Billion 7800N

Router Fan · 12 Feb 2012 at 10:42

I will be recieving my Billion 7800N tomorrow, is there anything I should do after I recieve it?

I will be posting my full thoughts when I recieve it tomorrow.

Router Fan · 12 Feb 2012 at 13:03

InQ said:
Note that on the 1.06 range of firmwares on ADSLMax your downstream line attenuation will likely be reported at about 8dB above what it actually is and what other routers will report....thats my finding anyway! And i'm not the only one.

Does it effect the speed of the Billion?

Router Fan · 12 Feb 2012 at 13:09

PistolPete, are there any specific settings that you use?

I am on a 40dB attentuation and I am struggling to hold a 6dB connection, if I tweak the SNR down to about 5dB I can sync at 7616Kbps but it doesn't hold on my DG834GT.

Router Fan · 12 Feb 2012 at 13:56

It doesn't hold because the SNR drops too low for the router to maintain a connection.

Router Fan · 12 Feb 2012 at 17:34

InQ said:
At what noise margin does it resync?

At about 2.5dB.

Router Fan · 13 Feb 2012 at 12:00

I have finally recieved my Billion 7800N today. The sync is lower than the Netgear DGN2000 (6752Kbps on the Netgear DGN2000 and 6272Kbps on the Billion 7800N) but that could be due to the time of day.

I have tweaked the SNR down to 9dB. If the stability is good, I will try 6dB.

I have enabled PhyRe on the upstream and the downstream, is there anything else I need to do?

Router Fan · 13 Feb 2012 at 12:24

After half an hour's connection time, here are the stats:

What do you think?

Router Fan · 13 Feb 2012 at 12:49

dmsims said:
They are fine. How does it feel ? Pings ?

The internet did feel a little less responsive, but it appears to be better now.

Ping test:

Router Fan · 13 Feb 2012 at 12:54

Stats after an hour:

The corrected errors appear to be much lower than the Netgear.

Router Fan · 13 Feb 2012 at 12:59

Has anybody used SNMP with this router? Is it possible to pull line info (errors, etc.) over SNMP?

Router Fan · 13 Feb 2012 at 13:26

I am using Cacti, is it possible for you to give me some instructions on how to setup the monitoring of the line errors? I have got SNR, line speed and line attentuation setup.

Thank you.

Router Fan · 13 Feb 2012 at 14:09

Thank you PistolPete!

Router Fan · 13 Feb 2012 at 14:18

I have now updated to 1.06e. Here are the new stats:

Router Fan · 13 Feb 2012 at 14:41

I am now monitoring the SNR with Cacti:

Router Fan · 13 Feb 2012 at 15:31

Well, even with the SNR blip, the Billion didn't even flinch:

This is looking good!

Router Fan · 13 Feb 2012 at 15:36

Well, after using the Billion 7800N for a few hours, I am ready to give some initial thoughts:

The router is quite large, but the airflow is good and it doesn't get very hot.

The WiFi range is very good and this is due to the three external antennas the Billion 7800N has.

The Billion seems to keep the errors low and it seems to do well when the SNR fluctuates (see the post above).

Tweaking the SNR is very easy through the web interface.

That's it for now, I will post some more updates in a few days.

Router Fan · 13 Feb 2012 at 20:55

There's still a pretty big SNR drop:

Here are the stats:

Router Fan · 13 Feb 2012 at 20:59

I don't feel very optimistic about trying this router at 6dB somehow...

Router Fan · 13 Feb 2012 at 21:26

mikeo said:
Looking that way.

Question. Have you tried setting Phyr on and does it look like it makes any difference?

PhyRe is enabled and it doesn't look like it is making much of a difference. Is it normal for the SNR to drop this much?

Router Fan · 13 Feb 2012 at 21:34

Apparantly using PhyRe keeps the SNR lower than it should be so it shouldn't be enabled.

Has anybody heard about the SNR being double when wired?