User guide

110 ExtremeWarePx1 1.2 Command Reference Guide
Commands for Configuring Servers and Services
Server Groups
After servers are conÞgured, they must be organized into server groups. The ExtremeWarePx software
selects a server to handle each connection to a particular server group.
The following commands create and conÞgure server groups.
Virtual Services
A virtual service is the IP address and port to which clients on the Internet actually connect. The
Px-series application switch supports layer 4 and layer 7 virtual services:
¥ A layer 4 virtual service used one particular server group. Any connection to the service is directed
to one of the servers in that group, based on the scheduling policy of the server group. The trafÞc is
not examined.
¥ A layer 7 virtual service can use a number of different server groups. The switch examines a client
request and applies pattern rules for the service to select a server group based on the domain, URL,
or cookie in the request.
The following commands create and remove virtual services.
The following commands conÞgure a layer 7 virtual service.
configure server-group Creates a server group with the specified name and
scheduling policy.
configure server-group add-server Adds one or more servers to a server group.
configure server-group delete-server Deletes one or more servers from a server group.
unconfigure server-group Removes a server group from the system.
configure service L4 Creates a layer 4 virtual service.
configure service L7 Creates a layer 7 virtual service.
unconfigure service Removes a service from the system.
configure domain Creates a domain for the current layer 7 service.
configure domain default Configures the default domain for the current layer 7
service.
configure pattern-rule Creates a pattern rule for the current domain of the
current layer 7 service.
configure pattern-rule default Configures the default pattern rule for the current
domain of a current layer 7 service.
configure pattern-rule default cookie-name Configures the cookie persistence mode for the
current layer 7 service.
unconfigure domain Removes a domain from the current layer 7 service.
unconfigure pattern-rule Removes a pattern rule from the current domain of
the current layer 7 service.