HP StorageWorks 2/16V Brocade Glossary (53-1000040-03, November 2006) - Page 29

Glossary Ports on Demand A licensed feature available on certain switches, such as the SilkWorm 200E. These switches are shipped with some but not all of the physical ports on the switch activated. A POD license is used to activate the remaining ports on the switch. Usually more than one POD license is required to enable all the ports on the switch. port_name The unique identifier assigned to a Fibre Channel port. Communicated during login and port discovery. POST Power-on self-test. A series of tests run by a switch after it is turned on. PPID Unique static identifier for each blade in a bladed server. It resides on a printed label and on an electronic tag on the card. PPP Point-to-Point Protocol. primary FCS switch Relates to the Brocade Secure Fabric OS feature. The primary fabric configuration server switch actively manages security and configurations for all switches in the fabric. See also backbone fabric and FCS switch. primitive sequence An ordered set that is transmitted repeatedly and continuously. Primitive sequences are transmitted to indicate specific conditions within or conditions encountered by the receiver logic of an FC_Port. See also OLS, NOS. primitive signals An ordered set that indicates actions or events and requires just one occurrence to trigger a response. IDLE and R_RDY are used in all three topologies: ARB, OPN, and CLS. MRK is used in arbitrated loop. principal switch The switch within a fabric that is responsible for assigning unique domain IDs to other switches. The principal switch is determined either by the lowest switch WWN, the fabricPrincipal command, or the order in which the switches are cabled and powered on. private device A device that supports arbitrated-loop protocol and can interpret 8-bit addresses but cannot log in to the fabric. private key The secret half of a key pair. See also key and key pair. private loop An arbitrated loop that does not include a participating FL_Port. private loop A device that supports a loop and can understand 8-bit addresses but does not log in to the fabric. device private An NL_Port that communicates only with other private NL_Ports in the same loop and does not log in NL_Port to the fabric. protected A Web Tools module to which you must log in if upfront login is disabled. Protected modules allow you module to modify the switch information. The Switch Admin and Zoning modules are protected modules. protocol A defined method and set of standards for communication. Determines the type of error-checking, the data-compression method, how sending devices indicate an end of message, and how receiving devices indicate receipt of a message. Brocade Glossary 25 Publication Number: 53-1000040-03