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Jinghong
Cable Modem Termination System
JH-HE2086
User Manual
Chongqing Jinghong High-Tech Co., Ltd.
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Copyright.2007 Chongqing Jinghong High Tech Co., Ltd All rights reserved 1
Catalog
Copyright Declaration ............................................................................................................................2
Foreword .................................................................................................................................................3
Packaging introduction..........................................................................................................................4JH-HE 2086 CMTS Operation Guide .....................................................................................................6
Summary ....................................................................................................................................6
1Brief Introduction ..................................................................................................................6
2Features ...............................................................................................................................6
3Index.....................................................................................................................................8
CMTS equipment ports ..............................................................................................................9
1The appearance ...................................................................................................................9
2The rear panel ....................................................................................................................10
3Front panel indicator light ...................................................................................................10
Getting started..........................................................................................................................11
1Cable connection................................................................................................................11
2Request of correlation servers............................................................................................13
3Turn on and turn off ............................................................................................................14
Equipment parameter configuration .........................................................................................14
1Factory setting parameters.................................................................................................14
2Startup steps of the equipment ...........................................................................................15
3Configure the inside up converter.......................................................................................15
4CMTS basic commands .....................................................................................................17
Commonly processing failure...................................................................................................22
1CM unable to online............................................................................................................22
2CM frequently missing. .......................................................................................................23
Common use indices................................................................................................................23
DHCP relay agency conf iguration .......................................................................................................24. DHCP relay agency ...................................................................................................................24Setup CMTS network parameter and realize DHCP relay agent..............................................24Configure DHCP server ...........................................................................................................25
1DHCP server installation.....................................................................................................25
2Configure the scope option.................................................................................................25
Deploy static router on DHCP server .......................................................................................33VDHCP relay agent function test .................................................................................................34
The methods to control the quantity of the CM and to band the MAC address..............................35Operation step..........................................................................................................................35Create configuration files .........................................................................................................35
1About configure files builder ...............................................................................................35
2Configuration file creation steps .........................................................................................36
3Save configuration files ......................................................................................................40
4After saving the configuration files, put it in the directory that TFTP server appointed. ......40
The advanced options configuration on DHCP server .............................................................40Summary..................................................................................................................................42
Appendix 1 Configure the IP address to let the CMTS and the server in the same subnet ........44
Appendix 2 Fix and conf igure TFTP server .....................................................................................48
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Copyright Declaration
Chongqing Jinghong High-tech Co.,Ltd owns all the copyright of this manual. Without the permission of
Jinghong, any organization or individual neither could reprint part nor complete content of this guide
anyway. Chongqing Jinghong High-tech Co.,Ltd has the rights to modify the content, certainly not inform
separately.
The final explanation right of this guide belongs to Chongqing Jinghong High-tech Co.,Ltd.
Chongqing Jinghong high-tech Co., Ltd
copyright 2007
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Foreword
The manual introduces wired and wireless environment based on DOCSIS agreement, how to install,
configure and operate the CMTS. It can also guide users to find out and solve the problems.
This manual is intended for broadband service providers and system administrators. Users of this
manual must be familiar with items as following:
Basic packet forwarding/switching protocols, including Ethernet bridging and TCP/IPl.
Hybrid fiber/coax (HFC) cable networks for cable operators
Fixed point-to-multipoint wireless transmission for wireless operators
The guide primarily can be divided into three parts. The first part is the key point of this guide. It
introduces the characteristic, fixing, configuration and common fault handing in detail with a lot of
examples for analysis. The second part introduces how to construct CMTS IP network. The last part
introduces the methods of controlling PC quantity under CM and how to bind MAC address of PC
network card.
In this guide, we try our best to bring forth new ideas. Provide users guidance with new added function &
characteristic of JH-HE2086 CMTS and plenty of example analysis,.
Chongqing Jinghong High-tech C o., Ltd
copyright 2007
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Packaging introduction
Thanks for buying and using CMTS produced by Chongqing Jinghong High-tech Co.,Ltd.
In order to make the equipments operate chronically and stably, please read this user manual carefully
before start.
Warning: During the process of operation, pull out the coaxial-cable on the back panel is strictly
forbidden. Otherwise, you should be responsible for the damages caused by yourself. Make sure the
working voltage to be 220V 10%.
CMTS full packaging list
Before you install the system, inspect all items in the package to ensure that they are undamaged in
shipment. Check for physical damage to the chassis, and any loose or missing connectors. Any
problems, please contact your service representative for help.
