[CNR][CLI] How to login CNR by using telnet to windows server

1. Open telnet Daemon on windows server.

a. Open the Services MMC snap-in. Click Start, and then type services.msc in the Start Search box.
b. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
c. Right-click Telnet, and then click Properties.
Ref [1]

2. telnet to windows server.
3. cd C:\Program Files\Network Registrar\Local\bin\
4. Input account and password

nrcmd -C 127.0.0.1 -N admin -P good
session:
    cluster = 127.0.0.1
    current-vpn = global
    default-format = user
    groups = superuser
    roles = superuser
    scope-edit-mode = staged
    user-name = admin
    visibility = 5
    zone-edit-mode = synchronous
nrcmd> 

Reference:
1. Enable the Telnet Server Service
2. nrcmd Program

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[CNR 7.2] How to use command line (CLI) to modify the CNR

set the parameter of client.

nrcmd> client 1,6,00:00:00:00:00:01  show
100 Ok
1,6,00:00:00:00:00:01:
    action =
    add-to-environment-dictionary =
    authenticate-until =
    client-class-name = CableModem
    default-vpn =
    domain-name =
    embedded-policy =
    host-name =
    over-limit-client-class-name =
    override-vpn =
    policy-name = #CM_100
    selection-criteria =
    unauthenticated-client-class-name =
    user-defined =



nrcmd> client 1,6,00:00:00:00:00:01 set policy-name=#CM_200
100 Ok
policy-name="#CM_200"

nrcmd> save
100 Ok

Clone the policy from other policy.
Clone CM_100 to CM_10000.

nrcmd> policy #CM_10000 create clone=#CM_100
100 Ok
#CM_10000:
    affinity-period =
    allow-client-a-record-update = [default=disabled]
    allow-dual-zone-dns-update = [default=disabled]
    allow-lease-time-override = [default=disabled]
    allow-non-temporary-addresses = [default=true]
    allow-rapid-commit = [default=false]
    allow-temporary-addresses = [default=true]
    default-prefix-length = [default=64]
    forward-dnsupdate =
    forward-zone-name =
    giaddr-as-server-id = [default=false]
    grace-period = 24h
    inhibit-all-renews = [default=false]
    inhibit-renews-at-reboot = [default=false]
    limitation-count =
    offer-timeout = 24h
    packet-file-name = 100/000000000001
    packet-server-name =
    packet-siaddr = 192.168.0.1
    permanent-leases = [default=disabled]
    preferred-lifetime = [default=1w]
    reconfigure = [default=allow]
    reconfigure-via-relay = [default=false]
    reverse-dnsupdate =
    server-lease-time =
    split-lease-times = [default=disabled]
    unavailable-timeout = [default=24h]
    use-client-id-for-reservations = [default=off]
    v4-bootp-reply-options =
    v4-reply-options =
    v6-reply-options =
    valid-lifetime = [default=2w]


nrcmd> save
100 Ok

Reference:
1. CLI Reference Guide for Cisco Network Registrar 7.2

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[docsis][Compiler tool] How to load the mibs file into docsis compiler tool

1. make install [docsis-0.9.6.tar.bz2]

2. Put the mib file into

/usr/share/snmp/mibs

3. docsis -e <configuration_file> key 111111222222

After this command will create the binary file (111111222222).

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[docsis-0.9.6][fedora 17] Install docsis-0.9.6 on the Fedora 17

1. yum install perl-ExtUtils-MakeMaker

2. Download net-snmp-5.7.2.tar.gz

cd net-snmp-5.7.2

./configure

make

make install

3. Download docsis-0.9.6.tar.bz2

cd docsis-0.9.6/

./configure

vim docsis-0.9.6/src/docsis_lex.c +1723

add
int yywrap(void){return 1;}

Reference :

• git fails to build in Fedora 14
• Flex lexical analyser
  
   

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[Docsis] Problems Related to DS Scanning and Locking

[Docsis] Problems Related to DS Scanning and Locking

1. CM is not connected to network

2. Weak carrier signal (too much noise)

3. Incorrect downstream center frequency.

4. Incorrect frequency specified in the DOCSIS configuration file

5. Incorrect frequency specified in the CM's runall command

6. Incorrect annex setting in the CM's production settings

7. CMTS did not configured a primary or legacy DS correctly



 

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[DOCSIS] P5 Command

[DOCSIS] P5 Command

cli d/De/dsstatus - DS channel status.

cli doc/Gen/tune 117



GWDB_GROUP:

cli g/c/GWDB_GROUP_ROUTER/?

cli g/c/GWDB_GROUP_DSLITE/?

cli g/c/GWDB_GROUP_DHCP/?



 

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[Docsis] Compile docsis-0.9.6.tar.bz2 on Ubuntu 10.04

1. Download docsis-0.9.6.tar.bz2
2. tar xvf docsis-0.9.6.tar.bz2
3. sudo apt-get install m4 bison flex libsnmp-dev
4. 
   A.
   “./configure” to configure the package for your system.
   B. Type “make” to compile the package.
   C. Type “make install” to install the programs and any data files and
   documentation.
   
