Netopia Router PN Series - Manual (Page 280)

GL-10 Reference Guide
hop count: The number of routers a packet has gone through. If
there are six routers between source and destination nodes, the
hop count for the packet will be six when it arrives at its destination
node. The maximum allowable hop count is usually 15.
hop count reduction: A feature of AURP supported by the Netopia
ISDN Router. Tunnels and point-to-point links over WANs can often
exceed the maximum allowable hop count of 15 routers. Network
administrators can use the hop count reduction feature to set up
tunnels and point-to-point links that exceed the 15-router limit.
host: A single, addressable device on a network. Computers,
networked printers, and routers are hosts.
Host Computer: A communications device that enables users to
run applications programs to per form such functions as text editing,
program execution, access to data bases, etc.
Ingress: Frame Relay frames from an access device toward the
frame relay network. Contrast with Egress.
Interface Device: Provides the inter face between the end
device(s) and a frame relay network by encapsulating the user’s
native protocol in frame relay frames and sending the frames
across the frame relay backbone. See also
Encapsulation and
Frame-Relay-Capable Interface Device.
internet: A set of networks connected together by routers. This is a
general term, not to be confused with the large, multi-organizational
collection of IP networks known as the Internet. An internet is
sometimes also known as an internetwork.
internet address, IP address: Any computing device that uses the
Internet Protocol (IP) must be assigned an internet or IP address.
This is a 32-bit number assigned by the system administrator,
usually written in the form of 4 decimal fields separated by periods,
e.g., 192.9.200.1. Part of the internet address is the IP network
number (IP network address), and part is the host address (IP host
address). All machines on a given IP network use the same IP
network number, and each machine has a unique IP host address.
The system administrator sets the subnet mask to specify how
much of the address is network number and how much is host
address. See also
Class A, B, and C networks.