We attempted to connect an RB260GS freshly loaded with latest 1.14 to a Ciena 3930 that was placed at a site by ATT.
The connection was GigE copper - with a 6 foot Cat6 cable.
We are still trying to determine the exact setting of the Ciena GigE port from ATT, but we believe they are hard-coded to 100/Full (the circuit is 100/Full).
We previously had a Cisco UBR7225VXR/NPE-G2 connected at 100/Full (hard-coded as well) to he Ciena and had no problems.
But … we needed to ‘extend’ the circuit to another building over 500’ via single mode fiber and move the Cisco 7225 to the new building.
The UBR7225VXR/NPE-G2 got loaded with a Cisco compatible SFP and we used the S-31DLC20D in the Microtik.
After upgrading to 1.14, everything on the fiber side was happy as a clam (fyi - fiber port was not happy before we upgraded, it exhibited many of the behaviors already noted in the change logs).
But we could NOT get the RB260GS to play nice with the Ciena 3930. We tried by autonegotiate and hard-coded at 100/Full. Although it appeared to link up at 100/Full — we were showing Collisions on the RB260GS in bursts that seemed like one side was doing half duplex.
Since these also appear to negotiate auto-mdi/mdi-x - we tried both a straight through and gigE crossover cable (yes all 4 pairs swapped - not just 2 like I’ve seen tons of people make).
I’m sorry, we are not in a position to do any more testing against a Ciena - this site was 10 hours away and in production use back fat and happy with a Cisco 3560G connected to it.
All of our bench testing before deployment was to Cisco and Juniper ports and we didn’t see any issues with either of those vendors.
My question to the forum is – anyone else have problems with interoperability / negotiation with other vendors?