Juniper MEDIA FLOW MANAGER 2.0.2 - ADMINISTRATOR S GUIDE AND CLI, Руководство администратора

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CHAPTER 1 Preface Media Flow Manager Administrator’s Guide
20 Typographical Conventions Copyright © 2010, Juniper Networks, Inc.
Typographical Conventions
Table 1 describes the typefaces used in this book.
Terminology
This section provides definitions for Juniper Networks and industry-standard terms that may
be unfamiliar to the reader.
AFR
Assured Flow Rate. An Media Flow Controller option that, when enabled, ensures that
media content is delivered at a rate that is minimally needed for the video to play smoothly.
Bit-rate
A data rate (the amount of data transferred in one direction over a link divided by the
time taken to transfer it) expressed in bits per second. Juniper Networks notation examples:
Kbps
(kilobits per second),
KB/s
(kilobytes per second).
Edge cache
An appliance placed between the Internet and the Web server which caches
content (like Java Script, CSS, images, etc.) and delivers them for the Web server, freeing up
that server for other processes. Media Flow Controller as an edge cache is effectively a
“reverse proxy,” that provides these benefits: reduces the load (network and CPU) on an origin
server by servicing previously retrieved content and enhances the user experience due to a
decrease in latency.
Full Download
A media delivery mode in which the entire media file is downloaded before
playback begins; contrast with Progressive Download (see PDL, Progressive DownLoad ).
Table 1 Typefaces Used in This Book
Typeface Use Example
Arial Ordinary text. The origin server organizes media
content hierarchically.
Arial Bold
Commands in running text, and
screen elements such as page
titles, and option labels. Use the
interface
command to
configure IP addresses.
In the Management Console, use
the
Setup > Date and time
page.
Arial Italic
Book titles, and emphasis. See the
Juniper Networks Media
Flow Manager Administrator’s
Guide and CLI Command
Reference
Courier New
Text displayed online at a
command line.
Please enter your IP
address
Courier New
Bold
Text that you type exactly as
shown; variables are shown in
chevrons (< > ), parameters (which
may include variables) are shown
in box brackets ([ ]), options are
shown in curly brackets ({ }). Run-
on lines are indicated by an indent
(as shown at right).
interface eth0 ip
address <IP address>