While in the process of replacing a 2910 switch with a 2930 the process had to stop as the 2930 with same J4858c SFP that worked with the 2910 will not layer 1 connect to the Ciena switch.
This is the same J4858c SFP that worked properly with the 2910.
The 2930 will connect to another HP 29xx series switch with that SFP.
The Ciena is using a xcvr-b00g85a sfp.
Any help appreciated.