[nsp] does it switch or route

gab.seun jones.ewulomi seun_ewulomi at hotmail.com
Wed May 21 14:08:31 EDT 2003


Hi,

I now understand thoroughly now. Thanks everyone for your time.

regards,
gab


>From: Gert Doering <gert at greenie.muc.de>
>To: "gab.seun jones.ewulomi" <seun_ewulomi at hotmail.com>
>CC: steve at telecomplete.co.uk, cisco-nsp at puck.nether.net
>Subject: Re: [nsp] does it switch or route
>Date: Tue, 20 May 2003 21:29:38 +0200
>
>hi,
>
>On Tue, May 20, 2003 at 04:21:59PM +0100, gab.seun jones.ewulomi wrote:
> > Now again when if the same 10 host and 69 host then send a packet to 
>each
> > other(assuming the aging timer for the arp entry hasnt expired). It will 
>be
> > a straight layer 2 conversation.
>
>That would be very unusual.  Unless there is an IP routing entry in
>the hosts's IP routing table that points to the local LAN, it should
>never bypass this and go directly to the ARP cache (whatever is in
>there).
>
>You can easily verify this using traceroute, though.
>
> > So yes it does both. Routes it when it hasnt heard of the converstaion
> > between two end point before and after that it swithes or the 
>converstaion
> > is transmitted on the data link
>
>Unlikely (well - there are switches that do that, Cisco MLS for example,
>but that's not a standard approach).
>
>gert
>--
>USENET is *not* the non-clickable part of WWW!
>                                                            
>//www.muc.de/~gert/
>Gert Doering - Munich, Germany                             
>gert at greenie.muc.de
>fax: +49-89-35655025                        
>gert.doering at physik.tu-muenchen.de

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