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DOCSIS 1.1 modem software upgrade with Code Verification Certificate (CVC)

volodechka
Level 1
Level 1

Hello.

I'm trying to update firmware image on DOCSIS 1.1 modem (Motorola SB5100). According to docs I've made modem profile with following params:

03 (Net Access Control) = Yes

09 (Software Upgrade Filename) = SB5100-2.3.1.6-SCM01-NOSH-NNDMN.p7.bin

17 (Baseline Privacy Block)

S01 (Authorize Wait Timeout) = 10

S02 (Reauthorize Wait Timeout) = 10

S03 (Authorize Grace Timeout) = 600

S04 (Operational Wait Timeout) = 10

S05 (Rekey Wait Timeout) = 10

S06 (TEK Grace Time) = 600

S07 (Authorize Reject Wait Timeout) = 60

18 (Maximum Number of CPE) = 1

21 (TFTP Server IP) = 10.6.7.1

24 (Upstream Service Flow Block)

S01 (Flow Reference) = 2

S06 (QoS Parameter Set Type) = 7

S08 (Max Substained Traffic Rate) = 64000

S15 (Service Flow Scheduling Type) = 2

25 (Downstream Service Flow Block)

S01 (Flow Reference) = 1

S06 (QoS Parameter Set Type) = 7

S08 (Max Substained Traffic Rate) = 128000

29 (Privacy Enable) = Yes

33 (Co-signer CVC) = 30-27- [hex stuff skipped]

I've modem connected and online:

MAC Address : 000e.5cXX.XXXX

IP Address : 10.X.X.X

Prim Sid : 1

Interface : C3/0/U0

sysDescr : <<HW_REV: 3; VENDOR: Motorola Corporation; BOOTR: 2150; SW_REV: SB5100-2.3.1.3-SCM00-NOSH; MODEL: SB5100>>

Upstream Power : 53.00 dBmV (SNR = 31.42 dBmV)

Downstream Power : -4.-3 dBmV (SNR = 34.00 dBmV)

Timing Offset : 2569

Initial Timing Offset : 2569

Received Power : 0.00

MAC Version : DOC1.1

Provisioned Mode : DOC1.1

Enable DOCSIS2.0 Mode : Y

Capabilities : {Frag=Y, Concat=Y, PHS=Y, Priv=BPI+}

Sid/Said Limit : {Max Us Sids=4, Max Ds Saids=15}

Optional Filtering Support : {802.1P=N, 802.1Q=N}

Transmit Equalizer Support : {Taps/Symbol= 1, Num of Taps= 24}

...

I've DOCSIS-ROOT-CERT configured on CMTS. and Motorola CERT on bootflash:/

ubr# sh crypto ca trustpoints

Trustpoint DOCSIS-ROOT-CERT:

Subject Name:

CN = DOCSIS Cable Modem Root Certificate Authority

OU = Cable Modems

O = Data Over Cable Service Interface Specifications

C = US

Serial Number: 5853648728A44DC0335F0CDB33849C19

Certificate configured.

Trustpoint CN = Motorola Corporation Cable Modem Root Certificate Authority, OU = ASG, OU = DOCSIS, L = San Diego, ST = California, O = Motorola Corporation, C = US:

Subject Name:

CN = Motorola Corporation Cable Modem Root Certificate Authority

OU = ASG

OU = DOCSIS

L = San Diego

ST = California

O = Motorola Corporation

C = US

Serial Number: 437498F09A7DCBC1FA7AA101FE976E40

Warning: can not find root certificate with the subject name.

After all that modem shows that it can't upload new firmware because CVC validation failed:

4-Error 0x041D2C1C Configuration File CVC Validation Failure

I've tried to add Motorola certificate on CMTS in hex form (cable privacy add-certificate manufacturer) but it's too long (933 bytes binary) and I cant add it..

please help.

1 Reply 1

amritpatek
Level 6
Level 6

No hardware upgrade is required to support DOCSIS 1.1, only a software (Cisco IOS) upgrade. Check out the release notes for the upgrade procedure.

Cisco uBR7200 Series - Cisco IOS Release 12.2 BC

http://www.cisco.com/en/US/products/sw/iosswrel/ps5012/prod_release_note09186a00800873f1.html