No. Content descript ion Quantity
1 JH-HE2086 CMTS 1
2 100Base-T twisted-pair 2
3 Power cable 1
4 User Manual 2
5 CD 1
Important files in the CD:
No. File name File location Descrip tion
1 CFGEDIT.EXE CD\Configuration file editor Configuration file editor for CM
2 CMTS user manual.pdf CD\User ManualCMTS basic configuration and
user guide
3 cm.cfg CD\CM Configuration Document CM Configuration File
4 SETUP.EXE CD\Network ManagementSoftware
CMTS network managementsoftware install program
5 SN.TXTCD\Network Management
Software
CMTS network management
software install authorized
number
6CMTS option
parameter.txt
CD\Network Management
SoftwareCMTS management
7 login account.txtCD\Network Management
Software
network management software
default system login account
8 permit_number.txt CD\Network ManagementSoftware
authorization files for network
management software to
manage CMTS
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9
network management
software user
manual.pdf
CD\User ManualCMTS network management
software operate guide
Note
Any other content that has not been listed in the table mentioned above are not provided by
Chongqing Jinghong High tech Co.,Ltd.
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JH-HE 2086 CMTS Operation Guide
This chapter mainly describes the appearance characteristics, installation, configuration and how to deal
with general breakdown of the JH-HE 2086 CMTS with examples.
ummary
1
Brief Introduction
Chongqing Jinghong High-tech Co., Ltd is a professional manufacturer of CMTS (Cable Modem
Termination System) equipment in China. Since the first CMTS being produced in January 2000, we
have launched several models of products in CMTS series.
JH-HE 2086 is a new generation of CMTS that we launched in March 2007. Based on its original model,
this improved version has a bunch of remarkable new functions. The product is compliant with
DOCSIS1.1 standard. It offers not only gateway services to HFC network and external network, but also
broadband data and video transmission services that based on IP. It is especially suitable for the Cable
TV operators and Multi-service operators (MSO) to offer stable and reliable broadband services for their
Bidirectional HFC network users.
JH-HE 2086 CMTS adopts 1U structure. It has integrated digital upconverter so that users can set
proper downstream frequencies according to the network situation discretionarily. The equipment has
four upstream channels and one downstream channel.
JH-HE 2086 CMTS use QNX OS a distributed, embedded, real-time operation system similar to UNIX
(in accord with POSIX) - as its operation system.
2
Features
Compatible with both EURO DOCSIS1.1 & US DOCSIS1.1it also compatible with DOCSIS2.0
cable modem.
Support QoS.
Available in both 1X1(1DS,1US) ,1 X 2(1DS,2US),&1X4(1DS,4US).
Available for VOIP service.
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Customized design for cost sensitive operators
Support up stream frequency automatic jumping to avoid disturbing frequency point.
According to detecting upstream data error-code status, CMTS could estimate whether the current
Working frequency points were disturbed or not .Once disturbed, the CMTS will jump frequency to spare
frequency point to avoid frequency disturbing. You can set five frequency points each time.
Support upstream modulate mode and baud rate automatic change to insure perfect balance of
Upstream transmit efficiency and the ability to resist disturbance.
Support DHCP relay agent and PPPoE dial-up.
Bandwidth limit of both upstream and downstream.
Bandwidth limit of upstream and downstream to single CM could avoid impropriating from BT
downloading. Different kind of service as requested of various users offer convenient management to
CATV operators.
Both CM and CPE could choose layer-2,layer-3 even mixed layer-2 & layer-3 working mode.
It can be configured and operated by CLICOMSNMP.
Log into CMTS by Telnet, configure and operate CMTS by command lines ,it is convenient for network
administrator to manage and maintain both network and users as well as remote log in to upgrade all
software.
Optional internal high integrated DHCP/TFTP services mode.
While this CMTS is used for household and hotel, such kind of small network scope, it can realize
most simple way broadband access by its highly integrated internal DHCP/TFTP server to reduce
installation and operating cost.
Integrated RF digital up-converter. It is easy to set RF frequency and power level by the VFD and
function key on the panel.
Adopt high performance CPU to improve data processing capability.
Web management interface for convenient and cost effective operating.
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Minimized 1U platform designcost effectiveeasy to be piled and expanded.
