[c-nsp] Peoples experiences with the 3825

[Tom Storey]

Hi Ian,

It will be based on ethernet, so we'll be trunking VLANs back to  
central locations for termination of PPPoE etc.

Ive looked at the specs, but generally the figures are quoted for  
64byte packets, and as you say, no features turned on. So Im looking  
for some real world examples to go by. :-)

Tom

On 26/06/2008, at 11:09 PM, Ian MacKinnon wrote:

> Hi Tom,
>
> The quick product guide says a 3825 will top out at 179.2Mbps
>
> http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf
>
> This is usually with no features turned on
>
> 3845 will go up to 256M
>
> Are you looking at a POS interface to connect to the 155 ring? Can  
> you even get a POS Network Module?
>
> Ian
>
>
> Tom Storey wrote:
>> Hi all,
>>
>> Looking for some feedback on the 3825.
>>
>> Im at a phase of planning a new network which will consist of  
>> approx 29
>> tower sites in a rural part of Australia.
>>
>> Im looking at the possibility of sticking 3825's in some strategic
>> locations to aggregate customer sessions and ship them off to some  
>> LNS's
>> back in the CBD of the nearest capital city. The core of this network
>> will be built around a ring of 155mbit microwave radios, and we'll be
>> trunking multiple towers back to said strategic locations for
>> termination/aggregation.
>>
>> Theres likely to be a couple of thousand people in total hanging  
>> off the
>> network, but Im wondering if the 3825 would be up to this task. They
>> seem like relatively beasty boxes.
>>
>> On average a single router would be handling several hundred sessions
>> (PPPoE aggregation into L2TP tunnels back to the LNSs), and would  
>> need
>> to be able to handle as much of 155mbit as possible due to the ring
>> configuration, so if a link dies somewhere I need to be sure that a
>> single router will handle all of the traffic.
>>
>> What are peoples experiences with aggregating PPPoE and routing  
>> traffic?
>> How much of each have you managed to get onto a single box before
>> running out of CPU/RAM? Anything I should be careful about if chosing
>> this platform?
>>
>> If the 3825 is no good I'll probably look at deploying 7201's, they
>> should handle what Im looking for, but the 3825 has the advantage of
>> NM-xESWs, removing a device from each site. :-)
>>
>> Cheers,
>> Tom
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