Drag the networking layer on the left to the appropriate identity type on the right. Layers can be used more than once. Not all layers will be used.
Unlike other networking technologies, Fibre Channel (FC) does not make use of the Open Systems Interconnection (OSI) network model. Instead, FC uses the FC-Layers model, which is broken out in the following fashion:
– FC4: Protocol mapping layer
– FC3: Common services layer
– FC2: Network layer
– FC1: Data link layer
– FCO: Physical layer
– FCO, FC1, and FC2 have similar names and functions to their OSI model equivalents, which are Layer 1, Layer 2, and Layer 3, respectively. FC3 is equivalent to the OSI model’s Transport layer, or Layer 4. FC4, on the other hand, is similar in function to a combination of all three top layers of the OSI model, which are the Session layer (Layer 5), the Presentation layer (Layer 6), and the Application layer (Layer 7).
World Wide Node Names (WWNNs) are 64-bit globally unique identifiers that specify a given FC node. These identifiers are typically used to assign FC1 addresses in storage area network (SAN) routing. Similar to WWNN identities, World Wide Port Name (WWPN) identities are globally unique 64-bit identifiers that are used to assign FC1 addresses. However, WWPNs represent a specific FC port, not an entire node.
Media Access Control (MAC) identities are MAC addresses, which are OSI Layer 2 48-bit hexadecimal addresses that are typically burned into a network interface card (NIC). The first 24 bits of a MAC address represent the Organizationally Unique Identifier (OUD), which is a value that is assigned by the Institute of Electrical and Electronics Engineers (IEEE). The OUI identifies the NIC’s manufacturer. The last 24 bits of a MAC address uniquely identify a specific NIC constructed by the manufacturer. This value is almost always an identifier that the manufacturer has never before used in combination with the OUI.
Internet Protocol (IP) identities are IP addresses, which are 32-bit decimal addresses that are assigned to OSI Layer 3 interfaces. In a Cisco Unified Computing System (UCS) domain, IP pools are typically used to assign one or more management IP addresses to each server’s Cisco Integrated Management Controller (IMC).