Why would modems have low TX power if the return path has correct levels?
One of our nodes is experiencing a lot of issues with upstream performance. Modems on that node report good downstream RX power +/- 3dB, but upstream TX power is around 35dB. Majority of modems are Cisco DPC3825 and CMTS is a BSR 64k. SNR for the upstream channels on that node is very poor - hovering around 25dB.
Certain cable modems will be unavailable from Cisco 10k CMTS. In principle, they are online, but they cannot be pinged, they do not respond to ip. However, if I try to "ping docsis MAC_ADDR", there will be an answer. After a modem restart, the tcp connection starts, but it only works for 10-20 minutes. :( Mostly affects modems, Arris type. If I replace cable modes with another one in the same place, it will work. :( What can cause such an error?
Regards!
Looking for best practices in modem config files. I have a couple of questions.
I want to play with the following ds/us rates and their max traffic burst. What percentage is max traffic burst typically over sustained and does anyone have an easy to understand explanation for it?
I'm looking for an OID to monitor the active cm count on the upstream bonded interfaces in the Ubr10k (12.2(33)SCF3). Could someone please let me know if this exists?.
At this moment I'm using cdxIfUpChannelCmActive from ciscoDocsExtMIB for non-bonded interfaces and it's working ok but it's not showing the bonded interfaces.
Hi guys
after the cable vendor replace the amplifier im having many pack-drops.
this is my docsis 3.0 modem stats:
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 129000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
We currently have two service flows defined in our EMTA config, I'm looking for info on how this works? It appears the voice has allocated 384k and prioritized via a packetclass on the upstream and downstream. Is this bandwidth carved out of the CMTS or only used when a voice call is setup/active? See below. I'd like to unify our CM configs and EMTA configs, if the bandwidth isn't carved upon registration, I'm hoping it is dynamically allocated only during a call. See my SF config below.
Searching for software image for CISCO/Technicolor Cable modem EPC3928AD.
Current I have: e3928A-E15-5-E122-c5210r55113-161104c
Does anyone have e3928A-E15-13.... or e3928A-E15-16 SWs ?