3
Index
3.1 Downstream index:
Modulation:64QAM / 256QAM
Frequency range:88-860 MHz
Output power level:105-118 dBVupconverter output power
Symbol rate: 6.952 Msymps
Data rate: 41 Mbps64QAM- 55 Mbps (256QAM)
FEC: Reed-Solomon
Channel bandwidth: 8 MHz
Output impedance: 75
3.2 Upstream index:
Modulation mode QPSK / 16QAM
Frequency range 565 MHz
Symbol rate: 320 640 1280 2560 5120 Kbps(QPSK)
640 1280 2560 5120 10240 Kbps(16QAM)
upstream bandwidth 200 400 800 1600 3200 KHz
Input power level 160 ksymps 44~74dBuV
320 ksymps 47~77 dBuV
640 ksymps 50~80 dBuV
1280 ksymps 50~83 dBuV
2560 ksymps 56~86 dBuV
FECReed-Solomon
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Input impedance 75
Transfer media CATV HFC network.
Protocols compliant with DOCSIS, Euro-DOCSIS, TCP/IP, ARP, ICMP, SNMP, etc.
3.3 Physical index
RF Port 5 RF connectors(metric) 1 downstream, 4 upstreams ( F type).
LAN Port 2 duplex 100/10BaseT RJ45 connectors
Status display: 8 LED separately display state of upstream channels, downstream channel, power
supply, network interface.
Outside portComKeyboardVGA
Shape dimension: width: 43cm hight:4.4cm depth: 36cm
Net weight6Kg
Power consumption60W
Operation environment0~40
Relative humidity
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2The rear panel
Chart 1-2
3Front panel indicator light
There are eight indicator lights on the front panel to show the power supply, channel and the Ethernet
port, Show as following chart (chart 1-3).
Chart 1-3
The explanation of each indicator light as following.
LED light Function Status Description
Power Power on Lasting on Power is up
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DS Downstream indicator on/off The downstream channel is up/off
US1 (Upstream 1) working indicator on/off The upstream channel is up/off
US2 (Upstream 2) working indicator on/off The upstream channel is up/off
US3 (Upstream 3) working indicator on/off The upstream channel is up/off
US4 (Upstream 4) working indicator on/off The upstream channel is up/off
MGT network connection
indicator
on/off Ethernet management data is
transferring
WAN working indicator Flashing whether network connection in
gear (bright shows connection,
transfer mode is 100M)
Prompt:in the process of operating, pull out the coaxial-cable on the back panel is strictly prohibited.
Getting started
Note Pay especial attention to differentiate the input and output marks when coaxial cable
connect with the splitter
It is important to maintain reliable earthing (also known as grounding) of
rack-mounted equipment. Make sure that the rack you use for the system is properly
earthed at all times.
In the schematic drawing, the equipments which not in packing list wont provided by
Chongqing Jinghong High-tech Co.,Ltd.
1Cable connection
1.1The following picture shows how JH-HE CMTS connect with correlation equipment.chart 1-4
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Chart 1-4
Note: When CMTS connects with the switcher in 100Base_T mode, please use the default WAN
1.2The following picture shows how JH-HE CMTS connects with correlation equipments at the branch
front (chart 1-5).
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Chart 1-5
1.3The following chart shows cable modem connect with CPE and other equipment on user end(chart
1-6)..
Chart 1-6
2
Request of cor relation servers
2.1Ensure DHCP service runs normally which has been correctly configured on the server
2.2Ensure to tie up the same subnet CMTS IP address on the DHCP server correctly
2.3Ensure the TFTP service which disposes on the DHCP server to run normally.
Note Please consult TCP/IP protocol for the DHCP and TFTP protocol.
the request of configuring DHCP service on server and ties up CMTS the same subnet IP
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address, please consult the appendix one.
How to install and configure TFTP server please consult the appendix two.
3
Turn on and turn off
3.1 steps of turning on the equipment
Turn on the CMTS power source.
About 30 seconds after CMTS turned on, system prepares to be ready.
Connect a CM to test whether the CMTS works normally. If the CM can smoothly connected, it
indicated that the CMTS runs normally.
