03-04-2016 07:26 AM - edited 03-01-2019 02:59 PM
Hi,
In bonding situation 8x4 or 4x4, let say I have a poor level upstream on Upstream X ( 6/1/4 Ux)
or defect cable or anything that could affect a upstream port
Is there a way to tell the ubr to bond the CM on the upstream who are ok instead of doing 8x1 - 4x1
example, can the CM do 8x3 or 4x3 without modifying manually:
cable upstream bonding-group
cable fiber node
etc...
thanks
Solved! Go to Solution.
03-04-2016 11:04 PM
Hi,
In partial service, the modem and CMTS should use a reduced TCS to provide the service.
You can check this article to have more ideas:
http://volpefirm.com/docsis-3-0-partial-service/
Also, you can check the DOCSIS specification where it is stated that, when an US is unusable, CM must not use any data opportunities provided for that channel (section 8.4 from http://cablelabs.org/wp-content/uploads/specdocs/CM-SP-MULPIv3.0-I29-151210.pdf)
Regards
03-04-2016 08:34 AM
Hi Pascal,
Cisco CMTS allows modems to remain online in partial mode when US impairments are present without having to do any changes in the configuration.
More on this can be found at:
www.cisco.com/c/en/us/td/docs/cable/cmts/config_guide/b_cmts_ds_us_features/b_cmts_ds_us_features_chapter_010010.html
Regards.
03-04-2016 09:02 AM
Hi,
If I have problem on upstream X, let say too much noise or poor level and the Cable modems go in partial mode does that mean the CMTS will prevent CM using that upstream and not affecting the services. ?
Thanks.
03-04-2016 11:04 PM
Hi,
In partial service, the modem and CMTS should use a reduced TCS to provide the service.
You can check this article to have more ideas:
http://volpefirm.com/docsis-3-0-partial-service/
Also, you can check the DOCSIS specification where it is stated that, when an US is unusable, CM must not use any data opportunities provided for that channel (section 8.4 from http://cablelabs.org/wp-content/uploads/specdocs/CM-SP-MULPIv3.0-I29-151210.pdf)
Regards
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