Posted: Mon Dec 01, 2008 16:20 Post subject: Channel Bonding for higher thruput
Dear Sash / Brainslayer
Do you have nay idea about "channel bonding"?
Suppose we have dual radio node like SBC 250. Assume that we establish a Point To Point link with similar radio using 2 antennas at each end. Can we combine the throughput of both radio cards into single ethernet port.
This I understand as channel bonding and claimed to produce 500Mbps (108X4) in a quad radio node Point To Point link, by XRF Tech (Architron Systems USA) any such possibility in DD-WRT ??
Posted: Mon Dec 01, 2008 16:49 Post subject: Re: Channel Bonding for higher thruput
sarvani wrote:
Dear Sash / Brainslayer
Do you have nay idea about "channel bonding"?
Suppose we have dual radio node like SBC 250. Assume that we establish a Point To Point link with similar radio using 2 antennas at each end. Can we combine the throughput of both radio cards into single ethernet port.
yes, possible
Quote:
This I understand as channel bonding and claimed to produce 500Mbps (108X4) in a quad radio node Point To Point link, by XRF Tech (Architron Systems USA) any such possibility in DD-WRT ??
this is exactly how its done in ddwrt. theoretically. it always depends on the link qualities, channels ans so on... _________________ Forum Guidelines...How to get help
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google the boning modes. its not that difficult. _________________ Forum Guidelines...How to get help
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Joined: 06 Jun 2006 Posts: 5786 Location: Dresden, Germany
Posted: Wed Dec 03, 2008 2:57 Post subject:
in newer versions there is also a special bonding mode named "duplex". so you can use 2 cards. one for transmission, one for receive _________________ one cigarette costs 2 minutes of your life.
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Posted: Thu Dec 04, 2008 2:58 Post subject: Channel Bonding for higher thruput
Hi,
I thank you for the answer.
Please consider I am a novice in this field and will be expressing so many doubts that might look silly.
I understand that in "Channel Bonding" mode, all the radios transmit at same time and receive at same time, in-order to avoid interference. is it correct??
Is it possible to establish a much bigger point to point (PTP) line like (200Mbps or so) in channel bonding mode?
what could be the practical difficulties in this type of application??
configure both radios to wds ap (and for the second device to wds sta)
set them to unbridge, but dont configure a ip for these radios.
then go to setup->networking and create a bonding with the desired mode and add both interfaces to it (ath0 and ath1)
then add the bond interface to the existing bridge by using "assign to bridge"
its pretty simple if you know how
sarvani wrote:
I understand that in "Channel Bonding" mode, all the radios transmit at same time and receive at same time, in-order to avoid interference. is it correct??
this is physically not possible. in duplex one card will receive and the other will send simultaneously. in the other modes all cards will alternate between sending and receiving
Quote:
Is it possible to establish a much bigger point to point (PTP) line like (200Mbps or so) in channel bonding mode?
yes, its only dependens on how many cards u will have in your router und the cpu power.
Quote:
what could be the practical difficulties in this type of application??
cpu power
interfearence/overlapping channels
link quality
are some of the things comming into my mind. _________________ Forum Guidelines...How to get help
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and to have the 200mbps on the eth phy u will need to have 1000baseT eth card _________________ Forum Guidelines...How to get help
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Posted: Fri May 08, 2009 21:52 Post subject: True Duplex?
Quick question: is it true duplex? or is it a psuedo-duplex? Reason I ask is that if the tx channel requires an ack back over the same ota channel, then it won't be of much use for long haul links. It would be great if you got rid of the acks. Then you could just use a unidirectional amp on the tx and create very long links.
to the fact that bonding is on software and ack on layer 2 i would say we will have ack on duplex mode also _________________ Forum Guidelines...How to get help
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