   Must do following step, otherwise docsis command can't find relative number of OID.
   [docsis][Compiler tool] How to load the mibs file into docsis compiler tool
5. Excute the docsis binary file
   happy@happy-laptop:~/Downloads/docsis-0.9.6/src$ ./docsis

DOCSIS Configuration File creator, version 0.9.6
Copyright (c) 1999,2000,2001 Cornel Ciocirlan, ctrl@users.sourceforge.net
Copyright (c) 2002,2003,2004,2005 Evvolve Media SRL, docsis@evvolve.com

To encode a cable modem configuration file:
     ./docsis -e <modem_cfg_file> <key_file> <output_file>

To encode multiple cable modem configuration files:
     ./docsis -m <modem_cfg_file1> ...  <key_file> <new_extension>

To encode a MTA configuration file:
     ./docsis -p <mta_cfg_file> <output_file>

To encode multiple MTA configuration files:
     ./docsis -m -p <mta_file1> ...  <new_extension>

To decode a CM or MTA config file:
     ./docsis -d <binary_file>

Where:
<cfg_file>        = name of text (human readable) cable modem or MTA
              configuration file
<key_file>        = text file containing the authentication key
              (shared secret) to be used for the CMTS MIC
<output_file>         = name of output file where the binary data will
              be written to (if it does not exist it is created).
<binary_file>        = name of binary file to be decoded
<new_extension>        = new extension to be used when encoding multiple files
See examples/*.cfg for configuration file format.
Please send bugs or questions to docsis-users@lists.sourceforge.net

Reference :

• docsis-0.9.6.tar.bz2

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[Euro Cable] Certification Webpage

EuroDOCSIS and EuroPacketCable Certified Products

Reference :

• EuroDOCSIS and EuroPacketCable Certified Products
  
  

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[CMTS] How can I configure bundling on a Cisco CMTS?

 

Please change following running-configure.

If have any problem.

Please reboot the machine.

Default configure will copy to be running-configure.



service group  1

  qam 0/0/0

  qam 0/0/1

  qam 0/0/2

  qam 0/0/3

  qam 0/1/0

  qam 0/1/1

  qam 0/1/2

  qam 0/1/3 -->   if want cancel, change like  "no qam 0/1/3"

  upstream 1/0

  upstream 1/1

  upstream 1/2

  upstream 1/3





upstream map size 5



interface docsis-mac  1

  no shutdown

  no dhcp-authorization

  no early-authentication-encryption

  no multicast-dsid-forward

  no tftp-proxy

  ip bundle 1

  downstream 1 interface qam 0/0/0

  downstream 2 interface qam 0/0/1

  downstream 3 interface qam 0/0/2

  downstream 4 interface qam 0/0/3

  downstream 5 interface qam 0/1/0

  downstream 6 interface qam 0/1/1

  downstream 7 interface qam 0/1/2

  downstream 8 interface qam 0/1/3  --> if want cancel, change like  "no downstream 8 interface qam 0/1/3".

  upstream 1 interface upstream 1/0/0

  upstream 2 interface upstream 1/1/0

  upstream 3 interface upstream 1/2/0

  upstream 4 interface upstream 1/3/0

  mgmd ipv4 query-interval 120

  mgmd ipv4 max-query-response-time 10

  no mgmd ipv4 shutdown

Reference :

• CMTS Configuration FAQ


• following documents are standard reading for any broadband engineer / technician

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[DOCSIS] A list of the specifications in the DOCSIS 3.0 series is provided.

A list of the specifications in the DOCSIS 3.0 series is provided.

For further information, please refer to http://www.cablemodem.com.

DOCSIS 3.0 Series of Specifications

CM-SP-PHYv3.0 Physical Layer Specification

CM-SP-MULPIv3.0 Media Access Control (MAC) and Upper Layer Protocols Interface Specification

CM-SP-OSSIv3.0 Operations Support System Interface Specification

CM-SP-SECv3.0 Security Specification

CM-SP-CMCIv3.0 Cable Modem CPE Interface Specification

This specification is defining the interface for MAC and Upper Layer Protocols.

CM-SP-eDOCSIS eDOCSIS™ Specification

CM-SP-CMCI Cable Modem CPE Interface Specification

CM-SP-DRFI Downstream Radio Frequency Interface Specification

CM-SP-DTI DOCSIS Timing Interface Specification

CM-SP-DEPI Downstream External PHY Interface Specification

CM-SP-DSG DOCSIS Set-Top Gateway Interface Specification

CM-SP-ERMI Edge Resource Manager Interface Specification

CM-SP-M-OSSI M-CMTS Operations Support System Interface Specification

CM-SP-L2VPN Layer 2 Virtual Private Networks Specification

CM-SP-TEI TDM Emulation Interfaces Specification

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5.2.5 CM and CPE Provisioning and Management

Data-Over-Cable Service Interface Specifications DOCSIS 3.0 - MAC and Upper Layer Protocols Interface Specification

5.2.5 CM and CPE Provisioning and Management



5.2.5.1 Initialization, Provisioning and Management of CMs5



1) Topology resolution and physical layer initialization,

2) Authentication and encryption initialization

3) IP initialization

4) Registration (MAC layer initialization)





1)

A. CM acquires a single downstream and upstream channel and receives broadcast information from the CMTS.

B. Initialize the upstream physical layer by "ranging" on a selected upstream channel.

Provisional MAC layer initialization has been performed



2)

Authentication and encryption initialization



A. CM sending its X.509 digital certificate to the CMTS for validation.

B. CMTS will respond with a message to encrypt the upstream and downstream data transmissions

    i. This can be disable (if yes)

       After registration stage (step 4) will authentication and encryption initialization again.

