CRS Documentation

Hardware MikroTik hardware general
41

First load test also went well, copying data between the servers and through the trunk up and down in same time, speeds 30Mbit/s internet traffic at all time, up and down in same time 70-90Mbit/s copy between servers. The LAB servers had only 100Mbit/s interfaces that is whi speed is below 100Mbit/s. I let it run for some time and did not notice anything unusal.

So it is time to move on with CRS, to see how it works in a limited production environment, with gigabit and all nice stuff. I will be back with more information about it in some time.

There are remaining questions, how does CRS handle spanning tree and broadcast storms and garbagled packages ?
I am used to Cisco and HP, they deal with it in a good manner.

42

I’ve duplicated the config, mostly, for what steen has done. I have the switch working almost as expected now. However all the ports assigned to vlan 100 for example, seem to be leaking, traffic on the tx side is equal on all ports in that vlan.

This has caused two strange issues, my Konica Minolta 2430DL is inaccessible, even though all other devices on my network are fine. And my freenas server is accessible via ping and scp, but not smb and https. Literally nothing has changed on my clients other than swapping my old cisco switch with this one.

Also, I can’t get the wireless to work. Bridged to port 2 where I have the master port with all my vlan’s, I get no rx on the bridge. Setting it to bridge from wireless to vlan100 (primary network), I get traffic but can’t pickup my DHCP server.

I’ve attached my config, if anyone could please help me fix these last few issues, I’d very much appreciate it!
badbleedandwifi.rsc (23.3 KB)

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@michaelahess
The Ingress VLAN translation rules need enabled source address learning (sa-learning=yes), that will prevent traffic flooding.

And seems that wireless interface should be bridged with specific VLAN interfaces which have IP addresses and DHCP servers configured.

44

I enabled SA Learning on all ports on vlan100, traffic dropped considerable but it still seems like there is something doing a lot of broadcasts. I fired up Torch and it froze the device after a short while. A reboot didn’t help, I had to default and restore a previous backup.

Now I’m running with SA Learning on all ports, and wireless bridged to a vlan, DHCP is applied to the bridge now, I’d tried applying to the vlan which was apparently wrong. I will do a wireshark on my Freenas server as I still have only random ability to access that device. Everything else seems to be working.

Thanks for the help becs!!!

45

Hello Folks!

I have another strange issue with CRS, the sfp cage leds is normally on regardless it is enabled or not, I do not have any sfp device attached either. But on one of the CRS the led is on during boot and then shut off when CRS comes available after boot is finished. It came after upgrading to RoS6.15, all other CRS has lights on so to say.

I have no gbic to test with to see if it is broken in a way.

Any who have observed this “led” issue ?

46

Okidoki, led issue solved by doing a rollback on the trouble device.

  1. resetted to fectory default with no default settings, led still off.

  2. rolled back to RoS6.13 restarted with powe cycle afterwards etc, sfp led still off.

  3. rolled back system routerboard firmware to 3.14, sfp led now on like before.

  4. upgrade to RoS6.14, whole CRS hang at starting service had to do a power cycle, led is now off and there is no system routerboard firmware 3.15

So it got broken at this stage, at least for this CRS, strange that all except this one worked.

  1. upgrade to RoS6.15 again, led is off..
  2. upgrade to system routerboard firmware 3.16, led is off..

Okey, next up is then a full reset again and netinstall to see if it helps.
Still no sfp led.

So it seems like CRS sfp is broken from RoS6.13