I agree, at least try to figure it out. I would replace the RB and see
what happens. Never rule out MikroTik ethernet being stupid!
On 4/6/2015 3:12 PM, Ken Hohhof wrote:
I have other sites with 450G and 493G in same configuration, also
2011. So I'm thinking it's something else, or a bad router. If I
were to replace it with something else, I have an 850Gx2 sitting
here. But this site only has one AP, so that would be overkill. It
doesn't look like this site will ever have enough subs to get
sectorized, so the easiest thing would be to just put a Syncpipe
Parasitic up there. But I'd like to get to the bottom of the problem.
-----Original Message----- From: George Skorup (Cyber Broadcasting)
Sent: Monday, April 06, 2015 3:05 PM
To: [email protected]
Subject: Re: [AFMUG] 10/100 vs GigE SyncInjector
Replace it with a 750GL?
On 4/6/2015 2:52 PM, Ken Hohhof wrote:
This is a 450G on 6.19.
The main symptom is port up/down events in the log.
If it's bad enough, the router will start showing that it is only
advertising 10M to the peer, and the status will go to 10M.
-----Original Message----- From: George Skorup (Cyber Broadcasting)
Sent: Monday, April 06, 2015 2:39 PM
To: [email protected]
Subject: Re: [AFMUG] 10/100 vs GigE SyncInjector
I have two 10/100 SyncInjectors at two sites. One is a RB1100AHx2 still
on v5.25. The other is a RB493G on v6.21.1. I don't see any negotiation
issues or CRC/FCS errors, etc.
Also, I don't think the GigE PoE on the 450 uses all 8 wires for power,
still only 4, 5, 7 & 8 are powered.
On 4/6/2015 12:20 PM, Ken Hohhof wrote:
I've mostly gotten rid of problems with Mikrotik ports not wanting
to work at 100M when 450 APs are powered from a 10/100 Syncinjector,
by changing out the WB surge suppressors from LV to GigE. One site
still seems to have some issues, which go away if using the onboard
GPS and turning off sync over power.
So I can change out the router, Syncinjector, surge suppressor,
cable or AP. If changing out the Syncinjector, I could use another
10/100 version or spend the extra money for the GigE version.
Has anyone done a comparison? Is there any difference between the
10/100 and GigE versions as far as sync over power making Mikrotik
Ethernet ports flap at 100M and then stop advertising 100M
altogether? I'm thinking it could be worse because the power is
actually going on the data pins via the transformers, or better
because it is using all 8 wires, or maybe it makes no difference
since power is still not across twisted pairs.
I do realize I won't get more than 100 Mbps throughput unless I use
the GigE version (duh!), but that doesn't seem to be a major issue
with 20 MHz channels and 256QAM.