Detail [DOCSIS SECv3.0].



3)

The CM acquires an IP address in the Cable Operator address space, as well

as the current time-of-day, and a binary configuration file.



DOCSIS 3.0 defines use of IP version 4 and IP version 6 and four provisioning modes:

A. IPv4 Only

the CM uses DHCPv4 to acquire an IPv4 address and operational related parameters.



B. IPv6 Only

The CM uses DHCPv6 to acquire an IPv6 address and operational parameters



C. Alternate

Alternate Provisioning Mode (APM)

Attempting IPv6 provisioning first.

Attempting IPv4 provisioning next.



D. Dual-stack

Dual-stack Provisioning Mode (DPM)

DHCPv6 and DHCPv4 almost simultaneously,



4)

Registration

Three-way handshake between the CM and the CMTS

a. CM pass configuration file to CMTS..

b. CMTS validates the contents to CM

CM acknowledges receipt of the CMTS’s response,

The MAC layer initialization is complete.



After the CM completes initialization

Manageable network element in the operator’s IP network. (CM supports SNMP)

Reference:

Data-Over-Cable Service Interface Specifications DOCSIS 3.0 - MAC and Upper Layer Protocols Interface Specification







 

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[Docsis] T3 and T4 Timeouts

[Docsis] T3 and T4 Timeouts

Role play :

School (CMTS)

bus (MAP)

Student's House (CM)

Ring (RNG-RSP)

policy (T4 timeout)



T3 timeout -

School send a bus to student house.

Student get on the bus.

Bus arrive school.

School will make a call to notify Student's father.

If Student's father don't receive the ring.

This was called T3 timeout.





T4 timeout -

When bus don't come back to school.

School will send another bus for student.

Student's father not receive ring for 15 times.

Student's father call policy.

This was called T4 timeout.



Reference :

• 
  Cable Modem Registration | A Second Look

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[Docsis] MAC Domain Descriptor (MDD)

[Docsis] MAC Domain Descriptor (MDD)



MDD

• 
  Primary Download Channel
  
  
  
  • 
    Channel ID
  
  
  
  


• 
  Lock on non-primary
  
  
  
  • 
    Get MDD where to lock
  
  
  
  


• 
  Loading Balance


• 
  additional information
  
  
  
  • 
    Available DownStream Channel
  
  
  • 
    Available UpStream Channel
  
  
  • 
    Available Upstream Frequency Range
  
  
  
  


• 
  Include in
  
  
  
  • 
    non-primary capable DOCSIS channel
  
  
  • 
    primary capable DOCSIS channel
  
  
  
  

Reference :

• 
  Top 10 DOCSIS 3.0 Terms You Need to Know

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[Docsis][MDD] MAC Domain Descriptor (MDD)

[Docsis][MDD] MAC Domain Descriptor (MDD)



MAC Domain Descriptor (MDD)



MDD messages are periodically transmitted on all Downstream Channel(s) of DOCSIS 3.0 CMTSs.



The MDD message contains

1.Downstream Channel ID of the Primary Downstream Channel.



The cable modem will read the MDD and know immediately where to tune

1. lock on to the Primary Downstream Channel.



The MDD can

load balancing cable modems in a DOCSIS 3.0 network.  



The MDD also contains additional information for the cable modem

1. available downstream channels

2. available upstream channels

3. upstream frequency range and more.



Reference :

• 
  Top 10 DOCSIS 3.0 Terms You Need to Know


• 
  Data Over Cable Service Interface Specifications DOCSIS® 3.0 Physical Layer Specification (PDF)
  
   

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[DOCSIS 3.0][SPEC] 6.2.14 Symbol Mapping

[DOCSIS 3.0][SPEC]  6.2.14 Symbol Mapping

6.2.14 Symbol Mapping (Map the Data Stream into Modulator Symbols) (Ref1 - page 48)

 x1 represents the LSB of each of the symbol maps

 x2, x3, x4, x5,x6 and x7 represents the MSB for QPSK, 8-QAM, 16-QAM, 32-QAM, 64-QAM, and 128-QAM respectively.

 

 MSB MUST be the first bit in the serial data into the symbol mapper.

 

 Reference :

• 
  Docsis 3.0 - Physical Layer Specification


• 
  IQ Modulation

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[DOCSIS] Online Resource

• Online document
• Cable Lab
• DOCSIS

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