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 | AAA | Authentication, authorization, and accounting, pronounced triple A. | ||||
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 | access list | A list kept by routers to control access to or from the router for a number of | ||||
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 | services (for example, to prevent packets with a certain IP address from | ||||
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 | leaving a particular interface on the router). | ||||
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 | AIM | Asynchronous interface module. Type of network module. | ||||
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 | appliance | Alternate term for network module. | ||||
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 | ARP | Address Resolution Protocol. Internet protocol used to map an IP address to | ||||
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 | a MAC address. | ||||
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 | blade | Alternate term for network module. | ||||
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 | boothelper | See helper. | ||||
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 | bootloader | A small set of system software that runs when the system first powers up. It | ||||
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 | loads the operating system (from the disk, network, external flash, or | ||||
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 | external USB flash), which loads and runs the  | ||||
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 | The bootloader might optionally load and run the boothelper. | ||||
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 | CEF | Cisco Express Forwarding | ||||
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 | DSMON | Differentiated Services Monitoring | ||||
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 | Flooding | Traffic passing technique used by switches and bridges in which traffic | ||||
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 | received on an interface is sent out all the interfaces of that device except the | ||||
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 | interface on which the information was received originally. | ||||
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 | FTP | File Transfer Protocol. Application protocol, part of the TCP/IP protocol | ||||
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 | stack, used for transferring files between network nodes. | ||||
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 | GRE | Generic routing encapsulation. Tunneling protocol developed by Cisco that | ||||
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 | can encapsulate a wide variety of protocol packet types inside IP tunnels, | ||||
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 | creating a virtual  | ||||
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 | an IP internetwork. By connecting multiprotocol subnetworks in a | ||||
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 | network expansion across a  | ||||
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 | GUI | Graphical user interface. A user environment that uses pictorial as well as | ||||
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 | textual representations of the input and the output of applications and the | ||||
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 | hierarchical or other data structure in which information is stored. Such | ||||
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 | conventions as buttons, icons, and windows are typical, and many actions are | ||||
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 | performed using a pointing device (such as a mouse). Microsoft Windows | ||||
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 | and the Apple Macintosh are prominent examples of platforms using a GUI. | ||||
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 | helper | A small subset of the system software that runs on the module. It boots the | ||||
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 | (previously known as module from the network and assists in software installation and upgrades, | |||||
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 | boothelper) | disaster recovery, and other operations when the module cannot access its | ||||
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 | software. | ||||
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 | IP Multicast | Routing technique that allows IP traffic to be propagated from one source to | ||||
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 | a number of destinations or from many sources to many destinations. Rather | ||||
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 | than sending one packet to each destination, one packet is sent to a multicast | ||||
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 | group identified by a single IP destination group address. | ||||
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 | Cisco Branch Routers Series Network Analysis Module  | 
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