Huawei quidway s7700 Configuration Manual page 260

Quidway S7700 Smart Routing Switch
Configuration Guide - SPU
l
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
load-balance ip interface interface-type interface-number
The IP address of a sub-interface is obtained and used as the source IP address of probing packets
of a probe.
The interface type can be XGE sub-interface, loopback interface, or Eth-Trunk sub-interface.
Step 3 Run:
load-balance probe probe-name [ http | icmp | udp | tcp ]
A probe is created or the probe view is displayed.
When creating a probe, you must specify the probe type. When you enter the view of the created
probe, you can choose not to specify the probe type.
Up to 1024 probes can be created, including ICMP probes, TCP probes, UDP probes, and HTTP
probes.
By default, no probe is configured.
Step 4 (Optional) Run:
description description
The description of the probe is configured.
Issue 01 (2011-07-15)
for the specified number of times in the specified time and the data carried in the response
packets is the same as the expected response data, it considers the probing to be successful
and sets the server to Up.
HTTP probe
An HTTP probe establishes a TCP connection with an HTTP interface of a server in a server
group, and then sends HTTP requests.
If the SPU consecutively receives response packets of the server for the specified number
of times and the return status code is the same as the expected response data, it sets the
server to Up. If the SPU does not consecutively receive response packets of the server for
the specified number of times in the specified time or the return status code carried in the
response packets is different from the expected response data, it considers the probing to
be failed. Then the SPU determines whether to set the server to Down according to the
probe mode set on the server group.
NOTE
When the probe mode is AND, the SPU sets a server to Down only if the probing of all probes fails. When
the probe mode is OR, the SPU sets a server to Down if the probing of a probe fails.
NOTE
l When running the load-balance ip interface command, you can select the specified interface only if
an XGE sub-interface, a loopback interface, or an Eth-Trunk sub-interface is specified.
l A probe does not send probing packets if the specified interface is not configured with an IP address.
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6 Load Balancing Configuration
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