[asterisk-biz] Paranoia, Dell & 3COM

bob murphy springsource at gmail.com
Mon Feb 4 10:49:25 CST 2008


Yes I concur that the Dell switches are a good functional choice as well.
And priced right.

On 2/4/08, Bob Pierce <pierceb at westmancom.com> wrote:
>
> We are using Dell PowerConnect 3448P for voice&data switches with qos
> and separate vlans for data and voice.
>
> Bob
>
> On Mon, 2008-02-04 at 09:55 -0500, John Williams wrote:
> > Bob,
> > What are you using for a LAN switch?
> > Thanks!
> >
> >
> > On Feb 4, 2008 9:24 AM, Bob Pierce <pierceb at westmancom.com> wrote:
> >         We are using a Dell 2950 with 2 Dual core 2GHz CPU, 2GB Ram
> >         and a
> >         Sangoma A104d-x quad T1/E1 card (which now seems to be called
> >         the A104DE
> >         on Sangoma's site). Using this system we are currently
> >         handling 82 users
> >         quite easily. We have had at least 23 concurrent calls on a
> >         few
> >         occasions with no problems. I'm pretty sure it could handle 48
> >         concurrent calls as the load on this box averages around 0.11
> >         and peaks
> >         to about 0.4
> >
> >         --
> >         Bob Pierce
> >         Network Analyst
> >         Westman Communications Group
> >
> >
> >         On Mon, 2008-02-04 at 09:04 -0500, John Williams wrote:
> >         > Thanks for that wisdom, Bob.   For this current job, we have
> >         the
> >         > luxury of running a separate network for voice, and can put
> >         aside QOS
> >         > (for now).
> >         >
> >         > Being completely paranoid,  I want to buy equipment (switch
> >         &
> >         > PC) proven to operate an *  PBX for 50-90 users and 48
> >         concurrent
> >         > calls.
> >         >
> >         > --  Dell is our preferred PC vendor.  Can anyone recommend,
> >         based on
> >         > actual experience, a Dell PC model for *, and 48 concurrent
> >         calls?
> >         > (The Dell recommended models on the Wiki are out of date)
> >         >
> >         > --  3COM is our preferred basic switch vendor.  Can anyone
> >         recommend,
> >         > based on actual experience, a 3COM switch model for *, and
> >         48
> >         > concurrent calls?
> >         >
> >         > Thanks in advance for aiding my considerable paranoia!
> >         >
> >         >
> >         > On Feb 3, 2008 5:46 PM, bob murphy <springsource at gmail.com>
> >         wrote:
> >         >         Once you start adding L3 to even L6 and 7 services
> >         the party
> >         >         gets smaller and more expensive.  At the point you
> >         are
> >         >         building a network that requires QOS, Priority, Per
> >         port
> >         >         VLAN's etc you may as well build with service
> >         provider class
> >         >         switching gear like Foundry and Cisco etc.  It will
> >         help us
> >         >         all by eliminating complaints about "VOIP and
> >         Asterisk" being
> >         >         not ready for prime deployment due to maturity
> >         issues when in
> >         >         reality, it works fine on a well designed and
> >         constructed
> >         >         network.  Most of the time the Telephony system
> >         get's blamed
> >         >         for what is actually a poorly designed network.
> >          "Low cost"
> >         >         and "Business grade" may not coexist yet.  So just
> >         bite the
> >         >         bullet and use Foundry or Cisco.  We have deployed a
> >         couple
> >         >         systems with over 400 IP voice endpoints and things
> >         are lookin
> >         >         good because of the proper L3 and QOS functionality
> >         that was
> >         >         properly designed in to the final solution.
> >         >
> >         >         Or, with cheap MAC switching you can just run
> >         seperate
> >         >         networks.  I mean, why complicate things by
> >         converging voice
> >         >         and data.  With L2 switching equipment so cheap.
> >          But you'll
> >         >         have to run two cat6 drops everywhere.  It's a trade
> >         off.  We
> >         >         have done it both ways.
> >         >
> >         >         Bob
> >         >         Arreva Communications
> >         >
> >         >
> >         >         On 2/3/08, John Williams <jw.ip.pbx at gmail.com>
> >         wrote:
> >         >                 Deal List,  Who are the low cost QOS LAN
> >         switch
> >         >                 vendors with products supported by * for
> >         business
> >         >                 grade voice service?  Thanks
> >         >
> >         >
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> >         >
> >         >
> >         >         --
> >         >         Bob Murphy
> >         >         Principal
> >         >
> >         >
> >         >         Arreva Communications
> >         >         www.arrevausa.com
> >         >
> >         >         949-334-2022-SIP Connect
> >         >         949-842-8450-Wireless
> >         >         949-349-0209-Fax
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-- 
Bob Murphy
Principal


Arreva Communications
www.arrevausa.com

949-334-2022-SIP Connect
949-842-8450-Wireless
949-349-0209-Fax
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