Server Health Monitoring - Alcatel-Lucent OmniSwitch 9900 Series Network Configuration Manual

Configuring Server Load Balancing

Server Health Monitoring

The OmniSwitch Server Load Balancing (SLB) software 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 24-17
OmniSwitch AOS Release 8 Network Configuration Guide
show ip slb cluster server
24-21, 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.
command, which is described in
December 2017
Server Load Balancing Overview
"Displaying Server
page 24-9