International Institute for Sustainable Development on workshops and international fora that seek to contribute to intergovernmental policy making, and manages a suite of knowledgebases that report on activities that seek to contribute to or implement decisions taken at the intergovernmental policy making level. Intergovernmental processes covered by Earth Negotiations Bulletin include: the Commission on Sustainable Development (CSD); the United Nations Framework Convention on Climate Change (UNFCCC); the Convention on Biological Diversity (CBD); the United Nations Convention to Combat Desertification (UNCCD); the United Nations Forum on Forests; the chemicals conventions (Stockholm, Basel and Rotterdam); the Montreal Protocol on Substances that Deplete the Ozone Layer; the Convention
Subnetwork Access Protocol necessary to determine which protocol is to be invoked to process a service data unit delivered by the lower layer. The most common reference to SAP, including a Source Service Access Point (SSAP) and a Destination Service Access Point (DSAP) refers to the boundary between the Data Link Layer and the Network Layer. It is common to think of SAP only in terms of its use at Layer 2, specifically in its Logical Link Control (LLC) sub-layer as defined in the IEEE 802.2 standards. Link Service Access Point (LSAP) includes both Destination Service Access Point (DSAP) and Source Service Access