Technical data

11 Configuring Network Resources
11-4 Creating and Configuring WebLogic Server Domains
ServerMBean and SSLMBean represent a server instance and its SSL configuration.
When you configure a server instance’s Listen Address, Listen Port, and SSL Listen
port, using the Server-->Configuration-->General tab, those values are stored in the
ServerMBean and SSLMBean for the server instance.
If you do not specify a particular connection attribute in a custom channel definition,
the channel inherits the value specified for the attribute in
ServerMBean. For
example, if you create a channel, and do not define its Listen Address, the channel will
use the Listen Address defined in
ServerMBean. Similarly, if a Managed Server
cannot bind to the Listen Address or Listen Port configured in a channel, the Managed
Server uses the defaults from
ServerMBean or SSLMBean.
Why Use Network Channels?
You can use Network Channels to manage quality of service, meet varying connection
requirements, and improve utilization of your systems and network resources. For
example, Network Channels allow you to:
! Segregate different types of network traffic—You can configure whether or
not a channel supports outgoing connections. By assigning two channels to a
server instance—one that supports outgoing connections and one that does not—
you can independently configure network traffic for client connections and
server connections, and physically separate client and server network traffic onto
different listen addresses or listen ports.
You can also segregate instance administration and application traffic by
configuring a domain-wide administration port. For more information, see
“Administrative Channel” on page 11-7.
! Support varied application or user requirements on the same Managed
Server—You can configure multiple channels on a Managed Server to support
different protocols, or to tailor properties for secure vs. non-secure traffic.
! Prioritize network connections that servers use to connect to other servers
in a domain—If a server instance has several outbound-capable channels
assigned, you can prioritize each channel with a weighted value. When the
server instance initiates an outgoing connection, the channels with a
higher-weighted value are used before those with lower-weighted channels. You
can use this functionality to ensure that all server-to-server traffic has a