- In this version, the main difference is that we define a new - Diameter Application for ERP. This allows the routing of Diameter - messages containing ERP payload to the appropriate realm and server, - and permits more flexibility in the deployment of ERP : with the - previous design from version -00, the ER server had to be collocated - with the EAP server (Editor's note: well, it was not written clearly - in the document, but it was the only working situation), which might - result in some deployment and scalability issues. - - The format of the newly defined AVP has also changed: we now define - two grouped AVP to transport the key request and key material. Grouped - AVP allow a more efficient parsing of the message, and keeps the - correlation of related information such as key name, key - lifetime... -