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Server Load Balancing Overview
Server Health Monitoring
Alcatel-Lucent's Server Load Balancing (SLB) software on the switch performs checks on the links from
the switch to the servers. In addition, the SLB software also sends ICMP echo requests (ping packets) to
the physical servers to determine their availability.
Note. You can use the
Load Balancing Status and Statistics" on page
These health checks performed by the switch are used by the SLB software to determine the operational
states of servers. The possible operational states are described in the table below:
Operational States
Disabled
No Answer
Link Down
Discovery
In Service
Retrying
In Release 5.1.6 and later you can configure probes to monitor the health of clusters and servers. See
"Configuring SLB Probes" on page 19-18
page 19-10
show ip slb cluster server
19-22, to display link and ping status of physical servers.
The server has been administratively disabled by the user.
The server has not responded to ping requests from the switch.
There is a bad connection to the server.
The switch is pinging a physical server.
The server can be used for client connections.
The switch is making another attempt to bring up the server.
for more information.
OmniSwitch AOS Release 7 Network Configuration Guide
Configuring Server Load Balancing
command, which is described in
"Displaying Server
March 2011
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