Re: VERY OT: POE over SFP module

I do not really have any way of testing this but ... an uplink port w/ a SFP
is ignorant of a power injector being installed in the middle of the path to
the end point.

Did you have another problem such as duplex or speed issues? (just thought
of this ...) Does your power injector support gigi port ...was it a 10/100
power injector? ... They do make gig injectors ...

Another low or lower cost option is to put a small biz series gig poe switch
into your network. Example srw2024p or sge2000p switch. You can put all of
the PD'ed devices on one of these. and then etherchannel this into your
network. Just a thought ...

Of course the complexity you might be introducing by adding another switch
might not be worth it, and in simple operational costs, a 3560e is an easy
buy ...

HTH,

Andrew

On Fri, Jul 10, 2009 at 11:28 PM, Dennis Worth <dennis.worth_at_gmail.com>wrote:

> Andrew,
> I thought it should to, but no go! The ASICS of either the SFP or SWITCH
> must not support the power from the brick to the AP. I guess Cisco will get
> more money or the electrical guys will get it.
>
> Thanks for the help,
>
> On Fri, Jul 10, 2009 at 1:37 PM, ALL From_NJ <all.from.nj_at_gmail.com>wrote:
>
>> This should work. Use a gig port with a copper spf and use a power
>> injector. Should be fine, I have not used the spfs for this app, but using
>> power injectors in the past have worked fine and IMO there should not be any
>> issues in this. Of course a quick lab test is best ...
>>
>> Not sure how much I added, but I HTH,
>>
>> Andrew Lee Lissitz
>>
>>
>>
>> On Fri, Jul 10, 2009 at 3:37 PM, Dennis Worth <dennis.worth_at_gmail.com>wrote:
>>
>>> Guys,
>>>
>>> This actually started when a new wireless deployment initiative came in
>>> after deploying the 10/100 3560 switches. The plan came up to start running
>>> N-Wireless and for that to happen efficiently, a Gig port is needed. The
>>> work around for this is to run a Copper Ethernet SPF and use a power brick
>>> which had to be local to the AP and not up stream at the switch side. The
>>> true issue with that, is power in the ceilings to plug an AP is not always
>>> readily available, thus having to have not only cabling ran, but also power.
>>> Hope I said that right, I've been studying for 4 days straight, so my
>>> verbage may be off.
>>>
>>> Thanks,
>>>
>>>
>>> On Fri, Jul 10, 2009 at 12:30 PM, ALL From_NJ <all.from.nj_at_gmail.com>wrote:
>>>
>>>> Are you asking about a power injector for a fiber port? Sending power
>>>> over light? I have never heard of a PD'ed device have a fiber hook up ...
>>>>
>>>> When I think of PD'ed devices, I think of IP cameras, APs, some low end
>>>> switches (uses the copper ports), etc ... any of the POE switches can
>>>> deliver power to these types of devices and you don't need to burn one of
>>>> your uplink ports for this. How much power you need, will influence the
>>>> switch you buy.
>>>>
>>>> HTH,
>>>>
>>>> Andrew
>>>>
>>>>
>>>> On Fri, Jul 10, 2009 at 3:03 PM, Muhammad Nasim <
>>>> muhammad.nasim_at_gmail.com> wrote:
>>>>
>>>>> You mean to say that the SFP module in 3560 (which is usually used for
>>>>> uplink) and there are minimum two or maximum 4 SFP (LX OR LH OR GT) on
>>>>> the
>>>>> switches, I don't think so there is any need or requirement to have POE
>>>>> on
>>>>> these 2 or 4 ports on 3560.
>>>>> Juniper does support some of the ports in POE for example in a 24 port
>>>>> switches juniper has 8 or 12 ports POE or rest or not (partial POE )
>>>>> you can
>>>>> say ( I don't remember the exact partial POE ports on it)
>>>>>
>>>>> My answer is NO that there are no SFP modules which supports POE on
>>>>> 3560
>>>>> 10/100
>>>>>
>>>>> HTH
>>>>>
>>>>>
>>>>> 2009/7/10 Dennis Worth <dennis.worth_at_gmail.com>
>>>>>
>>>>> > Hey group,
>>>>> > Has any come across an SFP module able to run POE for a 3560 10/100
>>>>> POE
>>>>> > switch? I thought I read you could do this, but it must be another
>>>>> switch
>>>>> > brand.
>>>>> >
>>>>> > Thanks,
>>>>> >
>>>>> > --
>>>>> > Dennis Worth
>>>>> >
>>>>> >
>>>>> > Blogs and organic groups at http://www.ccie.net
>>>>> >
>>>>> >
>>>>> _______________________________________________________________________
>>>>> > Subscription information may be found at:
>>>>> > http://www.groupstudy.com/list/CCIELab.html
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>>
>>>>>
>>>>> --
>>>>> Muhammad Nasim
>>>>> Network Engineer
>>>>> Saudi Arabia
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
>>>>> _______________________________________________________________________
>>>>> Subscription information may be found at:
>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Andrew Lee Lissitz
>>>> all.from.nj_at_gmail.com
>>>>
>>>
>>>
>>>
>>> --
>>> Dennis Worth
>>>
>>
>>
>>
>> --
>> Andrew Lee Lissitz
>> all.from.nj_at_gmail.com
>>
>
>
>
> --
> Dennis Worth
>

-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net