<html><body bgcolor="#FFFFFF"><div>I'd say that it might be a stretch with a 7223. 12.1 software is buggy and as far I know is eos. 12.2 software will crush a Npe-225 with that many modems.</div><div><br class="webkit-block-placeholder"></div><div>Might want to look at a 7225vxr instead.<br><br>Sent from my iPhone</div><div><br>On Mar 26, 2008, at 15:37, Friedrich Lobenstock <<a href="mailto:fl@fl.priv.at">fl@fl.priv.at</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><span>Hi!</span><br><span></span><br><span>René-Roger Ziesack wrote on 26/03/08 18:50 MET:</span><br><blockquote type="cite"><span>the depends on some parameters - which bandwidth do you plan per user?</span><br></blockquote><blockquote type="cite"><span>What kind of services do you plan to provide (internet only, voice services)?</span><br></blockquote><blockquote type="cite"><span>How does you network look like (SNR, ingress)?</span><br></blockquote><blockquote type="cite"><span>In general; what you described is more a minimal configuration without any redundancy.</span><br></blockquote><span></span><br><span>Attached two load and one traffic graphs of almost the same UBR with currently 406 installed modems.</span><br><span></span><br><span>Setup:</span><br><span> uBR7223 with:</span><br><span> 1x NPE-225 (128M RAM)</span><br><span> 1x I/O-FE</span><br><span> 1x PA-FE-TX</span><br><span> 1x uBR-MC16S (uBR-MC16C with Spectrum Analyzer)</span><br><span></span><br><span>To be realistic with 4000 installed modems you probably need at least 50 from your upstream ISP.</span><br><span></span><br><span>One uBR-MC16C can realistically do 20MBit (30Mbit theoretically) in the downstream - tested it myself.</span><br><span></span><br><span>At least a uBR7246 VXR with NPE-400 and 2x uBR-MC28C would be what I would choose for in your case.</span><br><span></span><br><span>But I'm not really qualified as I haven't gone there myself yet.</span><br><span></span><br><span>-- </span><br><span>MfG / Regards</span><br><span>Friedrich Lobenstock</span><br></div></blockquote><blockquote type="cite"><div>
<h1>Authorization Required</h1>
This server could not verify that you
are authorized to access the document
requested. Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.<p>
</p><hr>
<address>Apache/1.3.23 Server at admin.tv<a href="http://web.at">web.at</a> Port 80</address>
</div></blockquote><blockquote type="cite"><div>
<h1>Authorization Required</h1>
This server could not verify that you
are authorized to access the document
requested. Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.<p>
</p><hr>
<address>Apache/1.3.23 Server at admin.tv<a href="http://web.at">web.at</a> Port 80</address>
</div></blockquote><blockquote type="cite"><div>
<h1>Authorization Required</h1>
This server could not verify that you
are authorized to access the document
requested. Either you supplied the wrong
credentials (e.g., bad password), or your
browser doesn't understand how to supply
the credentials required.<p>
</p><hr>
<address>Apache/1.3.23 Server at admin.tv<a href="http://web.at">web.at</a> Port 80</address>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>cisco-ubr mailing list</span><br><span><a href="mailto:cisco-ubr@puck.nether.net">cisco-ubr@puck.nether.net</a></span><br><span><a href="https://puck.nether.net/mailman/listinfo/cisco-ubr">https://puck.nether.net/mailman/listinfo/cisco-ubr</a></span></div></blockquote></body></html>