managed switch

I am in need of a small managed switch.  I usually have some outside IT vendor do this for me and install but am looking to start doing these things myself with EE help.  If I get an 8 port managed switch (I was thinking about the Hp 2530-8-poe+ Switch) how would I go about getting this setup on my network?  Can someone help me with the steps to get this configured correctly so it jives with what I have right now.  I already have an HP 2902 48 port POE switch.
mkramer777Asked:
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Fred MarshallPrincipalCommented:
How you set it up on your network depends on what you want to do with it.

- You could just plug it in and leave it at that.  But then the "management" aspect wouldn't be very useful.

- I would use the WebAgent and set up SNMP according to whatever you're currently using for that.

- With an 8-port switch then you might not want to use up a port for mirroring but given that any switch should have some port margin (unused ports), you could assign a port for mirroring - even if currently unused.  Then, now or in the future you could have a mirror port that would mirror traffic from any of the other ports and get to a workstation with something like Wireshark for detailed analysis of problems, etc.

- You could set up QoS if it's necessary.

- Do you need VLANs?  You could set those up.

It's hard to guess what you might want to do so at least this is a starting point.
I would recommend the WebAgent interface if you're just learning this stuff.
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mkramer777Author Commented:
I guess what I want to do with it is piggy back off of the other HP POE switch I have right now.  We got it a month ago for our NEC VOIP phone system.  All phones are running into it and I am using the phone as a switch.  So it goes from the wall to the phone and from the phone to the computer.  I would want to add the 8 port switch to act exactly the same as the HP 48 port currently installed.  Any instructions on how to do this easily?
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Fred MarshallPrincipalCommented:
You want to use an 8-port switch to connect the phone and the computer to the wall instead of connecting the computer through the phone, right?

You don't need a managed switch for that at all.

Just plug a dumb switch into the wall and plug the computer and the phone into the switch.  
Easy enough to try.
That seems reasonable because it appears there's no VLAN, etc. involved in the first place.
But then, maybe I don't know what that phone does.  Maybe it's a superphone!!
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mkramer777Author Commented:
No i'm sorry.  I shouldn't have said anything about the computer.  I was just setting up or scenario for you.  All computers and phones are connected to this 1 HP 48 port switch.  I want the new HP 8 port switch to be exactly the same config wise as the 48 port.  How would I go about doing this?
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Fred MarshallPrincipalCommented:
I guess one would need to know how the 48-port switch is configured.....
It may not even work depending on the current configuration.  After all, a switch of that size could have any number of things configured that *combined* won't fit into an 8-port switch: VLANs with so many ports, mirror port, etc.
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mkramer777Author Commented:
So what if I plug in the 8 port switch with no config and then find the cable that I am using for my phone that is plugged into the HP 48 port switch and plug it into a port on the new 8 port switch.  Would I only get power?
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mkramer777Author Commented:
The 8 port that I'm getting would be POE of course.
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Fred MarshallPrincipalCommented:
If you connect the 8-port switch to the 48-port switch then I would be at least concerned about compatibility because the 8-port you've specified definitely will output power on its ports.  I couldn't find spec's on the 48-port you mentioned but, since you say it's POE then one has to hope that the sensing is such that they don't both try to power each other on the same wires or at least it's going to be immune to damage.  I just dont' know; and while I suspect the world has made such things "OK", I'd sure check first.

Aside from POE issues:
If you plug into any suitable port on the 48-port switch then you will surely expect to get a data connection.
So the 8-port switch will simply "extend" the number of ports available and at a different location in the building.
Then you can plug computers (and phones if appropriate) into the 8-port switch to connect to the network back into the 48-port switch.
This much is more or less a certainty.

You will certainly get data and the power output capability is there on the 8-port for the phone for example.
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