[c-nsp] Cisco vs. Juniper

[Mackinnon, Ian]

Not wanting to disagree with the mighty Steinar :-)
If you have any significant amount of traffic you need to be sampling at
over 1/1000 or you will kill the link to main cpu. Juniper and our 3rd
party support company explicitly said "don't do it"

We had a couple of incidents where our traffic went to a full 1G and our
1/100 sampling totally killed the box.

Up until then, I thought if a M7i did anything, it did it at full line
rate, always.

Ian


-----Original Message-----
From: sthaug at nethelp.no [mailto:sthaug at nethelp.no] 
Sent: 02 November 2009 15:53
To: Mackinnon, Ian
Cc: zeusdadog at gmail.com; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Cisco vs. Juniper

> In the past I have compared M7i with ASR1k

The M7i is getting a bit long in the tooth, so a better comparison
might be ASR1k vs MX80. One important difference if you need a box
*now* is of course that MX80 has been announced but I haven't seen it
in the price lists yet.

> The major comparison seemed to be that for about the same sort of
money
> Cisco gave you a box with 4 Gig interfaces present whilst J gave you
> one, and adding more was very expensive.

Agreed, full capacity GigE ports on the M7i are expensive. However,
the (overbooked) 4 port IQ2 works very well.

> Throughputs would have been about the same, and one thing that bit us
on
> the Juniper side was you can't hope to use Netflow in a real
environment
> without an expensive services PIC.

Here I'd have to disagree. Sampled netflow works very well without a
services PIC. If you don't do sampling the situation is different.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


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