From: ALL From_NJ (all.from.nj@gmail.com)
Date: Tue Feb 17 2009 - 13:20:31 ARST
Hello, hope all is well with you.
The link to the IP switching section is:
http://www.cisco.com/en/US/docs/ios/ipswitch/configuration/guide/12_4/isw_12_4_book.html
There are some interesting options for these commands, cef in particular.
IMO, you do not need to memorize any of this, the docs seem pretty clear for
this and as long as you know where to find this info, should be a few easy
points.
This link will help, although it probably will not answer all your
questions. It is pretty helpful though.
http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_tech_note09186a00801e1e46.shtml
HTH,
Andrew Lee Lissitz
On Tue, Feb 17, 2009 at 5:31 AM, Ruhann <groupstudy@ru.co.za> wrote:
> Hi
>
> Guys, please correct on the following
>
> In the event of load-sharing, ie one router with 2 link to another
> By default routers running IOS 12.4 and later have CEF enabled by default
> on
> most interfaces.
>
> Default CEF will use per source/destination load-balancing,
> CEF per packet can be enabled with "ip load-sharing per packet"
>
> Then, you have fast switching and process switching:
> Fast Switching (enabled with no ip cef and ip route-cache) does per
> destination load-balancing only
> when Process Switching (enabled with no ip route-cache) does per-packet
> load-balancing again.
>
> Please verify if above is correct, reason I asking, is I have found more
> descrepencies with the DOC-CD,
> claiming default cef does per dst only, but mr Doyle says it does per
> src/dst.
>
> (I have come to trust the Mr Doyle's teaching over the Doc-Cd, even though
> his articles any not only cisco related.)
>
> PS I did not mentioned here is the switching mechanism on the input
> interface, as I am only after the differences conceptually.
>
> Regards
> --
> <ruhann>
>
>
> Blogs and organic groups at http://www.ccie.net
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-- Andrew Lee Lissitz all.from.nj@gmail.comBlogs and organic groups at http://www.ccie.net
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