3.2 steps of turning off the equipment
normally turn off: you should input "shutdown", 5-50 seconds later, shut off the power
on special conditions, if really necessary to turnoff CMTS, you can shutdown power directly
Equipment parameter configuration
1
Factory setting parameters
downstream index configure
parameters
upstream index Configure
parameters
US 1 30 MHz
US 2 35MHz
US 3 40MHz
EURO DOCSIS1.1
Upstream
frequency
US 4 50MHz
modulation 64QAM modulation QPSK
Upconverter frequencyoutput 123MHz upstream bandwidth 3.2MHz
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Upconverter output
power level 105 dBV input power level 60 dBV
symbol rate 6.952Msymps data rate 2560Kbps
other index
WAN 172.168.0.200 subnet mask 255.255.255.0
MGT 192.168.0.200 subnet mask 255.255.255.0
2
Startup s teps of the equipment
Turn on CMTS power supply
The system takes initialization automatically
The startup steps will be finished after 30 seconds
Note: After all startup procedures finished, the screen will display relative RF frequency and
electrical level. If you have connected display(by VGA), it will display CMTS at the bottom line
You may also test whether the startup steps are finished by PING command at DOS status on
server end. E.g. ping 172.168.0.200
3Configure the inside up converter
3.1Features
Intermediate frequency input by upconverter sustaining:44MHz and 36.125MHz
Output frequency 85MHz-860MHz, adjustable step is 0.25MHz.
Output power 105-118dBV, adjustable step is 1MHz.
3.2Active Status
After turning on the CMTS, the LCD screen will display the product model and the edition
information. Before CMTS entering normal work condition, there is no output from upconverter.
The LCD screen shows "WAITING... ... ".
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When the CMTS startup finished, the upconverter enters t normal work condition. This time the
LCD screen will be able to display output frequency and power. This is status 1. Show as following
chart (chart 1-7):
Chart 1-7
Note: LCD screen will stay on this estate when converter work normally. If No Input displays on the
LCD, it may be caused by the power voltage .Please check-out, and restart the equipment.
3.3Operation method
..key 1
key 3 .key 2
key 4
Chart 1-8
As showing above (chart 1-8), key 2 is the button for menu selection/setting. When LCD screen on
estate 1, press button 2 will enter setup menu. There are three setup menus, press button2 will switch
among the three setup menu and estate 1 to 4.
Menu 1: setup output frequency.
The menu will setup the output frequency of the upconverter. After entering the menu, you can use key 3
to adjust the cursor position, use key 1 and key 4 to increase and reduce the number where cursor on,
and, use key 2 to confirm and return to estate 1. Show as following chart(chart 1-9).
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Enter.
Input password (attention differentiates capital and small letter), then press Enter.
The screen appears "$" prompt symbol (if the user name is root ,the prompt symbol is #) to
indicate entering the command mode.
Note: User name and password for system administration are preserved in system resources CD
"CMTS option parameter.ini" document. Please take care of them properly.
4.2physical parameter configuration command
4.2.1Upstream channel configuration parameter display
sentencedisplay us
Note display upstream channel IDfrequencyon/off status and upstream modulation mode.
4.2.2upstream frequency, modulation mode, channel switch setup
sentencesetus
NoteExecute this command; there will be a menu mode user input access as follows:
Cchoice channel
Q) quit
Optional input: c / C Enterinput channel ID1-4enter channel physical parameter then setup second
menu as follows:
M) Setup modulation mode
R) Setup baud rate
F) Setup channel frequency
S) Setup channel switch
P) Display current setting status
Q) Quit & save
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You can enter relative parameter setting by menu option
Method parameter modulation symbol rate
qpsk_2560k QPSK 2560Ksym/sec
qpsk_1280k QPSK 1280Ksym/sec
qpsk_640k QPSK 640Ksym/sec
qpsk_320k QPSK 320Ksym/sec
qpsk_160k QPSK 160Ksym/sec
q16d_2560k 16QAM 2560Ksym/sec
q16d_1280k 16QAM 1280Ksym/sec
q16d_640k 16QAM 640Ksym/sec
q16d_320k 16QAM 320Ksym/sec
q16d_160k 16QAM 160Ksym/sec
4.2.3Downstream channel configuration parameter display
sentencedisplay ds
Note display downstream channel frequencymodulation mode and baud rate
4.2.4Setup downstream channel DOCSIS standard, modulation mode and baud rate
sentencesetds
NoteExecute this command; there will be a menu mode user input access as follows:
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frequency intervals should be 3.2 Hz
After finishing all configuration, you must restart CMTS and then all those parameters you
setup could be activated.
