Information Technology Reference
In-Depth Information
Cisco Intrusion Prevention System Device Manager (IDM)
A web-based application that
configures and manages IPS sensors.
Cisco Nexus 1000V virtual switch for VMware ESX and ESXi
Helps deliver visibility and
policy control for virtual machines (VM).
Cisco Router and Security Device Manager (SDM)
A web-based tool for routers that sup-
ports a wide range of IOS software.
Cisco Secure Access Control Server (ACS)
Provides centralized control for administrative
access to Cisco devices and security applications.
Cisco Security Manager (CSM)
An integrated solution for configuration management of
firewall, VPN, router, switch module, and IPS devices.
Cisco Security Monitoring, Analysis, and Response System (MARS)
An appliance-based
solution for network security administrators to monitor, identify, isolate, and respond to secu-
rity threats.
Cisco Unified Computing System (UCS)
An innovated next-generation data center platform
that converges computing, network, storage, and virtualization together into one system.
CO
Central office.
Codec
Coder-decoder. Transforms analog signals into digital bit streams.
companding
Comes from “compressing and expanding.” The analog samples are com-
pressed into logarithmic segments decoder.
configuration management
Refers to baselining, modifying, and tracking configuration
changes.
core layer
Provides fast transport between distribution switches within the enterprise cam-
pus. Provides high-speed switching backbone with high reliability and redundancy.
cRTP
Compressed RTP. Reduces header overhead from 40 bytes to 2 to 4 bytes.
CSMA/CA
Carrier sense multiple access with collision avoidance.
CSMA/CD
Carrier sense multiple access collision detection. Access protocol for Ethernet
shared media.
CUCM
Cisco Unified Communications Manager. The call processing server.
data center access layer
The data center access layer's main purpose is to provide Layer 2
and Layer 3 physical port density for various servers in the data center.
data center aggregation (distribution) layer
Aggregates Layer 2/Layer 3 links from the
access layer and connects with upstream links to the data center core.
data center core
Connects the campus core to the data center aggregation layer using high
speed Layer 3 links.
data center space element
Defines the number of racks for servers and telecommunications
equipment that can be installed.
