[AusNOG] Tech Q: Looking for Cheapest 10G Switches forHobby Lan.

[Craig Meyers]

With the ether channel setups what throughput are you seeing?

At the high end of town, I find TCP issues to be a source of problems.

With my NAS setup at home, I max at about 20MByte/sec. Win7 desktop
to/from openfiler NAS. Doing some wiresharking/research on it, it's due
to window size/latency issues.

Absolute cheapest would be to make sure you get 10Gb adapters with 2x
10Gb ports and setup a ring topology between the PCs. Saves buying a
switch. Bit fidgety, but it'll get you started.

-- Craig




-----Original Message-----
From: ausnog-bounces at lists.ausnog.net
[mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Matthew
Moyle-Croft
Sent: Friday, 16 July 2010 3:05 PM
To: Trent Lloyd
Cc: ausnog at ausnog.net
Subject: Re: [AusNOG] Tech Q: Looking for Cheapest 10G Switches forHobby
Lan.

Have you looked at how much bandwidth you actually need?

This maybe one situation where throwing bandwidth at a problem doesn't
really help as more is never enough.

Consider, if you spend money on capable switches, of using some of the
queuing and QoS stuff in the switches to "reserve" bandwidth for gaming
and/or other latency/time sensitive tasks.

Also, you can build a big, fat, network for these events, but really,
how much do you need?   Can you build two networks for less money, one
for gaming, one for "other" but avoid having the expense of 10GE?

These maybe too hard or not feasible, but consider other options.

(I also accept that a 10GE network maybe a selling point for a LAN party
and so desirable from that point of view).

MMC


On 16/07/2010, at 12:49 PM, Trent Lloyd wrote:

> I've been looking at this for RFLAN in WA
> 
> 
> Juniper seems reasonably good value for having uplinks @ 10GE.. but
the killer in price is the 10GE aggregation switch, 100 might not be so
bad but for us I need 300-400 ports so a big 20-40+ port 10GE
aggregation switch is required and not cheap.  but mind it's not just
base switch cost, but also transceivers and cables you have to worry
about.
> 
> 
> Another option we were considering to reduce cost was trunking between
stacks of 3200/4200s.. we run rows 4 switches long stacked, 6 rows.. run
a daisy chain of trunks @ 10G between each row. 
> 
> 
> 
> another another option is to get a bit fat center switch with a big
backplane and lots of ports, and cable out patch panels rather than
switches to each person.
> 
> Regards,
> Trent
> 
> 
> On 16/07/2010, at 10:58 AM, Jason Bailey wrote:
> 
>> +1 for the Juniper EX3200s. They are excellent and relatively
inexpensive.
>> 
>> Jason
>> 
>> On 16/07/2010 10:56 AM, McDonald Richards wrote:
>>> J EX3200s are probably the cheapest option I can think of for 10G 
>>> trunk facing and GE to clients. I have also heard H3C are pretty 
>>> competitive but have not actually used their gear.
>>> 
>>> Macca
>>> 
>>> *From:* ausnog-bounces at lists.ausnog.net 
>>> [mailto:ausnog-bounces at lists.ausnog.net] *On Behalf Of *Sean K. Finn
>>> *Sent:* Friday, 16 July 2010 12:19 PM
>>> *To:* 'ausnog at ausnog.net'
>>> *Subject:* [AusNOG] Tech Q: Looking for Cheapest 10G Switches for
Hobby Lan.
>>> 
>>> Hi All,
>>> 
>>> Some of our staff run a hobby LAN one day a month that attracts 
>>> about 100 players for 12-24 hours.
>>> 
>>> Currently the guys are running multi 1GB trunks, some 6GB trunks 
>>> between switches and 4GB trunks to servers for the day, but there 
>>> has been talk of wanting to experiment with 10Gb gear at a hobby
level.
>>> 
>>> The budget isn't huge, maybe about $1,000 per month to spend on 
>>> gear, but LAN days are usually good test beds to skill up and play 
>>> with this kind of gear.
>>> 
>>> My Question is :What's the cheapest and nastiest 10Gb consumer grade

>>> gear, if it exists yet, that anyone knows about?
>>> 
>>> Both switches and cards.
>>> 
>>> Some of the guys mentioned http://www.extremenetworks.com/ , not 
>>> sure if this is nasty enough though?
>>> 
>>> Cheers,
>>> 
>>> Sean.
>>> 
>>> 


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