From: Mike Williams (ccie2be@swbell.net)
Date: Thu Apr 17 2003 - 19:31:58 GMT-3
And if you get fabric-enabled line cards (first you must have the switch
fabric module), you can optionally get the Distributed Forwarding Card
(which is a PFC that goes on the linecard) and do dCEF so that all L2/L3
decisions are made on each line card and each card can send data over
the SFM directly to the other linecards without going thru the
Sup2/MSFC2. If you get fabric-only line cards (which usually have two
8Gbps connections to the SFM instead of 1 like fabric-enabled cards), it
has the DFC built-in so dCEF can be done without buying anything else.
Mike W.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
cannonr@attbi.com
Sent: Thursday, April 17, 2003 2:31 PM
To: Weidong Xiao
Cc: ccielab@groupstudy.com
Subject: Re: OT: 6509 or 7200, which is better for border router?
Just to give you an idea of what the difference is. I went from having
intervlan routing on a 7513 router running dcef to a 6500 MSFC with a
supervisor 1A engine and mls. before the change, I did a file transfer
from a
server on a different VLAN to my laptop....Tried this a few times. I
calculated about 16Mbps total throughput. When I made the change, I
copied the
same file and got over 55Mbps throughput. Keep in mind that my laptop
is a POS
with a slow hard drive. Also, this was on a MSFC1. MSFC2's do MLS
through CEF
and are supposed to be much faster.
HTH
> Hello,
>
> I'm in a process of designing a data centre. I got several 7200vxr and
> 6509 at
> my disposal.
>
> 1. What kind of cpu is 7200 running? NPE400 or R7000?
>
> 2. If both 6509 and 7200vxr are running R7000 CPU, then 7200vxr seems
> better
> from an old-fashioned router point of view (because it's running at
350Mhz,
> while 6509 is at 300Mhz). But 6509's RP is actually a 7600 router, how
can it be
> slower than 7200?
>
> 3. From CCO, I got:
> NPE-400 - performance up to 400 Kpps ---------for 7200 Service
> Performance 6 Mpps--------------for 7600
>
> Does this mean 6509 is 1500 times faster that 7200 when they are doing
> packet
> switching?
>
> 4. 6509's strongest point is MLS, is this feature important in a
> border router?
> 6509 or 7200, which is better for a border router's role?
>
>
> Many thanks,
> Weidong
>
>
> ------- SOME DETAIL:
>
> cisco 7204VXR (NPE400) processor (revision A) with 245760K/16384K
> bytes of
> memory.
> R7000 CPU at 350Mhz, Implementation 39, Rev 3.2, 256KB L2, 4096KB L3
Cache
>
> cisco 7206VXR (NPE400) processor (revision A) with 245760K/16384K
> bytes of
> memory.
> R7000 CPU at 350Mhz, Implementation 39, Rev 3.2, 256KB L2, 4096KB L3
Cache
>
> cisco Catalyst 6000 (R7000) processor with 227328K/34816K bytes of
> memory. R7000 CPU at 300Mhz, Implementation 39, Rev 2.1, 256KB L2,
> 1024KB L3 Cache
>
> cisco Cat6k-MSFC2 (R7000) processor with 229376K/32768K bytes of
> memory. R7000 CPU at 300Mhz, Implementation 39, Rev 2.1, 256KB L2,
> 1024KB L3 Cache ......
This archive was generated by hypermail 2.1.4 : Thu May 01 2003 - 13:35:57 GMT-3