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Chatter about DOCSIS, provisioning, networks, and CMTS gear.

Motorolla DCM 2000 Fail Led Blinking Orange

Forums: 

I have a Motorolla DCM-2000 . when i turn it on the fail led keeps blinking in Orange .. in the Manual it says that if the fail led is in orange color then will have to replace it. in my case it's blinking .. what does this mean .

Sipinfo (DTMF) issue - Arris eMTAs

Forums: 

Hi all,

does anyone have any experience regarding the use of sipinfo on Arris MTAs? We have problems where the VoIP provider doesn't receive the DTMF and they are using sipinfo...

We are using the following codecs:
SnmpMibObject enterprises.4115.11.1.8.0 String "telephone-event;ALAW;PCMA;G729" ;

It seems that the sipinfo isn't sent at all although it should be enabled with telephone-event... is anything other to set to get it working?

TIA

ZEROMAC on UBR7246

Forums: 

Hi,
For some time now there was messages messing my logs on UBR 7246:

%UBR7200-3-ZEROMAC: Error: Mac addr is zero sent to CMTS cmts_tables_add: Cable4/0 IP XX.YY.ZZ.VV SID 104!
and naturally then:
%IP-4-ZERO_ADDR: Zero MAC address for XX.YY.ZZ.VV in ARP cache

Users with that sids are legit computers free of wiruses etc. Zero MAC is sent usually after computer with that IP goes down.
I didn't find any command to block zero MACs from getting into ARP table, and as seen UBR doesn't prevent it either.

Any ideas? Maybe someone did manage to prevent this from happening?

Thanks!

Who has a Casa10k installed?

Forums: 

Hi all,

yeah, i think the topic will say all? ;) Has someone running a Casa 10200 in his headend an will share some pictures of the installed chassis?

I have already a Casa 3200 installed in our lab, aside from a Cisco 10k and Arris C4 but i want to see some pictures of the carrier grade class of Casa-Systems in operation ;)

Best regards,

wittmann

Modems don't see 2nd secondary gateway address on uBR cable interface

Forums: 

They originally did, but for some reason the new secondary no longer seems to be bound to the MAC address of the blade. Can change to the 1st secondary and all is cool. Can ping the 2nd secondary from any number of other routers and networks to indicate the routing is fine on that side of things. It just seems to have disapperared as a 2nd gateway for a select group of modems on an exclusive network statically routed to a local college campus. ARP requests are there from the CPE side of the modem and sh arp | include 'laptop nic' from the uBR sees the MAC address of the CPE.

Arris C4 licence model questions ...

Forums: 

Hello,

We are looking to buy a Arris C4 or C4-C ...
But we have questions regarding Arris licence model.

Resellers want to sell us a "starting kit" with 16D+12U CAMs.

What is not clear for us in the Arris brochure is if the software licence cost is for each upstream/downstream channel o for each downstream/upstream CAM and if all extra features like Diffserv, VLAN, OSPF and BGP are available with any restrictions (per interface, per use,...)

With Arris C3 you can only create 2 VLANs with standard software and OSPF is limited to one interface for each licence ..

How cable modems chooses upstreams

Forums: 

Hi,
Can someone explain how cable modems chooses upstreams?

Say I have 2 logical channels on an upstream port, the first with 10dB SNR threshold, the other 20dB. If the upstream have 30dB SNR or more, modems are all using the 10dB. Why any of them not using the speedier modulation on 20dB?

Christian

packet loss on FastEthernet intreface

Forums: 

I need help to diagnose and solve a problem with packet loss on FastEthernet interface on UBR7246 (not VXR).
When I ping this interface in way that simulates VoIP traffic (every 20 ms packet size of 350 bytes) between 5 and 30 packets of 1000 are lost.
Number of lost packets correlates with traffic through CMTS. For instance, if I shutdown cable interface, and thus eliminating traffic, there is no loss. On the other hand, even small traffic, eg. 1 MBit/s, causes packet loss.
Such loss doesn't make any trouble for internet users but has severe impact on telephone users.

firmware question

Forums: 

Hello,

Do the Arris TM402, TM502 and TM602 series EMTAs all take the same firmware? I have the latest (TS 6.1.77 DOCSIS - PacketCable SIP
Oct 30, 2009) I have only one TM602G and it refuses to take the firmware. I'm wondering if it is just bad because it's my only one.

Thanks,
Eric

Firmware to SB3100 & SB4100

Forums: 

Hello,
Somebody have the las version of firmware to SB3100 and SB4100?

As I know, are:

To SB3100: SB3100-1.4.9.4-SCM02-NOSH
To SB4100: SB4100-1.4.9.9-SCM02-NOSH

Thanks,

DrakerDG

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