Billion 7800N

Router Fan

Router Fan

Router Fan

Associate
Joined
5 Feb 2012
Posts
181
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.
 
Hey ive ordered mine too :D

Id like to know how easy it is to setup, is there a latest firmware or is there a certain firmware i should be using?

Good post :)
 
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.
 
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.
Click to expand...

Does it effect the speed of the Billion?
 
I've not heard this myself, and I moved went from the initial (1.04 I think) firmware to then 1.06d and my attentuation report didn't change - upgrading to 1.06e and it still stayed the same.

Generally it's a great router for my long line, although I dont use any of the routers features so I can't comment on them.
 
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.
 
It doesnt affect the sync speed.

It doesnt hold as in it drops sync? Or it drops SNR?
 
Mine happily holds down as low as 1dB but the errors do creep up a little. I can happily leave it on 3dB target margin all day and I dont get drops due to SNR margin problems.

Settings wise, I've currently got my line set at 6dB with interleaving on whilst my ISP investigates a weird issue when the router is reporting several times a day that they are dropping LCP and my connection re-negs.

On the router itself I've got PHYR enabled and SRA enabled too as I'm on a BE line.
 
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?
 
After half an hour's connection time, here are the stats:

7800NStats1302121223PM.png


What do you think?
 
As i said yesterday that it might happen, your downstream line attenuation is higher on the 7800N although this doesnt seem to affect the sync speeds.
 
Router Fan said:
Has anybody used SNMP with this router? Is it possible to pull line info (errors, etc.) over SNMP?
Click to expand...

Yes and yes, mostly.

I graph loads of stuff but there is a bug which causes MRTG at least to go mental on the CRC and FEC errors side of things. Basically, the error counters go down as well as up - Billion have no idea why - so when the number of errors drops slightly MRTG assumes it's jumped by nearly 16 million errors and has rolled back to 0 and then almost up to where it was as MRTG can only count upwards.
This creates massively unrealistic graphs.

If you use something that can count down as well as up then you might be OK, however why the number of errors goes down is a different kettle of fish.

There are also some OIDs missing. Can't remember which off the top of my head, but some are missing the download stream OIDs when the upstream responds fine (or vice versa) - again, Billion know nothing of this.
 
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