> Subject: [pfSense Support] Advice?
[...]
> and one for my WLAN. I have an HP proliant DL380 (2 dual core XEONS
> 2.8 with 2.5 gb RAM) sitting around and I am planning to have 5
> SCSI drives in RAID5, the 2 embedded NICs (LAN and WLAN) plus
> another NIC in a PCI slot (WAN). The number of clients on the LAN
> is between 150-190 and on the WLAN 600-800. Attached on the WLAN
> side I will have about 15 access points. The access points now are
> different brands.
> Couple of questions: Would this setup be sufficient?
> And does anyone know a way to manage the access points, not
> necessarily though the pfsense but maybe a software or hardware
> solution? Changing the access points is also part of the plan,
> Aerohive, Motorolla or Meru Networks...not sure yet.

Whether that platform is sufficient or not depends on the packet rate, 
packet size, bandwidth used (which is just packet rate * packet size), # 
of firewall rules, simultaneous NAT sessions, etc., etc., etc.

That said, it'll be pretty hard to find a routing platform *better* than 
what you have without spending $70k+ for a high-end Cisco 7600 series. 
Some dedicated routers have ASICs that provide hardware acceleration of 
routing functions; I believe Cisco has this in the 3600 series (or 
whatever has replaced it by now).

I have a Dell PowerEdge 1650, dual PIII (Xeon-class) @ 1.2GHz that can 
almost do wire-speed gigabit between two subnets; the limiting factor 
appears to be overhead and latency, not raw cpu cycles.  Oh, and it's 
running a BGP feed at the same time.  I don't think I've ever seen the 
aggregate CPU usage climb above 20%.

RAM won't be much of an issue unless you're running every single service 
available for pfSense.

I haven't stress-tested NAT functionality, so I can't offer any concrete 
data on that.

I have some limited experience with the Symbol-cum-Motorola wireless 
controller architecture in small deployments (~6 APs), and while I won't 
say the manageability is great, the overall system is quite good: a 
*reasonable* mix of performance, management capability, support, and 
price.

Some people I know who have used Meru equipment have had co-existence 
issues - specifically, the Meru equipment tends to obliterate any other 
WLANs being used in the geographic and/or spectral vicinity.  I don't know 
if this is still a problem for them.  OTOH, Meru networks tend to be 
faster than usual; I remember reading somewhere that these two aspects 
were directly linked.

-Adam Thompson
 [email protected]




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