okay, al...
this is waaaaaaaaaay off topic but i use bgp a lot
so hopefully this will.
coupla' thingz first...
BGP rules..
do do it if....
0. understand he quirks of BGP.
1. An AS is going to allow its nets to be used as
transits.
1. multipath ingress/egress to other AS's.
2.
dont do it if....
0. if you are concerned with speed of the path...
this is an external prot and concerns itself with
best path per prescribed AS policy.
1. when you have a single connection to
another AS or the Internet.
static and default routes are your friend here.
2. when the router(s) that are running BGP have
limited memory and/or cpu horsepower. BGP constantly
updates. for example, 128 mb is a bare minimum on across
the board for a cisco...and thats just for BGP!
requires +16mb of mem & 4k changes p/minute for
the full I-net table.
3. if one really doesnt have knowledge of ROUTE filtering
or path selection processes...you'll regret not havingthius info
as BGP selection criteria or rather extensive.
bgp has only 2 policy concerns...
how a packet enters an AS or how a packet leaves an AS
the moment a packet enters another AS that AS assumes control
of that packets routing...
4. low peering bandwidth bandwidth between AS's.
self explanatory.
see what i mean i haven't got to the when to part and the msg is already too
large. and i'm sure i'm boring the list.
anyway...rsvp offline if you want to continue with my blathering.
pirahna...
>From: "Levin, Alexandre" <[EMAIL PROTECTED]>
>To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>,
>[EMAIL PROTECTED]
>Subject: RE: Multi Homing
>Date: Thu, 22 Mar 2001 09:07:12 -0800
>
>
>one more way for multihoming is
>
>http://www.radware.com/content/products/link.htm
>
>at least it's interesting solution
>
>-----Original Message-----
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, March 21, 2001 11:02 AM
>To: [EMAIL PROTECTED]
>Subject: Multi Homing
>
>
>Can anyone point me to best practice docs or diagrams
>for multi homing to ISPs, using BGP and not using BGP
>(if there is a way). I am new to this but would like to
>see some scenarios where this would be used.
>Of course things get more complicated with firewalls,
>having to prevent asymmetric connections! Any help,
>would be very appreciated.
>
>Thanks
>
>L
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