Choosing L3 Switch Router with DHCP Server, PoE etc.

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swissts

Reputable
Aug 20, 2014
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4,510
Hello,

Could someone help me choosing the right combo for my small network ?

I’m looking for a robust Switch/router including the following facilities :
- 24 ports
- PoE
- DHCP server
- FanLess
- FireWall (optional ?)

My network will be quite simple :

Internet Provider box --> Switch/router --> { NAS , PoE WiFi Access Point , PoE IP Cams , Computers }

I need something robust and not to complicated as I have minimal (but not none) network admin knoledge.

I think Cisco and Lynksys have some interresting switches but I think I need some advise before buying (money is not a problem).

Wath do you think about the following combo :

- Cisco SG300-28P
- Cisco Small Business WAP551 WireLess

Thank you very much for your help!

Tom
 
Solution
B
You are missing 1 key feature you likely will never find in a actual switch. Almost all switches use asic chips so they can transfer data at the port speed with no delay. They pretty much eliminate feature that delay packets. This is only a small group but anything that actually changes the packets tend to be removed. NAT and IPSEC or even simple GRE tunnels cause huge delays....well compared to wirespeed so they are not supported.

So unless you have purchased lots of internet ip from your ISP you will need a router just to do the NAT at least.

The key thing you must watch for in PoE switches is called power budget. It costs lots more money to get a switch that can put out 30watts on all the ports compared to ones that can do...
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bill001g

Titan
Aug 9, 2012
28,325
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You are missing 1 key feature you likely will never find in a actual switch. Almost all switches use asic chips so they can transfer data at the port speed with no delay. They pretty much eliminate feature that delay packets. This is only a small group but anything that actually changes the packets tend to be removed. NAT and IPSEC or even simple GRE tunnels cause huge delays....well compared to wirespeed so they are not supported.

So unless you have purchased lots of internet ip from your ISP you will need a router just to do the NAT at least.

The key thing you must watch for in PoE switches is called power budget. It costs lots more money to get a switch that can put out 30watts on all the ports compared to ones that can do it say on half the ports or put out less power on all. This is why those cheap 4 port PoE switches are cheap because they can really only power 1 port. You must know how much power your device need and be sure the switch can provide it.

Generally PoE switches have loud fans on them because of the electronics to generate the PoE. It is unlikely you will find fanless PoE that can put out very much power. Most are smart enough to only have the fans at maximum speed when they are putting out lots of power. Still not a lot you can do about this switches like this are built to conserve rack space and small means lots of concentrated heat which needs fans.
 
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