I hope someone can shed some light on this! I brought a CCR1036-8G-2S+ a few weeks ago expecting to use the SFP+ ports in the future. But since this we have had some other connections added in the datacentre which means the router needs a fiber connection to the remote peer.
So i went out and brought 2 x S-31DLC20D 1.25G Singlemode SFP modules.
one was to go in the existing CCR1036-12G-4S and other for the new router.
This is where to problem occurred the CCR1036-12G-4s worked 1st time no problems at all but the CCR1036-8G-2S+ would show link OK on the status but no link on the switch at the other end of the fibre it also shows tx Power as blank and rx power at -9dBm.
But as soon as you put this module in the other router it works straight away so its not the module or the fiber. I have also tried locking the speed at 1G full duplex it seams to make no odds and we also got the peer the other end to lock the speed still nothing.
I have also send a supout to mikrotik with some really useless reply’s “try disabling and enabling the port”
Just trying to figure if anyone else may have had any similar problems.
We just got our hands on 2 sample CCR1036-8G-2S+ and experiencing exactly the same issue.
10G sfp modules work flawlessly, however, we could not get any one of the 1G modules we have (we have both mikrotik single/dual fiber and third party) to work.
When cable is connected, it is recognized as link ok but no data can pass through. I cannot ping to other side and I cannot see other device in neighbors.
We have tried every combination of ARP/autonegotiation, multiple disable/enables, trying with vlans and no luck.
If we remove the sfp module from 8G-2S+ and plug it into a CCR1036-12G-4S, it starts working immediately.
We are currently happy with one port working with 10G sfp as we just upgraded our upstream to a 10g port, but not being able to use the second port with a 1g sfp module is a disappointment.
I hope a software update will be able to fix this problem in near future.
to achieve successful fiber link between CCR1036-8G-2S+ and CCR1036-12G-4S or any other SFP device you need to:
*) disable auto-negation and set interface speed to 1Gbps to routers on both sides.
*) re-plug module or disable/enable interface after these changes.
when this is done link should be active.
regarding lack of information “Tx Power” field I suspect that dmi information fetching from module failed. Reboot or power cycle should fix this state.
are you all not able to plug in the CRR-1036-2S+ a SFP+ transceiver and in the CCR-1036-8G-2S a SFP transceiver
so that the right transceivers are plugged in the right router on each side and then you are plug in the cables.
Our problem is plugging SFP modules into the SFP+ slots and having things not work right.
The SFP’s are known good however when in the 10Gig slots they are being auto negotiated as 1G
Normis had said in a post on here that they should be usable at both 1 and 10 gig so was looking at doing that with 1 gig to start and going to 10 once the SFP+'s arrive.
When I turn off auto negotiation they set to “1Gig” but the link still doesn’t work between them
I have tried rebooting the machines and I haven’t seen that fix this issue however @krisjanis says setting both ends to manual 1G and rebooting should work (not my experience) but if anyone else can try and see if they can confirm this?
I can confirm locking both ends makes no difference! The strange thing is even if you lock it at say 100mbits full duplex it still shows the link running at that speed! which im sure is not correct!
Our problem is plugging SFP modules into the SFP+ slots and having things not work right.
The SFP’s are known good however when in the 10Gig slots they are being auto negotiated as 1G
Normis had said in a post on here that they should be usable at both 1 and 10 gig so was looking at doing that with 1 gig to start and going to 10 once the SFP+'s arrive.
When I turn off auto negotiation they set to “1Gig” but the link still doesn’t work between them
I have tried rebooting the machines and I haven’t seen that fix this issue however @krisjanis says setting both ends to manual 1G and rebooting should work (not my experience) but if anyone else can try and see if they can confirm this?
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To what device are you trying to connect CCR1036-8G-2S+?
CRS125-24G-1S - Supout’s above in this post chain
CCR1036-12G-4S - Ticket number: 2013120266000148
Keeping it in the family
I suspected possible vender weirdness with the CCR-CCR link as it was non mikrotik optics (make 80Km CWDM / DWDM lasers ) but now tested to the CRS with official mikrotik optics and still issue as above in this post.
Can Mikrotik not replicate this issue? It is as simple as using 2x CCR1036-8G-2S+ and using 2 Mikrotik 1GB modules (not 10G modules) and see that they do NOT work!
I have been looking for exact part number slarner has suggested and cannot find one.
5 different brands of sfp’s I have, including the Mikrotik ones, does NOT work with 8G-2S+. All of these SFPs work with 12G-4S without any issues…
I have this similar router with MikroTik S-3553LC20D pairs, i put the SFP blue one in the router and in the other site i have the yellow one in a Meridian MS8GT4GX4. When the fiber is connected i see SFP LIGHT ON and i don’t have connection between them. In the Winbox i see the interface registered but i only see TX traffic. I try with others sfp modules and it’s always the same. I’m thinking maybe it’s a soft problem because when i try CCR=SPF"MIKROTIK"=><=SPF"MIKROTIK"=CCR Works perfect.
This Meridian MS8GT4GX4 Works fine with other devices, not with my CCR’s 1036-12G-4S…
No problem I really think it should be also even the best if anyone find out something
and then he is sharing this with all others! So the world will never stops and turns around.
) but now tested to the CRS with official mikrotik optics and still issue as above in this post.