Docsis chat

DOCSIS 2.0 BPI/BPI+ operation :

Static multicast => SAID is assigned in Auth-Reply

Dynamic Mcast (IGMP join) => SAID is assigned using “MAP request” and “Map Reply” messages

DOCSIS 3.0 BPI/BPI+ operation:

Static SAID => SAID is assigned in REG-RSP

Dynamic multicast => SAID is assigned using DBC-REQ

Kindly correct me if I am wrong. I have arrived at the above statements by going through the D3.0 spec

Could you please let me know why DSA, DSC and DSD messages are used?
I am getting confused ... please help ...

Hi,
I have a Motorola BSR 64K. I am going through the the CLI documentation. i am not able to fugure out the way to choose between BPI 1.0 mode and BPI+ mode for a CM.

I just get the option to enable security for the CM in the CM configuration file when I use SBConfigedit.
Do I have to configure any option in the CM configuration file to choose between BPI 1.0 and BPI+ mode?

Thanks in advance ..

Hi,
Is there any difference in the TEK refresh mechanism involved in BPI and BPI+ modes?

Thanks in advance

Please, can someone help me to understand why I am able to receive call behind my emta but i can't send a call with this one ?

Is there a way (command in cmts) to define the reason of this pb ?

Thank you for your help

Hi,

HI .. I am a newbie .. I request you to correct me in the following assumption

1. If a person gets to know the public rsa key of a cable modem(transmitted during Auth-request phase) , then he would be able to decrypt the auth info(which is encrypted with CM's rsa public key) trasmitted from CM to CMTS.
2. The auth info is used to obtain KEK and HMAC digests which are used later.
3. Again, TEK is encrypted by using KEK, which the hacker already knows.
4. The hacker would then be able to decrypt all the following messages.

Hi ..
could someone please brief me about the CM authentication process. the process involved in encrypting unicast traffic and multicast traffic. I went through the DOCSIS 2.0 spec. I am confused. could somebody please help me with this?

Thanks in advance ..

Hi,
I am a newbie. Could you tell me how to configure a BSR64K CMTS card as a Euro Docsis card or JDocsis card?
also, could you tell me how to load the root CA certificate onto the BSR64k?
Also, i request you to direct me to some useful documents related to my queries.

Thanks in advance ..

Hi,

Does anybody have any idea how to fix: failConfigFileError? I am using Debian Linux with TOD, TFTP and DHCP. I have the option 122 settings in there and the file is OK. I'm using gupimacmta. I just can't seem to get rid of that error. In Progress Telephony-TFTP stuck there. It's only 9 MTAs on our network. The macs are in the DHCP server and everything. This error comes and goes periodically and I'd love to know how I fix it without trying 4,000,000 things.

thanks

Hi All,

This is my first question on this board so please allow for mistakes:)

I am provisioning MTA's using Incognito Provisioning Server and in the MPS log I get an error when MTA sends provisioning request
The error: Ignoring Provisioning Enrollment Inform: incorrect length of MAC Address (0)
I believe that the MTA is NOT sending MAC Addr and therefore the ProvServer nacks the request. Does anyone out there know the SNMP MIB for sending MAC Addr?
Something like this: 1.3.6.1.4.1.7432.1.1.3.3.0