Enterprise Extender connects SNA clients to the mainframe over an IP backbone by using the UDP protocol.
From an SNA view, Enterprise Extender is a logical link that is defined as an XCA (eXternal Communications Adapter) major node and a switched major node. Each LPAR can have only one active Enterprise Extender XCA major node. The Sessions action provides a view of Enterprise Extender sessions at the SNA node level.
From an IP view, Enterprise Extender is UDP traffic over the IP backbone. The UDP port activity action provides visibility of Enterprise Extender at the UDP port level.
The IP Resource Monitor lets you manage Enterprise Extender connections by providing both SNA and IP views of Enterprise Extender communications.