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Full Duplex PTP over 7 to 14Kms

Posted: Fri Feb 27, 2015 2:10 pm
by n21roadie
Anybody using Mikrotik full duplex (x4) in PTP links between 7 to 14Kms?
What throughput can be expected ?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 01, 2016 6:05 am
by saintofinternet
no mikrotik products come in full duplex modes as of today.

you need 4 radios cards 2 on each side for full duplex to work.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 01, 2016 7:15 am
by scampbell
no mikrotik products come in full duplex modes as of today.

you need 4 radios cards 2 on each side for full duplex to work.
Or use OSPF and 4 QRT's for example and base setup on http://wiki.mikrotik.com/wiki/Dual_Setup_with_OSPF.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 01, 2016 10:25 am
by saintofinternet
thank you.

that looks interesting but has anyone deployed it in actual environment?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 01, 2016 10:08 pm
by scampbell
thank you.

that looks interesting but has anyone deployed it in actual environment?
I have a few sites doing that - for example we use an RB850GX2 at each end and 4 x QRT's.

Set up two unique /29 subnets for each wireless link and the radio's as simple bridge (bridge/station-bridge).

Apply the different costs to the RB850 interfaces facing the radios so traffic flows in a clockwise (or CCW) direction and you will see uplink on one segnment and downlink on the other.

Disable one link to prove recovery. This gives full duplex and fail-over should one link fail.

Another way (not personally tried) would be to use bonding and two layer two bridges. This is not strictly full duplex but gives good aggregated bandwidth and failover :-) http://forum.mikrotik.com/viewtopic.php?t=70808

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Feb 02, 2016 1:01 am
by InoX
I had for 2 years a link with 4xSXT bonded. It worked very well.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Feb 02, 2016 11:58 am
by p3rad0x
90% of our towers uses this method.

Usually we use LigoWave because they are more reliable in high noise environments.

For the other links where there is no interference we use rb912uag-5hpnd and bridge them.

Gets 100Mbps + both ways.

If one link dies ospf takes care of the rest.

I would say it works so well that if you don't have network monitoring you wont notice when one link goes down

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Feb 02, 2016 12:00 pm
by czolo
I had for 2 years a link with 4xSXT bonded. It worked very well.
What througput have you there?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Sun Feb 28, 2016 12:18 pm
by ShayanFiroozi
Hi,

guys you think interface bonding is better than OSPF full duplex ?? any real experience ?

thanks

Re: Full Duplex PTP over 7 to 14Kms

Posted: Sun Feb 28, 2016 7:13 pm
by czolo
In my opinion: ospf is better.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Sun Feb 28, 2016 8:44 pm
by n21roadie
90% of our towers uses this method.

Usually we use LigoWave because they are more reliable in high noise environments.

For the other links where there is no interference we use rb912uag-5hpnd and bridge them.

Gets 100Mbps + both ways.

If one link dies ospf takes care of the rest.

I would say it works so well that if you don't have network monitoring you wont notice when one link goes down
Can I ask the max distance between towers using this method?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 29, 2016 5:30 am
by saintofinternet
I had for 2 years a link with 4xSXT bonded. It worked very well.

could you share your code used for bonding the 4 x SXT please? which device was used to bond them?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Mon Feb 29, 2016 5:17 pm
by InoX
I've just found my first bonding result. Sadly the tutorial no longer exist. I've used 4xSXT and 2xRB750GL.
http://community.ubnt.com/t5/Business-T ... d-p/194143

Found it : http://wiki.specialistoff.net/index.php ... ti:Bonding

It was a better choice for me than full duplex.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 5:55 am
by saintofinternet
I've just found my first bonding result. Sadly the tutorial no longer exist. I've used 4xSXT and 2xRB750GL.
http://community.ubnt.com/t5/Business-T ... d-p/194143

Found it : http://wiki.specialistoff.net/index.php ... ti:Bonding

It was a better choice for me than full duplex.
the last link is in Russian... can it be seen in English?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 6:00 am
by ShayanFiroozi
I've just found my first bonding result. Sadly the tutorial no longer exist. I've used 4xSXT and 2xRB750GL.
http://community.ubnt.com/t5/Business-T ... d-p/194143

Found it : http://wiki.specialistoff.net/index.php ... ti:Bonding

It was a better choice for me than full duplex.
the last link is in Russian... can it be seen in English?

