<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<style>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
span.EmailStyle17
        {mso-style-type:personal-compose;
        font-family:Arial;
        color:windowtext;}
@page Section1
        {size:612.0pt 792.0pt;
        margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.Section1
        {page:Section1;}
-->
</style>
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>List,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m Interested in anybody that has deployed or
considered deploying the 7600 with Multiple MWAM solution for broadband
aggregation. In particular, I am interested in real world experiences of how
this box performs under load. The 7600 is a very capable platform when it comes
to its bread and butter routing/switching function and though the MWAM looks
like quite a beast itself on paper, I want to get an idea of performance
metrics other than what’s in the marketing bumf. Something a bit more ‘objective’
than the miercom reports too ;-) I know that the 7200, even with NPE G1 didn’t
quite live up to the marketing figures in the real world so even though there’s
6 processors on the MWAM, I’d be hesitant to ‘suck it and see’
on a live network and there’s only so much you can do without a full lab
environment.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>A 7600 can handle up to 4 MWAMs so its an impressive
subscriber density per box but I’m interested in how people evaluated
this against the Juniper ERX and the Redback SE for instance. Cisco comes in
cheapest but with a very centralized processing architecture whereas the
competition have distributed functionality across more intelligent line cards
and a more modular software architecture too.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m just floating this to get objective opinions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>In the first instance, the MWAM would be functioning as an
L2TP LAC until we’re ready to cut out the tunneling and terminate PPP
sessions locally on the box. All subs are PPPoE ( PPPoE auto detection and
conversion done on the DLSAM)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Also, any pointers as to load balancing traffic across MWAMs
in failure and non-failure scenarios. i.e. VLANs being trunked to all 4 MWAMs
and letting the subscriber choose between the PADOs. That scenario looks like
the no-brainer solution but there’s little you can do to coax traffic towards
or away from any 1 blade, you would have to hope that the more lightly loaded
MWAMs would respond with PADOs before the heavier loaded blades and the CPE
would accept the first offer.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What are all you kids buying for your large Ethernet BBA deployments?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
</body>
</html>