4.6Operation command list
Item Command Function description
1 showvi Display programs version number
2 cmtsdown CMTS power off
3 cmtsreboot CMTS restart
4 display Display CMTS sytem parameter
5 setnetwork CMTSCM gatewayCPE gatewaynext leap gateway and IP
setup of DHCP server6 setds Downstream parameter setup
7 setus upstream parameter setup
8 cmevc CM exchange visit control setup
9 pppoe Switch on/off PPPOE protocol support
Note Please pay special attention to letter capitalizations while inputting commands.
Commonly processing failure
1
CM unable to online
Cable Modem registered or not.
Whether TFTPsimple file transfer protocolservice running on DHCP server or not and
configured correctly.
The matter of Cable Modem configuration files.
Observe spectra through frequency spectrograph565MHzobserve if there is constant
noise jamming in upstream channel.
Detect whether there is downstream signal on cable through field-intensity meter or frequency
spectrograph, and whether the downstream signal intensity is in the CM input level range.
Whether the entry level of CMTS upstream channel is suitable.
Visit the web of CM to view status, and lookup the malfunction.
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Change a Cable Modem.
Note
the correlation technique indices, please refer to the ninth item in the common use indices.
2
CM frequently missing.
Observe spectra through frequency spectrograph565MHzobserve if there is
gusty noise disturbing upstream channel.
Circuit reason made the downstream channel Signal-to Noise RateSNRtoo low.
Whether there is interference source around Cable Modem, such as radio emission
antenna and so on.
Change a Cable Modem.
Common use indices
Transmission level of Cable Modem68118dBV
Input level of reversing amplifier>80 dBV
Input level of feedback optical transmitter7595 dBV
The input level of CMTS4486 dBVit is related to upstream transmission rateSuggest to
configure it with 60dBV.
The input level of Cable Modem4575 dBVmaximum not exceeding 90dBV;
The SNR of HFC network upstream is required not below 20 dB. DOCSIS protocol requires the
indices not below 25dBthere is in favor of allowance
Note the effective way to detect whether bidirectional HFC network fits for CMTS operation is: user
transmits a signal that frequency range is 5-42or 65MHz 100 dBVyoud better use a signal produce
instrument. If the incoming level of CMTS reaches 60 dBV it can satisfy the equipment operating
requirement. The power level of every upstream signal that entering upstream mixer should be the
same.
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DHCP relay agency configuration
This part mainly introduces the conception of DHCP relay agency and its mode. It also presented how to
configure and test DHCP server
. DHCP relay agency
The relay agent is a procedure that transfers DHCP / BOOTP info between client PC and server in
different subnet. According to RFC, a standard documentation describes protocol design and relative
operation, DHCP/BOOTP relay agent is a part of DHCP and BOOTP standard and function.
DHCP relay agent transfer broadcasting mode DHCP/BOOTP info from one of its connected physical
port (e.g. both upstream and downstream channels ) to other physical ports even other long-distance
subnet.
Jinghong CMTS DHCP relay agent function can transfer DHCP requests from network of CM, CPE and
DHCP server then divided CM and CPE into different network section.
Setup CMTS network parameter and realize DHCP relay agent
In those network of CM and CPE (HFC plant), CMTS, as gateway, needs to configure gateway add. Of
CPE and CM (please check network management software user manual for more details). The gateway
adds Should be at the same network section as CPE and CM that worked under DHCP field but can not
conflict with each other.
In order to enable the DHCP requests could be sent to correct DHCP server, you should setup DHCP
server IP add on CMTS. (Please check NMS user manual 6.3 for more details)
Suppose that an HFC plant IP programming is as follows: (all later parameters in this article should take
this supposed parameter as the standard)
1CM IP add is172.16.4.0 / 22
2CPE IP add is172.16.8.0 / 22
3DHCP server and CMTS Ethernet network is 172.168.0.0 / 24more details are as follows
DHCP server IP add172.168.0.18 mask code255.255.255.0
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CMTS Ethernet port IP add172.168.0.200 mask code255.255.255.0
4Take CMTS RF access as gateway of CM and CPE, as follows
CM gateway IP add172.16.4.1 mask code255.255.252.0the gateway of network 172.16.4.0
/ 22
CPE gateway IP add172.16.8.1 mask code255.255.252.0the gateway of network 172.16.8.0 /
22
Configure DHCP server
Configuration of CMTS is just one of the part to realize DHCP relay agent , on the other side, you have to
configure the DHCP server, the procedure is as follows:
Confirm TFTP Server root default route, click ok
1
DHCP server ins tallation
The steps are of configuring and installation of DHCP.
