As far as I have found thus far it doesn't seem to be possible to get utilization data from bonded (group) channels and/or wideband channels in DOCSIS 3.x.
Getting Channel Utilization data is only possible on mono channels, i.e. traditionally DOCSIS 2.0.
Please share your thoughts. Thanks much in advance!
I've never used channel utilization for monitoring so far.
But I monitor every DS channel for its traffic by snmp. It doesn't matter if primary or slave channels.
By the way it's very interesting to see the overhead on empty primary channels (with no cm).
Thanks.
I use SNMP Walk to get the utilization data of single channels; however this doesn't work for bonded channels.
Use MRTG graph to check bonding group utilization data..
On a Cisco CMTS you can SNMP poll / graph these interfaces :
* DS Cable : total non-bonded traffic for the mac-domain
* DS Integrated-cable : non-bonded traffic from this linecard interface
* DS Modular-cable : non-bonded traffic from this SPA/EdgeQAM interface
* DS Wideband-cable : bonded traffic from this interface
* With a bit of stuffing around, you can get individual DS channel utilisation (via MPEG counters)
* Cable X upstream Y : individual US channel utilisation
* Not sure if you can graph NB vs bonded US channel traffic? Probably can, but I have never tried.
Thanks.
I get the non-bonded utilization data using SNMP Walk for single channels, which is what I want, both for DS and US. On an Arris btw, but that shouldn't be making a big difference in using SNMP to get channel utilization data. A Wideband or bonded group channel however will not get me the utilization data on these channels using the same SNMP Walk.