Glossary 327
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
NetFlow
NetFlow technology is an integral part of Cisco IOS software that collects and measures data as
it enters specific routers or switch interfaces. By analyzing NetFlow data, a network manager
can identify the cause of congestion; determine the class of service (CoS) for each user and
application; and identify the source and destination network for your traffic.
non-unicast
A reference to the combination of broadcast and multicast packets; those packets that are not
unicast.
Packets Dropped
A PATROL DashBoard indicator that reports the percentage of ICMP packets dropped when
measuring the round-trip time between two network devices.
PATROL Agent
The core component of PATROL architecture. The agent is used to monitor and manage host
computers and can communicate with the PATROL console, a stand-alone event manager
(PEM), PATROL Integration products, and SNMP consoles. Integrating PATROL Agents and
KMs into BMC Software Application Centric Network Management (ACNM) solutions extends
these network-oriented management solutions to the management of applications and services.
peer
One party in a communications model in which each party has the same capabilities and either
party can initiate a communication session (contrast with the client/server model and the
master/slave model). In some cases, peer-to-peer communications is implemented by giving
each communication node both server and client capabilities.
On the Internet, peer-to-peer (referred to as P2P) is a type of transient Internet network that
allows a group of computer users with the same networking program to connect with each
other and directly access files from one another's hard drives.
plug-in
A software program that extends the capabilities of the Netscape browser in a specific way (for
example, providing the ability to play audio files or view video).
Points to Watch report
A PATROL DashBoard report that highlights the greatest trends and the indicators with the
shortest time to threshold remaining.
policy
In policy-based networking, a formal set of statements that define how the network’s resources
are to be allocated among its clients. Resources can be allocated based on time of day, client
authorization priorities, availability, and other factors, and allocation can be static or dynamic
(based on variations in traffic). Policies and policy statements are created by network managers
and stored in a policy repository. During network operation, policies are retrieved and used by
network management software to make decisions. Ideally, policy statements would be written
