU uses the priority of a server. If the priority
of the server is not set, the SPU adopts the default value.
By default, the priority of a server instance is 8.
Step 13 (Optional) Run:
weight weight-value
The weight of the server instance is set.
Issue 01 (2011-07-15)
NOTE
If the maximum numbers of connections of a server and a server instance are set, the SPU checks whether
the value reaches the maximum number of connections of the server instance. If yes, the SPU rejects new
connections. Then the SPU compares the value with the maximum number of connections of the server.
If yes, the SPU rejects new connections.
NOTE
The priority is only valid for the WRR algorithm and the least connection algorithm.
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6 Load Balancing Configuration
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