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Power over Ethernet. In this configuration, an Ethernet connection includes Power over Ethernet (PoE) (gray cable looping below), and a PoE splitter provides a separate data cable (gray, looping above) and power cable (black, also looping above) for a wireless access point (WAP). The splitter is the silver and black box in the middle between ...
Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).
The Link Layer Discovery Protocol ( LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on a local area network based on IEEE 802 technology, principally wired Ethernet. [ 1] The protocol is formally referred to by the IEEE as Station and Media Access Control ...
Ethernet. The Point-to-Point Protocol over Ethernet ( PPPoE) is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet frames. It appeared in 1999, in the context of the boom of DSL as the solution for tunneling packets over the DSL connection to the ISP 's IP network, and from there to the rest of the Internet.
Products in this category are Cisco's range of routers, switches, wireless systems, security systems, WAN acceleration hardware, energy and building management systems and media aware network equipment. [ 1][ 2] Collaboration. IP video and phones, TelePresence, HealthPresence, unified communications, call center systems, enterprise social ...
VNC—Virtual Network Computing; VOD—Video On Demand; VoIP—Voice over Internet Protocol; VPN—Virtual Private Network; VPS—Virtual Private Server; VPU—Visual Processing Unit; VR—Virtual Reality; VRML—Virtual Reality Modeling Language; VSAM—Virtual Storage-Access Method; VSAT—Very Small Aperture Terminal; VT—Video Terminal ...
A VPN maintains an authenticated, encrypted tunnel for securely passing data traffic over public networks (typically, the Internet.)Other VPN types are IPsec VPNs, which are useful for point-to-point connections when the network endpoints are known and remain fixed; or SSL VPNs, which provide for access through a Web browser and are commonly used by remote workers.
TACACS and XTACACS both allow a remote access server to communicate with an authentication server in order to determine if the user has access to the network. TACACS Plus ( TACACS+ ) is a protocol developed by Cisco and released as an open standard beginning in 1993.