HP BladeSystem bc2800 Embedded Web System User Guide for the HP BladeSystem PC - Page 199

Glossary Broadcast Domain Device sets that receive broadcast frames originating from any device within a designated set. Routers bind broadcast domains, because routers do not forward broadcast frames. Broadcast Storm An excessive amount of broadcast messages simultaneously transmitted across a network by a single port. Forwarded message responses are heaped onto the network, overloading network resources or causing the network to time out. Broadcasting A method of transmitting packets to all ports on a network. Burst A packet transmission at faster than normal rates. Bursts are limited in time and only occur under specific conditions. Burst Size Indicates the burst size transmitted at a faster than normal rate. C CBS Committed Burst Size. Indicates the maximum number of data bits transmitted within a specific time interval. CDB Configuration Data Base. A file containing a device's configuration information. CIR Committed Information Rate. Indicates the rate (Bps) that data is transmitted using frame relay services (FRS). The rate is averaged over a minimum time increment. Class Map An aspect of Quality of Service system that is comprised of an IP ACL and/or a MAC ACL. Class maps are configured to match packet criteria, and are matched to packets in a first-fit fashion. Class of Service Class of Service (CoS). The 802.1p priority scheme. CoS provides a method for tagging packets with priority information. A CoS value between 0-7 is added to the Layer II header of packets, where zero is the lowest priority and seven is the highest. Classless Inter-Domain Routing (CIDR) Based on route aggregation. Creates new addresses on the internet. The new addresses are distributed to ISPs for their customers' use. CIDR reduces the Internet routers' burden by combining routes. One IP address represents thousands of addresses serviced by a major backbone provider. Several IP networks appear to networks outside the group as a single, larger entity. CLI Command Line Interface. A set of line commands used to configure the system. Client A computer system or process that requires services or processes for another computer, typically a server. CLL Classification Control Lists. Devices that grant, deny, or limit access to devices, features, or applications in QoS. Collision A overlapping transmission of two or more packets that collide. The data transmitted cannot be used, and the session is restarted. Embedded Web System User Guide www.hp.com Glossary-3