High distance numbers on short wireless links
We have a couple of short range Mikrotik wireless links, in the range of a couple of hundred metres, they are running 802.11 protocol and have good CCQ and SNR, however I have noticed that the distance shown for the link is high, around 25km, but everything else is correct. The sync speeds are also good, however we are noticing some strange behaviour on them from time to time which indicates high latency and packet loss. Possibly it's interference, but if it was sporadic I would have thought the distance indication would be more accurate most of the time when it was working OK and had no interference. Being that the stats look good but the distance looks bad, does anybody have any suggestions on what to look for on these ? Thanks Paul
In the advanced tab is distance set to Dynamic or 10km (the min it will go)? *distance* (*integer | dynamic | indoors*; Default: *dynamic*) How long to wait for confirmation of unicast frames before considering transmission unsuccessful. Value 'dynamic' causes AP to detect and use smallest timeout that works with all connected clients. Acknowledgments are not used in Nstreme protocol. What units are they? 802.11n or ac? Do you have adaptive noise immunity on? On Thu, 4 Jul 2019, at 11:26, Paul Julian wrote:
We have a couple of short range Mikrotik wireless links, in the range of a couple of hundred metres, they are running 802.11 protocol and have good CCQ and SNR, however I have noticed that the distance shown for the link is high, around 25km, but everything else is correct. The sync speeds are also good, however we are noticing some strange behaviour on them from time to time which indicates high latency and packet loss. Possibly it's interference, but if it was sporadic I would have thought the distance indication would be more accurate most of the time when it was working OK and had no interference.
Being that the stats look good but the distance looks bad, does anybody have any suggestions on what to look for on these ?
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/>
Hi Jason, Thanks for the suggestions. The AP is set for Dynamic, the strange thing is though that the CPE thinks the link is 1km, the AP thinks it's 25km. The link is configured for 802.11ac 20Mhz channel and is connected as that as well, no nstreme or NV2. On one end is an SXT5ac and the other end is an SXTsq5 ac I don't have adaptive noise immunity set. Regards Paul -----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Jason Hecker Sent: Thursday, 4 July 2019 12:16 PM To: public@talk.mikrotik.com.au Subject: Re: [MT-AU Public] High distance numbers on short wireless links In the advanced tab is distance set to Dynamic or 10km (the min it will go)? *distance* (*integer | dynamic | indoors*; Default: *dynamic*) How long to wait for confirmation of unicast frames before considering transmission unsuccessful. Value 'dynamic' causes AP to detect and use smallest timeout that works with all connected clients. Acknowledgments are not used in Nstreme protocol. What units are they? 802.11n or ac? Do you have adaptive noise immunity on? On Thu, 4 Jul 2019, at 11:26, Paul Julian wrote:
We have a couple of short range Mikrotik wireless links, in the range of a couple of hundred metres, they are running 802.11 protocol and have good CCQ and SNR, however I have noticed that the distance shown for the link is high, around 25km, but everything else is correct. The sync speeds are also good, however we are noticing some strange behaviour on them from time to time which indicates high latency and packet loss. Possibly it's interference, but if it was sporadic I would have thought the distance indication would be more accurate most of the time when it was working OK and had no interference.
Being that the stats look good but the distance looks bad, does anybody have any suggestions on what to look for on these ?
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/> _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Set distance to indoors that way there is no ambiguity that you want a short timeout. The shortest non indoors distance I recall you can manually set is 10km. On Thu, 4 Jul 2019, at 15:54, Paul Julian wrote:
Hi Jason,
Thanks for the suggestions. The AP is set for Dynamic, the strange thing is though that the CPE thinks the link is 1km, the AP thinks it's 25km. The link is configured for 802.11ac 20Mhz channel and is connected as that as well, no nstreme or NV2. On one end is an SXT5ac and the other end is an SXTsq5 ac
I don't have adaptive noise immunity set.
Regards Paul
-----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Jason Hecker Sent: Thursday, 4 July 2019 12:16 PM To: public@talk.mikrotik.com.au Subject: Re: [MT-AU Public] High distance numbers on short wireless links
In the advanced tab is distance set to Dynamic or 10km (the min it will go)?
*distance* (*integer | dynamic | indoors*; Default: *dynamic*) How long to wait for confirmation of unicast frames before considering transmission unsuccessful. Value 'dynamic' causes AP to detect and use smallest timeout that works with all connected clients. Acknowledgments are not used in Nstreme protocol.
What units are they? 802.11n or ac?
Do you have adaptive noise immunity on?
On Thu, 4 Jul 2019, at 11:26, Paul Julian wrote:
We have a couple of short range Mikrotik wireless links, in the range of a couple of hundred metres, they are running 802.11 protocol and have good CCQ and SNR, however I have noticed that the distance shown for the link is high, around 25km, but everything else is correct. The sync speeds are also good, however we are noticing some strange behaviour on them from time to time which indicates high latency and packet loss. Possibly it's interference, but if it was sporadic I would have thought the distance indication would be more accurate most of the time when it was working OK and had no interference.
Being that the stats look good but the distance looks bad, does anybody have any suggestions on what to look for on these ?
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/> _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/>
OK Thanks, I might try that setting and see if it helps. Regards paul -----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Jason Hecker Sent: Thursday, 4 July 2019 4:18 PM To: public@talk.mikrotik.com.au Subject: Re: [MT-AU Public] High distance numbers on short wireless links Set distance to indoors that way there is no ambiguity that you want a short timeout. The shortest non indoors distance I recall you can manually set is 10km. On Thu, 4 Jul 2019, at 15:54, Paul Julian wrote:
Hi Jason,
Thanks for the suggestions. The AP is set for Dynamic, the strange thing is though that the CPE thinks the link is 1km, the AP thinks it's 25km. The link is configured for 802.11ac 20Mhz channel and is connected as that as well, no nstreme or NV2. On one end is an SXT5ac and the other end is an SXTsq5 ac
I don't have adaptive noise immunity set.
Regards Paul
-----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Jason Hecker Sent: Thursday, 4 July 2019 12:16 PM To: public@talk.mikrotik.com.au Subject: Re: [MT-AU Public] High distance numbers on short wireless links
In the advanced tab is distance set to Dynamic or 10km (the min it will go)?
*distance* (*integer | dynamic | indoors*; Default: *dynamic*) How long to wait for confirmation of unicast frames before considering transmission unsuccessful. Value 'dynamic' causes AP to detect and use smallest timeout that works with all connected clients. Acknowledgments are not used in Nstreme protocol.
What units are they? 802.11n or ac?
Do you have adaptive noise immunity on?
On Thu, 4 Jul 2019, at 11:26, Paul Julian wrote:
We have a couple of short range Mikrotik wireless links, in the range of a couple of hundred metres, they are running 802.11 protocol and have good CCQ and SNR, however I have noticed that the distance shown for the link is high, around 25km, but everything else is correct. The sync speeds are also good, however we are noticing some strange behaviour on them from time to time which indicates high latency and packet loss. Possibly it's interference, but if it was sporadic I would have thought the distance indication would be more accurate most of the time when it was working OK and had no interference.
Being that the stats look good but the distance looks bad, does anybody have any suggestions on what to look for on these ?
Thanks Paul _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/> _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/> _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
participants (2)
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Jason Hecker -
Paul Julian