[c-nsp] CMTS Question

[Paul Stewart]

Thanks very much... I got a "whack" of offline replies on this one and
*really* appreciate everyone's replies......

We've taken this back to the outside plant folks and they have found some RF
fluxuation in one of the return amps so far....

All the best,

Paul
 

-----Original Message-----
From: Werley, Scott [mailto:SWerley at corp.ptd.net] 
Sent: Wednesday, May 30, 2007 9:23 AM
To: Paul Stewart; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] CMTS Question

Cable modems displaying a "* "or a "!---" in the output of a show cable
modem or show cable flap-list command. A "*" indicates a cable modem that is
rapidly varying its upstream power levels. This is indicative of a poor
connection to the cable plant, a faulty reverse path amplifier, or rapidly
changing cable plant attenuation due to temperature or other environmental
effects. A "!---" indicates a cable modem that has reached its maximum
upstream power level. This is indicative of too much attenuation between the
cable modem and the CMTS, or a poor connection between the cable modem and
the cable plant.
 
>From here:
http://www.cisco.com/warp/public/109/troubleshooting_slow_perf.shtml#noisean
derrors
 
I had it bookmarked from ages ago.
 
- Scott