Configure DHCP server on windows2003, according to the following steps:
1.1On the control panel, double click Add or remove programs.
1.2In the dialog box Add or remove programs, click Add/remove windows component .
1.3In the page windows components Wizard, below subassembly, click network service, then click
details.
1.4in the dialog box network service, in the network service subassembly, select Dynamic Host
Configuration ProtocolDHCPcheck box, then click OK button.
2Configure the scope option
After configuring DHCP server, we will set up scope. You can setup the scope follow the steps below.
2.1open DHCP from Administrative tools.
2.2In the DHCP manager, click add server option in the operation menu. It will pop a dialog box
named as add server, in the this server blank , input DHCP server IP address. Then click
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chart 2-2
Chart 2-3
2.4The guide required us to define IP address range. Refer to the assumption in preceding context, we
can set address segment from 172.168.0.10----172.168.0.230 and subnet mask is 255.255.252.0. Then
click Next (chart 2-4).
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Chart 2-4
2.5 The guide will prompt you to add exclusions. Exclusions are addresses or a range of addresses that
are not distributed by the server. If there is no exclusion, click next to continue.chart 2-5.
Chart 2-5
2.6The guide will prompt you input lease duration, default with 8 days. Select default or input lease
duration you state.chart 2-6
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Chart 2-6
2.7The guide will prompt you to configure DHCP options. You may select no or yes. Here we select
No. (chart 2-7)
Chart 2-7
2.8Click Finish, the scope setup finished.
2.9After setup the scope, you need to configure scope option,
2.9.1 Scope option
Router (this address is 172.168.0.1)
Start-up server host name (TFTP server IP address). If TFTP server runs on DHCP server, the IP
addresses of TFTP and DHCP servers are the same.
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chart 2-10
chart 2-11
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Chart 2-12
2.11After all the scopes have been configured, click apply, and finish. The options configured will
appear in the DHCP manager scope option listchart 2-13
Chart 2-13
2.12For the scope setup for DHCP is in inactive status, you should activate it so as to work normally.
Right button click DHCP scope, then click activation in the pop-up menu.chart 2-14.
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Chart 2-14
2.13When finish configuration, there will appear scope list. Show as following chart (chart 2-15).
Chart 2-15
2.1.4 The method of testing whether the DHCP server configured successfully, connect a PC to DHCP
server to see whether it can acquire right IP address.
Deploy static router on DHCP server
If CM or CPE works at layer-3 router mode, the CMCPE & DHCP server will work at different network,
therefore, the DHCP server will send info to CM/CPE, It must make sure that gateway sent to CM/CPE
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points to CMTS WAN access. See as following:
1CM IP add is172.16.4.0 / 22
2CPE IP add is172.16.8.0 / 22
3DHCP server and CMTS Ethernet network is 172.168.0.0 / 24more details are as follows
DHCP server IP add172.168.0.18 mask code255.255.255.0
CMTS Ethernet port IP add172.168.0.200 mask code255.255.255.0
4Take CMTS RF access as gateway of CM and CPE, as follows
CM gateway IP add172.16.4.1 mask code255.255.252.0the gateway of network 172.16.4.0 / 22
CPE gateway IP add172.16.8.1 mask code255.255.252.0the gateway of network 172.16.8.0 / 22
Configuration of static router of DHCP server is as following:
Purpose network172.16.4.0 mask code255.255.252.0 gateway 172.168.0.200(cmts WAN access)
Purpose network172.16.8.0 mask code255.255.252.0 gateway 172.168.0.200(cmts WAN access)
Note
The external network router related to CMTS must be setup to CPE network static router then the
CPE could visit that external network.
VDHCP relay agent funct ion test
Establish a simple network status, connect one CM at least. Pay attention to that whether the CM could
got IP add of CM working field after distance measurement and whether it can download configuration
files successfully after got the IP add.
Once the CM got IP add and download configuration files and then register successfully, connect at least
one PC to CM, setup it into automatically got IP add mode. Detect whether the PC could got IP add in
the CPE working field.
All mentioned above successfully tested, it indicates that the DHCP relay agent works at a normal
status.
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3-1
2
Configuration file create steps
2.1Clickinsert here..there is edit interfacesee3-23-3
3-2
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3-3
See 3-3In the type window, You can make choice about downstream frequency point, upstream
channel, network visit control and COS parameters, and so on.
