[c-nsp] Your opinions on router throughput

[Gert Doering]

Hi,

On Sun, Oct 29, 2006 at 12:01:53PM -0600, Tony Varriale wrote:
> Have you ever seen a non-hardware based Cisco products do MLPPP?  

Indeed...

Cisco-M-XIII>sh ppp mu

Multilink200, bundle name XXXX
  Bundle up for 6w2d
  570 lost fragments, 18471806 reordered, 0 unassigned
  57 discarded, 0 lost received, 1/255 load
  0x18CE3E received sequence, 0x7A8F55 sent sequence
  Member links: 2 active, 0 inactive (max not set, min not set)
    Se3/7:0, since 2w5d, last rcvd seq 18CE3C
    Se3/3:0, since 3d12h, last rcvd seq 18CE3D

Cisco-M-XIII>sh ver
...
cisco 7206VXR (NPE225) processor (revision A) with 114688K/16384K 
...

Of course this box is not very heavily loaded - the MLPPP bundles
are only 2x E1 each.  Add to that a few more E1s, one channelized E3, 
and two T3s and two E3s, with usually about 40-50 Mbit/s peak passing 
through the box.   CPU load usually well below 35% (and that's a NPE-225, 
not a NPE-300).

12.2(18)S10, CEF, IPv4+IPv6, 51 weeks uptime, lots of happy packets.

> Or some good ol' voice?  

I haven't used a Cisco box for voice termination yet.

OTOH our core network is carrying our own voice traffic (between Snom
phones and an Asterisk PABX) via STM-1s connecting NPE-400s and NPE-G1s
- but a STM-1 with imix traffic pattern won't saturate a NPE-400, so 
we haven't run into any router-induced issues with the VoIP stuff yet.

> Just FYI, I'm not asking this in condescending manner...I'm 
> asking becuase you didn't offer this up as an example.

Well - the original poster *did* *not* *ask* for such.

It would be so helpful if people wouldn't just stray off from the 
*questions* people ask just to tell about their grandchildren...

> Oh...could you point me to the CEF sucks info thread?  I must of missed that 
> one. :)

Just figure out how to use the list archives.  There are enough postings
where people recommend to turn off CEF, or where people state that they
are not running CEF because this-or-that problem.  Or other people claiming
that "CEF" is an acronym for "customer enragement feature".

Ceterum censeo: if you're doing something extraordinary to your NPE-300
to reach 70% CPU load with 10 Mbit/s. of load - congratulations to you,
this is an achievement.  But please don't offer this as meaningful advice 
to someone asking for "how will a NPE-300 behave under *normal* 
circumstances".

gert

-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de