Optimum switching is the default only on platforms that can use it.
Lower-end routers like the 2500/2600/3600 can't do optimum. In those
cases, fast switching is the default.
>>> "Michael L. Williams" 6/25/01 5:12:13 PM >>>
Mohamed,
1) Fast switching is the default for everything except IP. Optimum
switching is the default for IP.]
2) Process switching is the most CPU intensive because the router has
to
processes every packet, no caching of anything. Some debug commands
can
actually overload a somewhat busy router and shouldn't be used if CPU
utilization over 50%
3) All of these are just different switching methods, the details of
which
I cannot provide. However, I do know that Cisco Express Forwarding is
not
the same as any of these methods you mention. Check out:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/switc
h_c/xcprt2/xccef.htm
(careful of wrap in the URL) for more info on CEF.
Can't help on the white papers for Dist. Switching.....
Mike W.
"Mohamed El Komy" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I'd like to know "which is the default switching in Cisco Routers
for
TCP/IP
> traffic?" Is it Process or Fast Switching?"
> Also there're some questions I need an answer to:
>
> 1- When issuning debug commands,do I need to turn off Fast Switching
?
> 2- Which leads to more CPU and Memory utilization: Process or Fast
Swithing?
> 3- What's the differnece between Fast,Autonomous,Silicon and Optimum
> Switching?
>
> I also need some technical papers about Distributed Switching using
VIP
> cards on Cisco 7500 series and its Architecture.
>
> Thanks,
> komy
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=9867&t=9753
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
