Docsis chat

Can someone clarify about DHCP settings in cable modems, the IP addresses assigned to CM always shown within private IP address range (10.x.x.x), and they also need have public IP addresses to communicate with WAN network. When the modem DHCP settings are mentioned (in any context), does this refers to internal IP addresses or external IPs?

C in Vacuum is 299,791,819.008m/s

C * propagation constant in fiber is C*0.67 = 200,860,318.73536 m/s

C * propagation constant in coax is C*0.87 = 260,818,882.53696 m/s

One-Way Transit Delay Constant 0.80

Known:
Modem A has a timing offset of 3579
Modem A has a coaxial forward and fiber return, with a distance of 23174.6m in one direction
Forward is 256Q, Reverse is 64Q

Forward (Coax)
((23174.6m/.8)/.87)/CCoax)/10^-3s)=.127662

Reverse (Fiber)
((23174.6m/.8)/.67)/CFiber)/10^-3s)=.215255

Dear all,

we urgently need the latest Firmware for the Cisco EPC 3212. Right now we have:

e3200-ESIP-12-v302r125532-110616c_upc

If possible we would prefer the SIP-Version.

We found references to:

epc3212-ESIP-5-v302r12901-091216c
epc3212-E10-5-v302r12901-100121c-ZIG
e3200-ESIP-12-v302r125532-110616c_upc
e3200-ESIP-12-v302r125532-111109c_upc-TEST
e3200-E10-12-v302r125533-120225c-KDG
e3200-ESIP-16-v302r125562-130611c_upc
e3200-E10-12-c1000r5592-140129c-KDG

So I have a situation needing to know if its possible and how to accomplish it.

We have a TX32 (slot 3) with TxPlus and 2 RX48 cards (slot 0 and 1). This particular CMTS is at a mobile home community and serves 3 properties. The way the fiber nodes are setup is one transmitter with builtin splitter then each node has its own return path receiver. The issue is we have 16 fiber nodes. I would like to bring each node back to a single upstream port on the BSR, but I am not sure how to bind the upstream ports on both cards to the same cable interface (0/0).

Hi,

someone know how many
8x4 - 16x4 - 24x4 i can do with ubr10K
I just want to knows how many I can do, not how to config the ubr

spec:
8x SPA-UBR10-DS-HD -6G
PRE5
8x UBR-MC3GX60V
IOS 12.33 SCH5 or SCJ

max 8x4: 120 ?
max: 16x4 ?
max: 24x4 ?
IOS 12.33 SCH5 or SCJ
-----------------------------------
and

8x SPA-UBR10-DS-HD -3G
PRE5
8x UBR-MC3GX60V
IOS 12.33 SCH5 or SCJ

max 8x4: ?
max: 16x4 ?
max: 24x4 ?
and

Hola!

In coming weeks we will have from our key customer more than 50 sets uBR7246VXR in config like below:

- chassis
- NPE-G2
- 3x MC88V
- 2x PSU DC

Used, tested and 100% working.

Somebody is looking for cheap EuroDOCSIS 24DS+24US sets?

Lucas

Hello,
I'm experimenting with Docsis 3.1 on a Cisco cbr8 (downstream only at this time). I have a downstream setup and am awaiting a couple of modems to arrive to test my setup. Does anyone know if there is anything specific that needs to be done in the config file for the modem to help out and take advantage of the new carriers?

ODG

I am trying to increase our downstream bonding from 4 to 8 in our UBR10K. I have a tight budget and was looking to add 10000-SIP-600 and SPA-24XDS-SFP’s to make the transition to 8 downstreams. Our current setup consist of PRE2’s and MC20x20 cards. Will the attached layout of the port assignments work with using the DS from the card as primary for timing? Any suggestions and sample configs would be appreciated. I don’t currently have a time server and haven’t bought any cards yet.
Thanks

Current Hardware-
2x PRE2
2x DTCC
4x HH-1G
7x MC20x20V

Looking at items like Pathtrak, which requires $ setup, equipment, etc.

Also looking at Zcorum
http://www.zcorum.com/solutions/broadband-diagnostics/remote-spectrum/mo...
This uses modems as probes to send information back for reverse spectrum analysys.

Have not been able to find software that is free in this same vein.

Does it exist?

Thanks.

Docsis 1.1 and 2.0 in the same star

Ey everyone!!,

I have the following doubt and hope to help me.

I have 2 cmts with docsis 1.1 and another 2.0, can I put both cmts on the same network?

Thanks a lot for any comment!!