Re: Network Design

From: Karl Young <kaelwyoung_at_netscape.net>
Date: Mon, 1 Apr 2013 09:26:35 -0400 (EDT)

Joe,
         You forgot to include a Flux-capacitor in the layer 3 switch.
                                            Karl.

-----Original Message-----
From: Joseph L. Brunner <joe_at_affirmedsystems.com>
To: aaron1 <aaron1_at_gvtc.com>; Tony Singh <mothafungla_at_gmail.com>
Cc: Cisco Fanatic <ebay_products_at_hotmail.com>; ccielab
<ccielab_at_groupstudy.com>
Sent: Sun, Mar 31, 2013 3:10 am
Subject: RE: Network Design

Easy!

Just put a permit ip any any statement on any intermediary firewalls in all
acl's as the first line, that are applied to all fw interfaces or on all
routers...

Then asymmetric packets are bound to make it through!

Problem Solved, Design Validated

-Joe

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
aaron1_at_gvtc.com
Sent: Saturday, March 30, 2013 11:03 PM
To: Tony Singh
Cc: Cisco Fanatic; ccielab_at_groupstudy.com
Subject: Re: Network Design

How do you run dual L3 wan links with lan-side fhrp and maintain routing
symmetry?

....and routing symmetry during fhrp failover...?

Aaron
----- Original Message -----
From: Tony Singh <mothafungla_at_gmail.com>
To: Cisco Fanatic <ebay_products_at_hotmail.com>
Cc: ccielab_at_groupstudy.com
Sent: Sat, 30 Mar 2013 22:54:24 -0400 (EDT)
Subject: Re: Network Design
is their a WAN that the 3945 connects to? does it run BGP?
a good design IMO is something that has dual links & meshed to account for
single link/device failure scenarios, but is engineered enough to ensure no
asymmetric routing /. routing blackholes and routing loops, run FHRP consider
that your inbound/outbound routing or east to west is tested prior to
production
if you have the 3750-x then get two this makes them stackable and one less
problem should the single device fail BR Tony On 31 March 2013 03:44, Cisco
Fanatic <ebay_products_at_hotmail.com> wrote:
> My company hired a contractor who is a CCIE and I have learned some
> good things from him. But, still one question which I am not able to
> understand and can't get an answer for - What is considered a good
> network design? The answer I always get is "it depends". Understand
> that, so let me simplify in layman terms so that I can grasp the concept
...
> What is recommended if say you have a router (say 3945), a switch (say
> 6509) and access switches (3750x). How does this fit in "The Cisco
> Three-Layered Hierarchical Model".
> Should I consider 3945 as Core and 6509 as Distribution and configure
> InterVLAN routing on the 6509, OR, it's the other way around?
> -yuri
>
>
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Received on Mon Apr 01 2013 - 09:26:35 ART

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