Information Technology Reference
In-Depth Information
ASBR
Autonomous System Boundary Router. Connects the OSPF backbone to external net-
works. Routers that inject external LSAs into the OSPF database (redistribution).
authentication
Establishes the user's identity and access to the network resources.
authorization
Describes what can be done and what can be accessed.
accounting
Provides an audit trail of activities by logging the actions of the user.
BGP
Border Gateway Protocol. Routing protocol used to exchange routing information
between autonomous systems.
BHT
Busy-hour traffic. Expressed in Erlangs.
broadband cable
A technology used to transport data using a coaxial cable medium over
cable distribution systems.
BW
Bandwidth. Metric used to determine the best path to a destination network. The high-
est bandwidth is preferred.
cabling in the data center
The cabling in the data center is known as the passive infrastruc-
ture.
CAC
Call admission control. Used to control the bandwidth or number of calls from a site.
CAPWAP
Control and Provisioning for Wireless Access Points.
Catalyst switch
Combines firewall, IPS, SSL VPN, IPsec VPN, DoS mitigation, and virtual
services to build in to security zones.
CCS
Centum Call Second. One call on a channel for 100 seconds.
CDP
Cisco Discovery Protocol. Cisco proprietary protocol that can be used to discover
Cisco network devices. CDP is media and protocol independent, so it works over Ethernet,
Frame Relay, ATM, and other media.
CDR
Call Detail Record.
Centrex
With Centrex services, the CO acts as the company's voice switch, giving the
appearance that the company has its own PBX.
circuit switched
Data connections that can be brought up when needed and terminated
when finished.
Cisco Adaptive Security Device Manager (ASDM)
A web-based tool for managing Cisco
ASA 5500 series appliances, and Cisco Catalyst 6500 Firewall Services Modules (FWSM
Ve r s i o n 3.1 o r l a t e r ) .
Cisco Catalyst switches
Include DoS and man-in-the-middle attack mitigations.
Cisco Identity-Based Network Services (IBNS)
Based on several integrated Cisco solutions
to enable authentication, access control, and user policies to secure network infrastructure
and resources.
