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14. Wireless Network Glossary
Simple Network Management Protocol. A set of protocols for managing complex
networks.
The SNMP network contains 3 key elements: managed devices, agents, and
network-management systems (NMSs). Managed devices are network devices that
content SNMP agents. SNMP agents are programs that reside SNMP capable device's
firmware to provide SNMP configuration service. The NMS typically is a PC based
software such as HP Openview that can view and manage SNMP network device remotely.
SSH
Developed by SSH Communications Security Ltd., Secure Shell is a program to log into
another computer over a network, to execute commands in a remote machine, and to move
files from one machine to another. It provides strong authentication and secure
communications over insecure channels. It is a replacement for rlogin, rsh, rcp, and rdist.
SSL
Secure Sockets Layer. It is a popular encryption scheme used by many online retail and
banking sites to protect the financial integrity of transactions. When an SSL session
begins, the server sends its public key to the browser. The browser then sends a randomly
generated secret key back to the server in order to have a secret key exchange for that
session. SSL VPN is also known as Web VPN. The HTTPS and SSH management
interface use SSL for data encryption.
Subnet Mask
An address code mask that determines the size of the network. An IP subnet are
determined by performing a BIT-wise AND operation between the IP address and the
subnet mask. By changing the subnet mask, you can change the scope and size of a
network.
Subnetwork or Subnet
Found in larger networks, these smaller networks are used to simplify addressing between
numerous computers. Subnets connect to the central network through a router, hub or
gateway. Each individual wireless LAN will probably use the same subnet for all the local
computers it talks to.
Super A
Super A is an Atheros proprietary turbo mode to increase speed over standard 802.11a
mode. It adds Bursting and Compression to increase the speed. If you live in countries
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