For some reason duplicate DCF interfaces are generated occasionally within our Cisco CBR-8 driver:
In the driver, we create DCF interfaces with the line below, and in table 44000 we only have 1 line per primary key (as expected):
In another element running the same driver, we do not have this problem.
What could be causing this problem, and how could we resolve it?
Could you provide the full driver name and version?
The Cisco CBR-8 has different ranges with different implementations.
Normally dynamically created interfaces start at ID 100000.
I’m seeing interfaces with an id of 150000 and higher. Are there over 50000 interfaces being created?
This is good information. At one point in the past, there were over 5000 DCF interfaces being generated. We noticed this caused problems, and so we adding some conditionals to generate fewer interfaces about a month ago. However, this was for a different interface type, not the RPDs.
Hi Jan, indeed. This is the 3.0.0.1 version of the driver, a customer specific range.
I neglected to mention one thing – table 44000 is also creating DVEs. You should see that within the driver. To fix the issue, we simply turned off DVE creation within the driver, and turned it back on.
Of course, I am still curious as to the cause and if that can be prevented.