In the SCM verbose command in the US power information it reads....below. How often is this refreshed "Peak Transmit level" or how current is this information? (weeks? days? Hours?)
Upstream Channel : US0
Ranging Status : sta
Upstream SNR (dB) : 34.77
Received Power (dBmV) : -2.50
Reported Transmit Power (dBmV) : 43.50 (Current power level)
Peak Transmit Power (dBmV) : 57.00 (sometimes reaches this level)
Phy Max Power (dBmV) : 57.00 (physical limit of modem)
Minimum Transmit Power (dBmV) : 21.00
Timing Offset (97.6 ns): 3420
Really? No one here knows the answer?
How often does this "**Peak Transmit Power" update?
Cisco CMTS
Upstream Channel : US0 US1 US2 US3
Ranging Status : sta sta sta sta
Upstream SNR (dB) : 33.61 34.77 36.12 33.97
Received Power (dBmV) : -2.00 -1.00 -1.00 -1.50
Reported Transmit Power (dBmV) : 39.50 41.00 41.00 41.00
**Peak Transmit Power (dBmV) ** : 51.00 51.00 51.00 51.00 ***************
Phy Max Power (dBmV) : 51.00 51.00 51.00 51.00
Minimum Transmit Power (dBmV) : 21.00 21.00 21.00 21.00
Timing Offset (97.6 ns): 4252 4251 4253 4253
Maybe you are misunderstanding what Peak Transit Power means?
Are you thinking it's a measurement of the highest transmit power this modem has ever reached? That is not correct.
I believe it is showing the max transmit power the modem is allowed to use, based on it's current upstream channel bonding configuration. The more channels bonded = the less transmit power allowed per channel
From memory 1 channel is 58, 2 channels is 55 and so on.
Maybe have a look here for a bit more info
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_uscb.h...