HP BladeSystem bc2800 Embedded Web System User Guide for the HP BladeSystem PC - Page 198

Glossary Auto-negotiation Allows 10/100 Mbps or 10/100/1000 Mbps Ethernet ports to establish for the following features: • Duplex/ Half Duplex Mode. • Flow Control. • Speed. B Back Pressure A mechanism used with Half Duplex mode that enables a port not to receive a message. Backbone The main segment of a network. Backbone types include: • Building. • Campus. • Metropolitan. • National Data. • Telecommunications. Backplane The main BUS that carries information in the device. Bandwidth Specifies the amount of data that can be transmitted in a fixed amount of time. For digital devices, bandwidth is defined in Bits per Second (bps) or Bytes per Second. Bandwidth Assignment Indicates the amount of bandwidth assigned to a specific application, user, and/or interface. Baud Indicates the number of signaling elements transmitted each second. Best Effort Indicates that traffic is assigned to the lowest priority queue, and packet delivery is not guaranteed. BGP Border Gateway Protocol. Enables information sharing, routing information between groups of routers. Boot Version Indicates the boot version. BootP Bootstrap Protocol. Enables a workstation to discover its IP address, an IP address of a BootP server on a network, or a configuration file loaded into the boot of a device. BPDU Bridge Protocol Data Unit. Provides bridging information in a message format. BPDUs are sent across switch information with in Spanning Tree configuration. BPDU packets contain information on ports, addresses, priorities, and forwarding costs. Bridge A device that connects two networks. Bridges are hardware-specific, however they are protocol-independent. Bridges operate at Layer 1 and Layer 2 levels. Glossary-2 www.hp.com Embedded Web System User Guide