Community discussions

Search found 15 matches

by nick52
Wed Sep 12, 2007 7:35 pm
Forum: Wireless Networking
Topic: Connection limit
Replies: 5
Views: 15606

Re: Connection limit

Hi gabriellauter,
may you detail better the rules that you applied, please?

thanks,
nick52
by nick52
Tue Aug 07, 2007 7:27 pm
Forum: Wireless Networking
Topic: CPE-Antenna alignment via customer / Application available?
Replies: 149
Views: 33173

Re: CPE-Antenna alignment via customer / Application available?

Hi Chris,
may you send it also to me, please?
My e-mail is: nicolaercole@libero.it

Thanks,
nick52
by nick52
Tue Jul 03, 2007 10:19 am
Forum: Wireless Networking
Topic: VOIP limits
Replies: 22
Views: 3231

Re: VOIP limits

My tests result using a RouterBoard532 and two Ethernet interfaces (NOT Wireless interfaces) are, for different packet lenghts: L=64 bytes BW=3.90 Mbps switching performace=7500 pps L=250 bytes BW=15.5 Mbps switching performace=7700 pps L=550 bytes BW=36 Mbps switching performace=8100 pps L=1470 byt...
by nick52
Fri Jun 29, 2007 4:58 pm
Forum: Wireless Networking
Topic: VOIP limits
Replies: 22
Views: 3231

Re: VOIP limits

Does this mean that using RB532 as backbone link also has the same limitations?
Yes! for me it is so!

nick52
by nick52
Fri Jun 29, 2007 4:17 pm
Forum: Wireless Networking
Topic: VOIP limits
Replies: 22
Views: 3231

Re: VOIP limits

Each voice call with good quality would take about 64Kbps full duplex, so about 125 calls I would guess. You should consider the switching performance of the RouterBoard (in terms of packets per second, pps), not only the the throughput. Usually the payload of the VoIP packet is from 20 up 60 bytes...
by nick52
Fri Jun 22, 2007 4:50 pm
Forum: Wireless Networking
Topic: How many CPEs can an AP support?
Replies: 11
Views: 1618

Re: How many CPEs can an AP support?

In my experience in two of my POPs, with 45 clients, the uplink is very poor, i changed the omni with 3 sector and very good uplink. hi gerencia@e-digitales.com, When you changed the omni with 3 sectors, did you connect the 3 sectors to 3 Wireless Cards of one only RouterBoard or did you connect ea...
by nick52
Mon Jun 18, 2007 7:53 pm
Forum: Wireless Networking
Topic: How many CPEs can an AP support?
Replies: 11
Views: 1618

Re: How many CPEs can an AP support?

Normis,
you have not answered to my question: is this limit due to the phisical layer (radio link) ?

nick52
by nick52
Mon Jun 18, 2007 2:59 pm
Forum: Wireless Networking
Topic: How many CPEs can an AP support?
Replies: 11
Views: 1618

Re: How many CPEs can an AP support?

Normis,
in your opinion, is this limit due the phisical layer (radio link), not the performace of RouterBoad?
by nick52
Mon Jun 18, 2007 12:38 pm
Forum: Wireless Networking
Topic: How many CPEs can an AP support?
Replies: 11
Views: 1618

How many CPEs can an AP support?

Can anyone give me an answer, please? I have to serve an area of 5-6 Km of diameter by an AP at 5GHz. My idea is to use a RouterBoard 532 with 2 R52 miniPCI cards: one connetcted to an amnidirectional antenna (AP) and the other to a directive antenna. My questions are: 1. how many CPEs (Stations) ca...
by nick52
Thu Jun 07, 2007 9:20 pm
Forum: Wireless Networking
Topic: Supermicro PC and RB532
Replies: 7
Views: 1578

Re:

if it is a pure ap for users about 2-3 cards, if a bridge p-t-p 1 or 2 for good speed. CPU works worse if it has to put 2 processes - divide power for two cards - 5ghz takes more than 2,4ghz to support good link. Look at post "65km" and this what marksx wrote - p3-1ghz point to point - 80 mbps with...
by nick52
Thu Jun 07, 2007 1:46 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 11888

Re: PtP Link 65 km and at least 48 mb/s

Hi Marksx, you said: "it's PC based solution, fully outdoor, powered from 24V DC source CPU is 1000MHz with heat on 25W level (there's option with 677MHz procesor with 15W TDP)" and "... PC will consume even 2-3A (1,2A idle) of current, so CAT.5 cable is too thin to provide PoE on this distance, ......
by nick52
Mon Jun 04, 2007 8:59 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 11888

Re: PtP Link 65 km and at least 48 mb/s

Sorry Marksx, I have another question.
With the PC that you propose what is the switching performance in term of pps (packets per second) for the following packet lengths: 64, 250, 550 and 1500 bytes? You may use two Ethernet interfaces in your PC and conncect them at two PCs where run Iperf.
by nick52
Mon Jun 04, 2007 1:23 pm
Forum: Wireless Networking
Topic: PtP Link 65 km and at least 48 mb/s
Replies: 73
Views: 11888

Re: PtP Link 65 km and at least 48 mb/s

Hi Marksx, the PC dissipation is about 25 W: this means that the temperature inside the enclosure could be very high as it is placed outdoor. Do you think this high temperature could be a problem for the electronic components? In the same way, do you see problems at the startup when the temperature ...
by nick52
Tue Mar 27, 2007 12:03 pm
Forum: Wireless Networking
Topic: Supermicro PC and RB532
Replies: 7
Views: 1578

Supermicro PC and RB532

mcozio,
how many wireless cards may have a PC, at max, in your opinion?
by nick52
Mon Mar 26, 2007 12:45 pm
Forum: Wireless Networking
Topic: Supermicro PC and RB532
Replies: 7
Views: 1578

Supermicro PC and RB532

Hi MikroTik community! I have to realyze a project where a site has 4 PtP links (10 Mbps full-duplex each one) and an omnidirectional link, wich have to gather the traffic of 5 CPEs. My opinion is to use 5 RB532, four of them for each one PtP links and one for the omnidirectional link. The 5 RB532 a...