1.6. Explanation of Common TermsΒΆ
This section explains common terms used in Enterprise Cloud.
Term | Definition |
Compute Resource | A service that provides the virtual resources (CPU/Memory/Disk) to create Virtual Machines. |
Compute Resource Pool (CRP) | A resource management unit (pool) created in Compute Resource |
Compute Class | A name for distinguishing the performance of a CPU and Memory |
Storage Class | A name for distinguishing the performance of a Disk |
Compute Resource (Dedicated Device) | A service that provides virtual resources (CPU/Memory/Disk) using devices (physical server, storage devices) that are dedicated to the customer |
Server Segment | A service that provides an L2 segment for connecting multiple services to each other in Enterprise Cloud |
Firewall | A device for preventing penetration of Enterprise Cloud from the Internet |
Load Balancer | A virtual dedicated load balancer for allocating requests to multiple servers |
Service Interconnectivity | A service that provides interconnectivity between Enterprise Cloud and other services |
VPN Connectivity | A service that provides VPN Connectivity through an application connection service for customers of the Arcstar Universal One service (NTT Communications’ VPN service) |
Gateway | A device required to communicate by connecting networks together |
VPN Gateway | A device for connecting a VPN to Enterprise Cloud |
VPN Transit | A device for connecting between VPN Gateway and vFirewall |
Internet Connectivity | A service that provides Internet Connectivity for customers of Enterprise Cloud |
Internet GW | A device for connecting the internet to Enterprise Cloud |
Internet Transit | A device for connecting between the Internet GW and the vFirewall |
Private Catalog | A service that provides an area where customers can store their own templates for creating Virtual Machines |
Global File Storage (Global Data Backup) | A service that provides an External Storage area for storing backup data |
On-Premises Environment | Your operational system environment at your company |
On-Premises Interconnectivity | A service that provides a secure L2 connection between Server Segments in Enterprise Cloud and an On-Premises Environment, through the internet |
Colocation | Installation of your system at a Data Center |
Colocation Interconnectivity | A service that provides a secure L2 connection between the Server Segments in Enterprise Cloud and your system environment within NTT Communications Colocation, via our inter-Data Center network |
On-Premises GW in a Data Center | A device for connecting between an NTT Communications Data Center and the Internet for On-premises Connectivity |
On-Premises GW in Your On-Premises Environment | A device for connecting between your On-Premises Environment and the Internet, in order to establish On-premises Connectivity |
IPS (Intrusion Prevention (Protection) System) | A system for preventing intrusions |
IDS (Intrusion Detection System) | A system for detecting intrusions |
Signature | A list in which known attack patterns and malware patterns are converted into data |
Policy | Rules for detecting and interrupting communication |
RPS (Requests Per Second) | The number of requests that are processed per second
* The numerical value when the server makes one connection (when using One Connect on the server side) for multiple connections to a client.
|
CPS (Connections Per Second) | The number of connections that are processed per second
* The numerical value when the server makes one connection for one connection to a client.
|
UTM/Unified Thread Management | Integrate security function different in plural into one appliance and do network management intensively. |
C&C Server (Command and Control Server) | The server that sends commands and becomes the center of control for a computer infected with malware |
PCR | Policy Change Request(Customer can request policy change to NTT Communications) |
Active Device | A device that has priority of use |
Standby Device | A device that is used when there is an error on the active device |
vApp | A container for Virtual Machines managed by VMware. |