Latency

Dean_Henstock · Apr 13, 2004

Hi,

May have found the reason the latency is so high.

1. The base stations comunicate via radio to each other. if so you can add 100-200 ms per hop between the towers to the base station. plus your hop to the tower. Some may be connected via diginet.

2. I have tested the latency in diffrent weather conditions, when it rains it become higher when it gets hot same apply's so on a dry cold evening is when your latency should be the best.

Keep Surfing

koosbeer · Apr 13, 2004

not at all on topic - check your mail dean

"i may just be the dumbest guy on the forum"

Karnaugh · Apr 13, 2004

way off, sorry.

<blockquote id="quote">quote:<hr height="1" noshade id="quote">The base stations comunicate via radio to each other. if so you can add 100-200 ms per hop between the towers to the base station.<hr height="1" noshade id="quote"></blockquote id="quote">

Not so, the microwave links only add 20ms per hop at most. The problem exists as excess frame loss most certainly between the tower and the modem. Weather doesnt make enough of a difference.

- Colin Alston
colin at alston dot za dot org

"Warning: Use with extreme caution."

koosbeer · Apr 13, 2004

The latency thing influances your ping right? so what is a good ping to have for online gaming? (when playing games like wow or lineage2?) How can we make this better as the clients? (the latency problem)

"i may just be the dumbest guy on the forum"

Karnaugh · Apr 13, 2004

Latency = "Ping"

"Pinging" is a technique of testing latency by sending a packet and waiting how long it takes to return. The time it takes is called the latency.

You wouldnt want anything over 100ms for online gaming, with no packet loss, fragmentation or out of order packets.

- Colin Alston
colin at alston dot za dot org

"Warning: Use with extreme caution."

koosbeer · Apr 13, 2004

Thanx... some guys claim they game perfectly with a 400-500ms ping (or is it 300-400 [?]). Isn't it kinda impossible for a 100ms ping on non local servers?
Just asking...

"i may just be the dumbest guy on the forum"

EkilErif · Apr 13, 2004

I was gaming on local servers last year using my adsl line when I still had it. I used to get pings of between 30ms and 75ms on a really bad day it would get to about 100ms.

Rather be silent and thought of as a fool than speak and remove all doubt.

Super · Apr 13, 2004

My kids are both playing DiabloII, network connected, one on a P4 and the other on a P3, connected to a local game server and they only rarely experience any serious lagging [

] .

I am typing this on a third PC (the internet Gateway PC) [

] . My local pings average around 130ms, on about 10% signal strength, 256k package.

Dean_Henstock · Apr 13, 2004

Fair, but how many towers do you hop between before you get to a base statation ?

Keep Surfing

guest2013-1 · Apr 13, 2004

All bandwidth goes through JHB - IS, ProAsm mentioned the ping between a tower in Durban and JHB is about 23ms, it surely must be the modem to tower and back to tower that the problem exists.

PEBCAK?

gripen · Apr 13, 2004

Everything from the tower onwards should be like LAN pings. Its definitely not the distance to tower since even close to the tower the pings are the same (perhaps a few ms less).
Personally, I think the tower has a very inefficient traffic handling method or route processing bottleneck. So thus, I believe the problem is in the tower (specifically the mode in the link between the modem and the uplink to JHB-IS)

modem->air->tower panel->PROBLEM->uplink(digital)->JHB-IS->The Internet

freeek · Apr 13, 2004

diablo is bad example, its a rpg, i could play it online with my 56k. More ping needable games are first person shoot emups (counterstrik) would be a better example.

..- dot dot dash

Comrade Borris · Apr 13, 2004

<blockquote id="quote">quote:<hr height="1" noshade id="quote">

so what is a good ping to have for online gaming?

<hr height="1" noshade id="quote"></blockquote id="quote">

Between 50ms - 600ms i would guesstimate

I've tried to play Soldier of Fortune 2 on my 256K package, it really depends on which server you join [most servers are for 'low pings only']. Incidentally, the majority of pings to the server list are between 300ms - 750ms

I've played overseas (server in scotland) and had 350ms pings which were acceptable for play, although not the smoothest [jumping, falling or launching rocket grenades was a bit jumpy

]

On the other hand, a LAN buddy of mine [who lives less than 100m away from my house] also has a sentech 256k package like mine. we both connect to the same tower (66), but when he tried to connect to a server i was hosting he LAGGED far too hecticly to play... (cant remember the ping info)

Then, on the other other hand/foot a friend of mine with ADSL connected to a server i was hosting and we played with no problems, we even had a visitor from the UK playing with us.

So my question is if i am sending info from one node on tower 66 , to anther node on 66 what path does the data follow?

Does it get routed out to the net and then back?

Guess its time to invest in 802.11 hardware...

[*OFF TOPIC ALERT*] BEGIN

Does anyone here play SOF2? Anyone know of any local servers..?

[*OFF TOPIC ALERT*] END

Cheers Comrades...

Borris

ProAsm · Apr 13, 2004

Regarding the Tower hops.
Every Tower only has one hop to the Hub.
There are the odd cases when we need a 1 sector Tower somewhere to feed something special like and Airport for example, that sometimes may have 2 hops.

Ping Times.
Modem to Node on Tower = 80 to 100 ms (this is what we are working at)
Tower to Hub = 2 ms
Hub to IS = 4 ms
In Durbans case:
IS to Jhb = 22 ms (during office hours this goes to 30)

Jhb Hub = Tower 82 (Radiokop)
Dbn Hub = Tower 60 (Durban North)

There are cases where there may be several Hubs and each Hub is fed back to the Main Hub through a 155 mbit 2 ms Microwave link.

<hr noshade size="1"><center>MyWireless Stuff
The opinions expressed here are mine alone and do not necessarily reflect the opinions of my employer</center>

hArTh · Apr 13, 2004

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by ProAsm
 
There are cases where there may be several Hubs and each Hub is fed back to the Main Hub through a 155 mbit 2 ms Microwave link.
<hr height="1" noshade id="quote"></blockquote id="quote">

[}

] <- Wants one of those as his personal net connection

avr-rulez · Apr 13, 2004

Hi,

Well I suppose we should get used to looking at 300mS pings in Cape Town...[V]

AVR

freeek · Apr 13, 2004

avr-rulez : mayb not hey. It would be dumb to route cape town to jhb.
as the sat3 cable is here in melkbostraand. so we might even get a better ping

..- dot dot dash

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Latency

Dean_Henstock

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koosbeer

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Karnaugh

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koosbeer

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Karnaugh

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koosbeer

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EkilErif

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Super

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Dean_Henstock

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guest2013-1

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gripen

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freeek

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Comrade Borris

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hArTh

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avr-rulez

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freeek

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