I got my 40gb DAC (10gtek) and the Emulex card. I updated firmware to latest. The ICX saw 4 10gb ports up, but the Emulex reports only a 40gb port. I didn't find any knobs or documentation to tell it to use breakout mode. There is multichannel mode but that isn't the same thing.
I do have a 40gb MTP MM SFP and a fiber breakout cable. I'll see if that's any different.
What I really want is a switch with 4x40gb ports and 16x10gb ports at a Mikrotik price point. I can dream.
Do you still have this card and the 6610?
Are you able to update the firmware to latest on the card and then also flash it to change mode to 4x10 instead of 1x40?
I suspect it was an added feature, it was definitely added in 2016 firmware to OCe14401B (reference:
https://docs.broadcom.com/doc/12356067), cant find the OCe14401 reference that it was added but this document clearly shows its possible on the OCe14401-UX, just searching Broadcoms site makes me want to vomit excessively.
Page 392, section 5.16.2 specifically lists this card if it is a OCe14401-UX indeed
HTML:
GetLinkConfig
This command displays the active and configured link configuration IDs and lists the available link configurations (descriptions).
NOTE The link reconfiguration feature is available on only some OCe14000-series adapters.
Supported By
Linux, Solaris, Windows, and Windows + CIM Provider on a VMware host
Syntax
GetLinkConfig <MAC|WWPN>
Parameters
WWPN The WWPN of any FCoE function on the adapter.
MACThe MAC address of any NIC+RoCE or iSCSI function on the adapter.
Example
OCM: brcmhbacmd GetLinkConfig 00-90-fa-41-28-f0
Active Link ID: 19
Configured Link ID: 19
Available Link Configurations
ID Description
-- ---------------------------------
19 1x40Gbps QSFP+ OCe14401-UX CNA
20 4x10Gbps SFP+ OCe14401-UX CNA
Also to note about cables, again in relation to OCe14401B (reference:
https://docs.broadcom.com/doc/12378898)
Not sure what these are, but suspect not a problem with a DAC
Code:
Other Known Issues.
Certain Cisco breakout cables are not properly detected by the OCe14401B adapter.
The following Cisco breakout cables do not provide the correct codes to the OCe14401B adapter to support the SFF-8436 standard:
QSFP-4X10G-AOC10M
QSFP-4X10G-AOC7M
QSFP-4X10G-AOC5M
QSFP-4X10G-AOC3M
QSFP-4X10G-AOC2M
QSFP-4X10G-AOC1M
If you are using one of these cables to connect an OCe14401B adapter to a Cisco Nexus-series switch, the following error is reported:
Optics faulted/incorrectly installed/not installed -Reseat optics, if issue not resolved, replace. Link is Non Operational
Workaround
Use Arista, Brocade, or International Business Machines (IBM) breakout cables with OCe14401B adapters.