The Internet Security Association & Key Management Protocol (ISAKMP) provides a framework for Internet key management and provides the specific protocol support for negotiation of security attributes. By itself, it does not establish session keys, however it can be used with various session key establishment protocols, such as Oakley, to provide a complete solution to Internet key management.
ISAKMP
Meaning of ISAKMP in English
DAX English glossary of key connectivity terms. Английский глоссарий основных терминов по коммуникациям DAX. 2012