19 messages in net.nether.puck.cisco-nsp[c-nsp] Cisco 6509 and Bus speeds
FromSent OnAttachments
Marcel LemmenJan 13, 2005 7:44 am 
Colin WhittakerJan 13, 2005 8:23 am 
Arnold NipperJan 13, 2005 8:32 am 
Paul SchopisJan 13, 2005 11:16 am 
Clinton WorkJan 13, 2005 11:17 am 
Arnold NipperJan 13, 2005 11:28 am 
Ethern M.C. LinJan 13, 2005 11:36 am 
Arnold NipperJan 13, 2005 11:42 am 
Tim WindersJan 13, 2005 11:43 am 
Tim StevensonJan 13, 2005 11:51 am 
Tim StevensonJan 13, 2005 11:51 am 
Tim StevensonJan 13, 2005 11:51 am 
Mikael AbrahamssonJan 13, 2005 12:12 pm 
Ryan O'ConnellJan 13, 2005 12:23 pm 
Ian CoxJan 13, 2005 3:38 pm 
Brad BoninJan 13, 2005 3:44 pm 
Tim StevensonJan 13, 2005 4:12 pm 
Paul SchopisJan 13, 2005 4:17 pm 
Michael LoftisJan 13, 2005 5:12 pm 
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Subject:[c-nsp] Cisco 6509 and Bus speedsActions...
From:Brad Bonin (br@cisco.com)
Date:Jan 13, 2005 3:44:46 pm
List:net.nether.puck.cisco-nsp

Marcel,

I suggest you work with your Cisco Sales team or a Cisco partner to determine
the best hardware configuration. High bandwidth between fabric enabled modules can be easily accomplished, however, if high PPS
is required, then you need to look at 1) the types of cards being used in the chassis and 2) whether or not you need DFC's.

I would take a look at the applications you think will be filling up those 10G
ports to get a better feel for your network characteristics. From there, you can determine if 15Mpps will suffice (what you
get when you mix non-fabric and fabric cards together w/o DFC), 30Mpps (what you get with fabric enabled cards), or higher
(fabric enabled cards with DFC's).

Or, you can just get 68xx for 10GE and 67xx with DFC3 for all other ports to
ensure maximum PPS and BW:-)

Brad br@cisco.com

-----Original Message----- From: cisc@puck.nether.net
[mailto:cisc@puck.nether.net] On Behalf Of Marcel Lemmen Sent: Thursday, January 13, 2005 6:45 AM To: cisc@puck.nether.net Subject: [c-nsp] Cisco 6509 and Bus speeds

Hi all,

My company is looking for a replacement of our Cisco 4006 and we're looking at
the 6509 with Sup720. I do however have some questions regarding the Bus and backplane speeds which are a bit unclear to me. Perhaps somebody could help me with this one.

We are looking for a configuration with a Sup720, 2x 4 port 10GE line-cards, a
48port 10/100/1000 and a 24port 1GigE SFP.

I have some nasty experiences with promised performance and actual performance,
like a 7500 with GEIP+ witch only handles 400Mbit/s, a 4006 switch with 3x24Gbit/s SwitchEngines and gives packetloss at 1.8Gbp/s
etc.

The c6509 with Sup720 can handle 720Gbps of switching traffic in total, but what
happens if I transfer 40Gbps from one slot to the other slot with 4x10GE (since we have 8 10GE ports)? As far as I know the c6509
has a 8Gbps backplane and therfor you shouldn't be able to transfer more then 8Gbps from one slot to another, or am I wrong in this
one? Using dCEF it would be possible to transfer 40Gbps of traffice within one slot but not between slots or not?

Could someone explain this to me because I want to know a bit more about the
architecture so I won't make the same mistake as I did earlier :)

Thank you in advance!

With kind regards,

Marcel Lemmen

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