[c-nsp] GigE Limits - PPPOE

[Paul Stewart]

Thanks for the reply.. Ironically we just discovered a few minutes ago that
this may NOT be an Occam issue....

One small part I had left out was in regards to the connection between the
7206VXR and the Occam equipment.  It's GigE but there's a 6509 in the
middle.  I was able to get ethereal in the same VLAN and sniff it out... The
PPPOE discovery packets were being seen but nothing coming back...

So, I connected directly to another port on the 7206VXR and everything
worked great.... Now I'm trying to find answers around possibly the 6509
causing the problems but stumped at this point.  The other thing to add is
that the GigE between the 6509 and 7206VXR was a dot1q trunk so I made it a
non-trunk port to see if that made any difference. The 6509 is still in the
middle today but doesn't need to be.... I just can't see why it would
matter....

Thanks again,

Paul
 

-----Original Message-----
From: Frank Bulk [mailto:frnkblk at iname.com] 
Sent: Saturday, February 10, 2007 8:37 PM
To: 'Paul Stewart'; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] GigE Limits - PPPOE

Call me crazy, but Occam is likely to have many other customers terminating
their PPPoE connections over pure Ethernet to a Cisco 7206VXR.  I would
cross-post on cisco-bba as well as push back at Occam and ask them what
their recommended BRAS config for a Cisco 7206VXR would be.

Frank 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Paul Stewart
Sent: Saturday, February 10, 2007 3:35 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] GigE Limits - PPPOE

Hi there... I'm trying to figure out if there's any limits I should be
concerned about on a 7206VXR GigE port serving PPPOE customers? I posted a
message the other day regarding a problem between an Occam DSLAM and 7206VXR
where after X number of customers, the customer started having problems
getting authenticated.  We downgraded from 12.4.x back to the latest 12.3.x
release and no difference.... Occam feels this is a Cisco problem and I
disagree at this point...

The port is pushing 5-8 Mb/s with no errors, CPU at 20% (serves other
customers via OC-3) and there's lots of IP addresses free etc.... Only
unique thing for these particular customers is they are the only customers
being served via pure ethernet....

Any MAC address limits or PPPOE session limits normally?  I figured we'd max
out CPU or other resources long before having to worry about any other
limits so just asking the question...;)

Thanks in advance,

Paul Stewart
Network Administrator
Nexicom Inc.
http://www.nexicom.net/ 


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