[c-nsp] Equipment for a large-ish LAN event

[Laurent Dumont]

Apologies for that last email, Thunderbird wasn't too nice with ASCII.

      +-----------2x10G----------+CORE - Routing to external
      |                          |
      |                          |
      |                          |
      |                          |
2x10G|                          | 2x10G
      |                          |
      |                          |
      |                          |
      |                          |
      |                          |
      +--------------------------+ 3650 As Distribution switches
                  2x10G          |
                                 |
                                 |2960X as Access with 2x1G Uplinks
                                 |
                                 |
                         +-------+----------+
                         |                  |
                         |                  | Players
                         |                  |
                         +------------------+


On 12/8/2015 4:23 PM, Laurent Dumont wrote:
> Here is a rough draft of our usual topology. Imagine a few more 
> "Players" section scattered around the 2x10G rings.
>
> We are already planning for IPV6 but that really depends on our 
> upstream ability to actually provide the feature. Very good point 
> about BCP38, that is not something we had considered. We usually 
> segment the network for each row of tables which usually ends up being 
> 48 players in the same vlan.
>
> Thanks!
>
>       +-----------2x10G----------+-------CORE - Routing to external
>      |                                      |
>      |                                      |
>      |                                      |
>      |                                      |
> 2x10G|                                | 2x10G
>      |                                      |
>      |                                      |
>      +-------------------------------+     3650 - Distribution 
> switches for the 2x10G ring
>                  2x10G                |
>                                             |
>                                             |2960X as Access with 2x1G 
> Uplinks
>                                             |
>                                             |
>                         +-------+----------+
>                         |                       |
>                         |                       | Players
>                         |                       |
>                         +------------------+
>
>
>
> On 12/8/2015 3:34 PM, Mikael Abrahamsson wrote:
>> On Tue, 8 Dec 2015, Laurent Dumont wrote:
>>
>>> We were looking at either the Nexus 7004 chassis or the ASR 
>>> 9004/9006 chassis as the core "switch". We would then use 48xGigE 
>>> and 1x24 SFP+ line cards. Our actual port requirements and somewhat 
>>> flexible but we do need at least 4x10G Fiber ports. And at least 48 
>>> GigE ports for players or access switches.
>>
>> I don't really understand your topology. 2001-2004 I was involved in 
>> providing network connectivity to around 2500-4500 users at 
>> Dreamhack, back then the largest LAN in the world as far as we knew. 
>> Back then we made do with 2x100FE for 20 computers and the core 
>> connectivity was 2xGE. I'd say your design seems to fairly similar, 
>> but with 2x10GE instead, but I'm just guessing from what you wrote.
>>
>> ASR9k has been used before and will do just fine. Dreamhack has grown 
>> a bit since I was involved:
>>
>> http://www.cisco.com/c/dam/en/us/products/collateral/routers/asr-9000-series-aggregation-services-routers/dreamhack_v4acs_final.pdf 
>>
>> http://www.extremetech.com/extreme/107245-inside-the-worlds-largest-lan-party 
>>
>> http://www.pack4dreamhack.nl/interviews/dreamhack-behind-the-scenes-network/ 
>>
>>
>>> I'm also open to any suggestion within Cisco portfolio. Our needs 
>>> are pretty standard and nothing extraordinary but we would like to 
>>> use this opportunity in order to try new equipment and technologies 
>>> that are usually only seem within ISP and large networks.
>>
>> Don't forget to provide dual stack (IPv4 and IPv6) connectivity. 
>> Limit your broadcast domains (I'd say 20-50 users per broadcast 
>> domain), and make sure you do antispoofing (BCP38) for everybody.
>>
>
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