User Manual
Table Of Contents
- 1: Introduction/Overview
- 1.1 Documentation notes
- 1.2 Important safety note
- 1.3 Product introduction
- 1.4 General product handling and operation
- 1.4.1 Protection from water and dust ingress
- 1.4.2 Powering on/off and sleep mode
- 1.4.3 Attaching, detaching, and handling modules
- 1.4.4 Attaching the strap
- 1.4.5 About the touchscreen display
- 1.4.6 Selecting the active interface
- 1.4.7 Running a function or test
- 1.4.8 Repeating a function or test
- 1.4.9 Screen title bar buttons/icons
- 1.4.10 Capturing a screen image (screenshot)
- 1.4.11 Stopping a test
- 1.4.12 Saving results
- 1.4.13 Maximum test duration for continuous tests
- 1.4.14 Interpreting results
- 1.4.15 Important MoCA module compatibility note
- 1.5 Remote control of the unit
- 1.6 Licensed feature details
- 1.7 Maintenance
- 1.8 FTP information
- 1.9 Technical support
- 2: Wi-Fi Testing Menu
- 3: 10/100/1G Testing Menu
- 4: System Menu
- 4.1 Record Manager
- 4.2 Admin Port
- 4.3 Set Date and Time
- 4.4 Sync with PC
- 4.5 Version Info
- 4.6 Battery Status
- 4.7 Download IPTV Channel Guide
- 4.8 Cal Touchscreen
- 4.9 Licensed Options
- 4.10 Update Firmware
- 4.11 System/Module Settings
- 4.11.1 System/Module Settings > Base Unit
- 4.11.2 System/Module Settings > RF Video Module
- 4.11.3 System/Module Settings > ADSL/VDSL2 Module
- 4.11.4 System/Module Settings > Combined Module Default
- 4.11.5 System/Module Settings > MoCA Module
- 4.11.6 System/Module Settings > DOCSIS Module
- 4.11.7 System/Module Settings > CSM Module
- 4.11.8 System/Module Settings > MoCA-RF Module
- 4.11.9 System/Module Settings > Wi-Fi
- 4.12 Taskforce
- 4.13 Signature Capture
- 4.14 Language Selection
- 4.15 Help and Support
- 5: IP and Video Testing
- 5.1 IP Network Setup
- 5.2 Connection Info
- 5.3 Ping
- 5.4 Traceroute
- 5.5 Web Browser
- 5.6 Packet Loss Test
- 5.7 Throughput
- 5.8 Speedtest
- 5.9 IP Video testing
- 5.9.1 Video QoS (Quality of Service)
- 5.9.2 Change Channel
- 5.9.3 Channel Guide Settings
- 6: Specifications
Verizon Base Unit User Guide Rev B PRELIMINARY 3/20/2014 Tech-X Flex
®
(P5)
5-36
Intro
Wi-Fi
10/100
System
IP/Video
Specs
Figure 5-16 Hypothetical multicast network with multicasting and IGMP
In this example, the routers are multicast-aware and can make intelligent decisions about packet
forwarding. The routers control the forwarding of multicast packets, with those routers directly connected
to multicast group members using Internet Group Management Protocol (IGMP) to manage the
duplication and forwarding of packets to individual group members.
In a multicast-enabled network, multicast routers interact and dynamically maintain a logical tree for
routing multicast packets, in order to efficiently deliver the required packets to each subnet that requests
them. If no subscribers on a particular subnet are members of a given multicast group (for example, no
one on a particular subnet is viewing a particular audio/video stream), the network may automatically
adjust to avoid multicasting that stream to that subnet. Similarly, when a host on a subnet successfully
joins a group, the network will dynamically extend a branch of the respective multicast tree to the router
serving the host. In summary, therefore, multicasting improves transport efficiency both by eliminating
redundant packets from the same media source, and by eliminating the indiscriminate broadcast of any
packets to branches in the network that have no hosts requesting them.
Note that multicasting is a form of “selective broadcasting,” where packets from the source are simply
duplicated as necessary and forwarded onto the respective links, all the way down the multicast tree to
each requesting group member. IP multicast routers use specialized multicast routing protocols such as
R2
R3
R1
R4
R5