Google Translate :D

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 1:41 pm
by p3rad0x
90% of our towers uses this method.

Usually we use LigoWave because they are more reliable in high noise environments.

For the other links where there is no interference we use rb912uag-5hpnd and bridge them.

Gets 100Mbps + both ways.

If one link dies ospf takes care of the rest.

I would say it works so well that if you don't have network monitoring you wont notice when one link goes down
Can I ask the max distance between towers using this method?
Hi,

The longest link we have is about 150km.

Using RBNetmetal 5's and the biggest dishes ubnt makes.

Signal is -57/-55 getting about 40-60Mbps

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 2:18 pm
by czolo
The longest link we have is about 150km.
Using RBNetmetal 5's and the biggest dishes ubnt makes.
Signal is -57/-55 getting about 40-60Mbps
Respect!
Do you have any photos?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 2:32 pm
by p3rad0x
The longest link we have is about 150km.
Using RBNetmetal 5's and the biggest dishes ubnt makes.
Signal is -57/-55 getting about 40-60Mbps
Respect!
Do you have any photos?
Not of the physical equipment, but I can share point A and B

I can share a screenshots of the signal and distance

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 4:33 pm
by czolo
Not of the physical equipment, but I can share point A and B
I can share a screenshots of the signal and distance
It is something to be proud
Show us :shock:

Re: Full Duplex PTP over 7 to 14Kms

Posted: Tue Mar 01, 2016 5:10 pm
by p3rad0x
Hopefully wierd stuff don't happen to the layout

Link 1 Signal/Uptime/Distance

Image

Link 2 Signal/Uptime/Distance

Image

Link1 Signal/CCQ

Image

Link2 Signal/CCQ

Image

Link1 tx

Image

Link2 rx

Image

Google earth distance and elevation profile

Image

Re: Full Duplex PTP over 7 to 14Kms

Posted: Wed Mar 02, 2016 12:17 pm
by saintofinternet
Hopefully wierd stuff don't happen to the layout
can i keep your photo around all my installations as an inspiration?? :)

are you having a clear LOS for 150kms? because i thought the earth's curvature spoils RF signals when you work in the GHz frequencies.

please correct me if i am wrong.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Wed Mar 02, 2016 12:57 pm
by p3rad0x
Hopefully wierd stuff don't happen to the layout
can i keep your photo around all my installations as an inspiration?? :)

are you having a clear LOS for 150kms? because i thought the earth's curvature spoils RF signals when you work in the GHz frequencies.

please correct me if i am wrong.
That is true.

I haven't checked LOS when curvature is calculated.

For this link I only want stability, the tower at B are providing internet to mostly farmers with voip, since there is no cellphone reception.

I think it is near perfect because point A has a elevation of 1.9Km and B 1.1Km

Any good tool to check the fresnel clerance?

Re: Full Duplex PTP over 7 to 14Kms

Posted: Wed Mar 02, 2016 6:08 pm
by saintofinternet
Hopefully wierd stuff don't happen to the layout
can i keep your photo around all my installations as an inspiration?? :)

are you having a clear LOS for 150kms? because i thought the earth's curvature spoils RF signals when you work in the GHz frequencies.

please correct me if i am wrong.
That is true.

I haven't checked LOS when curvature is calculated.

For this link I only want stability, the tower at B are providing internet to mostly farmers with voip, since there is no cellphone reception.

I think it is near perfect because point A has a elevation of 1.9Km and B 1.1Km

Any good tool to check the fresnel clerance?
if you can PM or Email me the Co-ordinates i can send you the complete terrain details. i use Radio Mobile.

Re: Full Duplex PTP over 7 to 14Kms

Posted: Thu Mar 03, 2016 11:15 am
by p3rad0x
if you can PM or Email me the Co-ordinates i can send you the complete terrain details. i use Radio Mobile.
Co-Ordinates sent :D

Re: Full Duplex PTP over 7 to 14Kms

Posted: Sat Aug 05, 2017 7:07 pm
by victors0991
I dint understand. Can ospf double bandwitdh? Or only layer2 bondiing?