Having this issue on a Cisco CMTS(10K -with MC520H) running 12.3(23)BC2 - any ideas seem to only impact a particular upstream
cmts1a.testlab# sho cable modem summ total
Interface Cable Modem Description
Total Reg Oper Unreg Offline Wideband initRC initD initIO initO
C7/1/0/U1 272 0 0 272 147 0 8 1 0 2
C7/1/1/U0 60 59 59 1 1 0 0 0 0 0
C7/1/1/U1 41 36 36 5 3 0 0 2 0 0
cable-router#sh cable modem cable 5/1/1 upstream 1 summary
Interface Cable Modem Description
Total Reg Oper Unreg Offline Wideband initRC initD initIO initO
C5/1/1/U1 119 100 100 19 19 0 0 0 0 0 Rzemieslnicza
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Rafal@Sloniewski.pl;ELIO-RIPE;
Cisco&Docsis Admin; LIR pl.tkk
what is this repy ?
Sorry.. i wrong understand your question..
Could You give us
sh controllers cable 7/1/0 upstream 1 ?
If I'm reading that right, it says C7/1/0/U1 has 272 modems, 272 unregged and 147 offline? The math seems strange on that -- I don't run Ciscos, but on my CMTS the total is usually the sum of the offlines, onlines & modem in various boot stages. It's showing a few modems ranging there, so I'm guessing there's probably an issue with the upstream somewhere. Check the SNR reported by the CMTS?
In Cisco world that means there are 272 total modems none of which are registered with the cmts and 147 of which have not started, or have restarted the ranging process. Likely this sh cable modem command was run after his problem had been occurring for a while which caused most of his modems to try and find an additional carrier appearing offline to the cmts. I would venture a guess that he likely has mostly motorola modems too, as that is exactly what happens to our cisco cmts when we have a prob.
Since it is only happening on one port It sounds like plant issues specifically upstream plant issues.
Severe common path or ingress where upstream carrier is would cause this problem
init(dr) means it has started dhcp and has successfully DHCPDISCOVERed recieved a DHCPOFFER and the CMTS is expecting the DHCPREQUEST from the modem meaning it has completed a few steps of the provisioning process.
From the output of your show cable modem you have some modems in init(o) which is further along the chain in init codes which points to an upstream problem, like ingress or common path, also check where your upstream frequency is set, and make sure something else is not using that chunk of bandwidth.
If the issue is not showing with a particular stream then what can be wrong with... I checked the Upstream and couldnt find any chocking. Some modems will come online after staying in init(dr) status for a long and some will go offline. I think this issue started after upgradting the IOS in my CMTS. Current version is Cisco IOS Software, 10000 Software (UBR10K2-K9P6U2-M), Version 12.2(33)SCB4, RELEASE SOFTWARE (fc1)