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Glossary
E
External and Internal Border Gateway Protocol.
eiBGP
The technique used by layered protocols in which a layer adds header information to the protocol data
encapsulation
unit (PDU) from the layer above.
One of the most common local area network (LAN) wiring schemes, Ethernet has a transmission rate
Ethernet
of 10, 100, or 1000 Mbps.
F
Cisco feature whereby a route cache is used to expedite packet switching through a router.
Fast switching
Federal Communications Commission. A U.S. government agency that regulates interstate and foreign
FCC
communications. The FCC sets rates for communication services.
File Transfer Protocol. The Internet protocol used to transfer files between hosts.
FTP
G
Gigabit Ethernet.
GE
Generic Route Encapsulation. A method of encapsulating any network protocol in another protocol.
GRE
H
Also called high VC mode. A technique used to optimize processes for session scaling.
high VC count
Home Gateway. Also known as L2TP Network Server (LNS) in L2TP contexts.
HGW
A measure of distance between two points on the Internet. It is equivalent to the number of gateways
hop count
that separate the source and destination.
Hypertext Markup Language. The page-coding language for the World Wide Web.
HTML
Hypertext Transfer Protocol. The protocol used to carry world-wide web (www) traffic between a www
http
browser computer and the www server being accessed.
I
Internet Control Message Protocol. The protocol used to handle errors and control messages at the IP
ICMP
layer. ICMP is actually part of the IP protocol.
Cisco 10000 Series Router Software Configuration Guide
GL-4
OL-2226-23
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Table of Contents
Troubleshooting
