[HamWAN PSDR] Component Engineering: Ethernet Switch - 8 port

[Benjamin Krueger]

Before only a hardware failure was an spof. Now we've added a configuration
and routing protocol spof too. :)


On Thu, Feb 28, 2013 at 10:40 AM, Bart Kus <me at bartk.us> wrote:

>  Steve,
>
> I believe I said exactly this in my email.  :)  It's the advantages we
> both pointed out here that have me kind of excited for this approach.
>
> Ben,
>
> The centralization here is not a new danger.  With a single switch @ each
> site, there was always a SPoF<http://en.wikipedia.org/wiki/Single_point_of_failure>.
> A site going down needs to be pulled into redundancy planning.
>
> --Bart
>
>
>
> On 02/28/2013 08:55 AM, Steve wrote:
>
> If you are using Microtik routers... why would you not use their multiport
> router/switches? Keep it all in the same famility. Their cost is not that
> much even if you just used it as a switch compaired to Cisco. And you never
> know when the router part might be handy.
>
> The main reason is you might run into some compatibility issues down the
> road. Also, that means you have to learn and keep in your head mutiliple
> CLI's and OS's. What a pain.
>
> Just my 2 cents from working in a mixed router / switch enviroment. It
> sucks....  :-)  Yes, your tied to one vendor, but your sorta doing that
> already by selecting Microtik as your main wireless radio.
>
> Or am I missing something here??
>
> Steve N0FPF
>
>
>
> On Thu, Feb 28, 2013 at 3:50 AM, Benjamin Krueger <ben.krueger at gmail.com>wrote:
>
>> They look good. I'll take a more detailed review tomorrow. Do remember
>> that if we centralize routing, we're also centralizing failure. One bad
>> switch can now take down an entire site.
>>
>>
>>  On Thu, Feb 28, 2013 at 3:15 AM, Bart Kus <me at bartk.us> wrote:
>>
>>>  Dear Ben-Jammin',
>>>
>>> So you might recall our recent discussion where you weighed in favor of
>>> putting "real" switches into the cell sites to tie the radios together.  My
>>> major pushback to you was the price of a typical Cisco/etc switch.
>>>
>>> Well, I've updated the "Ethernet Switch - 8 port<https://www.hamwan.org/t/tiki-index.php?page=Ethernet+Switch+-+8+port&structure=HamWAN>"
>>> page with 3 new alternatives!  They're a miniscule amount of money more
>>> than the D-Link smart switch, and are in fact full blown RouterOS routers.
>>> They also feature 2 more ports (10 total) than the 8-port requirement, but
>>> the catch is only 5 of the ports are GigE.  This might be OK since all the
>>> 5SHPn radios are 100Mbit only.  The GigE requirement was for
>>> future-proofing only.
>>>
>>> The other super nice thing is they can do MPLS-TE and preserve QoS.
>>> This might simplify the network structure a lot by moving routing off of
>>> the modems and into these routers.  Instead of 7 linked routers at a busy
>>> cell site, we'd have 1.  The routing tables get a lot easier.  These
>>> routers also have more routing horsepower than what's in the modems.
>>> Especially the $105 model, which features a faster CPU and twice the RAM.
>>>
>>> 2 of the 3 are also rack-mountable, which might be a good thing in most
>>> sites.
>>>
>>> Finally, the idea of using a single OS for all networking is appealing.
>>> No need for fragmented administrator education, and all the gear is
>>> designed to work together.
>>>
>>> Let me know what you think.  I'm kinda psyched about this approach.  I
>>> ordered a RB2011UAS-2HnD-IN for my personal home use to replace my
>>> AP+router here.  We'll see how it works out here.
>>>
>>> --Bart
>>>
>>> RB2011UAS2HnDIN
>>>
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>>>
>>>
>>
>>
>>  --
>> Benjamin
>>
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>>
>
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-- 
Benjamin
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