Link Aggregate size not allowed

dstrait · Post by **dstrait** » 01 May 2019 11:42

I am creating some LACP linkaggs and ran into the error of "Link Aggregate size not allowed".

It seems I can only create sizes 2,4,8. Is this a standard of the LACP protocol? I originally wanted 5 member ports, as I was going to linkagg to port one of a 5 switch stack.

If this is indeed a limitation of the protocol, I know I could oversize it to 8 and only use five, but would that be bad practice or is that perfectly acceptable?

Post by **silvio** » 01 May 2019 12:37

There is no problem with larger size.
regards
Silvio

dstrait · Post by **dstrait** » 01 May 2019 13:38

Thank you. I may just oversize it to 8, then. However, is this an Alcatel Specific restriction or part of the standard?

Post by **silvio** » 03 May 2019 14:38

not sure. I think it is because the reservation of hardware resources. The load balancing will be done in hardware. And nowhere you will find f.e. 5 register (or so). So 2, 4 and 8 is possible. But in actual hardware there is no problem with this reservation. In older switches it where a problem if you have f.e. 32 LAG, and for all of them the switch has to reserve 8 resources.
regards
Silvio

Firebor · Post by **Firebor** » 26 May 2019 01:07

Hi,

There is no way I am allowed to make a first post.

I tried rephrasing the content to allow it, but still in vain.

Kindly let me know what could be the problem.

Thanks

Alcatel Unleashed