[c-nsp] 3845 + BGP + FW/NAT vs. 6503+Sup32 ?

[Francois Corthésy]

Hi Matthew,

Just a quick note about the Sup32-GE-3B, the 8 SFP are only GigE, not 
10/100 compatible even though you can put copper SFP modules. So 
depending on your neighboring equipments it can be a bit of a problem.
 From my understanding Cisco doesn't recommend using the 9th port for 
anything else than management, yet its the only port that is 
10/100/1000, but maybe others have had could experiences of using it as 
a full fledged interface.


Francois.

matthew zeier wrote:
> I know this is a seemingly ridiculous comparison but the pricing on a 3845 
> with extra memory came in only slightly cheaper than a 6503+Sup32.
>
> I posted earlier about the 3800 as a dual feed BGP router and got mixed feedback.
>
> The basic network will have two ISPs coming across ethernet (by way of a 
> DS3-ethernet bridge - Overture ISG 45).  The router will peer with both 
> providers and take full routes.
>
> Inside I'll have four or more networks in RFC1918 space NAT'd out and use 
> IOS-FW to policy traffic between networks.  Since the 3845 only comes with two 
> onboard NICs, I'll use sub-interfaces - the Sup32 has 9 and I'll probably just 
> use one per network.
>
> Today, inter-vlan traffic is < 10Mbps and aggregate outbound traffic is 
> ~6Mbps.  How long can I expect the 3845 to live?  How much traffic can I 
> expect it to push inter-vlan?  Would I be "better" off spending the $5k or so 
> more and getting the 6503+Sup32?
>
> I'm concerned about getting a box that will suffer under traffic loads and 
> ACL/FW/NAT rules.  Any help would be great!
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