2.2Choose Network Access in the picture above (this is a must-do option, the default result is pitch on,
while the value is 1, it indicates that it allows terminal visiting network under CM), input 1 in the value
space.
2.3Setup max number of PC under CM.Clickinsert here..see 3-3in typecolumnsMaximum number
of CPEs,input quantity of PC in the valuecolumnsee3-4
3-4
2.4Setup downstream & upstream parameter which including speed rate and burst out parameters.
Firstly, choose Class of server Encodings, then choose Class IDMax. Upstream Rate
Max.downstream Rate, setup their max downstream & upstream speed rate, input speed rate value in
value (unit: bps/s, while 0 indicates there is no speed limitation), see edit interface unfolded as
following:3-53-63-7
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3-5
3-6
3-7
2.5Bind MAC add of the PC under CM. Click insert here..,choose CPE Ethernet MAC Addressin the
type column of the unfolded edit interface, input MAC add of CPE in the value column.see3-8
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3-8
NotePlease separate MAC adds by drop, if you want to bind several CPE, repeat those steps of
2.5.
2.6CM configuration files creation finished. See3-9
3-9
NoteThe quantity of bind MAC add should not be more than the quantity of PC under CM
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3
Save configuration files
After finishing all configuration files, click Save As ...in the file column, save the config. File as another
file name. Our general operation is that name that file name as the MAC add of CM , e.g.the MAC add
is 00:02:5e:00:00:78, the config. Files name of the CM should be 00025e000078.cfg
4After saving the configurat ion f iles, put it in the di rectory that TFTP server appointed.
The advanced options conf iguration on DHCP server
Step 1: the reservation item in scope in DHCP, open new reservation dialog box, as the following chart
showschart 3-10:
Chart 3-10
Step 2: Input CM MAC address in MAC address blank.
Step 3: Choose DHCP only in the sustaining type.
Step 4: Click add.
Step 5: Click the IP address in reservation list. Show as the following chartchart 3-11:
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Chart 3-11
Step 6 :Right button click on this IP address. Show as the following chartchart 3-12:
Chart 3-12
Step 7:Click configuration option to open the reservation option dialog box. And then select 067 Boot
file Name item to input the CM custom-built configuration files name in the string value. For example
00025e000078.cfg. Show as the following chart(chart 3-13):
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Chart 3-13
Step 8:After configuration finished, there will be configuration file name provided for the CM in the
configuration option list, Show as the following chart. (chart 3-14):
Chart 3-14
Summary
In a word, if you want to control the PC quantity, and to tie up PC MAC address, you must customize a
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Chart 4-2
Step 3: SelectInternet ProtocolTCP/IPclickproperties to open the page as followingchart 4-3.
Input the IP address that in the same subnet with CMTS.
Chart 4-3
Step 4: Click advanced button to open the window as following chartchart 4-4.
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Chart 4-4
Step 5: In the advanced TCP/IP dialog box, click add button to open the window as following chart
chart 4-5.
Chart 4-5
Step 6:Input 192.168.0.82 in the IP address blank, subnet mask255.255.255.0. Click add, then
returnchart 4-6.
Chart 4-6
Prompt:The additive IP address(192.168.0.82) is the IP address of network management port subnet.
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Notice: The configuration above is suitable for the situation that CMTS and severs are in the same
subnet.
Step 7:Click OK, finish the configuration.
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Appendix 2 Fix and configure TFTP server
Step 1:Insert system resources CD provided by Jinghong corporation, find \CD\Assistant
Software\3com tftp server file.
Step 2:Open this file, and double click setup icon to preparing the install shield wizardchart 5-1.
Chart 5-1
Step 3: In the installation interface, click next button. (chart 5-2).
Chart 5-2
Step 4:Click Next button. Or click Browse to select installation path. Then click Next button.chart
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5-3
Chart 5-3
Step 5: Click Next button to affirm the default program name, or input name you want to use, then click
Next buttonchart 5-4.
Chart 5-4
Step 6:Click Finish button to finish the TFTP server installationchart 5-5.
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Chart 5-5
Step 7: Run TFTP software. Show as following chartchart 5-6: Click "View"and choose "Options"
5-6
Chart 5-6
Step 8: Confirm TFTP Server root default route, click ok
Step 9: Copy JH.CFG file to appointed folder of TFTP Server rootdefault route.