[c-nsp] Cisco 6509 and Bus speeds

[Tim Stevenson]

The 6802 module is not shipping. 6704 is shipping, and is nearly line rate 
at large packet sizes. If you want to deploy now or near future, you'll 
have to use the 6704. If you really want completely non-blocking 10G with 
this card, you can use only 2 ports on the card.

Tim

At 08:18 AM 1/13/2005, cisco-nsp-request at puck.nether.net averred:
>Message: 11
>Date: Thu, 13 Jan 2005 09:17:20 -0700
>From: Clinton Work <clinton at scripty.com>
>Subject: Re: [c-nsp] Cisco 6509 and Bus speeds
>To: Marcel Lemmen <marcel at support.net>
>Cc: cisco-nsp at puck.nether.net
>Message-ID: <41E69F10.90109 at scripty.com>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>
>If you want line-rate performance on the 10GigE ports you should look at
>the WS-X6802-10GE module. The WS-X6704-10GE module will not do line-rate
>with all four ports in use. The module also has a much smaller packet
>buffer (16MB).
>
>http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a00801dce34.html
>WS-X6802-10GE 2 port x 10 GE, dCEF720
>WS-X6704-10GE 4 Port x 10 GE, CEF7201*
>
>Marcel Lemmen wrote:
> > 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?
>



Tim Stevenson, tstevens at cisco.com
Routing & Switching CCIE #5561
Technical Marketing Engineer, Catalyst 6500
Cisco Systems, http://www.cisco.com
IP Phone: 408-526-6759
********************************************************
The contents of this message may be *Cisco Confidential*
and are intended for the specified recipients only.