We are currently running some of our nodes with 4 upstreams. We typically use 1 3.2mhz and 3 6.4mhz upstreams bonded. I noticed that the CMTS throws a warning for the upstreams that are 6.4 vs 3.2 with regards to the power levels.
If I set all of the upstreams to the same power level, the CMTS will complain with a message like the following:
Config Warning - Config of 5/0 (130 tdB) does not conform to maintaining equal power/hertz with 5/2 (100 tdB). Some performance degradation may occur on 5/0.
What is odd is that all 4 of them are set to 100 (10.0db), none are set to 130 (13.0)
Is that normal?
Here is the relevant portion of the config
cable upstream physical-delay automatic
cable upstream 0 frequency 19400000
cable upstream 0 power-level 100
cable upstream 0/0 channel-type atdma
cable upstream 0/0 pre-equalization
cable upstream 0/0 modulation-profile 203
cable upstream 1 channel-width 6400000
cable upstream 1 frequency 24200000
cable upstream 1 power-level 100
cable upstream 1/0 channel-type atdma
cable upstream 1/0 pre-equalization
cable upstream 1/0 modulation-profile 203
cable upstream 2 channel-width 6400000
cable upstream 2 frequency 30600000
cable upstream 2 power-level 100
cable upstream 2/0 channel-type atdma
cable upstream 2/0 pre-equalization
cable upstream 2/0 modulation-profile 203
cable upstream 3 channel-width 6400000
cable upstream 3 frequency 37000000
cable upstream 3 power-level 100
cable upstream 3/0 channel-type atdma
cable upstream 3/0 pre-equalization
cable upstream 3/0 modulation-profile 203