User manual

The WebMux Pro and Model WM108E User Guide – Version 5. 8 Rev15
Copyright© 1997-2004 CAI Networks, Inc.
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CAUTION: Like the IP address, once created, the port number cannot be changed. To correct
the port number, the old server needs to be deleted and a new one to be created.
Weight:
Scheduling priority weight. Valid integer numbers are between 1 and 100. A
server that has a weight of 2 will be directed twice as much traffic as a server
with a weight of 1.
A special zero weight setting is provided for a graceful shut down of a server.
When the weight is changed to zero, the WebMux will not send new connections,
but will maintain all current connections to the server. The connections will
gradually reduce to zero as current clients’ sessions terminated. When there are
no connections, the server is functionally “dead” or off line until the weight is
changed back to a valid number. Then the server can then be shutdown or taken
out of service without affecting any users.
Caution: Unlike a server that can go down unexpectedly, the WebMux will not move a STANDBY
server to ACTIVE when one or more server's weight is set to zero. If the weight of all the servers
in a farm were set to zero, then the farm would be “down” because none of the servers are
accepting new connections.
Run State
Active - The server will be put into service immediately after it is added.
However, once it is failed, it will stay Standby mode, until manually set its
run state to Active again through the browser interface. This will give
system administrator time to fix the system or reboot the server once
some software/hardware update is going on.
Favorite Active The server will be put into services immediately after it
is added. If a Favorite Active server failed, once it is operational, WebMux
will automatically put it back to the Active state.
Standby - The server will be put into STANDBY, or backup, mode after it
is added. The WebMux will change a STANDBY server to ACTIVE when
one or more ACTIVE servers fail.
Last Resort Standby – The server will be put into STANDBY state,
unless all other servers are out of services, this server will not be switch
in. This will allow the last server to show a different web page from others.