RE: cisco 3900 performance ??

Just nat (lots of nat, many inside hosts) and variable packet size...

I think of it like

2900 = T1 router
3900 = T3 router

100>Mbps = ASA or ASR (but more recently the ASA-X series)

From: Shaughn Smith [mailto:maniac.smg_at_gmail.com]
Sent: Monday, November 05, 2012 7:55 AM
To: Joseph L. Brunner
Cc: GAURAV MADAN; M Adnan; Cisco certification
Subject: Re: cisco 3900 performance ??

Once again, right product, right place. Was the 3900 doing only security
feature or more ? Nat ? Routing ? etc

If it was Security only it should have been a 55xx in the first place.

CCIE # 23962 (SP)
On Mon, Nov 5, 2012 at 2:51 PM, Joseph L. Brunner
<joe_at_affirmedsystems.com<mailto:joe_at_affirmedsystems.com>> wrote:
He asked "Megabits or Megabytes"..

My answer was neither... the 3900 product line is not good at that speed.

          " i am looking at the data sheet of Cisco 3900 router and found
that
it has the Performance up to 350 Mpbs..."

We had one recently get to 70% cpu just on a Cogent 100Mbps... think about
that for a second. Cogent is not even Level3 or ATT. So, the speeds are
asymmetric and unpredictable - 80mbps UP often, and 35Mbps down (YIKES) and a
few hours later - it flips to any reliable speed test site.

So, we had the CPU do 99% loops for a while and we go the 5525X delivered last
week :)

Problem solved

From: Shaughn Smith
[mailto:maniac.smg_at_gmail.com<mailto:maniac.smg_at_gmail.com>]
Sent: Monday, November 05, 2012 7:48 AM
To: Joseph L. Brunner
Cc: GAURAV MADAN; M Adnan; Cisco certification

Subject: Re: cisco 3900 performance ??

I dont agree at all.

Where does Cisco pitch the 3900 ? They pitch it at branch level, and as such
the throughput is fine. The richness of services is what counts for the 3900.
I dont see your "average" branch office pushing over 350mb/s continuously.

Right product, right place.

CCIE # 23962 (SP)
On Mon, Nov 5, 2012 at 2:25 PM, Joseph L. Brunner
<joe_at_affirmedsystems.com<mailto:joe_at_affirmedsystems.com>> wrote:
I meant by "stop playing around" we all want to give the 3900 a fair chance -
but CISCO has decided to (again) to release inferior hardware (compared to
Juniper or even better - Vyatta). Yes, cisco wins on features and quality of
software - but his question was based on if he would get Megabits or
Megabytes!!!! A huge difference we all know. Sometimes we try too hard, too
long to make something work - only to waste time.

My point was - if you are concerned with performance - a 2900 or 3900 series
router should not even be on the table (unless we are talking "BRANCH
OFFICE"). The workloads that router can handle before its CPU goes bonkers
are
too low for the modern internet or datacenter -where "300" anything comes in
to play.

thanks

From: GAURAV MADAN
[mailto:gauravmadan1177_at_gmail.com<mailto:gauravmadan1177_at_gmail.com>]
Sent: Monday, November 05, 2012 7:20 AM
To: Joseph L. Brunner
Cc: M Adnan; Cisco certification
Subject: Re: cisco 3900 performance ??

Guys ..

Lets not compare a 39xx with 5525 ..

39xx is not only a security device .. Its from a family of Integrated
Services
Router -2 .
And security is just one of those integrated services .

Obviously ; the performance will go down when u load box with features like
NAT , security etc etc ..
it can support routing , switching , voice , security , applications on
installed line cards etc etc

So "stop playing around " thing DOES NOT look good here :D
On Mon, Nov 5, 2012 at 4:39 PM, Joseph L. Brunner
<joe_at_affirmedsystems.com<mailto:joe_at_affirmedsystems.com><mailto:joe_at_affirmeds
ystems.com<mailto:joe_at_affirmedsystems.com>>> wrote:
Megabits...

And you wont even get that once you enable any number of inspection or
security services...

Stop playing around and use a newer 5525-x or greater ASA series..

The router's are doomed with Lame asics and tiny buffer pools for modern
traffic flows.

thanks

-----Original Message-----
From:
nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com><mailto:nobody_at_groupstudy.
com<mailto:nobody_at_groupstudy.com>>
[mailto:nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com><mailto:nobody_at_gro
upstudy.com<mailto:nobody_at_groupstudy.com>>] On Behalf Of M
Adnan
Sent: Monday, November 05, 2012 4:27 AM
To: Cisco certification
Subject: OT: cisco 3900 performance ??

Hello:-
           i am looking at the data sheet of Cisco 3900 router and found that
it has the Performance up to 350 Mpbs...

i want to know that Mbps means Mega bits/sec or Mega bytes/sec.

http://www.cisco.com/en/US/prod/collateral/routers/ps10536/data_sheet_c78_553
924.html

Thanks a lot
Muhammad Adnan

Blogs and organic groups at http://www.ccie.net
Received on Mon Nov 05 2012 - 13:07:15 ART